Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7097952 | Toner, process for producing a toner, image forming method and image forming apparatus | Atsushi Kubo, Masanori Ito, Tomoaki Igarashi, Kiyokazu Suzuki | 2006-08-29 |
| 6972166 | Toner, process for producing a toner, image forming method and image forming apparatus | Atsushi Kubo, Masanori Ito, Tomoaki Igarashi, Kiyokazu Suzuki | 2005-12-06 |
| 6706458 | Toner, process for producing a toner, image forming method and image forming apparatus | Atsushi Kubo, Masanori Ito, Tomoaki Igarashi, Kiyokazu Suzuki | 2004-03-16 |
| 6555281 | Toner, process for producing a toner, image forming method and image forming apparatus | Atsushi Kubo, Masanori Ito, Tomoaki Igarashi, Kiyokazu Suzuki | 2003-04-29 |
| 6541174 | Method using toner and developer for developing electrostatic image | Hirohide Tanikawa, Toshiaki Nakahara, Kazuyoshi Hagiwara, Minoru Shimojo, Rika Shinba +2 more | 2003-04-01 |
| 6187496 | Toner and developer for developing electrostatic image, process for production thereof and image forming method | Hirohide Tanikawa, Toshiaki Nakahara, Kazuyoshi Hagiwara, Minoru Shimojo, Rika Shinba +2 more | 2001-02-13 |
| 6077638 | Toner and developer for developing electrostatic image, process for production thereof and image forming method | Hirohide Tanikawa, Toshiaki Nakahara, Kazuyoshi Hagiwara, Minoru Shimojo, Rika Shinba +2 more | 2000-06-20 |
| 6060202 | Toner for developing electrostatic images image forming method and process cartridge | Yoshihiro Ogawa, Koichi Tomiyama, Shunji Suzuki | 2000-05-09 |
| 6033817 | Toner for developing electrostatic image and image forming method | Hiroshi Yusa, Motoo Urawa, Yuki Karaki, Kazuo Maruyama | 2000-03-07 |
| 5976752 | Toner and image forming method | Satoshi Matsunaga, Koichi Tomiyama, Yuichi Mizoh, Minekazu Endo, Tadashi Doujo +2 more | 1999-11-02 |
| 5858593 | Magnetic toner, apparatus unit and image forming method | Osamu Tamura, Koichi Tomiyama, Nobuyuki Okubo, Shunji Suzuki, Yoshihiro Ogawa | 1999-01-12 |
| 5840457 | Magnetic black toner and multi-color or full-color image forming method | Motoo Urawa, Hiroshi Yusa, Takashige Kasuya, Yuki Karaki, Kazuo Maruyama +1 more | 1998-11-24 |
| 5774771 | Image forming method and apparatus using a particular toner | Tsutomu Kukimoto, Motoo Urawa, Kenji Okado, Toshiyuki Ugai, Satoshi Yoshida +1 more | 1998-06-30 |
| 5712070 | Toner for developing electrostatic image, image forming method, developing device and process cartridge | Motoo Urawa, Osamu Tamura, Tsutomu Kukimoto | 1998-01-27 |
| 5710965 | Developer for developing electrostatic images and image forming method | Tsutomu Kukimoto, Satoshi Matsunaga, Kazuyoshi Hagiwara | 1998-01-20 |
| 5618647 | Magnetic toner and image forming method | Tsutomu Kukimoto, Yasuhide Goseki, Motoo Urawa, Masayoshi Shimamura, Keiji Okano +2 more | 1997-04-08 |
| 5532101 | Image forming method | Satoshi Yoshida, Tsutomu Kukimoto | 1996-07-02 |
| 5389487 | Image forming process, image-forming apparatus, apparatus unit, and facsimile apparatus | Hiroaki Kawakami, Shinji Doi, Masatsugu Fujiwara, Masashi Jimbo | 1995-02-14 |
| 5213933 | Positively chargeable magnetic toner, image forming process image forming apparatus, apparatus unit and facsimile apparatus | Ichirou Osaki, Kuniko Kobayashi, Masatsugu Fujiwara, Masayoshi Shimamura | 1993-05-25 |
| 5143810 | Magnetic toner for developing electrostatic image | Seiichi Takagi | 1992-09-01 |
| 4857432 | Toner for developing electrostatic charge image | Hirohide Tanikawa, Toshiaki Nakahara | 1989-08-15 |