KI

Kouji Ishikawa

HC Hitachi Construction Machinery Co.: 111 patents #1 of 1,234Top 1%
Nsk: 26 patents #25 of 1,559Top 2%
Fujitsu Limited: 3 patents #8,614 of 24,456Top 40%
TC Techno Polymer Co.: 2 patents #18 of 68Top 30%
MC Murata Manufacturing Co.: 1 patents #3,462 of 5,295Top 70%
NL Nagano Fujitsu Component Limited: 1 patents #5 of 32Top 20%
AM AMD: 1 patents #5,683 of 9,279Top 65%
TC Toagosei Co.: 1 patents #155 of 338Top 50%
FC Furukawa Techno Material Co.: 1 patents #14 of 42Top 35%
TI Toyota Industries: 1 patents #904 of 1,610Top 60%
Mitsubishi Electric: 1 patents #15,491 of 25,717Top 65%
Overall (All Time): #6,573 of 4,157,543Top 1%
146
Patents All Time

Issued Patents All Time

Showing 76–100 of 146 patents

Patent #TitleCo-InventorsDate
8919115 Hydraulic drive device for hydraulic excavator Naoki Hagiwara, Yasuo Okano, Tsuyoshi Nakamura, Kazunori Nakamura 2014-12-30
8881506 Hydraulic drive device of hydraulic operating machine Tsuyoshi Nakamura, Yasushi Arai, Hidenobu Tsukada, Shohei Kamiya 2014-11-11
8756916 Hydraulic driving device for working machine Kensuke Sato, Tsuyoshi Nakamura, Yasuo Okano 2014-06-24
8726648 Hydraulic drive device for construction machine Kensuke Sato, Hiroyuki Azuma, Tsuyoshi Nakamura, Yasuo Okano, Mitsuhiko Kanehama 2014-05-20
D704202 Construction machine display with graphic user interface Tomoki Kimura, Eitaro Ito, Ken IMAMURA, Hidetoshi Satake, Kouichi Shibata +2 more 2014-05-06
8700275 Hybrid construction machine and auxiliary control device used therein Manabu Edamura, Manabu Sugiura, Takenori Hiroki, Toshihiko Watanabe, Hidetoshi Satake 2014-04-15
D700619 Construction machine display with a graphic user interface Eitaro Ito, Tomoki Kimura, Ken IMAMURA, Daisuke Nogami, Junko Suzuki +4 more 2014-03-04
8650778 Hydraulic drive device for hydraulic working machine Yasuo Okano, Tsuyoshi Nakamura, Kensuke Sato, Naoki Hagiwara 2014-02-18
8646255 Exhaust gas purification system for engineering machine Hidenobu Tsukada, Yasushi Arai, Shohei Kamiya 2014-02-11
D693834 Construction machine display with a graphic user interface Eitaro Ito, Ken IMAMURA, Daisuke Nogami, Junko Suzuki, Hidetoshi Satake +3 more 2013-11-19
8589038 Hydraulic drive apparatus for construction equipment Naoki Hagiwara, Tsuyoshi Nakamura, Kensuke Sato, Yasuo Okano, Masanori Ezawa 2013-11-19
8516805 Hydraulic driving device for work machine Naoki Hagiwara, Tsuyoshi Nakamura, Kensuke Sato, Yasuo Okano, Mitsuhiko Kanehama +1 more 2013-08-27
8429904 Working machine Kazuhiro Shibamori, Kazunori Nakamura, Yoichi Kowatari, Hidenobu Tsukada, Shohei Kamiya +1 more 2013-04-30
8424298 Pump torque control system for hydraulic construction machine Nobuei Ariga, Hideo Karasawa, Yasuo Okano, Kazunori Nakamura, Youichi Kowatari 2013-04-23
8371117 Torque control apparatus for construction machine three-pump system Kazunori Nakamura, Nobuei Ariga, Akihiro Narazaki 2013-02-12
8336443 Hydraulic working machine Toshihiro Abe, Yusuke Kajita, Kazunori Nakamura, Hideo Karasawa 2012-12-25
8266903 Engine lag down suppressing device of construction machinery Yoichi Kowatari, Yasushi Arai, Kazunori Nakamura, Nobuei Ariga, Hideo Karasawa +2 more 2012-09-18
8162618 Method and device for controlling pump torque for hydraulic construction machine Kazunori Nakamura, Yoichi Kowatari, Yasushi Arai 2012-04-24
8006491 Pump control apparatus for construction machine Akihiro Narazaki, Nobuei Ariga 2011-08-30
7895833 Hydraulic drive apparatus Yusuke Kajita, Hideo Karasawa 2011-03-01
7891458 Steering system for engineering vehicle Kazunori Nakamura, Tsuyoshi Nakamura, Hiroyuki Azuma, Kentarou Itoga 2011-02-22
7584611 Control system for hydraulic construction machine Nobuei Ariga, Kazunori Nakamura 2009-09-08
7562615 Hydraulic working machine Toshihiro Abe, Yusuke Kajita, Kazunori Nakamura, Hideo Karasawa 2009-07-21
7543448 Control system for hydraulic construction machine Kazunori Nakamura, Nobuei Ariga, Hideo Karasawa, Yasuo Okano 2009-06-09
7464493 Work machine Tadatoshi Shimamura, Hidetoshi Satake, Nobuei Ariga 2008-12-16