Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D402957 | Battery charger for portable wireless phone | Tetsufumi Takayasu, Hiroshi Fujiwara | 1998-12-22 |
| D392646 | Holder for portable wireless car telephone | Tetsufumi Takayasu, Hiroshi Fujiwara | 1998-03-24 |
| 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 |