KR940006524B1 - 전파흡수재 - Google Patents
전파흡수재 Download PDFInfo
- Publication number
- KR940006524B1 KR940006524B1 KR1019920011382A KR920011382A KR940006524B1 KR 940006524 B1 KR940006524 B1 KR 940006524B1 KR 1019920011382 A KR1019920011382 A KR 1019920011382A KR 920011382 A KR920011382 A KR 920011382A KR 940006524 B1 KR940006524 B1 KR 940006524B1
- Authority
- KR
- South Korea
- Prior art keywords
- wave absorber
- radio wave
- ferrite
- recording medium
- magnetic recording
- Prior art date
Links
- 239000000463 material Substances 0.000 title claims description 3
- 238000010521 absorption reaction Methods 0.000 title description 2
- 239000006096 absorbing agent Substances 0.000 claims description 26
- 230000005291 magnetic effect Effects 0.000 claims description 16
- 229910000859 α-Fe Inorganic materials 0.000 claims description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- 239000002699 waste material Substances 0.000 claims description 11
- 239000011230 binding agent Substances 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 10
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 239000000696 magnetic material Substances 0.000 description 6
- 239000000843 powder Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 239000011147 inorganic material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- -1 Mg are mixed Chemical class 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/76—Prevention of microwave leakage, e.g. door sealings
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Aerials With Secondary Devices (AREA)
- Hard Magnetic Materials (AREA)
Abstract
Description
Claims (3)
- 페라이트 전파흡수재와 카본페라이트 전파흡수재의 조성에서 자성손실재와 결합재를 자기기록 매체의 폐기물을 사용함을 특징으로 한 전파흡수재.
- 제1항에 있어서 자기기록 매체의 폐기물에 카본을 첨가한 전파흡수재.
- 제1항에 있어서 자기기록 매체의 폐기물에 결합재를 첨가한 전파흡수재.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019920011382A KR940006524B1 (ko) | 1992-06-27 | 1992-06-27 | 전파흡수재 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019920011382A KR940006524B1 (ko) | 1992-06-27 | 1992-06-27 | 전파흡수재 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR940001762A KR940001762A (ko) | 1994-01-11 |
KR940006524B1 true KR940006524B1 (ko) | 1994-07-21 |
Family
ID=19335448
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019920011382A KR940006524B1 (ko) | 1992-06-27 | 1992-06-27 | 전파흡수재 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR940006524B1 (ko) |
-
1992
- 1992-06-27 KR KR1019920011382A patent/KR940006524B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR940001762A (ko) | 1994-01-11 |
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Legal Events
Date | Code | Title | Description |
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A201 | Request for examination | ||
PA0109 | Patent application |
Patent event code: PA01091R01D Comment text: Patent Application Patent event date: 19920627 |
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PA0201 | Request for examination |
Patent event code: PA02012R01D Patent event date: 19920627 Comment text: Request for Examination of Application |
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PG1501 | Laying open of application | ||
G160 | Decision to publish patent application | ||
PG1605 | Publication of application before grant of patent |
Comment text: Decision on Publication of Application Patent event code: PG16051S01I Patent event date: 19940628 |
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E701 | Decision to grant or registration of patent right | ||
PE0701 | Decision of registration |
Patent event code: PE07011S01D Comment text: Decision to Grant Registration Patent event date: 19941020 |
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GRNT | Written decision to grant | ||
PR0701 | Registration of establishment |
Comment text: Registration of Establishment Patent event date: 19941215 Patent event code: PR07011E01D |
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PR1002 | Payment of registration fee |
Payment date: 19941215 End annual number: 3 Start annual number: 1 |
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FPAY | Annual fee payment |
Payment date: 19971216 Year of fee payment: 6 |
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PR1001 | Payment of annual fee |
Payment date: 19971216 Start annual number: 4 End annual number: 6 |
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LAPS | Lapse due to unpaid annual fee | ||
PC1903 | Unpaid annual fee |