CN109560354B - Low-loss single-pole single-throw radio frequency switch - Google Patents
Low-loss single-pole single-throw radio frequency switch Download PDFInfo
- Publication number
- CN109560354B CN109560354B CN201811375566.7A CN201811375566A CN109560354B CN 109560354 B CN109560354 B CN 109560354B CN 201811375566 A CN201811375566 A CN 201811375566A CN 109560354 B CN109560354 B CN 109560354B
- Authority
- CN
- China
- Prior art keywords
- inner conductor
- conductor
- outer conductor
- radio frequency
- sliding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/10—Auxiliary devices for switching or interrupting
- H01P1/12—Auxiliary devices for switching or interrupting by mechanical chopper
Landscapes
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
- Waveguide Switches, Polarizers, And Phase Shifters (AREA)
Abstract
The invention discloses a low-loss single-pole single-throw radio frequency switch, which comprises a first inner conductor, a second inner conductor and a third outer conductor, wherein a through hole is formed in the middle of the third outer conductor, the first inner conductor and the second inner conductor are coaxially installed and fixed in the inner through hole of the third outer conductor, one end of the first inner conductor is positioned at the left end of the inner through hole of the third outer conductor, one end of the second inner conductor is positioned at the right end of the inner through hole of the third outer conductor, a blind hole is formed in the right end of the first inner conductor, a small spring, a driven magnetic steel and a sliding inner conductor are sequentially arranged in the blind hole from left to right, the sliding inner conductor can slide left and right in the blind hole, and the sliding inner conductor is separated from the second inner conductor when sliding to the leftmost end, and the low-loss single-pole single-throw radio frequency switch: the radio frequency switch can realize the on-off function of signals and has the characteristics of low loss and capability of transmitting high-power signals; novel structure, easy processing, easy assembly, the cost is lower.
Description
Technical Field
The invention belongs to the technical field of radio frequency switches, and particularly relates to a low-loss single-pole single-throw radio frequency switch.
Background
With the development of microwave technology, radio frequency switches are more and more widely applied to high-power systems such as over-the-horizon radars, airborne high-power transmitters, high-altitude tests and the like, and the radio frequency switches are required to have the characteristics of low loss and high-power signal resistance.
At present, the single-pole single-throw radio frequency switch mostly adopts an integrated circuit scheme, for example, the application numbers are: 201510481744.4 discloses a single-pole single-throw radio frequency switch and a single-pole double-throw radio frequency switch and a single-pole multiple-throw radio frequency switch formed by the same.
The radio frequency coaxial adapter is a coaxial line transmission structure, has the characteristics of low standing wave, low insertion loss and high isolation, can transmit high-power signals, cannot be disconnected once being connected in a microwave system, cannot realize the function of switching on and off the signals at any time, and is inconvenient to use.
Disclosure of Invention
The low-loss single-pole single-throw radio frequency switch is provided for solving the problems that a radio frequency coaxial adapter in the prior art cannot be disconnected after being connected in a microwave system, cannot realize the function of switching on and off signals at any time and is inconvenient to use.
A low-loss single-pole single-throw radio frequency switch includes a first inner conductor, a second inner conductor, and a third outer conductor.
And a through hole is formed in the middle of the third outer conductor, the first inner conductor and the second inner conductor are coaxially installed and fixed in the inner through hole of the third outer conductor, one end of the first inner conductor is positioned at the left end of the inner through hole of the third outer conductor, and one end of the second inner conductor is positioned at the right end of the inner through hole of the third outer conductor.
The blind hole is arranged at the right end of the first inner conductor, the small spring, the driven magnetic steel and the sliding inner conductor are sequentially arranged in the blind hole from left to right, the sliding inner conductor can slide left and right in the blind hole, the sliding inner conductor is separated from the second inner conductor when sliding to the leftmost end, and the sliding inner conductor is contacted and communicated with the second inner conductor when sliding to the rightmost end.
