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:
Jul. 07, 1992
Filed:
Jun. 18, 1990
Applicant:
Inventors:
Osamu Funayama, Iruma, JP;
Mikiro Arai, Iruma, JP;
Hiroyuki Aoki, Kamifukuoka, JP;
Yuuji Tashiro, Iruma, JP;
Toshio Katahata, Iruma, JP;
Kiyoshi Sato, Kamifukuoka, JP;
Takeshi Isoda, Niiza, JP;
Tadashi Suzuki, Iruma, JP;
Ichiro Kohshi, Kamifukuoka, JP;
Assignee:
Tonen Corporation, , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
501 97 ; 528-4 ; 528-7 ; 528-8 ;
Abstract
A shaped body is disclosed which comprises substantially amorphous, silicon nitride-based ceramic containing Si, N and B as essential components and O, C and H as optional components in amounts providing the following atomic ratios: