Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7288351 | Magenta toner for developing electrostatic images, process for production thereof, developer and image-forming method | Yasuo Matsumura, Kazuhiko Yanagida, Manabu Serizawa, Tsutomu Kubo, Shigeru Seitoku | 2007-10-30 |
| 7094514 | Image forming method | Manabu Serizawa, Tsutomu Kubo, Kazuhiko Yanagida, Shigeru Seitoku, Yasuo Matsumura +2 more | 2006-08-22 |
| 7074540 | Image forming apparatus | Katsumi Nukada, Kazuhiro Koseki, Wataru Yamada, Takayuki Yamashita, Masahiro Iwasaki +4 more | 2006-07-11 |
| 7033719 | Toner having specific relation between absorption spectra, and developer, image forming method and image forming apparatus using same | Manabu Serizawa, Kazuhiko Yanagida, Takahisa Fujii, Emi Takahashi, Yasuo Matsumura | 2006-04-25 |
| 7018764 | Toner for developing electrostatic images, process for preparing toner for developing electrostatic images, developer for developing electrostatic images and images forming method | Yasuo Matsumura, Kazuhiko Yanagida, Manabu Serizawa, Takahisa Fujii, Tsutomu Kubo +1 more | 2006-03-28 |
| 7001701 | Color toner, electrostatic latent image developer, image forming method, and image producing device | Takahisa Fujii, Yasuo Matsumura, Kazuhiko Yanagida, Manabu Serizawa, Masaki Nakamura +1 more | 2006-02-21 |
| 6942953 | Image forming method | Manabu Serizawa, Tsutomu Kubo, Hiroyuki Tanaka, Shigeru Seitoku, Kazuhiko Yanagida +2 more | 2005-09-13 |
| 6933092 | Magenta toner for electrophotography and full color image formation method | Satoshi Yoshida, Yasuo Matsumura, Toyofumi Inoue, Takahisa Fujii | 2005-08-23 |
| 6890694 | Toner for developing electrostatic image, process for producing the same, developer for developing electrostatic image and process for forming image | Yasuo Matsumura, Satoshi Yoshida, Takahisa Fujii, Tomohito Nakajima | 2005-05-10 |
| 6846603 | Color toner, electrostatic latent image developer, image forming method, and image producing device | Takahisa Fujii, Yasuo Matsumura, Kazuhiko Yanagida, Manabu Serizawa, Masaki Nakamura +1 more | 2005-01-25 |
| 6828073 | Toner for developing electrostatic image, developer for electrostatic image, and process for forming image | Yasuo Matsumura, Satoshi Yoshida, Takahisa Fujii, Tomohito Nakajima | 2004-12-07 |
| 6821702 | Method of forming images | Takahisa Fujii, Yasuo Matsumura, Satoshi Yoshida, Tomohito Nakajima | 2004-11-23 |
| 6733938 | Toner for developing electrostatic latent image, two-component developer, and image-forming process | Masanobu Ninomiya, Yasuhiro Oya, Hirokazu Hamano, Haruhide Ishida | 2004-05-11 |
| 6444389 | Toner for developing electrostatic latent image, two-component developer and image-forming process | Masanobu Ninomiya, Yasuhiro Oya, Hirokazu Hamano, Haruhide Ishida | 2002-09-03 |
| 5972547 | Electrostatic charge image developing toner, electrostatic charge image developer, and image forming method using this developer | Michio Take, Masaki Hashimoto, Hiroshi Nakazawa, Jun Igarashi, Masanori Ichimura | 1999-10-26 |
| 5884129 | Electrostatic-image developer and image forming process | Masanori Ichimura, Michio Take, Masaki Hashimoto, Takashi Imai, Hiroshi Takano +3 more | 1999-03-16 |