KI

Kouji Ishikawa

HC Hitachi Construction Machinery Co.: 9 patents #2 of 97Top 3%
Nsk: 1 patents #44 of 149Top 30%
Overall (2018): #6,573 of 503,207Top 2%
10
Patents 2018

Issued Patents 2018

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDate
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