Issued Patents All Time
Showing 26–46 of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5532101 | Image forming method | Keita Nozawa, Satoshi Yoshida | 1996-07-02 |
| 5510223 | Image forming method comprising electrostatic transfer of developed image and corresponding image forming apparatus | Hiroshi Yusa, Koichi Tomiyama, Tsuyoshi Takiguchi, Eiichi Imai, Tetsuya Kuribayashi +2 more | 1996-04-23 |
| 5422707 | Toner for developing electrostatic images, detachable apparatus, image forming apparatus and facsimile apparatus | Tsuyoshi Takiguchi, Koichi Tomiyama, Hiroshi Yusa, Tetsuhito Kuwashima | 1995-06-06 |
| 5392103 | Image forming method comprising electrostatic transfer of developed image and corresponding image forming apparatus | Hiroshi Yusa, Koichi Tomiyama, Tsuyoshi Takiguchi, Eiichi Imai, Tetsuya Kuribayashi +2 more | 1995-02-21 |
| 5338638 | Toner for developing electrostatic image and process for production thereof | Kiyoko Tsuchiya, Koichi Tomiyama, Masayoshi Kato, Hiroshi Yusa | 1994-08-16 |
| 5319424 | Developer for developing electrostatic image, image forming method, electrophotographic apparatus, apparatus unit, and facsimile apparatus | Koichi Tomiyama, Masayoshi Kato, Hiroshi Yusa, Kiyoko Tsuchiya | 1994-06-07 |
| 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, Eiichi Imai +3 more | 1994-04-26 |
| 5270770 | Image forming method comprising electrostatic transfer of developed image and corresponding image forming apparatus | Hiroshi Yusa, Koichi Tomiyama, Tsuyoshi Takuguchi, Eiichi Imai, Tetsuya Kuribayashi +2 more | 1993-12-14 |
| 5270143 | Developer for developing electrostatic image, image forming method, electrophotographic apparatus, apparatus unit, and facsimile apparatus | Koichi Tomiyama, Masayoshi Kato, Hiroshi Yusa, Kiyoko Tsuchiya | 1993-12-14 |
| 5262267 | Magnetic developer, image forming method and image forming apparatus | Tsuyoshi Takiguchi, Tetsuya Kuribayashi, Koichi Tomiyama, Hiroshi Yusa, Eiichi Imai | 1993-11-16 |
| 5219946 | Binder resin and process for producing it | Hirohide Tanikawa, Masaki Uchiyama, Yasutaka Akashi, Masaaki Taya, Makoto Unno +1 more | 1993-06-15 |
| 5217836 | Toner for developing electrostatic images | Tsuyoshi Takiguchi, Koichi Tomiyama, Hiroshi Yusa, Tetsuhito Kuwashima | 1993-06-08 |
| 5215845 | Image forming method and image forming apparatus | Hiroshi Yusa, Kohichi Tomiyama, Masayoshi Kato, Kiyoko Tsuchiya | 1993-06-01 |
| 5210617 | Developer for developing electrostatic images and image forming apparatus | Koichi Tomiyama, Tsuyoshi Takiguchi, Hiroshi Yusa, Eiichi Imai | 1993-05-11 |
| 5180649 | Toner having crosslinkages and method of fixing same | Hiroshi Yusa, Tsuyoshi Takiguchi, Koichi Tomiyama, Tetsuhito Kuwashima | 1993-01-19 |
| 5139914 | Developer for developing electrostatic images and image forming apparatus | Koichi Tomiyama, Tsuyoshi Takiguchi, Hiroshi Yusa, Eiichi Imai | 1992-08-18 |
| 5137796 | Magnetic developer, comprising spherical particles magnetic | Tsuyoshi Takiguchi, Tetsuya Kuribayashi, Koichi Tomiyama, Hiroshi Yusa, Eiichi Imai | 1992-08-11 |
| 5112714 | Dry magnetic electrostatic developer | Eiichi Imai, Kiichiro Sakashita, Seiichi Takagi | 1992-05-12 |
| 5043239 | Negatively chargeable developer and image forming method | — | 1991-08-27 |
| 5024915 | Positively chargeable developer | Yukou Sato | 1991-06-18 |
| 4737432 | Positively chargeable toner and developer for developing electrostatic images contains di-organo tin borate charge controller | Katsuhiko Tanaka, Hirohide Tanikawa, Naoto Kitamori, Masaki Uchiyama, Yasuo Mitsuhashi | 1988-04-12 |