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
CA890646A
Inventor
Washizuka Isamu
Hanahara Hitoshi
Teramura Satoshi
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.)
Sharp Corp
Original Assignee
Sharp Corp
Publication date
Application grantedgrantedCritical
Publication of CA890646ApublicationCriticalpatent/CA890646A/en