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.)
Riso Kagaku Corp
Original Assignee
Riso Kagaku 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 Riso Kagaku CorpfiledCriticalRiso Kagaku Corp
Priority to JP1987022688UpriorityCriticalpatent/JPH0621733Y2/ja
Priority to US07/158,175prioritypatent/US4896597A/en
Publication of JPS63130260UpublicationCriticalpatent/JPS63130260U/ja
Application grantedgrantedCritical
Publication of JPH0621733Y2publicationCriticalpatent/JPH0621733Y2/ja