Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7902470 | Decorative key sheet for pushbutton switches | — | 2011-03-08 |
| 7598466 | Key sheet | Shinya Tateda | 2009-10-06 |
| 7465889 | Pushbutton switch cover sheet and method of manufacturing the same | Daisuke Nakajima | 2008-12-16 |
| 7034235 | Key sheet | — | 2006-04-25 |