P

Inventor

ITO RYOICHI

JP60 patents
⚠️ This page may combine multiple inventors who share the name “ITO RYOICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

JAPAN DISPLAY INC

11 patents
US10170727B2Jan 1, 2019

Display device

JAPAN DISPLAY INC15 citations94
US9660003B2May 23, 2017

Display device

JAPAN DISPLAY INC28 citations94
US11669213B2Jun 6, 2023

Semiconductor device

JAPAN DISPLAY INC2 citations73
US10804488B2Oct 13, 2020

Display device

JAPAN DISPLAY INC3 citations73
US10020355B2Jul 10, 2018

Photosensor and display device having the same

JAPAN DISPLAY INC2 citations73
US10008553B2Jun 26, 2018

Display device

JAPAN DISPLAY INC2 citations73
US9692014B2Jun 27, 2017

Display device

JAPAN DISPLAY INC2 citations73
US9665194B2May 30, 2017

Display device and method for manufacturing the same

JAPAN DISPLAY INC4 citations73
US9666829B2May 30, 2017

Organic electroluminescent display device

JAPAN DISPLAY INC2 citations73
US9634069B2Apr 25, 2017

Display device

JAPAN DISPLAY INC2 citations73
US9343513B2May 17, 2016

Organic electroluminescent display device having an input function

JAPAN DISPLAY INC4 citations73

HITACHI LTD

6 patents
US4298974ANov 3, 1981

Optical head for a videodisc player/recorder

HITACHI LTD52 citations92
US4270134AMay 26, 1981

Light-emitting semiconductor device

HITACHI LTD33 citations92
US4142160AFeb 27, 1979

Hetero-structure injection laser

HITACHI LTD30 citations82
US4174491ANov 13, 1979

Mount for a light emitting device

HITACHI LTD29 citations81
US4315226AFeb 9, 1982

Semiconductor laser device

HITACHI LTD17 citations72
US4329658AMay 11, 1982

Semiconductor laser device

HITACHI LTD3 citations62

KUBOTA LTD

5 patents
US4907546AMar 13, 1990

Air-cooled type cooling system for engine working machine assembly

KUBOTA LTD122 citations96
US4856470AAug 15, 1989

Engine working machine assembly with soundproof cover

KUBOTA LTD35 citations93
US5007383AApr 16, 1991

Water-cooling system for a water-cooled horizontal cylinder engine

KUBOTA LTD9 citations73
US4883024ANov 28, 1989

Water-cooling system for a water-cooled horizontal cylinder engine

KUBOTA LTD13 citations73
US4487180ADec 11, 1984

Engine with a rotary-speed control apparatus and an emergency halt apparatus

KUBOTA LTD7 citations58

RICOH KK

4 patents
US6258502B1Jul 10, 2001

Two-component developer, two-component developer holding container, and electrophotographic image formation apparatus equipped with the container

RICOH KK73 citations96
US6183926B1Feb 6, 2001

Toner and two-component developer for electrophotographic process and image formation method and image formation apparatus using the toner

RICOH KK73 citations95
US6503681B2Jan 7, 2003

Process for the production of toner for developing electrostatic image

RICOH KK34 citations90
US6368765B2Apr 9, 2002

Method of producing toner for developing latent electrostatic images

RICOH KK40 citations90

HANAFUSA TATSUYA

4 patents
US8132439B2Mar 13, 2012

Bottle can member, bottle, and thread forming device

HANAFUSA TATSUYA33 citations95
US8740001B2Jun 3, 2014

Bottle can member, bottle, and thread forming device

HANAFUSA TATSUYA18 citations92
US8091402B2Jan 10, 2012

Method of manufacturing bottle can

HANAFUSA TATSUYA35 citations92
US8499601B2Aug 6, 2013

Bottle can member, bottle, and thread forming device

HANAFUSA TATSUYA8 citations83

UNIVERSAL CAN CORP

3 patents
US7798357B2Sep 21, 2010

Bottle can member, bottle, and thread forming device

UNIVERSAL CAN CORP89 citations98
US8037734B2Oct 18, 2011

Bottle can member, bottle, and thread forming device

UNIVERSAL CAN CORP36 citations95
US7555927B2Jul 7, 2009

Bottle-shaped can manufacturing method and bottle-shaped can

UNIVERSAL CAN CORP37 citations92

SONY CORP

2 patents
US7999259B2Aug 16, 2011

Display device having a photodiode whose p region has an edge width different than that of the n region

SONY CORP10 citations83
US7787082B2Aug 31, 2010

Photosensor and display device

SONY CORP13 citations83

KUREHA CHEMICAL IND CO LTD

2 patents
US3933772AJan 20, 1976

Dielectric polyolefin compositions

KUREHA CHEMICAL IND CO LTD20 citations80
US3985938AOct 12, 1976

Dielectric ethylene copolymer compositions containing alkylfluoranthene

KUREHA CHEMICAL IND CO LTD2 citations60

YAMADA YASUHIRO

2 patents
US9312421B2Apr 12, 2016

Photoelectric conversion element and photoelectric converter

YAMADA YASUHIRO3 citations73
US8952477B2Feb 10, 2015

Photoelectric conversion element having a plurality of layered semiconductors and method for manufacturing same

YAMADA YASUHIRO4 citations73

YAMAHA MOTOR CO LTD

1 patent
US5797778AAug 25, 1998

Mounting arrangement for marine propulsion engine

YAMAHA MOTOR CO LTD34 citations92

FURUNO ELECTRIC CO

1 patent
US5582795ADec 10, 1996

Hold-transfer system for extraction containers

FURUNO ELECTRIC CO22 citations92

SANSHIN KOGYO KK

1 patent
US5072629ADec 17, 1991

Shift assisting system

SANSHIN KOGYO KK23 citations92

KUBATO LTD

1 patent
US4779905AOct 25, 1988

Forcedly air-cooled engine generator of vertical shaft type

KUBATO LTD69 citations89

DAISEN IND

1 patent
US4206166AJun 3, 1980

Process of producing polyolefin foam moldings

DAISEN IND32 citations89

HITACHI CABLE

1 patent
US4370517AJan 25, 1983

Polyolefin compositions for electrical insulation

HITACHI CABLE31 citations87

TAKAMA DAISUKE

1 patent
US8125580B2Feb 28, 2012

Liquid crystal display apparatus

TAKAMA DAISUKE15 citations83

MITSUBISHI PETROCHEMICAL CO

1 patent
US4680318AJul 14, 1987

Foaming resin composition

MITSUBISHI PETROCHEMICAL CO11 citations74

MAGNOLIA WHITE CORP

1 patent
US12455664B2Oct 28, 2025

Semiconductor device

MAGNOLIA WHITE CORP0 citations63

PANASONIC CORP

1 patent
US7605049B2Oct 20, 2009

Optical semiconductor device and manufacturing method for same

PANASONIC CORP4 citations61

ITO RYOICHI

1 patent
US4557432ADec 10, 1985

Stroke apparatus

ITO RYOICHI4 citations57

Showing the top 50 of 60 patents by PatentIndex Score.