Issued Patents All Time
Showing 51–56 of 56 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4920374 | Picture recording apparatus | Kazuo Sangyoji, Takemi Yamamoto, Tsugio Okamoto, Naoyuki Hatta, Kenji Sakakibara +4 more | 1990-04-24 |
| 4905036 | Image forming process and system, including heating step or device for increased density of images | Jun Sakai, Yumio Matsumoto, Osamu Takagi, Akira Sago, Kiyoharu Hayakawa +3 more | 1990-02-27 |
| 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 |