Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6272248 | Original-discrimination system for discriminating special document, and image forming apparatus, image processing apparatus and duplicator using the original-discrimination system | Takashi Saitoh, Hiroshi Takahashi, Yoshio Kaneko, Shigeo Kurotaka, Toshiya Hikita +11 more | 2001-08-07 |
| 6160969 | Image forming apparatus with a voltage applying unit for image transfer | Haruji Mizuishi, Masaru Tanaka, Hiroyuki Ohkaji, Kenzou Tatsumi, Hiroshi Mizusawa +3 more | 2000-12-12 |
| 5751854 | Original-discrimination system for discriminating special document, and image forming apparatus, image processing apparatus and duplicator using the original-discrimination system | Takashi Saitoh, Hiroshi Takahashi, Yoshio Kaneko, Shigeo Kurotaka, Toshiya Hikita +11 more | 1998-05-12 |
| 5659628 | Special-document discriminating apparatus and managing system for image forming apparatus having a special-document discriminating function | Michiyoshi Tachikawa, Shigeo Kurotaka, Takeshi Ukai, Yukio Sakano, Hiromi Okubo +4 more | 1997-08-19 |
| 5652803 | Special-document discriminating apparatus and managing system for image forming apparatus having a special-document discriminating function | Michiyoshi Tachikawa, Shigeo Kurotaka, Takeshi Ukai, Yukio Sakano, Hiromi Okubo +4 more | 1997-07-29 |
| 5341196 | Image forming equipment using a toner cartridge | Takashi Hodoshima, Kazuyuki Nakahara, Fumio Kishi | 1994-08-23 |
| 5321466 | Image forming equipment with reserve mode to prevent unauthorized cancellation of pending job | Yoshiyuki Kimura, Fumio Kishi | 1994-06-14 |
| 5265855 | Copier with document support moving means | Yoshiyuki Kimura, Fumio Kishi | 1993-11-30 |
| 5258248 | Image density control method for an image forming apparatus | Masaki Tokuhashi, Moriyuki Koike, Wataru Yasuda, Takashi Bisaiji, Chikara Imai | 1993-11-02 |
| 5245390 | Device for adjusting output of image density sensor incorporated in image forming equipment | Yusuke Shimbo | 1993-09-14 |
| 5184184 | Image forming apparatus | Keisuke Hayashi, Kazuyuki Nakahara, Masato Yanagida, Fumio Kishi | 1993-02-02 |
| 5122837 | Toner cartridge for an image forming apparatus | Yoshihide Sonoda, Yasuji Takagi | 1992-06-16 |
| 5057867 | Image forming apparatus which corrects the image forming factors in response to density sensing means and duration of inactive state | Yasuji Takagi | 1991-10-15 |
| 5045883 | Image density control method using exclusive patterns for an image forming apparatus | Yasuji Takagi | 1991-09-03 |
| 5028960 | Image density control method for an image forming apparatus | Wataru Yasuda, Moriyuki Koike, Masaki Tokuhashi, Yoshihiro Abe | 1991-07-02 |
| 4963938 | Toner cartridge for an image forming apparatus | Yoshihide Sonoda, Yasuji Takagi | 1990-10-16 |