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:
Feb. 13, 1990
Filed:
Jul. 03, 1986
Applicant:
Inventors:
Toshitsugu Matsuda, Yokohama, JP;
Hiroyuki Nakae, Kawasaki, JP;
Toshio Hirai, Izumi-shi, Miyagi 981-31, JP;
Assignees:
Research Development Corporation of Japan, Tokyo, JP;
Japan Metals & Chemicals Co., Ltd., Tokyo, JP;
The Furukawa Electric Company, Ltd., Tokyo, JP;
Other;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
423290 ; 148D / ; 156D / ; 20415741 ; 20415743 ; 20415745 ; 4272552 ; 501 96 ;
Matsuda, Toshitsugu. (1990). Polycrystalline rhombohedral boron nitride and method of producing the (U.S. Patent No. 4900526). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4900526
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile