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:
Mar. 28, 1989
Filed:
May. 12, 1987
Applicant:
Inventors:
Ryuichi Terasaki, Kawasaki, JP;
Shinsei Sato, Yamato, JP;
Yoichi Ogata, Hiratsuka, JP;
Kazumi Nozawa, Machida, JP;
Yukihiko Nakajima, Omuta, JP;
Assignee:
Denki Kagaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; C01B / ; C01B / ;
U.S. Cl.
CPC ...
428408 ; 428212 ; 428220 ; 428335 ; 264 296 ; 264 60 ; 264 65 ; 4273761 ;
Abstract
A glassy carbon-coated article contains a graphite substrate and a glassy carbon coating applied on the graphite substrate. The coating has a thickness of 15 to 200 microns. The glassy carbon is obtained by heating a raw material containing a thermal decomposition product of an organic polymer and a heat resistant inorganic substance. The difference of thermal expansion coefficient between the glassy carbon and the graphite substrate is not higher than 1.5.times.10.sup.-6 /.degree.C.