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. 16, 2025
Filed:
Mar. 16, 2020
Applicant:
Akebono Brake Industry Co., Ltd., Tokyo, JP;
Inventors:
Yuta Watanabe, Tokyo, JP;
Motoyuki Miyaji, Tokyo, JP;
Hiroshi Yamamoto, Tokyo, JP;
Takuya Takada, Tokyo, JP;
Assignee:
AKEBONO BRAKE INDUSTRY CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D 69/02 (2006.01);
U.S. Cl.
CPC ...
F16D 69/026 (2013.01); F16D 2200/0065 (2013.01);
Abstract
A friction material includes a friction modifier, a binder, and a fibrous material. An alkali metal salt of phosphoric acid and a metal sulfide are contained as the friction modifier. The alkali metal salt of phosphoric acid may include trisodium phosphate. A wax containing, as a main component, an ester of a higher fatty acid and a higher alcohol may be contained as the friction modifier.