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:
Apr. 22, 2008
Filed:
Jun. 07, 2004
Takashi Nakamaru, Fujisawa, JP;
Satoshi Takamura, Fujisawa, JP;
Kunio Nakashima, Tateyama-machi, JP;
Wataru Yago, Tateyama-machi, JP;
Kenichi Ichida, Tateyama-machi, JP;
Atsushi Yasukawa, Tateyama-machi, JP;
Shigeyuki Aburatani, Tateyama-machi, JP;
Takashi Nakamaru, Fujisawa, JP;
Satoshi Takamura, Fujisawa, JP;
Kunio Nakashima, Tateyama-machi, JP;
Wataru Yago, Tateyama-machi, JP;
Kenichi Ichida, Tateyama-machi, JP;
Atsushi Yasukawa, Tateyama-machi, JP;
Shigeyuki Aburatani, Tateyama-machi, JP;
Oiles Corporation, Tokyo, JP;
Chuetsu Metal Works Co., Ltd., Toyama, JP;
Abstract
A synchronizer ringhas an annular ring body; a friction materialjoined integrally to a cylindrical inner peripheral surfaceof the ring body; a conical surfaceformed on an inner surface of the friction material; and a plurality of annular groovesformed in the conical surfaceof the friction material