Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6600525 | Electronic component having a liquid crystal display and holding a built-in battery | Daisuke Sawai, Tadahiko Ogawa, Moriaki Koyama, Tomonori Hishikawa, Takayuki Arai | 2003-07-29 |
| 6373686 | Key protection structure for an electronic apparatus | Tadahiko Ogawa, Hiroyuki Yamamoto, Kiyotaka Tomioka | 2002-04-16 |