Issued Patents All Time
Showing 51–64 of 64 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5710965 | Developer for developing electrostatic images and image forming method | Keita Nozawa, Tsutomu Kukimoto, Satoshi Matsunaga | 1998-01-20 |
| 5500046 | Toner for developing electrostatic images, image forming apparatus, apparatus unit and facsimile apparatus | Hirohide Tanikawa | 1996-03-19 |
| 5447813 | Toner for developing electrostatic image and image forming method | Toshiaki Nakahara, Minoru Shimojo, Masami Fujimoto, Kiyoshi Mizoe | 1995-09-05 |
| 5436701 | Image forming method, image forming apparatus and apparatus unit | Minoru Shimojo, Toshiaki Nakahara, Masami Fujimoto, Kiyoshi Mizoe | 1995-07-25 |
| 5406357 | Developer for developing electrostatic image, image forming method, image forming apparatus and apparatus unit | Toshiaki Nakahara, Minoru Shimojyo, Masami Fujimoto, Kiyoshi Mizoe | 1995-04-11 |
| 5389484 | Toner for developing electrostatic images, image forming apparatus, apparatus unit and facsimile apparatus | Hirohide Tanikawa | 1995-02-14 |
| 5356749 | Imaging method comprising a developer having a novel guanidine type compound | Katsuhiko Tanaka | 1994-10-18 |
| 5354637 | Magnetic toner | Masayoshi Shimamura, Toshiaki Nakahara, Kuniko Kobayashi, Yushi Mikuriya, Masami Fujimoto | 1994-10-11 |
| 5288579 | Developer for developing electrostatic image, image forming apparatus, apparatus unit and facsimile apparatus | Katsuhiko Tanaka, Tsuyoshi Takiguchi, Rika Doi | 1994-02-22 |
| 5268248 | Toner for developing electrostatic image and process for production thereof | Hirohide Tanikawa, Masaki Uchiyama, Yoshinobu Joh, Yasutaka Akashi, Masaaki Taya +1 more | 1993-12-07 |
| 5246810 | Guanidine type compound, toner for developing electrostatic images, developer for developing electrostatic images | Katsuhiko Tanaka | 1993-09-21 |
| 5214208 | Toner containing a dimer of diarylguanidine type compound for developing electrostatic image | Katsuhiko Tanaka | 1993-05-25 |
| 5121521 | Mechanism for opening and closing an openable apparatus | Katsumi Yawata, Tatsumi Shimanari | 1992-06-16 |
| 5084369 | Toner containing a dimer of diarylguanidine type compound for developing electrostatic image | Katsuhiko Tanaka | 1992-01-28 |