The third outer conductor is provided with driving magnetic steel, the driving magnetic steel can move left and right on the third outer conductor, and the surface of the driven magnetic steel opposite to the driving magnetic steel is the homopolar of the magnetic steel magnetic field.
On the basis of the scheme, the low-loss single-pole single-throw radio frequency switch is characterized in that an annular groove D is formed in the outer wall of the third outer conductor along the length direction, the left end of the annular groove D is closed, the right end of the annular groove D is open, a large spring, driving magnetic steel and a gear sleeve are sequentially arranged in the annular groove D from left to right, and the gear sleeve is in threaded connection with the outer wall of the third outer conductor.
On the basis of the scheme, the low-loss single-pole single-throw radio frequency switch is characterized in that a sliding lantern ring is arranged between the driving magnetic steel and the gear sleeve, an annular groove C is formed in the end part of the third outer conductor, and the large lantern ring is fixed in the groove of the gear sleeve and is positioned in the annular groove C.
Preferably, in the low-loss single-pole single-throw radio frequency switch, a connection hole matched with the inner conductor is formed in the right end of the second inner conductor.
Preferably, the low-loss single-pole single-throw radio frequency switch has the advantages that the first inner conductor is fixedly installed by the first outer conductor, the second outer conductor, the protective lantern ring and the medium support, the medium support is sleeved with the medium support, the protective lantern ring is sleeved on the medium support, the medium support is limited in the axial freedom degree of the first inner conductor by the step surface on the first inner conductor, the first outer conductor and the second outer conductor are provided with through holes, mutually-matched positioning surfaces are arranged in the through holes, the first outer conductor and the second outer conductor are connected through threads, and the protective lantern ring and the medium support are clamped and positioned by the mutually-matched positioning surfaces.
Preferably, the low-loss single-pole single-throw radio frequency switch, the second inner conductor is fixedly installed by a fourth outer conductor, a protective sleeve ring and a dielectric support, the dielectric support is sleeved on the second inner conductor, the protective sleeve ring is sleeved on the dielectric support, the dielectric support is limited by a step surface on the second inner conductor in the axial direction of the second inner conductor, the fourth outer conductor is provided with a through hole, the fourth outer conductor is connected with the third outer conductor through a thread, mutually-matched positioning surfaces are arranged in the through hole of the connecting end of the fourth outer conductor, and the protective sleeve ring and the dielectric support are clamped and positioned by the mutually-matched positioning surfaces.
On the basis of the scheme, the low-loss single-pole single-throw radio frequency switch is characterized in that the left end of the first outer conductor and the right end of the fourth outer conductor are both rotatably connected with threaded sleeves, small clamping rings are fixedly mounted in the threaded sleeves, and the small clamping rings are located in annular grooves formed in the left end of the first outer conductor and the right end of the fourth outer conductor.
Preferably, the sliding inner conductor of the low-loss single-pole single-throw radio frequency switch is fixedly bonded with the driven magnetic steel.
The invention has the beneficial effects that:
1. the radio frequency switch can realize the on-off function of signals and has the characteristics of low loss and capability of transmitting high-power signals;
2. novel structure, easy processing, easy assembly, the cost is lower.
Drawings
FIG. 1 is a schematic overall structure diagram of an embodiment of the present invention;
FIG. 2 is a diagram illustrating operational relationships according to an embodiment of the present invention;
FIG. 3 is a diagram illustrating a conducting state of a microwave path according to an embodiment of the present invention;
FIG. 4 is a diagram illustrating a microwave path in a disconnected state according to an embodiment of the present invention;
fig. 5 is a schematic diagram of an outer conductor structure according to an embodiment of the invention.
Detailed Description
The technical scheme of the invention is further explained by combining the attached drawings in the embodiment of the invention.
A low loss single pole single throw radio frequency switch comprises a first inner conductor 2, a second inner conductor 11 and a third outer conductor 12.
