Invention Grant
- Patent Title: Covering member and method for manufacturing the same
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Application No.: US16971688Application Date: 2019-02-15
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Publication No.: US11976350B2Publication Date: 2024-05-07
- Inventor: Shuho Koseki , Daiki Shinno
- Applicant: Proterial, Ltd.
- Applicant Address: JP Tokyo
- Assignee: Proterial, Ltd.
- Current Assignee: Proterial, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: JCIPRNET
- Priority: JP 18032834 2018.02.27
- International Application: PCT/JP2019/005573 2019.02.15
- International Announcement: WO2019/167674A 2019.09.06
- Date entered country: 2020-08-21
- Main IPC: C23C14/06
- IPC: C23C14/06 ; C23C14/58

Abstract:
A covering member has a hard film on the surface of a base material, wherein the hard film comprises a layer A selected from a nitride, a carbonitride, an oxynitride, and an oxycarbonitride of Cr or CrM; a metal layer which is formed on the outer surface side of the A layer and includes Cr, Ti, or W; and a layer B which is formed on the outer surface side of the metal layer and selected from a nitride, a carbonitride, an oxynitride, and an oxycarbonitride of Cr or CrM, and wherein M is one or two or more from a Group 4 metal, a Group 5 metal, a Group 6 metal of the periodic table, Al, Si, and B, and strain is introduced in the outer surface side of the metal layer.
Information query
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