Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D388431 | Portable wireless telephone | Tetsufumi Takayasu, Takao Kumakoshi, Hiroshi Fujiwara | 1997-12-30 |
| 5665485 | Splashproof construction for portable type electronic device | Isamu Sekine, Tatsuya OKAWA, Takeshi Sato, Ryuichi Takahashi | 1997-09-09 |
| D380750 | Portable wireless telephone | Takeshi Sato, Akira Teto, Osamu Utsunomiya | 1997-07-08 |