Issued Patents All Time
Showing 25 most recent of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11046772 | Process of production with controlled copper ions | Seiko YAMAMOTO, Hiroyuki Doi | 2021-06-29 |
| 9902777 | Methods for producing subtypes of humanized antibody against interleukin-6 receptor | Katsuhiro Kano | 2018-02-27 |
| 8734800 | Subtypes of humanized antibody against interleukin-6 receptor | Katsuhiro Kano | 2014-05-27 |
| 8398980 | Subtypes of humanized antibody against interleuken-6 receptor | Katsuhiro Kano | 2013-03-19 |
| 7023629 | Projection lens unit | Kumajiro Sekine, Susumu Matsumoto | 2006-04-04 |
| 6181889 | Image forming apparatus with reduced latent image vibration caused by photosensitive belt joint | Tomio Hayano, Tetsuro Akasaki, Kazuhiro Wakamatsu, Shoji Ukei | 2001-01-30 |
| 6038416 | Developing apparatus and image forming apparatus having the same | Tadashi Okano, Masahiko Saito, Shoji Takeya, Toru Miyasaka, Kazushige Oonishi | 2000-03-14 |
| 5797075 | Image forming apparatus having improved toner carrier arrangement | Masahiko Saito, Toru Miyasaka, Kazushige Oonishi, Shoji Takeya, Tetsuro Akasaki +1 more | 1998-08-18 |
| 5761568 | Electro-photographic apparatus having transfer bias control | Hideyuki Haragakiuchi, Hiroyuki Tadokoro, Nobuaki Fukasawa, Akira Sasaki, Masashi Yamamoto | 1998-06-02 |
| 5604572 | Developing apparatus having developing agent accommodating cartridge and cartridge for accommodating developing agent for use in developing apparatus | Mitsuo Suzuki, Katsumi Kumada | 1997-02-18 |
| 5602578 | Color printer with transfer and superposition of different color toner images onto intermediate transcription member | Michio Sumiyoshi, Akira Sasaki, Hiroyuki Tadokoro, Takeshi Kato, Junichi Matsuno +1 more | 1997-02-11 |
| 5555074 | Electrophotographic apparatus and electrophotographic method | Hideyuki Haragakiuchi, Hiroyuki Tadokoro, Nobuaki Fukasawa, Akira Sasaki, Kazuyoshi Matsuo +2 more | 1996-09-10 |
| 5530527 | Color electrophotographic device with developer stirring | Nobuaki Fukasawa, Hiroyuki Tadokoro, Akira Sasaki | 1996-06-25 |
| 5491537 | Developing apparatus having developing agent accommodating cartridge and cartridge for accommodating developing agent for use in developing apparatus | Mitsuo Suzuki, Katsumi Kumada | 1996-02-13 |
| 5434652 | Color electrophotographic device with developer stirring | Nobuaki Fukasawa, Hiroyuki Tadokoro, Akira Sasaki | 1995-07-18 |
| 5373354 | Color electrophotographic device and method | Hiroyuki Tadokoro, Kazuhiro Wakamatsu | 1994-12-13 |
| 5291254 | Electrophotographic recording apparatus | Akira Shimada, Tomoji Kitagishi, Kazuhiro Wakamatsu, Masahiko Saito | 1994-03-01 |
| 5285221 | Color image electrophotographic apparatus having photosensitive body and intermediate transfer body | Michio Sumiyoshi, Akira Sasaki, Hiroyuki Tadokoro | 1994-02-08 |
| 5164781 | Color image electrophotographic apparatus for printing long-size copy images | Syoji Sagae, Hiroyuki Tadokoro | 1992-11-17 |
| 5095339 | Developing apparatus | — | 1992-03-10 |
| 4952981 | Toner image printing apparatus | — | 1990-08-28 |
| 4513300 | Apparatus for driving a semiconductor laser for use in a laser-beam printer | Kimio Tatsuno, Susumu Saito, Shoichi Ito, Yoshifumi Homma, Mitsugu Asano +1 more | 1985-04-23 |
| 4469430 | Light beam printer | — | 1984-09-04 |
| 4397265 | Particle level sensing apparatus | — | 1983-08-09 |
| 4342283 | Developing apparatus for electrostatic duplicator | — | 1982-08-03 |