Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5057387 | Lithium cells | Yoshitomo Masuda, Masao Ogawa, Katsuhiko Arai, Kinya Suzuki, Tadashi Fuse | 1991-10-15 |
| 4960657 | Lithium cells | Yoshitomo Masuda, Masao Ogawa, Katsuhiko Arai, Kinya Suzuki, Tadashi Fuse | 1990-10-02 |
| 4939050 | Electric cells | Shinichi Toyosawa, Isamu Shinoda, Katsuhiko Arai, Toyoo Harada, Yuko Maeda +7 more | 1990-07-03 |