MH

Masakazu Hiroi

Canon: 47 patents #820 of 19,416Top 5%
OD Oki Data: 3 patents #239 of 635Top 40%
OC Oki Electric Industry Co.: 1 patents #1,459 of 2,807Top 55%
Overall (All Time): #52,689 of 4,157,543Top 2%
51
Patents All Time

Issued Patents All Time

Showing 1–25 of 51 patents

Patent #TitleCo-InventorsDate
11054781 Image formation apparatus and medium conveyance control method 2021-07-06
11054785 Image forming apparatus 2021-07-06
9778610 Image forming apparatus 2017-10-03
9382081 Image forming apparatus 2016-07-05
RE36923 Sheet stapler Koichi Murakami, Yuji Takahashi 2000-10-24
6131898 Image forming apparatus Chikara Sato, Katsuya Yamazaki, Yasuo Fukazu, Tomohito Nakagawa, Takuya Terae +3 more 2000-10-17
6098977 Sheet original conveying apparatus having original travel reverse apparatus and image forming apparatus Chikara Sato, Akimaro Yoshida, Katsuya Yamazaki, Tomohito Nakagawa, Takayuki Fujii 2000-08-08
6021305 Sheet original conveying apparatus for duplex copying Chikara Sato, Akimaro Yoshida, Katsuya Yamazaki, Yasuo Fukazu, Tomohito Nakagawa +2 more 2000-02-01
5927706 Automatic original supplying apparatus Kazuhiro Matsuo, Haruo Naruse, Takuya Terae 1999-07-27
5819151 Original feeding apparatus with rotary conveyor that releases original before reading Masataka Naito, Yuji Takahashi, Yoshinori Isobe, Akimaro Yoshida, Hitoshi Fujimoto +1 more 1998-10-06
5812912 Automatic original supplying apparatus having count mode Noriyoshi Ueda, Tomohito Nakagawa 1998-09-22
5799237 Reading apparatus in which image reading means may be fixed to read and original being conveyed Noriyoshi Ueda, Shinichi Nakamura, Yoshio Mizuno, Chikara Sato, Tokuharu Kaneko +4 more 1998-08-25
5769411 Sheet feeding apparatus with sheet separation feature Tomohito Nakagawa, Noriyoshi Ueda 1998-06-23
5645273 Sheet original supply apparatus and image forming apparatus with it Tomohito Nakagawa, Chikara Sato, Yoshinori Isobe, Akimaro Yoshida 1997-07-08
5621501 Opening-closing mechanism for an automatic original feeding apparatus Kazuhiro Matsuo, Noriyoshi Ueda, Tomohito Nakagawa, Wataru Kawata 1997-04-15
5579083 Image forming system with original feeding apparatus Masataka Naito, Yuji Takahashi, Yoshinori Isobe, Akimaro Yoshida, Hitoshi Fujimoto +1 more 1996-11-26
5556251 Sheet finisher Yoshifumi Takehara 1996-09-17
5552859 Sheet supplying apparatus with means for rocking sheet stacking plate Tomohito Nakagawa, Kazuhiro Matsuo, Hideki Orii, Satoru Kato, Akihito Dobashi +1 more 1996-09-03
5546168 Image forming apparatus with selective operation in document-fix reading mode and document-move reading mode Seiichiro Adachi, Masataka Naito 1996-08-13
RE35087 Sheet sorter with stapler Nobutaka Uto, Hironori Shido, Jun Saito, Kenji Kobayashi, Koichi Murakami +1 more 1995-11-14
5455667 Sheet handling apparatus with plural sheet storage units Masataka Naito, Norifumi Miyake, Tomohito Nakagawa 1995-10-03
5434661 Sheet post-processing apparatus including offset means for selectively offsetting sheets discharged in one of plural bins relative to sheets discharged in the other of said plural bins Yuji Takahashi 1995-07-18
5385340 Sheet post-processing apparatus Mitsuhiro Mukasa, Nobutaka Uto, Masaaki Sato, Takeshi Honjo 1995-01-31
5382016 Sheet sorter with a stapler having a controlled sheet aligning member Kenji Kobayashi, Koichi Murakami, Naho Wakao 1995-01-17
5350169 Tray apparatus Akimitsu Hoshi, Noriyoshi Iida, Tadayuki Kitajima, Nobutaka Uto 1994-09-27