Personal computer keyboard
US6239390A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 3, 2000 |
| Grant date | May 29, 2001 |
| Priority date | — |
| Expiry date | Mar 3, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2231/042
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided is a personal computer keyboard in which base and reinforcement plates excellent in heat dissipativity and homogeneous in heat dissipation, and with a mechanical strength are incorporated. The keyboard includes a base plate 24 on which key caps K1 to K9 are mounted; and a reinforcement plate 25 disposed on the lower side of the base plate 24, wherein the base plate 24 is constituted of an Al--Mg--Si based alloy plate including 0.2 to 0.8 wt % of Si, 0.3 to 0.9 wt % of Mg, 0.35 wt % or less of Fe and 0.20 wt % or less of Cu with the rest of Al and inevitable impurities and wherein the reinforcement plate 25 is constituted of a heat pipe panel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.