KH

Katsuaki Hirai

Canon: 27 patents #2,142 of 19,416Top 15%
Overall (All Time): #155,840 of 4,157,543Top 4%
26
Patents All Time

Issued Patents All Time

Showing 1–25 of 26 patents

Patent #TitleCo-InventorsDate
8155576 Sheet processing apparatus and image forming apparatus Daijiro Kato, Takeshi Aoyama, Masahiro Funakoshi, Shoko Magata, Yuichi Yamamoto 2012-04-10
7942399 Sheet processing apparatus and image forming apparatus having the same Takeshi Aoyama, Shoko Magata, Yuichi Yamamoto, Masahiro Funakoshi, Daijiro Kato 2011-05-17
7780164 Sheet processing apparatus and image forming apparatus 2010-08-24
7673868 Sheet processing system Tomokazu Nakamura, Akihiro Sato, Akihiro Shimizu, Tatsuya Goto, Hideki Kushida 2010-03-09
7437093 Sheet-processing system Hideki Kushida, Tomokazu Nakamura, Akihiro Sato, Akihiro Shimizu, Tatsuya Goto 2008-10-14
7426367 Sheet processing apparatus and image forming apparatus 2008-09-16
7380779 Sheet processing system Tomokazu Nakamura, Akihiro Sato, Akihiro Shimizu, Tatsuya Goto, Hideki Kushida 2008-06-03
7296791 Image forming apparatus, sheet containing device, sheet inserting device, book-binding system, and sheet processing apparatus Masahiro Kurahashi, Norifumi Miyake, Keizo Isemura, Yuji Yamanaka, Naoto Watanabe +2 more 2007-11-20
7134370 Sheet processing apparatus Mitsushige Murata, Yuji Morishige, Itsuo Sekita, Seiichiro Adachi, Naoto Watanabe 2006-11-14
7120373 Sheet-processing system Hideki Kushida, Tomokazu Nakamura, Akihiro Sato, Akihiro Shimizu, Tatsuya Goto 2006-10-10
6860478 Sheet processor with hole punch controller which avoids punching when preexisting hole exists and image forming apparatus provided with the same 2005-03-01
6474633 Stapler with interchangeable cartridges 2002-11-05
6374077 Sheet processing apparatus and image forming apparatus having this Masaaki Sato, Katsuhito Kato, Koji Fukuyama 2002-04-16
6283470 Sheet treating apparatus with aligning device and image forming apparatus having the same 2001-09-04
6264194 Sheet handling device and images forming apparatus using the device Kenichi Hayashi 2001-07-24
6155552 Sorter and image forming apparatus Noriyoshi Ueda, Shinichi Nakamura, Yoshifumi Takehara, Chikara Sato, Yuji Morishige +2 more 2000-12-05
5932722 Hydroxygallium phthalocyanine compound, production process therefor and electrophotographic photosensitive member using the compound Noriyoshi Ueda, Yoshifumi Takehara, Masaaki Sato, Katsuhito Kato, Naho Saitoh +1 more 1999-08-03
5897250 Sheet processing apparatus Noriyoshi Ueda, Yoshifumi Takehara, Masaaki Sato, Katsuhito Kato, Naho Saitoh +1 more 1999-04-27
5871208 Sheet convey apparatus with horizontal sheet stacking plate above convey means Masataka Naito 1999-02-16
5671917 Original convey apparatus with last original detection sensor Satoshi Choho, Akimaro Yoshida, Shuichi Yabe 1997-09-30
5617196 Original feeding method with originals mounted side by side Noriyoshi Ueda, Masaaki Sato 1997-04-01
5573233 Sheet post-processing apparatus with malfunction operation Yoshifumi Takehara 1996-11-12
5465949 Automatic sheet feeding device with selectively applied pressure member Takeshi Yamada 1995-11-14
5229816 Original image reading device Hitoshi Fujimoto, Masataka Naitou 1993-07-20
5192976 Sheet original feeding apparatus with detachable auxiliary feeder Tadayuki Kitajima, Masataka Naito, Noriyoshi Ueda, Takeshi Honjo, Yuji Morishige +1 more 1993-03-09