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.

Date of Patent:
Aug. 28, 2007

Filed:

Jan. 23, 2004
Applicants:

Takemori Takayama, Hirakata, JP;

Tetsuo Ohnishi, Yawata, JP;

Yoshikiyo Tanaka, Hirakata, JP;

Keiichi Maeda, Hirakata, JP;

Kan'ichi Sato, Hirakata, JP;

Inventors:

Takemori Takayama, Hirakata, JP;

Tetsuo Ohnishi, Yawata, JP;

Yoshikiyo Tanaka, Hirakata, JP;

Keiichi Maeda, Hirakata, JP;

Kan'ichi Sato, Hirakata, JP;

Assignee:

Komatsu Ltd, , JP;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 15/20 (2006.01); B32B 15/01 (2006.01); B32B 15/18 (2006.01); B22F 7/00 (2006.01); C22C 1/05 (2006.01);
U.S. Cl.
CPC ...
Abstract

With the objectives of alleviating the property of attacking on the mating member by scratching-off of local agglutinates on the sliding contact surface, achieving improved wear resistance, and achieving improved seizure resistance through restraint of frictional heat generation by a hard phase, a copper based sintered contact material contains shock-resistant ceramics in an amount of 0.05 to less than 0.5 wt % as non-metallic particles composed of one or more substances selected from pulverized oxides, carbides and nitrides. The shock-resistant ceramics are comprised of SiOand/or two or more substances selected from SiO, AlO, LiO, TiOand MgO.


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