Inventor
HAMASAKI YOSHIAKI
JP13 patents
⚠️ This page may combine multiple inventors who share the name “HAMASAKI YOSHIAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KOYO SEIKO CO
9 patentsUS6004119ADec 21, 1999
Motor-driven hydraulic gear pump having a noise damper
KOYO SEIKO CO35 citations90
US5356535AOct 18, 1994
Oil tank
KOYO SEIKO CO31 citations89
US4850447AJul 25, 1989
Power transmission apparatus for a vehicle
KOYO SEIKO CO27 citations88
US6287090B1Sep 11, 2001
Electric pump apparatus
KOYO SEIKO CO18 citations83
US5074825ADec 24, 1991
Hydraulic transmission coupling apparatus
KOYO SEIKO CO14 citations73
US6233930B1May 22, 2001
Power steering device
KOYO SEIKO CO4 citations62
US5280868AJan 25, 1994
Reservoir supporting structure
KOYO SEIKO CO6 citations62
US6048187AApr 11, 2000
Gear pump
KOYO SEIKO CO5 citations61
US5220939AJun 22, 1993
Flow control apparatus
KOYO SEIKO CO6 citations61