Invention Grant
- Patent Title: Sliding member and piston ring
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Application No.: US16497802Application Date: 2018-01-22
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Publication No.: US10883601B2Publication Date: 2021-01-05
- Inventor: Xingrui Deng
- Applicant: KABUSHIKI KAISHA RIKEN
- Applicant Address: JP Tokyo
- Assignee: KABUSHIKI KAISHA RIKEN
- Current Assignee: KABUSHIKI KAISHA RIKEN
- Current Assignee Address: JP Tokyo
- Agency: SOEI Patent & Law Firm
- Priority: JP2017-070934 20170331
- International Application: PCT/JP2018/001769 WO 20180122
- International Announcement: WO2018/179709 WO 20181004
- Main IPC: F16J9/26
- IPC: F16J9/26 ; C23C14/06 ; C23C14/02

Abstract:
A sliding member includes a base material, and an amorphous hard carbon film formed on a surface of the base material, in which a sp2 ratio of the amorphous hard carbon film increases from an inner surface side corresponding to the base material side toward an outer surface side thereof to become a maximum value and further decreases toward the outer surface side.
Public/Granted literature
- US20200292076A1 SLIDE MEMBER AND PISTON RING Public/Granted day:2020-09-17
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