Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7832286 | Torque wrench | Shogo Nakata, Masahiko Umekawa, Tadashi Hanai, Kouji Fujita | 2010-11-16 |
| 6704495 | Audio-video device reproducing apparatus | Takaaki Kumazawa, Genichi Yamada, Ko Hamano, Tadashi Maeoka, Yoshihiro Fujimoto | 2004-03-09 |
| D261882 | Record player | Shuichi Obata | 1981-11-17 |