Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6975414 | Electrophotographic recording device | Takeo Kojima | 2005-12-13 |
| 6379482 | Manufacturing device and method of the exposure device | Hirofumi Nakayasu, Youji Houki, Yoshihiko Taira | 2002-04-30 |
| 6340982 | Image forming apparatus and exposure device thereof | Yoshihiko Taira, Youji Houki, Hirofumi Nakayasu | 2002-01-22 |
| 6321060 | Printing apparatus | Hirofumi Nakayasu, Youji Houki | 2001-11-20 |
| 6219508 | Image forming apparatus with belt mark sensor | Hirofumi Nakayasu, Youji Houki | 2001-04-17 |
| 6198896 | Image formation apparatus capable of detecting and correcting positional offsets | Hirofumi Nakayasu | 2001-03-06 |
| 6118463 | Positional error correction for color image forming apparatus | Youji Houki, Kouichi Kobayashi, Hiroji Uchimura, Morihisa Kawahara, Hirofumi Nakayasu +7 more | 2000-09-12 |
| 6070041 | Printing apparatus | Hirofumi Nakayasu, Hiroji Uchimura, Morihisa Kawahara, Kouichi Kobayashi, Youji Houki +1 more | 2000-05-30 |
| 6055401 | Electrophotographic image-forming apparatus having developing device which includes a plurality of developing rollers | Yoshihiro Tonomoto, Hiroshi Sato, Toshio Hino, Toshimasa Toyama, Masaaki Ohyama +4 more | 2000-04-25 |
| 6049690 | Printing apparatus | Hirofumi Nakayasu, Hiroji Uchimura, Morihisa Kawahara, Kouichi Kobayashi, Youji Houki +1 more | 2000-04-11 |
| 6038417 | Image forming apparatus with cover lifting mechanism | Tomoyuki Nagamine, Yukio Saito, Hirofumi Nakayasu, Youji Houki | 2000-03-14 |
| 5978626 | Image forming apparatus with cover lifting mechanism | Tomoyuki Nagamine, Yukio Saito, Hirofumi Nakayasu, Youji Houki | 1999-11-02 |
| 5946537 | Printing apparatus with positional offset detection and correction | Hirofumi Nakayasu, Youji Houki | 1999-08-31 |
| 5946523 | Printing apparatus | Hidenori Fujioka, Kazuhiko Hamazoe, Masakazu Kinoshita, Tsutomu Kawai, Masahiro Wanou +8 more | 1999-08-31 |
| 5907344 | Image forming apparatus with image tone adjusting function | Takeshi Tanimoto, Youji Houki, Hirofumi Nakayasu, Masakazu Kinoshita | 1999-05-25 |
| 5718527 | Paper delivery system | Tetsuya Fujimoto, Yoshito Fukata, Tatsuhiro Taniwa, Hirotoshi Ikuta, Hiroshi Kishimoto +2 more | 1998-02-17 |
| 5570959 | Method and system for printing gap adjustment | Hisao Moriwaki, Kouichi Uozumi, Hiroshi Fujimoto, Daigo Uchikoshi, Mitsunori Hiraishi +3 more | 1996-11-05 |