Sliding member, inner and outer blades of an electric shaver and film-forming method
US6354008B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 1998 |
| Grant date | Mar 12, 2002 |
| Priority date | — |
| Expiry date | Sep 21, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C16/505
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A sliding member having a sliding surface for sliding contact with a cooperative member is disclosed. A protective film is deposited not only on the sliding surface but also a surface region immediately adjacent the sliding surface such that a ratio d1/d2 is controlled to be 1 or greater, where d1 is a thickness of the protective film on the sliding surface and d2 is a thickness of the protective film on the surface region immediately adjacent the sliding surface. Alternatively, the protective film is deposited at least on the sliding surface such that the protective film is varied in thickness to define an irregular top surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.