Patents/Inventors

Koichi Yamaka

HitachinakaJP7 patents

6 Patents

US125832752026
Shock Absorber
HITACHI ASTEMO, Ltd.
0 cites
US124889232025
Solenoid, Damping Force Adjustment Mechanism, and Damping Force Adjustable Shock Absorber
HITACHI ASTEMO, Ltd.
0 cites
US123057322025
Shock Absorber
HITACHI ASTEMO, Ltd.
0 cites
US121515332024
Cylinder Device
Hitachi Astemo, Ltd.
0 cites
US121158302024
Shock Absorber
HITACHI ASTEMO, Ltd.
0 cites
US120851412024
Shock Absorber
HITACHI ASTEMO, Ltd.
0 cites