Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6024438 | Ink jet printer | Keiichi Koike, Keiki Yamada, Masaru Ohnishi | 2000-02-15 |
| 5533186 | Image filing method based on symbol retrieval condition | Mariko Tanahashi, Keiichi Koike | 1996-07-02 |
| 5350915 | Image sensor using organic photoconductor | Kei Ishihara, Kiyoshi Matsuda, Atsushi TAMAKI, Tadahiko Hamaguchi, Takashi Takeda | 1994-09-27 |
| 5237401 | Color image reading apparatus including color correction means | Keiichi Koike, Tsuneo Sato | 1993-08-17 |
| 5191409 | Color scanning system | Tadahiko Hamaguchi, Tsuneo Sato | 1993-03-02 |
| 4992860 | Color scanning system | Tadahiko Hamaguchi, Tsuneo Sato | 1991-02-12 |
| 4322057 | Electromagnetically operated valve unit | Minoru Yamanaka, Hideo Haneda, Mitsuyuki Suzuki | 1982-03-30 |