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:
Dec. 08, 1981
Filed:
Nov. 05, 1979
Applicant:
Inventors:
Yoshinori Hattori, Nagoya, JP;
Masayuki Akatsuka, Nagoya, JP;
Yasushi Matsuo, Nagoya, JP;
Isamu Fukuura, Nagoya, JP;
Assignee:
NGK Spark Plug Co., Ltd., Aichi, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B24D / ; C04B / ;
U.S. Cl.
CPC ...
51309 ; 51307 ; 51308 ; 264 85 ; 501 97 ; 501104 ;
Abstract
A silicon nitride based ceramic tool is disclosed which is prepared from the starting powder compositions surrounded by and including the lines defined by the points A, B, and C and preferably D, E, and F in the FIGURE.
Hattori, Yoshinori. (1981). Silicon nitride ceramic tools and a process for their production (U.S. Patent No. 4304576). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4304576
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile