Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8025435 | Light guide sheet and movable contact element using the same | Yousuke Chikahisa, Tsutomu Aisaka, Koji Tanabe | 2011-09-27 |
| 7946720 | Light guide sheet, movable contact structure using the light guide sheet, method of manufacturing the movable contact structure, and switch using the light guide sheet and the movable contact structure | Tsutomu Aisaka, Naoki Sera, Yousuke Chikahisa | 2011-05-24 |