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:
Oct. 28, 1980
Filed:
Jul. 13, 1978
Applicant:
Inventors:
Assignee:
Tokyo Shibaura Denki Kabushiki Kaisha, Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
C04B / ; C04B / ; C09K / ;
U.S. Cl.
CPC ...
106 1405 ; 106 734 ; 106 735 ; 1062865 ; 1062868 ;
Abstract
An article has a portion contacted by gallium phosphide or gallium arsenide. At least the contacting portion is formed of a sintered body of a mixture of silicon nitride and an additive, and part or the whole of the additive is present as a crystallized phase in the sintered silicon nitride system.
Nakamura, Kiyoshi. (1980). Article highly resistant to corrosion by gallium phosphide and gallium (U.S. Patent No. 4230494). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4230494
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile