Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8077300 | MTF measuring system, MTF measuring method, MTF measuring unit and MTF measuring program | Takashi Masuda, Kouki Yoshida, Takaharu Aoki | 2011-12-13 |
| 6295432 | Image forming apparatus having an injection charging system and a two component contact development device | Masahiro Inoue, Yoshiaki Kobayashi, Masaru Hibino | 2001-09-25 |
| 5895146 | Charging device and image forming apparatus | Masahiro Itoh, Ryo Inoue | 1999-04-20 |
| 5835821 | Image forming apparatus | Hiroyuki Suzuki, Masahiro Itoh, Masahiro Inoue, Takeo Yamamoto, Ryo Inoue | 1998-11-10 |
| 5805960 | Image forming apparatus which applies oscillating voltage to developer carrying member | Hiroyuki Suzuki, Masahiro Itoh, Ryo Inoue | 1998-09-08 |
| 5797070 | Image-forming apparatus featuring a plurality of image forming means | Masahiro Itoh, Hiroyuki Suzuki, Ryo Inoue | 1998-08-18 |
| 5781832 | Image forming apparatus in which residual toner is recovered by developing means | Ryo Inoue, Hiroyuki Suzuki | 1998-07-14 |
| 5758038 | Image forming apparatus | Masahiro Itoh, Hiroyuki Suzuki, Ryo Inoue | 1998-05-26 |
| 5576812 | Developing method with carrier chains contacted to image bearing member | Masaru Hibino, Yukio Nagase, Hiroyuki Suzuki | 1996-11-19 |
| 5459559 | Magnetic brush developing method using a two-component developer | Yukio Nagase, Hiroyuki Suzuki, Masaru Hibino | 1995-10-17 |
| 5438394 | Image forming apparatus usable with a carrier having magnetization controlled in relation to recording density | Hiroyuki Suzuki, Yukio Nagase, Kazuhisa Kemmochi, Masaru Hibino | 1995-08-01 |
| 5414497 | Powder conveying device | Hiroaki Tsuchiya, Keishi Ohsawa, Yuji Sakemi, Nobuyuki Ito, Takehiro Takano +1 more | 1995-05-09 |
| 5329346 | Multi-color image forming system | Hiroyuki Suzuki | 1994-07-12 |
| 5270484 | Powder conveying device | Hiroaki Tsuchiya, Keishi Ohsawa, Yuji Sakemi, Nobuyuki Ito, Takehiro Takano +1 more | 1993-12-14 |
| 5249022 | Image forming device having an electrically dielectric regulating member conductive transfer member and a disposed at a transfer station thereof | Akira Watanabe, Tatsuo Takeuchi, Yasushi Miura, Takeo Tsunemi | 1993-09-28 |
| 5081501 | Image forming apparatus having transfer electrode | Takeo Tsunemi, Akira Watanabe | 1992-01-14 |
| 5003351 | Image forming apparatus | Nobuhiro Hayashi | 1991-03-26 |