YM

Yasuo Matsuyama

Ricoh Company: 16 patents #1,360 of 9,818Top 15%
Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%
WU Waseda University: 1 patents #116 of 411Top 30%
Overall (All Time): #256,355 of 4,157,543Top 7%
18
Patents All Time

Issued Patents All Time

Showing 1–18 of 18 patents

Patent #TitleCo-InventorsDate
9630788 Paper output tray, paper output unit incorporating same, and image forming apparatus incorporating same Hirofumi Horita, Ippei Kimura, Mizuna Tanaka, Ikuo Fujii 2017-04-25
9108818 Sheet discharger and image forming apparatus including same Ippei Kimura, Ikuo Fujii 2015-08-18
9085426 Feeding device and image forming apparatus Ikuo Fujii, Ippei Kimura, Mizuna Tanaka, Hirofumi Horita, Takamitsu Ikematsu +1 more 2015-07-21
8807552 Image forming apparatus, optional sheet feeder, and base plate member Kazuyoshi Kondo, Hiroshi Fujiwara, Yasuhide Ohkubo, Ippei Kimura, Toshikane Nishii +4 more 2014-08-19
8798517 Sheet supplying device and image forming apparatus incorporating same Ippei Kimura, Ikuo Fujii, Takamitsu Ikematsu, Masafumi Takahira, Kaoru Tada +5 more 2014-08-05
8770576 Sheet feed unit and image forming apparatus including same Ippei Kimura, Takamitsu Ikematsu, Kaoru Tada, Ikuo Fujii 2014-07-08
8684348 Sheet supplying device and image forming apparatus incorporating same Ippei Kimura, Takamitsu Ikematsu, Ikuo Fujii, Kaoru Tada 2014-04-01
8360418 Sheet supplying device and image forming apparatus incorporating same Takamitsu Ikematsu, Kaoru Tada, Ippei Kimura, Ikuo Fujii 2013-01-29
8260187 Image forming device Haruyuki Honda, Hiroshi Fujiwara, Kazuyoshi Kondo, Yasuhide Ohkubo, Ippei Kimura +4 more 2012-09-04
8240657 Sheet feeding device and image forming apparatus Mizuna Tanaka, Hiroshi Fujiwara, Kazuyoshi Kondo, Toshikane Nishii, Ippei Kimura +5 more 2012-08-14
8244474 Feature pattern recognition system, method, and program Ryo Kawamura, Keita Shimoda 2012-08-14
8194266 Positional error detection method and apparatus, and computer-readable storage medium Tatsuya Miyadera, Kenji Asuwa, Izumi Kinoshita, Hiroaki Ikeda, Tatsuya Ozaki +1 more 2012-06-05
8118301 Sheet discharging device and image forming apparatus including same Ikuo Fujii, Ippei Kimura 2012-02-21
7992860 Sheet feeding device, image forming apparatus, and sheet feeding method Ippei Kimura, Hiroshi Fujiwara, Yasuhide Ohkubo, Toshikane Nishii, Mizuna Tanaka +3 more 2011-08-09
7773912 Image forming apparatus and latent-image-carrier position adjusting method 2010-08-10
7677555 Sheet conveying apparatus and image forming apparatus with vibration applying unit Mizuna Tanaka, Hiroshi Fujiwara, Tomoyoshi Yamazaki, Toshikane Nishii, Kazuyoshi Kondo +4 more 2010-03-16
5745052 Parking lot control system Michio Kimoto, Masaru Iyama 1998-04-28
5661573 Image reading apparatus having a roller supported by a flexible shaft Kenichi Takehara 1997-08-26