Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7586629 | Printing system for allocating a plurality of image processing items between an image input device and an image output device | Masakazu Ohyama, Takahiro Daido, Yohsuke Konishi, Hitoshi Hirohata, Hiroshi Kawamura | 2009-09-08 |
| 5799139 | Image formation processing system | Haruo Yamamoto, Shuji Hayashi, Masaya Fujimoto, Koichi Matsuo, Ryuichi Okumura +1 more | 1998-08-25 |
| 5764370 | Enlargement and reduction apparatus for an image forming apparatus | Haruo Yamamoto, Masaya Fujimoto | 1998-06-09 |
| 5754683 | Image forming apparatus and gradation output adjusting method in image forming apparatus | Syuji Hayashi, Masaya Fujimoto, Koji Nakamura, Haruo Yamamoto | 1998-05-19 |
| 5642201 | Electrographic copying machine | Shinji Hayashi, Masaya Fujimoto | 1997-06-24 |
| 5539539 | Color converting circuit for use in an image forming apparatus | Masaya Fujimoto, Ryuichi Okumura, Haruo Yamamoto, Toshio Watanabe | 1996-07-23 |
| 5398109 | Apparatus and method for correcting color image data according to a masking equation | Haruo Yamamoto, Shuji Hayashi | 1995-03-14 |
| 5307135 | Color image forming apparatus having mono-color image forming function | Haruo Yamamoto, Shuji Hayashi | 1994-04-26 |
| 5163137 | Copying system with a dual trunk serial communication system using an acknowledge line | Haruo Yamamoto | 1992-11-10 |
| 4659206 | Photoconductive drum device for electrostatic copying machines or the like | Masami Kai, Shigeo Kurando, Toshinobu Katafuchi, Tetsuji Kajitani | 1987-04-21 |
| 4620782 | Automatic document feeder | Shigeo Kurando, Yoshizo Kawamori | 1986-11-04 |