Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5665485 | Splashproof construction for portable type electronic device | Tatsuo Kuwayama, Tatsuya OKAWA, Takeshi Sato, Ryuichi Takahashi | 1997-09-09 |
| D305233 | Radio pager | — | 1989-12-26 |
| D304191 | Radio paging receiver | — | 1989-10-24 |