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Title:
FILM, AND PISTON RING
Document Type and Number:
WIPO Patent Application WO/2022/131057
Kind Code:
A1
Abstract:
This film comprises Cr, Ti, Si, and N, wherein the Ti is contained in an amount of 0 at% to 25 at% (exclusive of 0 at%), and the film has a NaCl-type crystal structure. This piston ring comprises: a substrate; and said film provided to cover at least a portion of the surface of the substrate.

Inventors:
HONDA KEIJI (JP)
LIU HENGJUN (JP)
SAITO HIROKI (JP)
SHIMA YUJI (JP)
Application Number:
PCT/JP2021/044752
Publication Date:
June 23, 2022
Filing Date:
December 06, 2021
Export Citation:
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Assignee:
KK RIKEN (JP)
International Classes:
F02F5/00; C23C14/06; F16J9/26
Domestic Patent References:
WO2014088096A12014-06-12
Foreign References:
JP2008014228A2008-01-24
JP2002266697A2002-09-18
JP2003166046A2003-06-13
JP2019066024A2019-04-25
JP2011025405A2011-02-10
JP5372760B22013-12-18
JP2012097303A2012-05-24
JP2006249527A2006-09-21
JPH111763A1999-01-06
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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