P

Inventor

ISHIKAWA TSUYOSHI

JP124 patents
⚠️ This page may combine multiple inventors who share the name “ISHIKAWA TSUYOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ENPLAS CORP

23 patents
US5971559AOct 26, 1999

Surface light source device

ENPLAS CORP211 citations99
US5779338AJul 14, 1998

Surface light source device

ENPLAS CORP195 citations99
US5718497AFeb 17, 1998

Surface light source device

ENPLAS CORP144 citations99
US5600455AFeb 4, 1997

Prismatic member with coarsened portions or triangular prismatic and semi-circular prismatic members arranged on a flat light emitting surface

ENPLAS CORP231 citations99
US5584556ADec 17, 1996

Surface light source device

ENPLAS CORP325 citations99
US5575549ANov 19, 1996

Surface light source device

ENPLAS CORP157 citations99
US5967637AOct 19, 1999

Tapered light guide plate for surface light source device and method of making by injection molding via supplementary cavity

ENPLAS CORP90 citations98
US5921651AJul 13, 1999

Surface light source device of side light type having diffusing element with improved distribution pattern of light

ENPLAS CORP110 citations98
US5769522AJun 23, 1998

Surface light source device

ENPLAS CORP59 citations96
US5572411ANov 5, 1996

Surface light source device

ENPLAS CORP72 citations96
US5450292ASep 12, 1995

Surface light source device

ENPLAS CORP56 citations96
US5414599AMay 9, 1995

Surface light source device

ENPLAS CORP48 citations96
US5402324AMar 28, 1995

Surface illuminant device

ENPLAS CORP67 citations96
US5818555AOct 6, 1998

Surface light source device

ENPLAS CORP64 citations95
US6027221AFeb 22, 2000

Surface light source device of side light type and mold for light guide plate employed in the device

ENPLAS CORP27 citations93
US6478438B1Nov 12, 2002

Side light type surface light source device

ENPLAS CORP21 citations92
US6396634B1May 28, 2002

Surface light source device of side light type

ENPLAS CORP25 citations92
US5810464ASep 22, 1998

Surface light source device of side light type

ENPLAS CORP53 citations92
US5655827AAug 12, 1997

Surface light source device

ENPLAS CORP38 citations92
US5957561ASep 28, 1999

Surface light source device of side light type and display

ENPLAS CORP34 citations91
US6024463AFeb 15, 2000

Surface light source device of side light type with belt-like diffusible area

ENPLAS CORP17 citations83
US5951138ASep 14, 1999

Surface light source device of side light type

ENPLAS CORP12 citations74
US5772305AJun 30, 1998

Surface illuminant device

ENPLAS CORP12 citations74

ASAHI OPTICAL CO LTD

6 patents
US5629799AMay 13, 1997

Chromatic aberration correcting element and its application

ASAHI OPTICAL CO LTD79 citations97
US5257092AOct 26, 1993

Apparatus for measuring polarization and birefringence

ASAHI OPTICAL CO LTD57 citations96
US5914822AJun 22, 1999

Chromatic aberration correcting element and its application

ASAHI OPTICAL CO LTD19 citations93
US5652745AJul 29, 1997

Optical system using polarized light with prevention of effect of birefringence

ASAHI OPTICAL CO LTD24 citations93
US5584572ADec 17, 1996

Reflector used in a strobe device

ASAHI OPTICAL CO LTD13 citations74
US5572368ANov 5, 1996

Light projecting device with cylindrical lens

ASAHI OPTICAL CO LTD14 citations73

MITSUI MINING CO LTD

4 patents
US5791569AAug 11, 1998

Crushing apparatus

MITSUI MINING CO LTD29 citations93
US5577675ANov 26, 1996

Agitating pulverizer

MITSUI MINING CO LTD35 citations93
US5346147ASep 13, 1994

Crushing apparatus

MITSUI MINING CO LTD28 citations86
US5330112AJul 19, 1994

Crushing apparatus

MITSUI MINING CO LTD31 citations86

SONY CORP

4 patents
US10452128B2Oct 22, 2019

Information processing apparatus and information processing method

SONY CORP8 citations83
US11695908B2Jul 4, 2023

Information processing apparatus and information processing method

SONY CORP2 citations73
US11480787B2Oct 25, 2022

Information processing apparatus and information processing method

SONY CORP2 citations73
US11094097B2Aug 17, 2021

Information processing apparatus and information processing method

SONY CORP1 citations73

PENTAX CORP

2 patents
US7150862B2Dec 19, 2006

Method of manufacturing powder

PENTAX CORP11 citations81
US6815384B2Nov 9, 2004

Method for manufacturing sintered piece

PENTAX CORP9 citations74

ASHIZAWA FINETECH LTD

2 patents
US7588205B2Sep 15, 2009

Medium agitation mill

ASHIZAWA FINETECH LTD8 citations78
US7374116B2May 20, 2008

Circulation type media agitator mill

ASHIZAWA FINETECH LTD15 citations78

NITTO JUSHI KOGYO KABUSHIKI KA

1 patent
US6241358B1Jun 5, 2001

Tandem lighting panel

NITTO JUSHI KOGYO KABUSHIKI KA182 citations98

MIYAHARA SHINICHIRO

1 patent
US9136372B2Sep 15, 2015

Silicon carbide semiconductor device

MIYAHARA SHINICHIRO37 citations93

SONY GROUP CORP

1 patent
US11868517B2Jan 9, 2024

Information processing apparatus and information processing method

SONY GROUP CORP5 citations85

HITACHI LTD

1 patent
US7582901B2Sep 1, 2009

Semiconductor device comprising metal insulator metal (MIM) capacitor

HITACHI LTD12 citations84

UNIV KEIO

1 patent
US9261640B2Feb 16, 2016

Liquid crystal display apparatus

UNIV KEIO7 citations83

HOYA CORP

1 patent
US7563608B2Jul 21, 2009

Method for manufacturing a sintered compact for use as a cell culture base

HOYA CORP9 citations82

MIMURA TOMOHIRO

1 patent
US8575689B2Nov 5, 2013

Silicon carbide semiconductor device and manufacturing method of the same

MIMURA TOMOHIRO9 citations79

MITSUBISHI ELECTRIC CORP

1 patent
US6492586B2Dec 10, 2002

Space photovoltaic power generation system, power satellite, and control satellite

MITSUBISHI ELECTRIC CORP13 citations74

ISHIKAWA TSUYOSHI

1 patent
US8972486B2Mar 3, 2015

Terminal apparatus, processing system, processing method, and program

ISHIKAWA TSUYOSHI4 citations73

Showing the top 50 of 124 patents by PatentIndex Score.