Key sheet
US7034235B2 · kind B2 · utility
13Cited by
7References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 13, 2004 |
| Grant date | Apr 25, 2006 |
| Priority date | — |
| Expiry date | Dec 13, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2239/008
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A key sheet includes a base sheet and a plurality of key tops arranged on the base sheet. The base sheet includes an elastic member formed of a rubber-like elastic body and a light-reflective reinforcing member. The light-reflective reinforcing member having at least one surface constitutes the metal-containing face.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.