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.)
Koyo Corp
Original Assignee
Koyo 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 Koyo CorpfiledCriticalKoyo Corp
Priority to JP59128237ApriorityCriticalpatent/JPS616301A/ja
Publication of JPS616301ApublicationCriticalpatent/JPS616301A/ja
Publication of JPH0130922B2publicationCriticalpatent/JPH0130922B2/ja