HF

Hiroyuki Fujikawa

Canon: 57 patents #533 of 19,416Top 3%
TO Toyota: 4 patents #6,703 of 26,838Top 25%
Sumitomo Electric Industries: 3 patents #7,735 of 21,551Top 40%
AC Advics Co.: 2 patents #250 of 686Top 40%
SM Suzuki Motor: 1 patents #523 of 1,209Top 45%
Overall (All Time): #32,900 of 4,157,543Top 1%
66
Patents All Time

Issued Patents All Time

Showing 26–50 of 66 patents

Patent #TitleCo-InventorsDate
9256148 Toner Kunihiko Nakamura, Nozomu Komatsu, Kosuke Fukudome, Yoshiaki Shiotari, Takayuki Itakura 2016-02-09
9152088 Developer replenishing cartridge and developer replenishing method Takakuni Kobori, Nozomu Komatsu, Hideki Kaneko, Takeshi Hashimoto, Ichiro Kanno +1 more 2015-10-06
9080476 Lubricating device for engine provided with turbocharger 2015-07-14
9034549 Toner Yoshiaki Shiotari, Kunihiko Nakamura, Nozomu Komatsu, Kosuke Fukudome, Takayuki Itakura 2015-05-19
8986914 Toner Kunihiko Nakamura, Nozomu Komatsu, Yoshiaki Shiotari, Koh Ishigami, Kentaro Kamae +1 more 2015-03-24
8789666 Friction couple Kenji Abe, Masaaki Nishiwaki, Hiroshi Isono, Yukihiro Shiomi, Satoshi Wakamatsu 2014-07-29
8492466 Friction material and production method of friction material Kenji Abe, Masaaki Nishiwaki, Hiroshi Isono, Satoshi Wakamatsu, Yoshio Shimura +1 more 2013-07-23
8469161 Friction couple Kenji Abe, Masaaki Nishiwaki, Hiroshi Isono, Satoshi Wakamatsu, Yoshio Shimura +1 more 2013-06-25
8455167 Toner, binary developer, and image forming method Yoshiaki Shiotari, Kosuke Fukudome, Nozomu Komatsu, Kunihiko Nakamura, Kentaro Kamae +3 more 2013-06-04
8288069 Toner and two-component developer Kunihiko Nakamura, Nozomu Komatsu, Yoshiaki Shiotari, Takeshi Ohtsu, Takayuki Itakura 2012-10-16
8247472 Friction material and production method of friction material Kenji Abe, Masaaki Nishiwaki, Hiroshi Isono, Satoshi Wakamatsu, Yoshio Shimura +1 more 2012-08-21
8142972 Developer for replenishment and image forming method Yojiro Hotta, Kazuo Terauchi, Kunihiko Nakamura, Yoshinobu Baba, Takayuki Itakura +1 more 2012-03-27
8137886 Magnetic carrier, two-component developer and image forming method Yoshinobu Baba, Koh Ishigami, Tomoko Endo, Kunihiko Nakamura, Nozomu Komatsu +2 more 2012-03-20
7983581 Fixing method and fixing device with specified temperature relationships for recording medium Koh Ishigami, Nobuyoshi Sugahara, Naoki Okamoto, Yoshinobu Baba, Takayuki Itakura 2011-07-19
7939233 Magnetic carrier and two-component developer Chika Inoue, Koh Ishigami, Kunihiko Nakamura, Nozomu Komatsu, Tomoko Endo +2 more 2011-05-10
7927775 Magnetic carrier and two component developer Nozomu Komatsu, Koh Ishigami, Kunihiko Nakamura, Chika Inoue, Yoshinobu Baba +2 more 2011-04-19
7858283 Magnetic carrier and two-component developer Koh Ishigami, Kunihiko Nakamura, Nozomu Komatsu, Chika Inoue, Tomoko Endo +2 more 2010-12-28
7452647 Color toner Kazuhiko Hayami, Hirohide Tanikawa, Tetsuya Ida, Akira Hashimoto, Nozomu Komatsu 2008-11-18
7442478 Toner and method for forming image Takayuki Itakura, Yuko Sato, Nobuyoshi Sugahara, Hirohide Tanikawa 2008-10-28
7396626 Toner Nobuyoshi Sugahara, Takayuki Itakura, Naoki Okamoto, Koh Ishigami, Yoshinobu Baba +1 more 2008-07-08
7396629 Image forming method and image forming apparatus Yoshinobu Baba, Nobuyoshi Sugahara, Koh Ishigami, Naoki Okamoto, Takayuki Itakura 2008-07-08
7381515 Image forming method and image forming apparatus Nobuyoshi Sugahara, Koh Ishigami, Naoki Okamoto, Yoshinobu Baba, Takayuki Itakura 2008-06-03
7357228 Disk brakes with noise suppression feature Katsuya Okayama 2008-04-15
7320850 Magenta toner Takayuki Itakura, Yuko Sato, Nobuyoshi Sugahara, Hirohide Tanikawa 2008-01-22
7297455 Toner, and image forming method Yuko Sato, Nobuyoshi Sugahara, Takayuki Itakura 2007-11-20