KH

Keiji Hisahara

HI Hitachi: 1 patents #17,742 of 28,497Top 65%
HA Hitachi Unisia Automotive: 1 patents #26 of 62Top 45%
UJ Unisia Jecs: 1 patents #221 of 395Top 60%
Overall (All Time): #1,582,972 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
7409937 Hydraulic control system for internal combustion engine Toshiro Ichikawa, Seiji Suga, Osamu Fujita, Takanori Sawada 2008-08-12
6802289 Valve timing control system for internal combustion engine Hideyuki Miyazaka, Taisuke Sakane, Yoshinori Ichinosawa, Hisashi Murakami 2004-10-12
5383770 Radial piston pump with vent in hollow piston 1995-01-24