A through hole is formed in the middle of the third outer conductor 12, the first inner conductor 2 and the second inner conductor 11 are coaxially mounted and fixed in the inner through hole of the third outer conductor 12, wherein one end of the first inner conductor 2 is located at the left end of the inner through hole of the third outer conductor 12, and one end of the second inner conductor 11 is located at the right end of the inner through hole of the third outer conductor 12.
The right end of the first inner conductor 2 is provided with a blind hole, a small spring 8, a driven magnetic steel 9 and a sliding inner conductor 10 are sequentially arranged in the blind hole from left to right, the sliding inner conductor 10 can slide left and right in the blind hole, the sliding inner conductor 10 is separated from the second inner conductor 11 when sliding to the leftmost end, and the sliding inner conductor 10 is contacted and communicated with the second inner conductor 11 when sliding to the rightmost end.
The third outer conductor 12 is provided with a driving magnetic steel 17, the driving magnetic steel 17 can move left and right on the third outer conductor 12, and the surface of the driven magnetic steel 9 opposite to the driving magnetic steel 17 is the homopolar of the magnetic steel magnetic field.
Further, as shown in fig. 5, an annular groove D is formed in the outer wall of the third outer conductor 12 along the length direction, the left end of the annular groove D is closed, the right end of the annular groove D is open, a large spring 18, a driving magnetic steel 17 and a gear sleeve 15 are sequentially arranged in the annular groove D from left to right, and the gear sleeve 15 is in threaded connection with the outer wall of the third outer conductor 12.
Further, as shown in fig. 5, a sliding collar 16 is disposed between the driving magnetic steel 17 and the shift sleeve 15, an annular groove C is formed at an end of the third outer conductor 12, and the large snap ring 14 is fixed in the groove of the shift sleeve 15 and is located in the annular groove C.
Preferably, the left end of the second inner conductor 11 is provided with a connecting hole matched with the sliding inner conductor 10.
Further, first inner conductor 2 is propped 7 installation fixings by first outer conductor 4, second outer conductor 5, the protection lantern ring 6, medium, 2 suit mediums of first inner conductor prop 7, and the medium props 7 and goes up suit protection lantern ring 6, and the medium props 7 and restricts its at 2 axial ascending degrees of freedom of first inner conductor by the step face on the first inner conductor 2, and first outer conductor 4 and second outer conductor 5 set up the through-hole, open the locating surface of establishing mutual adaptation in the through-hole, and first outer conductor 4 passes through threaded connection with second outer conductor 5, and the locating surface of mutual adaptation is propped 7 tight location with the protection lantern ring 6, medium.
Further, the second inner conductor 11 is fixedly installed by a fourth outer conductor 13, a protective sleeve ring 6 and a medium support 7, the medium support 7 is sleeved on the second inner conductor 11, the protective sleeve ring 6 is sleeved on the medium support 7, the medium support 7 is limited in the axial freedom of the second inner conductor 11 by a step surface on the second inner conductor 11, a through hole is formed in the fourth outer conductor 13, the fourth outer conductor 13 is in threaded connection with the third outer conductor 12, mutually-matched positioning surfaces are formed in the through hole of the connecting end of the fourth outer conductor, and the protective sleeve ring 6 and the medium support 7 are clamped and positioned by the mutually-matched positioning surfaces.
Further, the left end of the first outer conductor 4 and the right end of the fourth outer conductor 13 are both rotatably connected with a threaded sleeve 1, a small snap ring 3 is fixedly mounted in the threaded sleeve 1, and the small snap ring 3 is located in an annular groove formed in the left end of the first outer conductor 4 and the right end of the fourth outer conductor 13. The screw sleeve 1 is fixed on the first outer conductor 4 through a small clamping ring 3, and the screw sleeve 1 can rotate freely and is used for being connected into a microwave system.
