Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5602493 | Bias circuit for an input terminal | Mitsuo Kusakabe | 1997-02-11 |
| 5565586 | Oxidative process for the preparation of allyl quinone derivatives | Kimio Hamamura, Chiaki Seki | 1996-10-15 |
| 5476955 | Process for the preparation of a quinone derivative | Kimio Hamamura, Tetsuo Iwama, Chiaki Seki | 1995-12-19 |
| 5412124 | Preparation process of naphthoquinone derivative and intermediate for the preparation thereof | Kimio Hamamura, Chiaki Seki | 1995-05-02 |
| 4884254 | Time display device | Shoichi Kawai, Chieji Katoh | 1989-11-28 |