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.)
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.)
N T T GIJUTSU ITEN KK
NTT Advanced Technology Corp
Ricoh Co Ltd
Original Assignee
N T T GIJUTSU ITEN KK
Ricoh Co Ltd
NTT Technology Transfer Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by N T T GIJUTSU ITEN KK, Ricoh Co Ltd, NTT Technology Transfer CorpfiledCriticalN T T GIJUTSU ITEN KK
Priority to JP21563286ApriorityCriticalpatent/JPS6297847A/ja
Publication of JPS6297847ApublicationCriticalpatent/JPS6297847A/ja
Publication of JPH0330500B2publicationCriticalpatent/JPH0330500B2/ja