Inventor
NAGASAWA MASAHIKO
JP14 patents
⚠️ This page may combine multiple inventors who share the name “NAGASAWA MASAHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOKAI RUBBER IND LTD
7 patentsUS6315277B1Nov 13, 2001
Fluid-filled active vibration damping device including oscillating member oscillated by actuator controlled with pulse signal
TOKAI RUBBER IND LTD56 citations95
US6105943AAug 22, 2000
Active damping oscillator having non-connected shaft member and outer sleeve movable relative to each other by energization of coils
TOKAI RUBBER IND LTD58 citations95
US6017024AJan 25, 2000
Fluid-filled vibration damping device having pneumatically oscillated member partially defining auxiliary fluid chamber
TOKAI RUBBER IND LTD26 citations92
US6010120AJan 4, 2000
Fluid-filled vibration damping device having pneumatically oscillated members partially defining primary and auxiliary fluid chambers
TOKAI RUBBER IND LTD24 citations91
US5941512AAug 24, 1999
Vibration damper including mass member displaceable by fluid pressure change in working chamber
TOKAI RUBBER IND LTD7 citations73
US5386275AJan 31, 1995
Fluid-filled elastic mount having oscillating plate driven by electromagnetic means including magnet fixed to movable inner yoke member, and annular coil fixed to stationary outer yoke member
TOKAI RUBBER IND LTD8 citations73
US7216858B2May 15, 2007
Fluid-filled vibration damping device
TOKAI RUBBER IND LTD5 citations59
SUMITOMO RIKO CO LTD
4 patentsUS10352395B2Jul 16, 2019
Vibration-damping electromagnetic actuator, active fluid-filled vibration-damping device and active vibration-control device using the same
SUMITOMO RIKO CO LTD2 citations70
US10100897B2Oct 16, 2018
Vibration-damping electromagnetic actuator, active fluid-filled vibration-damping device and active vibration-damping device using the same
SUMITOMO RIKO CO LTD3 citations70
US9306440B2Apr 5, 2016
Electromagnetic actuator, and active vibration damper and fluid-filled active vibration damping device using the same
SUMITOMO RIKO CO LTD0 citations41
US9982743B2May 29, 2018
Vibration-damping electromagnetic actuator and manufacturing method thereof, active fluid-filled vibration-damping device and active vibration-damping device using vibration-damping electromagnetic actuator
SUMITOMO RIKO CO LTD0 citations39