HO

Hiroya Ohkumo

SU Subaru: 32 patents #8 of 1,436Top 1%
HI Hitachi: 1 patents #17,742 of 28,497Top 65%
📍 Koganei, JP: #18 of 449 inventorsTop 5%
Overall (All Time): #114,528 of 4,157,543Top 3%
32
Patents All Time

Issued Patents All Time

Showing 26–32 of 32 patents

Patent #TitleCo-InventorsDate
4803967 System for controlling ignition timing of an internal combustion engine 1989-02-14
4803900 Transmission ratio control system for a continuously variable transmission 1989-02-14
4792027 Control system for a clutch for a vehicle 1988-12-20
4764156 System for controlling transmission ratio of a continuously variable transmission for a motor vehicle 1988-08-16
4730712 System for controlling a clutch for a motor vehicle 1988-03-15
4633831 Fuel cutoff system for a motor vehicle 1987-01-06
4598679 Fuel control system for a vehicle powered by an engine Tsutomu Murakawa 1986-07-08