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.)
Coorstek KK
Original Assignee
Toshiba Ceramics Co Ltd
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 Toshiba Ceramics Co LtdfiledCriticalToshiba Ceramics Co Ltd
Priority to JP59205496ApriorityCriticalpatent/JPS6183670A/ja
Priority to DE19853532228prioritypatent/DE3532228A1/de
Priority to FR858513481Aprioritypatent/FR2571043B1/fr
Priority to KR1019850007199Aprioritypatent/KR900000139B1/ko
Publication of JPS6183670ApublicationCriticalpatent/JPS6183670A/ja
Priority to US06/946,648prioritypatent/US4780434A/en
Publication of JPH059385B2publicationCriticalpatent/JPH059385B2/ja