Preferably, the sliding inner conductor 10 is fixedly bonded with the driven magnetic steel 9 and is positioned in a middle hole of the first inner conductor 2 together with the small spring 8, the sliding inner conductor 10 can freely slide left and right in the middle hole of the first inner conductor 2, and the sliding inner conductor 10 can be contacted and communicated with the second inner conductor 11 under the elastic force of the small spring 8.
The opposite surfaces of the driven magnetic steel 9 and the driving magnetic steel 17 are homopolar of a magnetic steel magnetic field, and the two kinds of magnetic steels can generate a large repulsive force after approaching a certain distance and quickly attenuate the repulsive force after being far away.
Description of the principle:
the first outer conductor 4, the protective lantern ring 6, the second outer conductor 5, the third outer conductor 12, the fourth outer conductor 13, the first inner conductor 2, the medium support 7, the sliding inner conductor 10 and the second inner conductor 11 form a coaxial line transmission cavity, and microwave signals are transmitted in the coaxial line transmission cavity.
Under the mutual repulsion action of like magnetic poles, the driving magnetic steel 17 can push the driven magnetic steel 9 to move leftwards, so that the sliding inner conductor 10 is disconnected from the second inner conductor 11. When the magnetic thrust action of the driving magnetic steel 17 is not available, the driven magnetic steel 9 can move rightwards under the elastic force action of the small spring 8, so that the sliding inner conductor 10 is in contact with the second inner conductor 11. The driven magnetic steel 9 moves left and right, and then pushes the sliding inner conductor 10 fixed together with the driven magnetic steel to move left and right, so that the sliding inner conductor 10 is contacted with or disconnected from the second inner conductor, and then the radio-frequency signal is switched on or off.
Description of the operational relationship, as shown in FIG. 2:
the shift sleeve 15 is freely rotatable on the third outer conductor 12, and the threaded connection converts the rotational movement of the shift sleeve 15 into a left-right linear movement. The large snap ring 14 is located at the groove of the gear sleeve 15 to play a limiting role, and position overshoot of the gear sleeve 15 in the moving process is prevented. When the gear sleeve 15 is rotated, the gear sleeve 15, the sliding collar 16 and the large snap ring 14 can move left and right against the elastic force of the large spring 18.
When the shift sleeve 15 contacts with the surface a of the groove of the third outer conductor 12, the small spring 8 pushes the driven magnetic steel 9 and the sliding inner conductor 10 to the right, so that the sliding inner conductor 10 is completely contacted with the second inner conductor 11, as shown in fig. 3. When the sliding inner conductor 10 is completely in contact with the second inner conductor 11, the microwave transmission path is turned on, and signals can be transmitted by microwaves.
Rotating the shift sleeve 15 moves the large snap ring 14 out of contact with the surface a of the groove of the third outer conductor 12 to the left and eventually into contact with the surface B of the groove of the third outer conductor 12.
In the process, firstly, the shift sleeve 15 pushes and slides the collar 16 and the driving magnetic steel 17 to move to the left against the elastic force of the large spring 18. Due to the repulsion between the same-name magnetic poles, the magnetic field repulsion between the driving magnetic steel 17 and the driven magnetic steel 9 pushes the driven magnetic steel 9 to move leftward against the elastic force of the small spring 8, so that the driven magnetic steel 9 drives the sliding inner conductor 10 fixed together with the driven magnetic steel 9 to move leftward, and finally the sliding inner conductor 10 is disconnected from the second inner conductor 11 and keeps a certain distance, as shown in fig. 4. At this time, the sliding inner conductor 10 is completely disconnected from the second inner conductor 11, the microwave transmission path is disconnected, and the microwave signal cannot be transmitted.
The invention provides a low-loss coaxial single-pole single-throw radio frequency switch based on the conventional integrated circuit type single-pole single-throw radio frequency switch and a radio frequency coaxial adapter.
