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. 03, 1992
Filed:
Jul. 26, 1990
Applicant:
Inventors:
Seiichi Uemura, Ota, JP;
Yoshio Sohda, Machida, JP;
Yasuji Ido, Yokohama, JP;
Yukinori Kude, Yokohama, JP;
Takefumi Kohno, Yokohama, JP;
Toshio Hirai, Sendai, JP;
Makoto Sasaki, Sendai, JP;
Masayuki Niino, Sendai, JP;
Assignees:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23C / ; B05D / ;
U.S. Cl.
CPC ...
427249 ; 4272481 ; 4272557 ; 4274197 ; 4274191 ;
Abstract
A carbon material having oxidation resistance is prepared by forming a fi coating constituted mainly by carbon on the surface of a carbon/carbon composite by chemical vapor deposition, then forming on said first coating a second coating of a ceramic or both a ceramic and carbon by chemical vapor deposition, and changing at least one of thermal physical properties or mechanical physical properties of carbon in said first coating continuously or step-wise.