FY

Fumiyuki Yamaoka

AU Atsugi Unisia: 24 patents #1 of 117Top 1%
HS Hitachi Automotive Systems: 13 patents #88 of 1,636Top 6%
AC Atsugi Motor Parts Company: 9 patents #1 of 93Top 2%
UJ Unisia Jecs: 4 patents #74 of 395Top 20%
HA Hitachi Astemo: 2 patents #393 of 1,276Top 35%
HA Hitachi Unisia Automotive: 1 patents #26 of 62Top 45%
HI Hitachi: 1 patents #17,742 of 28,497Top 65%
Overall (All Time): #45,648 of 4,157,543Top 2%
55
Patents All Time

Issued Patents All Time

Showing 51–55 of 55 patents

Patent #TitleCo-InventorsDate
4961483 Variable damping characteristics shock absorber with feature of generation of piston stroke direction indicative signal Shinobu Kakizaki, Shigeru Kikushima 1990-10-09
4949989 Automotive suspension system with variable suspension characteristics and variable damping force shock absorber therefor Shinobu Kakizaki, Shigeru Kikushima, Junichi Emura 1990-08-21
4948163 Damping characteristics variable hydraulic shock absorber for automotive suspension system with vehicular attitude suppressing capability Shigeru Kikushima, Shinobu Kakizaki, Junichi Emura 1990-08-14
4934491 Shock absorber with improved structure of thrusting piston assembly Hideaki Orihara 1990-06-19
4905799 Shock absorber Mitsuo Sasaki 1990-03-06