Issued Patents All Time
Showing 26–38 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4908652 | Image recording apparatus having upper and lower sections separable from each other at medium exposing path | Kiyoharu Hayakawa, Masashi Ueda, Akira Sago, Osamu Takagi | 1990-03-13 |
| 4905036 | Image forming process and system, including heating step or device for increased density of images | Yuji Asano, Jun Sakai, Osamu Takagi, Akira Sago, Kiyoharu Hayakawa +3 more | 1990-02-27 |
| 4901103 | Image recording apparatus using pressure sensitive sheet | Kiyoharu Hayakawa, Masashi Ueda, Akira Sago, Osamu Tagaki | 1990-02-13 |
| 4897334 | Photo-sensitive recording medium having light-shielding means on opposite side edges of the film | — | 1990-01-30 |
| 4894680 | Image recording apparatus | Kiyoharu Hayakawa, Masashi Ueda, Akira Sago, Osamu Takagi | 1990-01-16 |
| 4884098 | Image recording apparatus | — | 1989-11-28 |
| 4878084 | Method and device for feeding sheet in image recording apparatus | Kiyoharu Hayakawa, Masashi Ueda, Akira Sago, Osamu Tagaki | 1989-10-31 |
| 4870444 | Copying apparatus | Takemi Yamamoto, Ryohei Komiya, Naoyuki Hatta, Fumihiro Sunda | 1989-09-26 |
| 4870451 | Image recording apparatus | Kiyoharu Hayakawa, Masashi Ueda, Akira Sago, Osamu Takagi | 1989-09-26 |
| 4866473 | Thermal fixing device for use in recording apparatus | Kiyoharu Hayakawa, Masashi Ueda, Akira Sago, Osamu Takagi | 1989-09-12 |
| 4864356 | Exposure device for image recording apparatus | Yuji Asano, Masashi Ueda, Shunichi Higashiyama, Kiyoharu Hayakawa, Akira Sago +3 more | 1989-09-05 |
| 4851881 | Optical printing system | Takemi Yamamoto, Koji Kobayakawa, Ichiro Sasaki, Ryohei Komiya, Akira Sago +2 more | 1989-07-25 |
| 4810614 | Method of recording information on photosensitive and pressure-sensitive sheet utilizing mask original form | Kazuo Sangyoji, Takemi Yamamoto, Tsugio Okamoto, Naoyuki Hatta, Yuji Asano +4 more | 1989-03-07 |