Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5195511 | Bubble massager | Kozo Tamura, Tomotaka Honda, Toshihiro Takahashi, Masaki Kaji, Shoichi Ito | 1993-03-23 |
| 5006780 | Charging circuit | Kozo Tamura, Syoichi Nihira, Yasuhiro Tsukamoto, Akira Iida | 1991-04-09 |