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:
Aug. 27, 2013
Filed:
Feb. 03, 2009
Makoto Kano, Ebina, JP;
Takahiro Horiuchi, Ebina, JP;
Shinichi Takagi, Ebina, JP;
Masao Kumagai, Ebina, JP;
Eiji Shimodaira, Sagamihara, JP;
Yoshio Miyasaka, Nagoya, JP;
Makoto Kano, Ebina, JP;
Takahiro Horiuchi, Ebina, JP;
Shinichi Takagi, Ebina, JP;
Masao Kumagai, Ebina, JP;
Eiji Shimodaira, Sagamihara, JP;
Yoshio Miyasaka, Nagoya, JP;
FujiWPC Co., Ltd., Kanagawa, JP;
Fuji Kihan Co., Ltd., Aichi, JP;
Abstract
A sliding member is produced by forming hardening layers with two-layered structure on surface of a substrate metal with a Vickers hardness of not more than Hv300, such as aluminum or magnesium alloy for example, and then forming a DLC film having surface roughness defined as maximum height roughness Rz of 1 to 10 μm further on the hardening layers. The above-described hardening layers are composed of a first hardening layer dispersed with heavy metal particles, preferably made of tungsten and/or tantalum in the substrate metal, and a second hardening layer formed under the first hardening layer.