Illumination key and method of manufacture
US6677545B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 14, 2001 |
| Grant date | Jan 13, 2004 |
| Priority date | — |
| Expiry date | Nov 3, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2227/002
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides an illumination key and a method of making such illumination key, in which the upper surface of the key top is curved and slanted at an angle to make it possible to reliably recognize the pattern (such as a letter or the like) printed thereon, the key operating portion is provided with a rubber-like click sensitivity and elasticity while the key top portion is made of a hard resin, with the key operating portion and the key to being reliably bonded to each other, and in which a pattern such as a letter or the like can be simply created without the need for laser etching, and wherein it is possible to reliably carry out ON/OFF operations of a one key top without operating neighboring key tops.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.