Issued Patents All Time
Showing 25 most recent of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5943082 | Image recording apparatus using optical beam for applying a transfer bias of a polarity so as not to repel adhesive toner | Seiji Uchiyama, Yukihide Ushio, Shinpei Matsuo, Youji Serizawa, Makoto Takeuchi +2 more | 1999-08-24 |
| 5812174 | Device for driving a laser diode and an electrophotography type image forming apparatus using the same | Katsuhisa Ogawa | 1998-09-22 |
| 5768654 | Image forming apparatus with fixing temperature control | Hakaru Muto, Eihiro Sakaki | 1998-06-16 |
| 5694158 | Image forming apparatus with image carrier and sheet feed drive control | Junichi Kato, Masaki Ojima, Takahiro Inoue, Masahiro Goto, Koichi Hiroshima +10 more | 1997-12-02 |
| 5610646 | Image forming apparatus having improved resolution switching capabilities | Yukio Isaka, Yoji Serizawa, Yukihide Ushio, Seiji Uchiyama, Kazuro Yamada +1 more | 1997-03-11 |
| 5512929 | Image forming apparatus with fixer temperature control | Yoji Serizawa, Yukihide Ushio, Shimpei Matsuo, Kazuro Yamada, Seiji Uchiyama +10 more | 1996-04-30 |
| 5513012 | Image forming apparatus having density correction for image formation | Makoto Takeuchi, Yukihide Ushio, Shimpei Matsuo, Seiji Uchiyama, Kazuro Yamada +1 more | 1996-04-30 |
| 5504588 | Image forming apparatus with optical reflective density of image adjusted according to image resolution discriminated from signal other than image signal | Makoto Takeuchi, Yukihide Ushio, Shimpei Matsuo, Seiji Uchiyama, Kazuro Yamada +1 more | 1996-04-02 |
| 5475414 | Image forming apparatus having plural printing resolutions | Yukio Isaka, Yoji Serizawa, Yukihide Ushio, Seiji Uchiyama, Kazuro Yamada +1 more | 1995-12-12 |
| 5463410 | Image recording apparatus using optical beam | Seiji Uchiyama, Yukihide Ushio, Shinpei Matsuo, Youji Serizawa, Makoto Takeuchi +2 more | 1995-10-31 |
| 5455603 | Image forming apparatus with feeder control based on pixel conversion status | Kenjiro Hori, Satoshi Akiyama, Takashi Nakahara, Toshio Yoshimoto, Yoshimi Kuramochi +10 more | 1995-10-03 |
| 5412480 | Image forming apparatus with fixer temperature control | Yoji Serizawa, Yukihide Ushio, Shimpei Matsuo, Kazuro Yamada, Seiji Uchiyama +10 more | 1995-05-02 |
| 5373518 | Image forming apparatus and constant current circuit switching device for use therewith | Seiji Uchiyama, Yukihide Ushio, Shimpei Matsuo, Yoji Serizawa, Kazuro Yamada +2 more | 1994-12-13 |
| 5325376 | Communication system for detecting a communication error in information transmitted between a plurality of units and a main control unit | Yukihide Ushio, Yoji Serizawa, Seiji Uchiyama, Kazuro Yamada, Makoto Takeuchi +1 more | 1994-06-28 |
| 5274402 | Image forming apparatus with fixer temperature control | Yoji Serizawa, Yukihide Ushio, Shimpei Matsuo, Kazuro Yamada, Seiji Uchiyama +10 more | 1993-12-28 |
| 5258779 | Image forming apparatus with means for controlling feeding of recording medium | Yoji Serizawa, Yukihide Ushio, Shimpei Matsuo, Seiji Uchiyama, Makoto Takeuchi +1 more | 1993-11-02 |
| 5051601 | Electronic apparatus with light communication | Hiroshi Atobe, Yukihide Ushio, Yoji Serizawa, Seiji Uchiyama, Kazuro Yamada +1 more | 1991-09-24 |
| 4978980 | Control method for a both-surface/multiplex recording apparatus | Hiroshi Hashimoto | 1990-12-18 |
| 4809025 | Recording apparatus | — | 1989-02-28 |
| 4623917 | Color image data processing device featuring ghost elimination | — | 1986-11-18 |
| 4622595 | Image display unit capable of tone reproduction | Masayuki Hisatake, Haruhiko Moriguchi, Toshiharu Inui | 1986-11-11 |
| 4591905 | Color image data processing device for correcting red ghosts of black images | — | 1986-05-27 |
| 4590487 | Thermal recording apparatus | Haruhiko Moriguchi, Toshiharu Inui, Masayuki Hisatake | 1986-05-20 |
| 4587530 | Thermal head driving/control apparatus | — | 1986-05-06 |
| 4580153 | Record material | Mitsuru Kondo, Nobuo Kanda, Yukio Takayama | 1986-04-01 |