Inventor
OCHIAI MASAMI
JP33 patents
⚠️ This page may combine multiple inventors who share the name “OCHIAI MASAMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI CONSTRUCTION MACHINERY
20 patentsUS6055851AMay 2, 2000
Apparatus for diagnosing failure of hydraulic pump for work machine
HITACHI CONSTRUCTION MACHINERY86 citations96
US5442912AAug 22, 1995
Hydraulic recovery device
HITACHI CONSTRUCTION MACHINERY34 citations93
US5421155AJun 6, 1995
Hydraulic drive system for hydraulic working machines
HITACHI CONSTRUCTION MACHINERY34 citations93
US5433076AJul 18, 1995
Hydraulic control valve apparatus and hydraulic drive system
HITACHI CONSTRUCTION MACHINERY27 citations92
US5048294ASep 17, 1991
Safety device for hydraulic closed circuit
HITACHI CONSTRUCTION MACHINERY47 citations92
US4919390AApr 24, 1990
Solenoid operated valve apparatus
HITACHI CONSTRUCTION MACHINERY42 citations92
US6244048B1Jun 12, 2001
Hydraulique drive device
HITACHI CONSTRUCTION MACHINERY37 citations91
US5873245AFeb 23, 1999
Hydraulic drive system
HITACHI CONSTRUCTION MACHINERY39 citations91
US5460001AOct 24, 1995
Flow control system
HITACHI CONSTRUCTION MACHINERY27 citations91
US6644629B1Nov 11, 2003
Overwinding prevention device for winch
HITACHI CONSTRUCTION MACHINERY30 citations89
US6339929B1Jan 22, 2002
Swivel control apparatus
HITACHI CONSTRUCTION MACHINERY46 citations89
US7979182B2Jul 12, 2011
Swing drive system for construction machine
HITACHI CONSTRUCTION MACHINERY18 citations84
US7500360B2Mar 10, 2009
Hydraulic driving system of construction machinery
HITACHI CONSTRUCTION MACHINERY20 citations82
US4813447AMar 21, 1989
Flow control valve apparatus
HITACHI CONSTRUCTION MACHINERY23 citations79
US5392539AFeb 28, 1995
Hydraulic drive system for construction machine
HITACHI CONSTRUCTION MACHINERY12 citations74
US5251444AOct 12, 1993
Hydraulic drive system and valve apparatus
HITACHI CONSTRUCTION MACHINERY15 citations74
US5003776AApr 2, 1991
Hydraulic drive system
HITACHI CONSTRUCTION MACHINERY11 citations73
US4846046AJul 11, 1989
Hydraulic drive circuit system
HITACHI CONSTRUCTION MACHINERY15 citations73
US7175155B2Feb 13, 2007
Control valve apparatus and pressure circuit
HITACHI CONSTRUCTION MACHINERY7 citations72
US6823289B2Nov 23, 2004
Pump trouble diagnosing device for hydraulic drive device and display device of the diagnosing device
HITACHI CONSTRUCTION MACHINERY8 citations68
HITACHI CHEMICAL CO LTD
4 patentsUS8351752B2Jan 8, 2013
Flexible optical waveguide, method for manufacturing such flexible optical waveguide, and optical module
HITACHI CHEMICAL CO LTD13 citations84
US7751678B2Jul 6, 2010
Resin composition for optical material, resin film for optical material and optical waveguide using same
HITACHI CHEMICAL CO LTD9 citations84
US7660503B2Feb 9, 2010
Flexible optical waveguide and optical module
HITACHI CHEMICAL CO LTD2 citations63
US8383695B2Feb 26, 2013
Phenoxy resin for optical material, resin composition for optical material, resin film for optical material and optical waveguide using those
HITACHI CHEMICAL CO LTD0 citations42
MAKINO TATSUYA
2 patentsUS8787723B2Jul 22, 2014
Resin composition for forming optical waveguide, resin film for forming optical waveguide, and optical waveguide
MAKINO TATSUYA6 citations71
US8463099B2Jun 11, 2013
Resin composition for optical material, resin film for optical material, and optical waveguide using them
MAKINO TATSUYA1 citations50