P

Inventor

YAMAGUCHI MASAO

JP169 patents
⚠️ This page may combine multiple inventors who share the name “YAMAGUCHI MASAO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

TOSHIBA KK

14 patents
US5774249AJun 30, 1998

Optical exposer unit

TOSHIBA KK80 citations96
US5751462AMay 12, 1998

Multi-beam exposure unit

TOSHIBA KK54 citations96
US6347003B1Feb 12, 2002

Multi-beam laser exposer unit

TOSHIBA KK18 citations93
US5963354AOct 5, 1999

Multi-beam laser exposer unit

TOSHIBA KK19 citations93
US5801746ASep 1, 1998

Image forming apparatus having a plurality of mirror members each capable of moving in a parallel or rotary direction

TOSHIBA KK25 citations93
US5436700AJul 25, 1995

Image forming apparatus with removable process unit and developing device thereof

TOSHIBA KK31 citations93
US6501585B2Dec 31, 2002

Multi-beam exposure apparatus

TOSHIBA KK22 citations92
US6104519AAug 15, 2000

Multi-beam exposure unit

TOSHIBA KK20 citations92
US6100912AAug 8, 2000

Multi-beam exposer unit

TOSHIBA KK29 citations92
US6061162AMay 9, 2000

Multi-beam exposure unit

TOSHIBA KK20 citations92
US6055084AApr 25, 2000

Multi-beam exposure unit

TOSHIBA KK17 citations92
US5995268ANov 30, 1999

Multi-beam exposure unit

TOSHIBA KK37 citations92
US5850306ADec 15, 1998

Optical scanner

TOSHIBA KK23 citations92
US5808772ASep 15, 1998

Optical scanner and image forming apparatus utilizing optical scanner

TOSHIBA KK18 citations92

TOKYO ELECTRON LTD

6 patents
US5517126AMay 14, 1996

Probe apparatus

TOKYO ELECTRON LTD204 citations99
US5539676AJul 23, 1996

Method of identifying probe position and probing method in prober

TOKYO ELECTRON LTD112 citations98
US5521522AMay 28, 1996

Probe apparatus for testing multiple integrated circuit dies

TOKYO ELECTRON LTD174 citations96
US5422579AJun 6, 1995

Method of identifying probe position and probing method in prober

TOKYO ELECTRON LTD54 citations96
US5614837AMar 25, 1997

Probe apparatus and burn-in apparatus

TOKYO ELECTRON LTD45 citations95
US5510724AApr 23, 1996

Probe apparatus and burn-in apparatus

TOKYO ELECTRON LTD83 citations95

TDK CORP

5 patents
US6178974B1Jan 30, 2001

Cleaning apparatus and method

TDK CORP48 citations95
US6254688B1Jul 3, 2001

Cleaning method

TDK CORP35 citations92
US6085764AJul 11, 2000

Cleaning apparatus and method

TDK CORP16 citations92
US6040959AMar 21, 2000

Slider with blunt edges

TDK CORP36 citations92
US5993290ANov 30, 1999

Magnetic head grinding method and apparatus

TDK CORP19 citations92

HIROSE ELECTRIC CO LTD

4 patents
US5234357AAug 10, 1993

Lock mechanism for electrical connector

HIROSE ELECTRIC CO LTD59 citations96
US4906208AMar 6, 1990

Electrical connector

HIROSE ELECTRIC CO LTD28 citations93
US4753608AJun 28, 1988

Electrical connector and its termination method

HIROSE ELECTRIC CO LTD27 citations93
US4718866AJan 12, 1988

Electrical connector shield case and method of making same

HIROSE ELECTRIC CO LTD45 citations93

STEC INC

3 patents
US5129418AJul 14, 1992

Mass flow controller with supplemental condition sensors

STEC INC143 citations96
US5141021AAug 25, 1992

Mass flow meter and mass flow controller

STEC INC54 citations94
US5048332ASep 17, 1991

Flow meter for measuring fluid flow with multiple temperature sensors

STEC INC28 citations91

ENPLAS CORP

2 patents
US7348723B2Mar 25, 2008

Emission device, surface light source device, display and light flux control member

ENPLAS CORP171 citations99
US7866844B2Jan 11, 2011

Emission device, surface light source device and display

ENPLAS CORP20 citations93

YAMAGUCHI MASAO

2 patents
US9030167B2May 12, 2015

Power source apparatus

YAMAGUCHI MASAO30 citations93
US8227969B2Jul 24, 2012

Light emitting apparatus, surface light source apparatus and display apparatus

YAMAGUCHI MASAO19 citations92

TOSHIBA TEC KK

2 patents
US6888655B2May 3, 2005

Optical beam scanning device

TOSHIBA TEC KK30 citations93
US6381078B1Apr 30, 2002

Optical device

TOSHIBA TEC KK24 citations93

NIPPON SODA CO

2 patents
US5948917ASep 7, 1999

3-(isoxazol-5-yl)-substituted benzoic acid derivative and method for production thereof

NIPPON SODA CO47 citations92
US5939360AAug 17, 1999

Compound and herbicidal composition for weed control

NIPPON SODA CO27 citations92

SHARP KK

1 patent
US7798679B2Sep 21, 2010

Light emitting device and lighting device having the same

SHARP KK62 citations97

MATSUSHITA ELECTRIC WORKS LTD

1 patent
US7084435B2Aug 1, 2006

Light emitting device using LED

MATSUSHITA ELECTRIC WORKS LTD107 citations97

SANYO ELECTRIC CO

1 patent
US7408325B2Aug 5, 2008

Battery charging method

SANYO ELECTRIC CO36 citations93

OLYMPUS CORP

1 patent
US7208692B2Apr 24, 2007

Operating switch mechanism

OLYMPUS CORP30 citations93

KAWASAKI STEEL CO

1 patent
US6454315B1Sep 24, 2002

Oil well pipe screw joint, and threading method and apparatus therefor

KAWASAKI STEEL CO29 citations93

ABE YOSHIYUKI

1 patent
US9544694B2Jan 10, 2017

Piezoelectric element, piezoelectric vibration module, and methods of manufacturing the same

ABE YOSHIYUKI30 citations92

TOKUYAMA CORP

1 patent
US6878853B2Apr 12, 2005

Process for preparing dihalogenated adamantanes

TOKUYAMA CORP27 citations92

HORIBA STEC CO LTD

1 patent
US8356623B2Jan 22, 2013

Mass flow meter and mass flow controller

HORIBA STEC CO LTD59 citations91

TOKYO MAGNETIC PRINTING

1 patent
US6444132B1Sep 3, 2002

Free abrasive slurry compositions

TOKYO MAGNETIC PRINTING20 citations91

OLYMPUS OPTICAL CO

1 patent
US5980294ANov 9, 1999

IC card loading device

OLYMPUS OPTICAL CO26 citations91

Showing the top 50 of 169 patents by PatentIndex Score.