Issued Patents All Time
Showing 26–50 of 50 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5719613 | Apparatus for forming an image with use of electrophotographic process | Takanobu Yamada | 1998-02-17 |
| 5663814 | Digital image forming apparatus for forming a stable image | Yoshinobu Hada, Takanobu Yamada | 1997-09-02 |
| 5633669 | Image forming apparatus for synthesizing a differential peak signal and an image signal | Yoshinobu Hada, Masaki Tanaka, Kouichi Etou | 1997-05-27 |
| 5585927 | Digital image forming apparatus having gradation characteristic setting means | Takanobu Yamada, Yoshinobu Hada, Hiroyuki Ideyama, Yasuhiro Ohno | 1996-12-17 |
| 5453773 | Electrophotographic image forming apparatus comprising means for automatically adjusting image reproduction density | Yoshihiro Hattori, Takanobu Yamada, Yoshikazu Naito | 1995-09-26 |
| 5420614 | Digital image forming apparatus | Yoshinobu Hada, Takanobu Yamada | 1995-05-30 |
| 5343235 | Apparatus and method for forming an image including correction for laser beam size | Takanobu Yamada | 1994-08-30 |
| 5250959 | Electrophotographic image forming apparatus and method | Takanobu Yamada | 1993-10-05 |
| 5212560 | Electrophotographic image forming apparatus comprising means for automatically adjusting image reproduction density | Yoshihiro Hattori, Takanobu Yamada, Yoshikazu Naito | 1993-05-18 |
| 5206686 | Apparatus for forming an image with use of electrophotographic process including gradation correction | Takanobu Yamada, Masaaki Nishiyama | 1993-04-27 |
| 5189441 | Image forming apparatus having density control | Takanobu Yamada | 1993-02-23 |
| 5146274 | Toner density measurement apparatus having output characteristics variable with humidity | Yoshihiro Hattori, Yoshinobu Hada | 1992-09-08 |
| 5124751 | Image forming apparatus with a toner density control device | Takanobu Yamada | 1992-06-23 |
| 5119144 | Cleaner provided in a copying machine | Yoshinobu Hada, Yoshihiro Hattori | 1992-06-02 |
| 5005517 | Developing device | Yoshihiro Hattori, Yoshinobu Hada | 1991-04-09 |
| 4936567 | Sheet transport apparatus | — | 1990-06-26 |
| 4935776 | Image forming apparatus | — | 1990-06-19 |
| 4928951 | Automatic paper feed device | — | 1990-05-29 |
| 4867436 | Sheet aligning arrangement | Yoshihiro Hanada, Yasuo Nakamura | 1989-09-19 |
| 4852868 | Automatic paper feeding apparatus | Chujiro Yokoyama | 1989-08-01 |
| 4801134 | Paper feed apparatus capable of feeding of common use papers and specifically processed papers | Chujiro Yokoyama, Haruki Iwatsuki | 1989-01-31 |
| 4745439 | Copying apparatus | Yoshihiro Hanada, Yasuo Nakamura | 1988-05-17 |
| 4515358 | Sheet feeding apparatus | — | 1985-05-07 |
| 4496145 | Sheet feeding apparatus | — | 1985-01-29 |
| 4395034 | Sheet feeding device | — | 1983-07-26 |