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
CA611432A
Inventor
Hoshino Yasushi
Sato Minoru
Namikawa Mamoru
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.)
TDK Corp
Original Assignee
TDK Corp
Publication date
Application grantedgrantedCritical
Publication of CA611432ApublicationCriticalpatent/CA611432A/en