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:
Jun. 01, 1982
Filed:
Aug. 25, 1980
Applicant:
Inventors:
Katsutoshi Nishida, Yokohamashi, JP;
Toshihiko Ochiai, Yokosukashi, JP;
Assignee:
Tokyo Shibaura Denki Kabushiki Kaisha, Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
C04B / ; C04B / ; C04B / ;
U.S. Cl.
CPC ...
501 97 ; 501 87 ; 501 92 ;
Abstract
A silicon nitride based sintered product produced by sintering a powder mixture consisting essentially of silicon nitride, at least one oxide of yttrium, scandium, cerium, lanthanum and the metals of lanthanide series and at least one metal or metal oxide of iron, nickel and cobalt.