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:
Nov. 09, 2021
Filed:
Oct. 09, 2018
Applicant:
Kabushiki Kaisha Riken, Tokyo, JP;
Inventors:
Kazuya Kameda, Tokyo, JP;
Yuuichi Ishida, Tokyo, JP;
Hiroshi Maruyama, Tokyo, JP;
Takuma Sekiya, Tokyo, JP;
Assignee:
KABUSHIKI KAISHA RIKEN, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J 9/26 (2006.01); C23C 14/06 (2006.01); C23C 14/32 (2006.01); C23C 28/04 (2006.01);
U.S. Cl.
CPC ...
F16J 9/26 (2013.01); C23C 14/0605 (2013.01); C23C 14/325 (2013.01); C23C 28/044 (2013.01);
Abstract
A sliding member having a hard carbon coating that has a thickness of 3 μm or more and demonstrates high peeling resistance and high wear resistance is provided. A sliding memberaccording to the present disclosure includes a base memberand a hard carbon coatingthat is formed on the base memberand has the hydrogen content of 3 atomic % or less and a thickness of 3 μm or more. When HM represents a Martens hardness of the hard carbon coatingand HIT represents an indentation hardness, the ratio HM/HIT is 0.40 or more.