Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6853974 | Workflow system, workflow control method and storage medium | Shunsuke Akifuji, Toshiaki Sakaguchi, Yoko Seki, Masato Tamaki, Atsushi Aoki +2 more | 2005-02-08 |
| 5614787 | Metal halide lamp having heat dam portion | Kouji Kawai, Naoki Masuda, Hirohisa Ota, Osamu Yogi | 1997-03-25 |
| 5525856 | Light irradiation device | Kouji Kawai | 1996-06-11 |
| 5359255 | Discharge tube having a double-tube type structure | Koji Kawai, Naoki Masuda | 1994-10-25 |