It will be appreciated that although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A low-loss single-pole single-throw radio frequency switch, characterized by comprising a first inner conductor (2), a second inner conductor (11) and a third outer conductor (12);
a through hole is formed in the middle of the third outer conductor (12), the first inner conductor (2) and the second inner conductor (11) are coaxially installed and fixed in the inner through hole of the third outer conductor (12), one end of the first inner conductor (2) is located at the left end of the inner through hole of the third outer conductor (12), and one end of the second inner conductor (11) is located at the right end of the inner through hole of the third outer conductor (12);
the right end of the first inner conductor (2) is provided with a blind hole, a small spring (8), a driven magnetic steel (9) and a sliding inner conductor (10) are sequentially arranged in the blind hole from left to right, the sliding inner conductor (10) slides left and right in the blind hole, the sliding inner conductor (10) is separated from the second inner conductor (11) when sliding to the leftmost end, and the sliding inner conductor (10) is contacted and communicated with the second inner conductor (11) when sliding to the rightmost end;
the third outer conductor (12) is provided with a driving magnetic steel (17), the driving magnetic steel (17) moves left and right on the third outer conductor (12), and the surface of the driven magnetic steel (9) opposite to the driving magnetic steel (17) is the homopolar of a magnetic steel magnetic field.
2. The low-loss single-pole single-throw radio frequency switch according to claim 1, wherein an annular groove D is formed in the outer wall of the third outer conductor (12) along the length direction, the left end of the annular groove D is closed, the right end of the annular groove D is open, a large spring (18), a driving magnetic steel (17) and a gear sleeve (15) are sequentially arranged in the annular groove D from left to right, and the gear sleeve (15) is in threaded connection with the outer wall of the third outer conductor (12).
3. The low-loss single-pole single-throw radio frequency switch according to claim 2, wherein a sliding collar (16) is arranged between the driving magnetic steel (17) and the gear sleeve (15), an annular groove C is formed in the end of the third outer conductor (12), and the large snap ring (14) is fixed in the groove of the gear sleeve (15) and is positioned in the annular groove C.
4. The low loss single-pole single-throw radio frequency switch according to claim 1, wherein the left end of the second inner conductor (11) is provided with a connecting hole matched with the sliding inner conductor (10).
5. The low-loss single-pole single-throw radio frequency switch according to claim 1, wherein the first inner conductor (2) is fixedly installed by a first outer conductor (4), a second outer conductor (5), a protective lantern ring (6) and a dielectric support (7), the dielectric support (7) is sleeved on the first inner conductor (2), the protective lantern ring (6) is sleeved on the dielectric support (7), the dielectric support (7) is limited in the degree of freedom of the dielectric support in the axial direction of the first inner conductor (2) by a step surface on the first inner conductor (2), the first outer conductor (4) and the second outer conductor (5) are provided with through holes, mutually-matched positioning surfaces are arranged in the through holes, the first outer conductor (4) and the second outer conductor (5) are connected through threads, and the mutually-matched positioning surfaces clamp and position the protective lantern ring (6) and the dielectric support (7).
6. The low-loss single-pole single-throw radio frequency switch according to claim 5, wherein the second inner conductor (11) is fixedly installed by a fourth outer conductor (13), a protective sleeve ring (6) and a dielectric support (7), the dielectric support (7) is sleeved on the second inner conductor (11), the protective sleeve ring (6) is sleeved on the dielectric support (7), the degree of freedom of the dielectric support (7) in the axial direction of the second inner conductor (11) is limited by a step surface on the second inner conductor (11), the fourth outer conductor (13) is provided with a through hole, the fourth outer conductor (13) is in threaded connection with the third outer conductor (12), mutually-matched positioning surfaces are arranged in the through hole of the connecting end, and the protective sleeve ring (6) and the dielectric support (7) are clamped and positioned by the mutually-matched positioning surfaces.
7. The low-loss single-pole single-throw radio frequency switch according to claim 6, wherein the left end of the first outer conductor (4) and the right end of the fourth outer conductor (13) are both rotatably connected with a threaded sleeve (1), a small snap ring (3) is fixedly installed in the threaded sleeve (1), and the small snap ring (3) is located in an annular groove formed in each of the left end of the first outer conductor (4) and the right end of the fourth outer conductor (13).
