Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5673115 | Image recording method and device with memory printing of plural recording media on a recording drum | — | 1997-09-30 |
| 5650863 | Image reading and copying using plural illumination sources having different characteristics | Tsutomu Utagawa, Kazuo Yoshinaga, Toshio Hayashi, Takehiko Nakai, Tetsuya Nagase +1 more | 1997-07-22 |
| 5631723 | Image processing apparatus for determining whether an image contains a particular pattern using invisible light | Katsuichi Shimizu, Yutaka Komiya, Kazuo Yoshinaga, Toshio Hayashi, Takehiko Nakai +3 more | 1997-05-20 |
| 5617187 | Image reading apparatus, copying apparatus, image processing apparatus, and image processing method | Toshio Hayashi, Kazuo Yoshinaga, Takehiko Nakai, Tsutomu Utagawa, Tetsuya Nagase +1 more | 1997-04-01 |