Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D380750 | Portable wireless telephone | Takeshi Sato, Akira Teto, Tatsuo Kuwayama | 1997-07-08 |
| D310366 | Portable radio telephone | Kazuo Akaike, Masahiko Kobayashi, Ryuichi Takahashi, Tetsufumi Takayasu | 1990-09-04 |