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Sei Shimahara

Caterpillar: 7 patents #907 of 8,398Top 15%
Overall (All Time): #706,328 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
11781287 Hydraulic circuit for a construction machine Isao Konishi, Genta Mine, Yuya Kanenawa, Shinya Ohmura, Kazuya Miyamori 2023-10-10
9309649 Work machine Hiroyasu Nishikawa, Manabu Nakanishi, Masashi Shibata 2016-04-12
9103095 Hydraulic circuit control device and work machine Hiroyasu Nishikawa, Manabu Nakanishi, Masashi Shibata 2015-08-11
8899035 Hydraulic control apparatus for work machine Hiroyasu Nishikawa, Seiichi Akiyama, Yusuke Shimizu, Atsunobu Doi, Manabu Nakanishi +1 more 2014-12-02
7958907 Fluid pressure circuit Hiroyasu Nishikawa 2011-06-14
7930970 Control unit for work machine Hiroyasu Nishikawa, Manabu Nakanishi 2011-04-26
7926411 Valve control unit Hiroyasu Nishikawa, Manabu Nakanishi 2011-04-19