8. The low loss single pole single throw radio frequency switch according to claim 1, wherein the sliding inner conductor (10) is adhesively secured to the driven magnet steel (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811375566.7A CN109560354B (en) | 2018-11-19 | 2018-11-19 | Low-loss single-pole single-throw radio frequency switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811375566.7A CN109560354B (en) | 2018-11-19 | 2018-11-19 | Low-loss single-pole single-throw radio frequency switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109560354A CN109560354A (en) | 2019-04-02 |
| CN109560354B true CN109560354B (en) | 2020-12-18 |
Family
ID=65866558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811375566.7A Active CN109560354B (en) | 2018-11-19 | 2018-11-19 | Low-loss single-pole single-throw radio frequency switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109560354B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5724014A (en) * | 1996-04-04 | 1998-03-03 | The Narda Microwave Corporation | Latching RF switch device |
| CN104639117A (en) * | 2014-12-12 | 2015-05-20 | 西北核技术研究所 | Air-insulated switch and fast-rise-time high-voltage square wave generator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9444197B2 (en) * | 2012-03-19 | 2016-09-13 | Holland Electronics, Llc | Shielded and multishielded coaxial connectors |
-
2018
- 2018-11-19 CN CN201811375566.7A patent/CN109560354B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5724014A (en) * | 1996-04-04 | 1998-03-03 | The Narda Microwave Corporation | Latching RF switch device |
| CN104639117A (en) * | 2014-12-12 | 2015-05-20 | 西北核技术研究所 | Air-insulated switch and fast-rise-time high-voltage square wave generator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109560354A (en) | 2019-04-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104064871B (en) | The implementation method of a kind of four-way high power broadband rotary gemel | |
| US9112504B2 (en) | High frequency switch | |
| CN109560354B (en) | Low-loss single-pole single-throw radio frequency switch | |
| CN111682289A (en) | State switching mechanism for waveguide switch | |
| US2475647A (en) | Ultra high frequency switch | |
| CN202351424U (en) | Meteorological radar polarization switch assembly | |
| KR100633442B1 (en) | Microwave SPDT switch | |
| CN105097367A (en) | T-type coaxial electromechanical switch | |
| US2784379A (en) | Switch for coaxial lines | |
| JP4949474B2 (en) | Double double throw high frequency switch and tower amplifier using the same | |
| US2473565A (en) | Switch | |
| WO2007111953A2 (en) | Connector activated rf switch | |
| US5642086A (en) | Magnetic switch for coaxial transmission lines | |
| CN116111300B (en) | A multi-channel high-power waveguide switch | |
| US5463358A (en) | Multiple channel microwave rotary polarizer | |
| CN212277352U (en) | State switching mechanism for waveguide switch | |
| CN209747853U (en) | Radio frequency connector with switch function | |
| US20070228839A1 (en) | Connector | |
| KR20110102756A (en) | High frequency switch with switching part of fault ground structure | |
| US3369096A (en) | Coaxial-circuit change-over switch for high frequency | |
| CN215933804U (en) | Mounting base of HDTV antenna | |
| CN208656058U (en) | A kind of two-way independent floating RF coaxial adapters | |
| CN210403978U (en) | Single-pole multi-throw switch suitable for wave beam switching antenna | |
| Nickel et al. | Multichannel rotary joints for surveillance radars-State-of-the-art and future trends | |
| CN102598176B (en) | Switching method, device, application and product thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 266000 No. 98 Xiangjiang Road, Huangdao District, Qingdao City, Shandong Province Patentee after: CLP kesiyi Technology Co.,Ltd. Address before: 266000 No. 98 Xiangjiang Road, Huangdao District, Qingdao City, Shandong Province Patentee before: CHINA ELECTRONIC TECHNOLOGY INSTRUMENTS Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |