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:
Sep. 03, 1991
Filed:
Mar. 29, 1989
Applicant:
Inventors:
Seiichi Uemura, Tokyo, JP;
Yoshio Sohda, Kanagawa, JP;
Yasuji Ido, Kanagawa, JP;
Toshio Hirai, Sendai-shi, Miyagi-ken, JP;
Makoto Sasaki, Sendai-shi, Miyagi-ken, JP;
Masayuki Niino, Miyagi, JP;
Assignees:
Nippon Oil Company, Limited, Tokyo, JP;
Other;
Japan as represented by the Director-General National, Aerospace, , US;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23C / ;
U.S. Cl.
CPC ...
427249 ; 4272552 ; 4272557 ; 4272481 ; 427113 ;
Abstract
A carbon/carbon composite having oxidation resistance is produced by filling the voids of a carbon/carbon composite comprising 10-70% by volume of carbon fibers and 5-90% by volume of a carbonaceous matrix and having a void percentage of 10-55%, with at least one of carbon and a ceramic by chemical vapor infiltration and then coating the deposit surface with a ceramic or both ceramic and carbon by chemical vapor deposition.