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. 16, 1996
Filed:
Aug. 11, 1994
Shoichi Kume, Aichi, JP;
Haruo Yoshida, Ibaraki, JP;
Yukiyoshi Yamada, Saitama, JP;
Tadashi Fuyuki, Saitama, JP;
Satoshi Akiyama, Saitama, JP;
Yoshiaki Hamada, Saitma, JP;
Eisuke Kuroda, Saitama, JP;
Tadakatsu Nabeya, Kanagawa, JP;
Yukio Sumita, Miyagi, JP;
Kenichi Kimura, Miyagi, JP;
Agency of Industrial Science & Technology, Tokyo, JP;
Nisshin Flour Milling Co., Ltd., Tokyo, JP;
Reed Co., Ltd, Kanagawa-ken, JP;
Abstract
A powder of diamond or high-pressure phase boron nitride core particles charged into a coating space as it is dispersed, and a precursor of a coat forming substance allowed to contact and/or impinge against the particles in the powder of core particles so that their surfaces are covered with the coat forming substance, thereby preparing coated diamond or high-pressure phase boron nitride particles which are subsequently sintered. The thusly produced diamond of high-pressure phase boron nitride sinter is composed of coated core particles of high performance that are superhard, uniform, dense and sintered firmly, and which have a controlled microstructure.