Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5841517 | Printer system for printing combined images on a same photosensitive sheet | — | 1998-11-24 |
| 5796907 | Optical transmission line optical transmitter, and photographic printing apparatus | Teruo Shiba, Michio Oishi, Masazumi Ishikawa | 1998-08-18 |
| 5745216 | Exposure apparatus capable of shifting and removing a plurality of filters from a light path | Masazumi Ishikawa | 1998-04-28 |
| 5721609 | Exposure apparatus with a PLZT shutter which received light from a projecting means capable of sequentially generating red, blue and green light | Masazumi Ishikawa | 1998-02-24 |
| 5719660 | Exposure apparatus having a PLZT shutter, a multi-colored filter disc and a shielding member to block exposure light | Masazumi Ishikawa | 1998-02-17 |
| 5706075 | Exposure apparatus for controlling the duration of exposure operations according to compensated exposure data | Masazumi Ishikawa, Yasutaka Kayama | 1998-01-06 |
| 5682254 | Image combining printer | — | 1997-10-28 |
| 5680199 | Photographic printing apparatus having temperature controlled PLZT exposure head | Masazumi Ishikawa | 1997-10-21 |
| 5661544 | Exposure correcting method for a photographic printer and photographic printing apparatus | Masazumi Ishikawa | 1997-08-26 |
| 5563984 | Method and apparatus for printing images | — | 1996-10-08 |
| 5438388 | Photographic processing apparatus | Keigo Arimoto | 1995-08-01 |
| 5430523 | Image printer | — | 1995-07-04 |
| 5428422 | Image printer | — | 1995-06-27 |
| 5390000 | Exposure apparatus including PLZT optical shutter | — | 1995-02-14 |
| 5337117 | Image combining printer | — | 1994-08-09 |
| 5337119 | Image combining printer | — | 1994-08-09 |