TY

Tomoyoshi Yamazaki

Ricoh Company: 33 patents #538 of 9,818Top 6%
HC Hitachi Koki Co.: 1 patents #557 of 888Top 65%
📍 Ibaraki, JP: #150 of 6,779 inventorsTop 3%
Overall (All Time): #103,466 of 4,157,543Top 3%
34
Patents All Time

Issued Patents All Time

Showing 1–25 of 34 patents

Patent #TitleCo-InventorsDate
9769327 Image forming apparatus and method of positional adjustment in image formation 2017-09-19
9187280 Sheet feeding device, control method for the sheet feeding device, and image forming apparatus incorporating the sheet feeding device Toshikane Nishii, Hiroshi Fujiwara, Haruyuki Honda, Mizuna Tanaka 2015-11-17
8873989 Fixing device and image forming apparatus incorporating same Haruyuki Honda, Toshikane Nishii, Hirofumi Horita 2014-10-28
8851471 Image forming apparatus and sheet adjusting device incorporated therein 2014-10-07
8807552 Image forming apparatus, optional sheet feeder, and base plate member Kazuyoshi Kondo, Yasuo Matsuyama, Hiroshi Fujiwara, Yasuhide Ohkubo, Ippei Kimura +4 more 2014-08-19
8798517 Sheet supplying device and image forming apparatus incorporating same Yasuo Matsuyama, Ippei Kimura, Ikuo Fujii, Takamitsu Ikematsu, Masafumi Takahira +5 more 2014-08-05
8783440 Sheet member position correcting device and image forming apparatus Rie Ohtsuka 2014-07-22
8752824 Sheet inverting device and image forming apparatus incorporating same Hiroshi Fujiwara, Haruyuki Honda, Toshikane Nishii, Mizuna Tanaka 2014-06-17
8678371 Manual sheet-feeding device and image forming apparatus Shigeo Nanno, Yasuhide Ohkubo, Ippei Kimura, Yoshihide Ohta, Haruyuki Honda 2014-03-25
8666297 Image forming apparatus which determines whether a sheet stacking unit is full Haruyuki Honda, Hiroshi Fujiwara, Toshikane Nishii, Mizuna Tanaka 2014-03-04
8505913 Sheet transport mechanism and electrophotographic image forming apparatus incorporating same Toshikane Nishii, Hiroshi Fujiwara, Haruyuki Honda, Kazuyoshi Kondo, Mizuna Tanaka 2013-08-13
8465015 Image forming apparatus and control method therefor Hiroshi Fujiwara, Haruyuki Honda, Toshikane Nishii, Mizuna Tanaka 2013-06-18
8417174 Sheet feeding device and image forming apparatus incorporating same Haruyuki Honda, Hiroshi Fujiwara, Kazuyoshi Kondo, Toshikane Nishii, Mizuna Tanaka 2013-04-09
8413982 Conveyer and image forming apparatus including the same Haruyuki Honda, Hiroshi Fujiwara, Kazuyoshi Kondo, Toshikane Nishii, Mizuna Tanaka 2013-04-09
8340564 Sheet thickness detector and image forming apparatus using same Kazuyoshi Kondo, Hiroshi Fujiwara, Toshikane Nishii, Mizuna Tanaka, Haruyuki Honda 2012-12-25
8322718 Recording medium conveyer capable of effectively conveying recording medium of various types Hiroshi Fujiwara, Mizuna Tanaka, Toshikane Nishii, Kazuyoshi Kondo, Haruyuki Honda 2012-12-04
8320798 Sheet conveying device and image forming apparatus Shigeo Nanno, Hiroshi Fujiwara, Yasuhide Ohkubo, Ippei Kimura, Yoshihide Ohta +1 more 2012-11-27
8260187 Image forming device Haruyuki Honda, Yasuo Matsuyama, Hiroshi Fujiwara, Kazuyoshi Kondo, Yasuhide Ohkubo +4 more 2012-09-04
8256769 Feeding device and image forming apparatus Masafumi Takahira, Hiroshi Fujiwara, Shigeo Nanno, Yasuhide Ohkubo, Ippei Kimura +3 more 2012-09-04
8240657 Sheet feeding device and image forming apparatus Mizuna Tanaka, Hiroshi Fujiwara, Yasuo Matsuyama, Kazuyoshi Kondo, Toshikane Nishii +5 more 2012-08-14
8087666 Sheet discharge device and image forming apparatus Haruyuki Honda, Hiroshi Fujiwara, Kazuyoshi Kondo, Toshikane Nishii, Mizuna Tanaka 2012-01-03
8070159 Switchback mechanism and image forming apparatus Haruyuki Honda, Hiroshi Fujiwara, Yasuhide Ohkubo, Ippei Kimura, Toshikane Nishii +3 more 2011-12-06
8045888 Sheet conveying device and image forming apparatus Shigeo Nanno, Hiroshi Fujiwara, Yasuhide Ohkubo, Ippei Kimura, Yoshihide Ohta +1 more 2011-10-25
7992860 Sheet feeding device, image forming apparatus, and sheet feeding method Ippei Kimura, Yasuo Matsuyama, Hiroshi Fujiwara, Yasuhide Ohkubo, Toshikane Nishii +3 more 2011-08-09
7963520 Sheet loading device, sheet conveying device, and image forming apparatus Mizuna Tanaka, Hiroshi Fujiwara, Shigeo Nanno, Yasuhide Ohkubo, Haruyuki Honda +3 more 2011-06-21