Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873167 | Self cleaning sheet for dissolving a photo-sensitive material containing microcapsules on both sides of substrate | — | 1989-10-10 |
| 4864356 | Exposure device for image recording apparatus | Masashi Ueda, Shunichi Higashiyama, Kiyoharu Hayakawa, Yumio Matsumoto, Akira Sago +3 more | 1989-09-05 |
| 4810614 | Method of recording information on photosensitive and pressure-sensitive sheet utilizing mask original form | Kazuo Sangyoji, Takemi Yamamoto, Tsugio Okamoto, Naoyuki Hatta, Kenji Sakakibara +4 more | 1989-03-07 |
| 4806984 | Color-tone controlling method and apparatus therefor | — | 1989-02-21 |