Inventor

KOYAMA HIRONORI

JP21 patents

⚠️ This page may combine multiple inventors who share the name “KOYAMA HIRONORI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

KOYAMA HIRONORI

SUMITOMO RIKO CO LTD

Vibration-damping electromagnetic actuator, active fluid-filled vibration-damping device and active vibration-control device using the same

Vibration-damping electromagnetic actuator, active fluid-filled vibration-damping device and active vibration-damping device using the same

Electromagnetic actuator

Electromagnetic actuator, and active vibration damper and fluid-filled active vibration damping device using the same

Vibration-damping electromagnetic actuator and manufacturing method thereof, active fluid-filled vibration-damping device and active vibration-damping device using vibration-damping electromagnetic actuator

Strut mount and suspension mechanism using the same

TOKAI RUBBER IND LTD

Fluid-filled type vibration-damping device

Fluid-filled type vibration-damping device

Fluid filled type vibration damping device

Fluid-filled vibration damping device

Fluid filled vibration damping device

KOYAMA HIRONORI

Fluid-filled type vibration damping device

Fluid-filled type active vibration damping device

Fluid-filled type vibration damping device

Fluid-filled type vibration damping device and manufacturing method thereof

HASEGAWA KOICHI

Active vibration damper and method of manufacturing active vibration damper

Fluid filled vibration damping device and electric actuator for use in the same

URAYAMA ATSUSHI

Active antivibration device and manufacturing method for the same

MURAMATSU ATSUSHI

Adaptive controller

MURAOKA MUTSUMI

Fluid-filled type active vibration damping device

YACHIYO IND CO LTD

Fuel inlet