Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7737375 | Key sheet | Toshikazu Yoshioka, Tedi Kunthady | 2010-06-15 |
| 7262379 | Key sheets and method of producing the same | Takeshi Nishimura, Kengo Nishi | 2007-08-28 |
| 6607812 | Key sheet | Masayuki Kashino | 2003-08-19 |
| 6382855 | Key sheet and method for manufacturing the same | — | 2002-05-07 |
| 6180048 | Manufacturing method of color keypad for a contact of character illumination rubber switch | — | 2001-01-30 |