Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5864737 | Image forming device which forms an electric field to discharge an object | Makoto Obu, Kunio Hibi, Kozoh Sudoh, Hidenori Kanno, Youichi Ueda +3 more | 1999-01-26 |
| 5666616 | Wet-type image forming apparatus for forming a condensed toner image | Mie Yoshino, Makoto Obu, Takeo Tsukamoto, Yusuke Takeda, Masami Hiramatsu | 1997-09-09 |
| 5521679 | Image forming apparatus having clamp for conveying a recording medium | Shigeru Suzuki, Kazuaki Iizuka, Yoshiyumi Tamiya, Kenichi Shimizu, Harumitsu Mashiko +3 more | 1996-05-28 |
| 5264273 | Structure of a recording medium for an electrostatic recorder | Tadahiro Suzuki, Kazuaki Iizuka, Kiyoshi Ohshima, Yoshiyumi Tamiya, Kenichi Shimizu +1 more | 1993-11-23 |
| 5247334 | Image formation method and apparatus with preheating and pressure image transfer with liquid toner development | Shigeru Suzuki | 1993-09-21 |
| 5202534 | Developing apparatus using a liquid developer and having a system for cleaning the development region with a vacuum pressure | Yoshiumi Tamiya, Kazuaki Iizuka, Kenichi Shimizu, Shigeru Suzuki, Kiyoshi Ohshima +1 more | 1993-04-13 |
| 5172180 | Image forming equipment with variable stepwise drive means operation | Kiyoshi Ohshima, Shigeru Suzuki, Yoshiyumi Tamiya, Kenichi Shimizu, Kazuaki Iizuka | 1992-12-15 |
| 4811158 | Solid state charger | Yasuyuki Kani, Eishu Ohdake | 1989-03-07 |
| 4803593 | Flat solid discharging device | Kazuyoshi Matsumoto, Eishu Ohdake, Shigeru Suzuki | 1989-02-07 |
| 4669859 | Developing device | Manabu Mochizuki, Itsuo Ikeda, Tsuneo Kurotori, Satoshi Shinguryo, Yuichi Kobayashi +2 more | 1987-06-02 |
| 4640129 | Method and apparatus for detecting toner concentration of two-component dry developer | Susumu Tatsumi, Koji Sakamoto | 1987-02-03 |
| RE32330 | Method of maintaining the correct conditions of an electrophotographically duplicated image | Susumu Tatsumi, Koji Sakamoto | 1987-01-13 |
| RE31707 | Method and apparatus for electrically biasing developing electrode of electrophotographic device | Tadahiro Eda | 1984-10-16 |
| 4423134 | Developing unit for electrophotography | Akira Midorikawa, Kenzo Ariyama, Susumu Tatsumi | 1983-12-27 |
| 4382420 | Development apparatus | Teruyuki Ohnuma, Nobuo Mochizuki, Hajime Oyama, Yukio Tabata | 1983-05-10 |
| 4350749 | Reverse development method | Teruyuki Ohnuma, Hajime Oyama | 1982-09-21 |
| 4310238 | Electrostatic copying apparatus | Manabu Mochizuki, Taro Kimura, Junichiro Hashimoto | 1982-01-12 |
| 4306804 | Exposure control and other component control for electrostatic copying machine | Koji Sakamoto, Susumu Tatsumi | 1981-12-22 |
| 4286543 | Apparatus for developing electrostatic image | Teruyuki Ohnuma, Hajime Oyama | 1981-09-01 |
| 4251152 | Electrostatic apparatus for multi-image formation | Takashi Yano | 1981-02-17 |
| 4231561 | Auto document feeder for use with duplex copying machine | Tamaki Kaneko, Toyokazu Satomi, Yutaka Koizumi, Isao Nakamura, Yasuhiro Tabata | 1980-11-04 |
| 4226525 | Electrostatic copying machine | Koji Sakamoto, Susumu Tatsumi | 1980-10-07 |
| 4218130 | Method for controlling a copying apparatus adapted to print images on opposite surfaces of a copy sheet | Toyokazu Satomi, Yutaka Koizumi, Isao Nakamura, Yasuhiro Tabata, Tamaki Kaneko | 1980-08-19 |
| 4215930 | Method of maintaining the correct conditions of an electrophotographically duplicated image | Susumu Tatsumi, Koji Sakamoto | 1980-08-05 |
| 4210864 | Apparatus for sensing toner density using a stationary ferromagnetic mass within the toner to increase sensitivity | Susumu Tatsumi, Koji Sakamoto, Yoshihiro Ogata | 1980-07-01 |