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 26–50 of 146 patents

Patent #TitleCo-InventorsDate
10436229 Hydraulic drive system for work machine Seiji Hijikata, Shinya Imura 2019-10-08
10400426 Hydraulic control system for construction machine Ryohei Yamashita, Shinya Imura, Hidekazu Moriki 2019-09-03
10364550 Hydraulic drive system of work machine Hiroaki AMANO, Shinya Imura, Hidekazu Moriki, Ryohei Yamashita, Seiji Hijikata 2019-07-30
10344458 Hydraulic Drive System for work machine Seiji Hijikata, Shinya Imura 2019-07-09
10330128 Hydraulic control system for work machine Hidekazu Moriki, Shinya Imura, Tsutomu Udagawa, Ryohei Yamashita 2019-06-25
10309079 Hydraulic control system for work machine Hidekazu Moriki, Shinya Imura, Ryohei Yamashita 2019-06-04
10302028 Work machine, power unit, and diesel engine of work machine Manabu Edamura, Yuusuke Kajita, Masatoshi Hoshino, Kentarou Itoga, Naoki Ishikawa +1 more 2019-05-28
10301793 Hydraulic drive system for work machine Seiji Hijikata, Takatoshi Ooki, Shinya Imura 2019-05-28
10280594 Hydraulic energy regeneration system for work machine Seiji Hijikata, Shinya Imura 2019-05-07
10280593 Hydraulic fluid energy regeneration device for work machine Seiji Hijikata, Takatoshi Ooki, Shinya Imura 2019-05-07
10273658 Construction machine Seiji Hijikata, Yasutaka Tsuruga, Masatoshi Hoshino, Kiwamu Takahashi 2019-04-30
10253479 Hydraulic system for work machine Tomoaki Kaneta, Hidetoshi Satake, Shinya Imura 2019-04-09
10227997 Hydraulic drive system for work machine Seiji Hijikata, Shinya Imura 2019-03-12
10221871 Construction machinery Shinya Imura, Hidetoshi Satake, Seiji Hijikata, Takatoshi Ooki, Shinji Nishikawa 2019-03-05
10161108 Hydraulic fluid energy recovery system for work Seiji Hijikata, Takatoshi Ooki, Shinya Imura 2018-12-25
10060450 Hydraulic control device for work machine Tsutomu Udagawa, Akira Nakayama, Ryohei Yamashita, Shiho Izumi, Manabu Edamura +1 more 2018-08-28
10047795 Cage and rollers Eisho Watanabe, Sou Matsumoto 2018-08-14
10030361 Construction machine Seiji Hijikata, Takatoshi Ooki, Shinya Imura 2018-07-24
10006473 Hybrid construction machine Shinji Nishikawa, Hidetoshi Satake, Shinya Imura, Shiho Izumi 2018-06-26
10006472 Construction machine Shinji Nishikawa, Hidetoshi Satake, Shinya Imura, Shiho Izumi 2018-06-26
9951797 Work machine Shinya Imura, Hidetoshi Satake, Tomoaki Kaneta 2018-04-24
9926950 Hydraulic system for construction machinery Takatoshi Ooki, Seiji Hijikata 2018-03-27
9890518 Hydraulic drive system for construction machine Kensuke Sato, Tsuyoshi Nakamura 2018-02-13
9863123 Construction machine Tomoaki Kaneta, Hidetoshi Satake, Shinya Imura 2018-01-09
9822803 Work machine Shinya Imura, Hidetoshi Satake, Shinji Nishikawa, Tomoaki Kaneta, Shiho Izumi 2017-11-21