Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5332639 | Toner for use in electrophotography and its manufacturing process comprising a charge control additive of an oxide coated with a mixture of tin oxide and antimony | Tadashi Nakamura | 1994-07-26 |
| 5237522 | Photosensitive sheet remaining amount detection device for image forming apparatus | — | 1993-08-17 |
| 5077574 | Image forming apparatus | Akira Tamagaki | 1991-12-31 |
| 5070360 | Copying machine with a slidefilm exposure device | Akira Tamagaki | 1991-12-03 |
| 5003344 | Projection unit for a light permeable original in a copying machine | Yoshiaki Ibuchi, Mitsuru Ogura, Akira Tamagaki | 1991-03-26 |
| 4994851 | Photosensitive sheet rewind device for image forming apparatus | — | 1991-02-19 |
| 4989038 | Image forming apparatus utilizing a light image memory | Toshiaki Kobayashi | 1991-01-29 |
| 4957243 | Shredder | Toshikuni Kanagaki, Minoru Hashimoto, Masaru Nishijima | 1990-09-18 |
| 4939535 | Method of controlling transport of photoreceptive sheet | Osamu Hashimoto, Kunio Ohashi | 1990-07-03 |
| 4918537 | Image forming apparatus | Hiroshi Mori, Toshiaki Kobayashi, Mitsuru Ogura | 1990-04-17 |
| 4914479 | Image formation apparatus with cartridge for roll of photosensitive sheet | Mitsuru Ogura | 1990-04-03 |
| 4912510 | Image forming apparatus with detachable cartridge | Mitsuru Ogura | 1990-03-27 |
| 4907030 | Image formation apparatus with a cartridge for a roll of photosensitive sheet | Mitsuru Ogura | 1990-03-06 |
| 4842205 | Shredding machine | Yasuo Araki, Tetsuya Itoh, Yoshihalu Fujii | 1989-06-27 |
| 4817877 | Shredding machine | Tetsuya Itoh, Shizuo Yoshikawa | 1989-04-04 |
| 4815670 | Shredder | — | 1989-03-28 |