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. 16, 2013
Filed:
Feb. 05, 2004
Manabu Ono, Hitachi, JP;
Teruyuki Nagayoshi, Hitachi, JP;
Mitsuhiro Inoue, Tokyo, JP;
Takenori Abe, Hachioji, JP;
Manabu Ono, Hitachi, JP;
Teruyuki Nagayoshi, Hitachi, JP;
Mitsuhiro Inoue, Tokyo, JP;
Takenori Abe, Hachioji, JP;
Hitachi Chemical Co., Ltd., Tokyo, JP;
Japan Brake Industrial Co., Ltd., Tokyo, JP;
Abstract
The present invention is to provide a friction material composition comprising a fibrous material except for asbestos, an inorganic friction regulating agent, an organic friction regulating agent and a binder, wherein active alumina is contained as the inorganic friction regulating agent, and a fluorine series polymer is contained as the organic friction regulating agent, and to provide a friction material using the friction material composition.