Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6973334 | Cellular telephone | Makoto Katagishi | 2005-12-06 |
| 6917823 | Cellular telephone | Makoto Katagishi | 2005-07-12 |
| 6408193 | Cellular telephone | Makoto Katagishi | 2002-06-18 |
| 5054375 | Piston for internal combustion engine | Yasuhiro Kawabata, Soichi Hara, Hiroshi Kageyama | 1991-10-08 |
| 5052281 | Internal combustion engine piston with top-land circumferential projection arrangement | Yasuhiro Kawabata, Soichi Hara, Hiroshi Kageyama | 1991-10-01 |