Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7242491 | Printing agent service method and system | Tetsu Takahashi | 2007-07-10 |
| 7002701 | Image formation apparatus and image exposure apparatus | Youji Houki, Yoshihiko Taira | 2006-02-21 |
| 6714748 | Image forming apparatus, recording medium in which test-pattern image forming program is recorded, test-pattern image forming method, and skew angle calculation method | Susumu Imado | 2004-03-30 |
| 6434347 | Printing apparatus and toner density measuring method | — | 2002-08-13 |
| 6393244 | Color shift correcting structure of image forming apparatus | Susumu Imado | 2002-05-21 |
| 6379482 | Manufacturing device and method of the exposure device | Youji Houki, Yoshihiko Taira, Tsutomu Nagatomi | 2002-04-30 |
| 6366304 | Thermal correction for image-forming exposure device and method of manufacturing the device | Youji Houki, Yoshihiko Taira | 2002-04-02 |
| 6340982 | Image forming apparatus and exposure device thereof | Yoshihiko Taira, Youji Houki, Tsutomu Nagatomi | 2002-01-22 |
| 6330011 | Electrophotography apparatus and exposure apparatus using particularly shaped light emitting elements | Yoshihiko Taira, Youji Houki | 2001-12-11 |
| 6321060 | Printing apparatus | Youji Houki, Tsutomu Nagatomi | 2001-11-20 |
| 6292205 | Electrophotographic apparatus with quantity-of-light control | Youji Houki, Yoshihiko Taira, Kouichi Kobayashi | 2001-09-18 |
| 6219508 | Image forming apparatus with belt mark sensor | Tsutomu Nagatomi, Youji Houki | 2001-04-17 |
| 6219496 | Image forming apparatus | Takeo Kojima, Susumu Imado, Ryouhei Iwasaki | 2001-04-17 |
| 6198896 | Image formation apparatus capable of detecting and correcting positional offsets | Tsutomu Nagatomi | 2001-03-06 |
| 6118463 | Positional error correction for color image forming apparatus | Youji Houki, Kouichi Kobayashi, Hiroji Uchimura, Morihisa Kawahara, Tsutomu Nagatomi +7 more | 2000-09-12 |
| 6070041 | Printing apparatus | Hiroji Uchimura, Morihisa Kawahara, Tsutomu Nagatomi, Kouichi Kobayashi, Youji Houki +1 more | 2000-05-30 |
| 6049690 | Printing apparatus | Hiroji Uchimura, Morihisa Kawahara, Tsutomu Nagatomi, Kouichi Kobayashi, Youji Houki +1 more | 2000-04-11 |
| 6038417 | Image forming apparatus with cover lifting mechanism | Tomoyuki Nagamine, Yukio Saito, Tsutomu Nagatomi, Youji Houki | 2000-03-14 |
| 5978626 | Image forming apparatus with cover lifting mechanism | Tomoyuki Nagamine, Yukio Saito, Tsutomu Nagatomi, Youji Houki | 1999-11-02 |
| 5946523 | Printing apparatus | Hidenori Fujioka, Kazuhiko Hamazoe, Masakazu Kinoshita, Tsutomu Kawai, Masahiro Wanou +8 more | 1999-08-31 |
| 5946537 | Printing apparatus with positional offset detection and correction | Youji Houki, Tsutomu Nagatomi | 1999-08-31 |
| 5907344 | Image forming apparatus with image tone adjusting function | Takeshi Tanimoto, Youji Houki, Tsutomu Nagatomi, Masakazu Kinoshita | 1999-05-25 |
| 5798779 | Ultrasonic printing apparatus and method in which the phases of the ultrasonic oscillators are controlled to prevent unwanted phase cancellations | Yoshihiko Kaiju, Kotaro Kameya, Takaki Shimura, Atsuo Iida, Toshifumi Tanida | 1998-08-25 |
| 5732319 | Pressure roller having deflection compensating shaft | Akihiro Komuro | 1998-03-24 |
| 5612723 | Ultrasonic printer | Takaki Shimura, Atsuo Iida, Yoshihiko Kaiju, Masao Hiyane | 1997-03-18 |