Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5334463 | Hybrid fuel battery system and the operation method thereof | Osamu Tajima, Shingo Sumi, Satoshi Yamamoto, Fumiiki Yoneda | 1994-08-02 |
| 5319619 | Photomagnetic eraser | Yoshio Fujii | 1994-06-07 |