Electrostatic-erasing abrasion-proof coating
US5190824A · kind A · utility
38Cited by
8References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 26, 1991 |
| Grant date | Mar 2, 1993 |
| Priority date | — |
| Expiry date | Feb 26, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31935
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An abrasion-proof and static-erasing coating is formed on the contact surface of a contact image sensor. The coating comprises a first film having a high hardness and a low conductivity, a second film formed on the first film and having a low hardness and a high conductivity, and a third film having a high hardness and a high resistivity providing an abrasion-proof insulating external surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.