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
CA803639A
Inventor
Yamashita Katsuyuki
Iwata Koshi
Moriguchi Eijiro
Iga Atsushi
Kamiya Shigeru
Akutsu Hidezo
Mizuno Hideo
Tawara Yoshio
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
Matsushita Electronics Corp
Publication date
Application grantedgrantedCritical
Publication of CA803639ApublicationCriticalpatent/CA803639A/en