The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 04, 1992
Filed:
Apr. 23, 1990
Applicant:
Inventors:
Akira Kinumura, Nara, JP;
Katsuhiko Koretomo, Takatsuki, JP;
Shuichi Yura, Nakama, JP;
Tatsuhiko Kuwano, Osaka, JP;
Tsuguji Kimura, Soka, JP;
Assignees:
Sekisui Kagaku Kogyo Kabushiki Kaisha, Osaka, JP;
Okabe Mica Co., Ltd., Fukuoka, JP;
Fuji Spinning Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B24B / ;
U.S. Cl.
CPC ...
511311 ; 51129 ; 51133 ;
Abstract
A carrier for supporting workpieces to be polished is composed of an integrated mica laminated sheet. The mica laminated sheet is impregnated with a thermo-setting resin. The carrier has a low warp ratio and can be made thin with a sufficient mechanical strength and accuracy of thickness.