Issued Patents All Time
Showing 25 most recent of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5802428 | Images forming apparatus and developer for developing electrostatic images | Manabu Ohno, Hisayuki Ochi, Tetsuhito Kuwashima, Hiroyuki Suematsu, Tsuyoshi Takiguchi +3 more | 1998-09-01 |
| 5534981 | Image forming apparatus and developer for developing electrostatic images | Manabu Ohno, Hisayuki Ochi, Tetsuhito Kuwashima, Hiroyuki Suematsu, Tsuyoshi Takiguchi +3 more | 1996-07-09 |
| 5510223 | Image forming method comprising electrostatic transfer of developed image and corresponding image forming apparatus | Tsutomu Kukimoto, Hiroshi Yusa, Koichi Tomiyama, Tsuyoshi Takiguchi, Tetsuya Kuribayashi +2 more | 1996-04-23 |
| 5392103 | Image forming method comprising electrostatic transfer of developed image and corresponding image forming apparatus | Tsutomu Kukimoto, Hiroshi Yusa, Koichi Tomiyama, Tsuyoshi Takiguchi, Tetsuya Kuribayashi +2 more | 1995-02-21 |
| 5333059 | Electrostatic imaging apparatus and facsimile apparatus employing toner with low aldehyde content | Yoshihiko Hyosu, Seiichi Takagi, Hiroyuki Suematsu, Manabu Ohno, Tetsuhito Kuwashima +1 more | 1994-07-26 |
| 5307122 | Image forming apparatus apparatus unit facsimile apparatus and developer comprising hydrophobic silica fine powder for developing electrostatic images | Manabu Ohno, Hisayuki Ochi, Tetsuhito Kuwashima, Hiroyuki Suematsu, Tsuyoshi Takiguchi +3 more | 1994-04-26 |
| 5270770 | Image forming method comprising electrostatic transfer of developed image and corresponding image forming apparatus | Tsutomu Kukimoto, Hiroshi Yusa, Koichi Tomiyama, Tsuyoshi Takuguchi, Tetsuya Kuribayashi +2 more | 1993-12-14 |
| 5262267 | Magnetic developer, image forming method and image forming apparatus | Tsuyoshi Takiguchi, Tetsuya Kuribayashi, Koichi Tomiyama, Tsutomu Kukimoto, Hiroshi Yusa | 1993-11-16 |
| 5210617 | Developer for developing electrostatic images and image forming apparatus | Koichi Tomiyama, Tsuyoshi Takiguchi, Tsutomu Kukimoto, Hiroshi Yusa | 1993-05-11 |
| 5157442 | Image forming apparatus | Koichi Tanigawa, Akihiko Takeuchi, Yasumasa Otsuka, Hiroto Hasegawa, Toshiyuki Yoshihara +1 more | 1992-10-20 |
| 5139914 | Developer for developing electrostatic images and image forming apparatus | Koichi Tomiyama, Tsuyoshi Takiguchi, Tsutomu Kukimoto, Hiroshi Yusa | 1992-08-18 |
| 5137796 | Magnetic developer, comprising spherical particles magnetic | Tsuyoshi Takiguchi, Tetsuya Kuribayashi, Koichi Tomiyama, Tsutomu Kukimoto, Hiroshi Yusa | 1992-08-11 |
| 5126224 | Electrostatic image developing toner and process for its production, and binder resin and process for its production | Yoshihiko Hyosu, Seiichi Takagi, Hiroyuki Suematsu, Manabu Ohno, Tetsuhito Kuwashima +1 more | 1992-06-30 |
| 5112714 | Dry magnetic electrostatic developer | Kiichiro Sakashita, Seiichi Takagi, Tsutomu Kukimoto | 1992-05-12 |
| 5071727 | Positively chargeable electrostatic toner containing organic metal complex or organic nitrogen, phosphino or metal compound | Takeshi Ikeda, Hiroshi Fukumoto, Katsuhiko Tanaka, Koshi Suematsu, Motoo Urawa +1 more | 1991-12-10 |
| 4845007 | Process for producing toner through suspension polymerization | Yoshihiko Hyosu, Hiromi Mori | 1989-07-04 |
| 4804610 | Process for producing toner by suspension polymerization method | Hiromi Mori, Satoshi Matsunaga, Kuniko Kobayashi, Yoshihiko Hyosu | 1989-02-14 |
| 4741984 | Positively chargeable developer | Takashi Hino | 1988-05-03 |
| 4702986 | Electrophotographic method uses toner of polyalkylene and non-magnetic inorganic fine powder | Kiichiro Sakashita, Seiichi Takagi, Tsutomo Kukimoto | 1987-10-27 |
| 4680245 | Electrophotographic positively chargeable developer containing silica treated with a nitrogen containing silane coupling agent and method of developing | Koshi Suematsu | 1987-07-14 |
| 4666815 | Method for developing electrostatic latent image with non-magnetic toner | Masaki Uchiyama, Motoo Urawa, Atsuko Yamamoto | 1987-05-19 |
| 4663263 | Toner, charge-imparting material and composition containing substituted guanidine compound for electrophotography | Takeshi Ikeda, Hiroshi Fukumoto, Katsuhiko Tanaka, Koshi Suematsu, Motoo Urawa +1 more | 1987-05-05 |
| 4657838 | Toner, charge-imparting material and composition containing organotin alkoxide | Hiroshi Fukumoto, Katsuhiko Tanaka | 1987-04-14 |
| 4628019 | Process for developing electrostatic images and toner therefor | Koshi Suematsu, Takeshi Ikeda, Atsuko Yamamoto, Koji Goto | 1986-12-09 |
| 4622281 | Magnetic color toner containing gamma ferric oxide particles | Hiroyuki Kobayashi, Yasuo Mitsuhashi | 1986-11-11 |