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.)
Expired
Application number
CA903422A
Inventor
Okubo Kei
Nakai Miyoji
Horiguchi Toru
Shimada Haruhisa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Haruhisa Shimada
Miyoji Nakai
Toru Horiguchi
Matsushita Electric Industrial Co Ltd
KEI OKUBO
Publication date
Application grantedgrantedCritical
Publication of CA903422ApublicationCriticalpatent/CA903422A/en