KH

Kazuhiko Hirooka

Canon: 20 patents #3,238 of 19,416Top 20%
Overall (All Time): #226,247 of 4,157,543Top 6%
20
Patents All Time

Issued Patents All Time

Showing 1–20 of 20 patents

Patent #TitleCo-InventorsDate
6462834 Image processing system which forms two-color images Masahito Yamamoto, Hideki Adachi, Yoshiyuki Suzuki, Hiroyuki Ichikawa, Tetsuya Nozaki 2002-10-08
6397035 Image forming apparatus with control of conveying speeds Tatsuhito Kataoka, Yoshihiro Funamizu, Katsumi Takahashi 2002-05-28
6385406 Sheet detecting apparatus with correction means for sheet surface condition and sheet thickness Yoshihiro Funamizu, Yoshiyuki Suzuki, Michiharu Masuda, Masashi Oyumi, Hajime Kaji 2002-05-07
6311039 Sheet conveying apparatus and image forming apparatus provided with the same Yoshihiro Funamizu, Tatsuhito Kataoka, Katsumi Takahashi 2001-10-30
6134023 Image forming apparatus which outputs a color image by separating color image information into at least two color components Tetsuya Nozaki, Hideki Adachi, Yoshiyuki Suzuki, Hiroyuki Ichikawa, Masahito Yamamoto 2000-10-17
5905581 Image forming apparatus Tadashi Suzuki, Isamu Sato, Masatoshi Tanabe, Yoshio Mizuno, Yoshihiko Suzuki 1999-05-18
5734484 Image processing apparatus for receiving multicolor image information and generating two-color image information Masahito Yamamoto, Hideki Adachi, Yoshiyuki Suzuki, Hiroyuki Ichikawa, Tetsuya Nozaki 1998-03-31
5710959 Image forming apparatus having a function of turning on a power supply using a timer Yoshihiro Funamizu, Akihiko Satoh, Mitsuhiko Sato, Tetsuya Nozaki, Yoshihito Osari +1 more 1998-01-20
5699167 Image forming apparatus which outputs a color image by separating color image information into at least two color components Tetsuya Nozaki, Hideki Adachi, Yoshiyuki Suzuki, Hiroyuki Ichikawa, Masahito Yamamoto 1997-12-16
5638183 Image forming apparatus with selectively controlled resolution Kimiyoshi Hayashi 1997-06-10
5574563 Method and apparatus for forming images at different degrees of resolution Kimiyoshi Hayashi 1996-11-12
5488463 Image forming apparatus to form images onto a sheet a plurality of times Mitsuo Nimura, Shokyo Koh, Masao Watanabe 1996-01-30
5473415 Image forming apparatus having a converter for image data characteristics Kimiyoshi Hayashi, Kenichi Suda 1995-12-05
5465163 Image processing method and apparatus for processing oversized original images and for synthesizing multiple images Kunio Yoshihara, Masanori Sakai, Keiju Kuboki, Mitsuo Nimura, Ritsushi Tanabe 1995-11-07
5272544 Digital/analog converter and image processing apparatus using the same Masanori Sakai, Masao Watanabe 1993-12-21
5253082 Image forming apparatus Kimiyoshi Hayashi, Hitoshi Arai 1993-10-12
5081528 Image forming apparatus Kimiyoshi Hayashi, Hitoshi Arai, Toshio Honma, Kenichi Takeda 1992-01-14
4989039 Image forming apparatus responsive to environmental conditions Kimiyoshi Hayashi, Kenichi Suda 1991-01-29
4697915 Image forming apparatus with detecting and controlling means Kimiyoshi Hayashi, Akio Ohno, Yasushi Murayama 1987-10-06
4615612 Color image forming apparatus Akio Ohno, Yasushi Murayama, Kimiyoshi Hayashi 1986-10-07