P

Inventor

KANAI TAKASHI

JP53 patents
⚠️ This page may combine multiple inventors who share the name “KANAI TAKASHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HITACHI CONSTRUCTION MACHINERY

17 patents
US5203168AApr 20, 1993

Hydraulic driving circuit with motor displacement limitation control

HITACHI CONSTRUCTION MACHINERY81 citations95
US5535587AJul 16, 1996

Hydraulic drive system

HITACHI CONSTRUCTION MACHINERY23 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
US6408622B1Jun 25, 2002

Hydraulic drive device

HITACHI CONSTRUCTION MACHINERY45 citations91
US6192681B1Feb 27, 2001

Hydraulic drive apparatus

HITACHI CONSTRUCTION MACHINERY18 citations84
US6105367AAug 22, 2000

Hydraulic drive system

HITACHI CONSTRUCTION MACHINERY20 citations84
US6651428B2Nov 25, 2003

Hydraulic drive device

HITACHI CONSTRUCTION MACHINERY13 citations83
US6584770B2Jul 1, 2003

Hydraulic drive system

HITACHI CONSTRUCTION MACHINERY17 citations83
US6526747B2Mar 4, 2003

Hydraulic driving device

HITACHI CONSTRUCTION MACHINERY20 citations82
US4813447AMar 21, 1989

Flow control valve apparatus

HITACHI CONSTRUCTION MACHINERY23 citations79
US5251444AOct 12, 1993

Hydraulic drive system and valve apparatus

HITACHI CONSTRUCTION MACHINERY15 citations74
US6176126B1Jan 23, 2001

Engine speed control system for construction machine

HITACHI CONSTRUCTION MACHINERY8 citations73
US5003776AApr 2, 1991

Hydraulic drive system

HITACHI CONSTRUCTION MACHINERY11 citations73
US4846046AJul 11, 1989

Hydraulic drive circuit system

HITACHI CONSTRUCTION MACHINERY15 citations73
US6397591B1Jun 4, 2002

Hydraulic driving unit

HITACHI CONSTRUCTION MACHINERY10 citations72
US6772590B2Aug 10, 2004

Hydraulic driving device

HITACHI CONSTRUCTION MACHINERY6 citations63

NIDEC COPAL ELECTRONICS CORP

8 patents
US9689466B2Jun 27, 2017

Gear motor including reduction mechanism

NIDEC COPAL ELECTRONICS CORP1,024 citations99
US10233935B2Mar 19, 2019

Motor, and motor control system

NIDEC COPAL ELECTRONICS CORP2 citations73
US7628582B2Dec 8, 2009

Air blower

NIDEC COPAL ELECTRONICS CORP7 citations73
US10598215B2Mar 24, 2020

Electric motor having seizure-resistant dynamic pressure gas bearing

NIDEC COPAL ELECTRONICS CORP2 citations70
US11333564B2May 17, 2022

Strain sensor fixing device for a torque sensor to prevent sensor performance decrease

NIDEC COPAL ELECTRONICS CORP0 citations62
US11105693B2Aug 31, 2021

Torque sensor

NIDEC COPAL ELECTRONICS CORP1 citations62
US11293819B2Apr 5, 2022

Force sensor having a strain body

NIDEC COPAL ELECTRONICS CORP0 citations52
US10954961B2Mar 23, 2021

Blower device and blower system equipped with blower device

NIDEC COPAL ELECTRONICS CORP0 citations52

JANOME SEWING MACHINE CO LTD

7 patents
USD720372SDec 30, 2014

Sewing machine

JANOME SEWING MACHINE CO LTD8 citations84
USD787174SMay 23, 2017

Storage box

JANOME SEWING MACHINE CO LTD12 citations78
USD628606SDec 7, 2010

Sewing machine

JANOME SEWING MACHINE CO LTD7 citations74
USD804540SDec 5, 2017

Sewing machine

JANOME SEWING MACHINE CO LTD5 citations73
USD636414SApr 19, 2011

Pressing machine

JANOME SEWING MACHINE CO LTD2 citations63
USD579466SOct 28, 2008

Sewing machine

JANOME SEWING MACHINE CO LTD3 citations63
USD743451SNov 17, 2015

Sewing machine

JANOME SEWING MACHINE CO LTD2 citations60

SONY CORP

6 patents
US6222930B1Apr 24, 2001

Method of reproducing sound

SONY CORP21 citations92
US5021788AJun 4, 1991

Digital analog converter

SONY CORP25 citations89
US5003559AMar 26, 1991

Digital transmission system

SONY CORP20 citations80
US6266304B1Jul 24, 2001

Disc eccentricity measuring apparatus and method thereof and apparatus for recording and/or reproducing disc-shaped recording medium

SONY CORP12 citations74
US5343197AAug 30, 1994

Digital-to-analog converter

SONY CORP7 citations74
US6754352B2Jun 22, 2004

Sound field production apparatus

SONY CORP8 citations73

TORAY INDUSTRIES

2 patents
US6379552B1Apr 30, 2002

Method for resolving optical isomers

TORAY INDUSTRIES14 citations80
US4962245AOct 9, 1990

Process for preparing halogenated benzene derivatives

TORAY INDUSTRIES10 citations74

ANRITSU INFIVIS CO LTD

2 patents
US10718725B2Jul 21, 2020

X-ray inspection apparatus and correction method for X-ray inspection apparatus

ANRITSU INFIVIS CO LTD4 citations70
US10292251B2May 14, 2019

X-ray inspection device

ANRITSU INFIVIS CO LTD1 citations61

SANKYO SEIKI SEISAKUSHO KK

2 patents
US5072321ADec 10, 1991

Apparatus for providing uniform attractive force to a magnetic disk hub in a magnetic disk drive

SANKYO SEIKI SEISAKUSHO KK9 citations69
US5161075ANov 3, 1992

Hub table for a magnetic disk drive device

SANKYO SEIKI SEISAKUSHO KK5 citations60

SAKAI KAZUKI

1 patent
US8798274B2Aug 5, 2014

Acoustic apparatus, acoustic adjustment method and program

SAKAI KAZUKI12 citations82

TACHIKAWA SPRING CO

1 patent
US4568124AFeb 4, 1986

Vehicle seat

TACHIKAWA SPRING CO24 citations82

YAJIMA MASAKI

1 patent
US9039073B2May 26, 2015

Method of manufacturing vehicle body side structure and vehicle body side structure

YAJIMA MASAKI7 citations75

SHINETSU POLYMER CO

1 patent
US6451866B1Sep 17, 2002

Spongy rubber body

SHINETSU POLYMER CO6 citations66

SHINANO KENSHI CO

1 patent
US7453222B2Nov 18, 2008

Sun roof drive device

SHINANO KENSHI CO4 citations59

ANRITSU CORP

1 patent
US12590907B2Mar 31, 2026

X-ray inspection apparatus

ANRITSU CORP0 citations52

Showing the top 50 of 53 patents by PatentIndex Score.