Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7745089 | Process for producing toner, and toner | Tsutomu Onuma, Shuhei Moribe, Shinichiro Abe, Koji Nishikawa | 2010-06-29 |
| 7351509 | Toner | Shuhei Moribe, Tsutomu Onuma, Shinichiro Abe, Koji Nishikawa | 2008-04-01 |
| 7327881 | Image reading apparatus | — | 2008-02-05 |
| 7306889 | Process for producing toner, and toner | Tsutomu Onuma, Shuhei Moribe, Shinichiro Abe, Koji Nishikawa | 2007-12-11 |
| 7288354 | Toner | Shuhei Moribe, Tsutomu Onuma, Hideto Iida, Koji Nishikawa, Takashige Kasuya | 2007-10-30 |
| 7273686 | Toner | Tsutomu Onuma, Hideto Iida, Takashige Kasuya, Koji Nishikawa, Shuhei Moribe | 2007-09-25 |
| 7184589 | Image compression apparatus | — | 2007-02-27 |
| 6810217 | Process cartridge | Kaori Hiratsuka, Hirohide Tanikawa, Tsutomu Onuma | 2004-10-26 |
| 6673506 | Toner production process | Tsuneo Nakanishi, Hirohide Tanikawa, Tsutomu Onuma, Kaori Hiratsuka | 2004-01-06 |
| 6630275 | Magnetic toner and process cartridge | Kaori Hiratsuka, Hirohide Tanikawa, Tsutomu Onuma, Tsuneo Nakanishi | 2003-10-07 |
| 6589701 | Dry toner, image forming method and process cartridge | Katsuhisa Yamazaki, Tsutomu Onuma, Tsuneo Nakanishi, Kaori Hiratsuka | 2003-07-08 |
| 6458499 | Toner having hydrocarbon wax with specific ester value and hydroxyl value | Tsutomu Onuma, Hirohide Tanikawa, Tsuneo Nakanishi, Katsuhisa Yamazaki, Kaori Hiratsuka | 2002-10-01 |
| 6426169 | Toner containing azo iron compound | Tsutomu Onuma, Hirohide Tanikawa, Yoshihiro Ogawa, Tsuneo Nakanishi, Katsuhisa Yamazaki +1 more | 2002-07-30 |
| 6365314 | Toner for developing electrostatic image, image forming method and process cartridge | Koichi Tomiyama, Takaaki Kohtaki, Manabu Ohno, Makoto Unno, Yushi Mikuriya +2 more | 2002-04-02 |
| 6090515 | Toner for developing electrostatic image, image forming method and process cartridge | Koichi Tomiyama, Takaaki Kohtaki, Manabu Ohno, Makoto Unno, Yushi Mikuriya +2 more | 2000-07-18 |
| 6007957 | Magnetic toner, image forming method and process cartridge | Takakuni Kobori, Tsutomu Onuma, Masaichiro Katada, Masao Takano | 1999-12-28 |
| 5962176 | Toner for developing electrostatic image, image forming method and process-cartridge | Manabu Ohno, Yukari Ishibashi, Shunji Suzuki | 1999-10-05 |
| 5942366 | Image forming method employing toner containing higher and lower molecular weight polymer components | Manabu Ohno, Hiroyuki Suematsu, Akihiko Nakazawa, Shunji Suzuki | 1999-08-24 |
| 5858593 | Magnetic toner, apparatus unit and image forming method | Osamu Tamura, Koichi Tomiyama, Shunji Suzuki, Yoshihiro Ogawa, Keita Nozawa | 1999-01-12 |
| 5854365 | Toner for developing electrostatic image and method of manufacturing resin composition | Manabu Ohno, Akihiko Nakazawa, Shunji Suzuki, Hiroyuki Suematsu, Masayoshi Kato | 1998-12-29 |
| 5840459 | Toner for developing electrostatic images and process for production thereof | Manabu Ohno, Satoshi Mitsumura, Yoshinori Tsuji | 1998-11-24 |
| 5750302 | Magnetic toner for developing electrostatic image, image forming process, and process cartridge | Yoshihiro Ogawa, Koichi Tomiyama, Osamu Tamura, Shunji Suzuki | 1998-05-12 |
| 5744276 | Toner for developing electrostatic image containing higher and lower molecular weight polymer components | Manabu Ohno, Hiroyuki Suematsu, Akihiko Nakazawa, Shunji Suzuki | 1998-04-28 |
| 5489498 | Toner for developing electrostatic image and method of manufacturing resin composition | Manabu Ohno, Akihiko Nakazawa, Shunji Suzuki, Hiroyuki Suematsu, Masayoshi Kato | 1996-02-06 |
| 5364720 | Magnetic developer for developing electrostatic images | Akihiko Nakazawa, Masayoshi Kato, Manabu Ohno, Shunji Suzuki | 1994-11-15 |