Inventor · disambiguated record
Masao Yamaguchi
Also filed as: YAMAGUCHI MASAO
169 granted patents·31 pending applications·3,300 citations·filing 1978–2023
99Inventor score
Top patents by PatentIndex Score
200 records- 0199US7348723B2Emission device, surface light source device, display and light flux control memberENPLAS CORP·Filed 2005·Granted Mar 25, 2008·171 cites·18 claims
- 0296US8227969B2Light emitting apparatus, surface light source apparatus and display apparatusYAMAGUCHI MASAO·Filed 2010·Granted Jul 24, 2012·19 cites·12 claims
- 0396US7798679B2Light emitting device and lighting device having the sameSHARP KK·Filed 2008·Granted Sep 21, 2010·62 cites·7 claims
- 0496US5517126AProbe apparatusTOKYO ELECTRON LTD·Filed 1993·Granted May 14, 1996·204 cites·11 claims
- 0594US9544694B2Piezoelectric element, piezoelectric vibration module, and methods of manufacturing the sameABE YOSHIYUKI·Filed 2012·Granted Jan 10, 2017·30 cites·43 claims
- 0694US7208692B2Operating switch mechanismOLYMPUS CORP·Filed 2005·Granted Apr 24, 2007·30 cites·5 claims
- 0794US7084435B2Light emitting device using LEDMATSUSHITA ELECTRIC WORKS LTD·Filed 2003·Granted Aug 1, 2006·107 cites·20 claims
- 0894US5539676AMethod of identifying probe position and probing method in proberTOKYO ELECTRON LTD·Filed 1994·Granted Jul 23, 1996·112 cites·6 claims
- 0993US7991317B2Automatic job template generating apparatus and automatic job template generation methodTOSHIBA KK·Filed 2007·Granted Aug 2, 2011·17 cites·18 claims
- 1093US7919032B2Process for producing composite of aluminum material and synthetic resin moldingCORONA INTERNAT CORP·Filed 2010·Granted Apr 5, 2011·28 cites·15 claims
- 1192US9030167B2Power source apparatusYAMAGUCHI MASAO·Filed 2011·Granted May 12, 2015·30 cites·14 claims
- 1292US8356623B2Mass flow meter and mass flow controllerHORIBA STEC CO LTD·Filed 2009·Granted Jan 22, 2013·59 cites·6 claims
- 1392US6878853B2Process for preparing dihalogenated adamantanesTOKUYAMA CORP·Filed 2002·Granted Apr 12, 2005·27 cites·5 claims
- 1492US5510724AProbe apparatus and burn-in apparatusTOKYO ELECTRON LTD·Filed 1994·Granted Apr 23, 1996·83 cites·9 claims
- 1592US5129418AMass flow controller with supplemental condition sensorsSTEC INC·Filed 1990·Granted Jul 14, 1992·143 cites·2 claims
- 1691US9546773B2Surface light source apparatusENPLAS CORP·Filed 2016·Granted Jan 17, 2017·3 cites·11 claims
- 1791US8251547B2Emission device, surface light source device and displayYAMAGUCHI MASAO·Filed 2008·Granted Aug 28, 2012·20 cites·19 claims
- 1891US6178974B1Cleaning apparatus and methodTDK CORP·Filed 2000·Granted Jan 30, 2001·48 cites·7 claims
- 1990US5521522AProbe apparatus for testing multiple integrated circuit diesTOKYO ELECTRON LTD·Filed 1993·Granted May 28, 1996·174 cites·14 claims
- 2089US7866844B2Emission device, surface light source device and displayENPLAS CORP·Filed 2009·Granted Jan 11, 2011·20 cites·18 claims
- 2189US5751462AMulti-beam exposure unitTOSHIBA KK·Filed 1997·Granted May 12, 1998·54 cites·2 claims
- 2288US7931939B2Dyeing method of aluminum-based member, and aluminum-based memberCORONA KOGYO CORP·Filed 2008·Granted Apr 26, 2011·9 cites·8 claims
- 2388US5948917A3-(isoxazol-5-yl)-substituted benzoic acid derivative and method for production thereofNIPPON SODA CO·Filed 1997·Granted Sep 7, 1999·47 cites·15 claims
- 2487US5774249AOptical exposer unitTOSHIBA KK·Filed 1996·Granted Jun 30, 1998·80 cites·44 claims
- 2587US5234357ALock mechanism for electrical connectorHIROSE ELECTRIC CO LTD·Filed 1992·Granted Aug 10, 1993·59 cites·2 claims
- 2686US4718866AElectrical connector shield case and method of making sameHIROSE ELECTRIC CO LTD·Filed 1986·Granted Jan 12, 1988·45 cites·6 claims
- 2785US12275000B2Method of producing catalyst or adsorbent carrier, and catalyst or adsorbent carrierAPS JAPAN CO LTD·Filed 2023·Granted Apr 15, 2025·0 cites·4 claims
- 2885US9093864B2Assembled cell control system and power supply system comprising sameSANYO ELECTRIC CO·Filed 2013·Granted Jul 28, 2015·12 cites·7 claims
- 2985US9086517B2Light flux controlling member, light emitting apparatus, surface light source apparatus and display apparatusENPLAS CORP·Filed 2012·Granted Jul 21, 2015·4 cites·12 claims
- 3085US7700800B2Method for producing fluorine-containing alkyl (meth)acrylateTOKUYAMA CORP·Filed 2006·Granted Apr 20, 2010·5 cites·5 claims
- 3185US6888655B2Optical beam scanning deviceTOSHIBA TEC KK·Filed 2004·Granted May 3, 2005·30 cites·16 claims
- 3285US5436700AImage forming apparatus with removable process unit and developing device thereofTOSHIBA KK·Filed 1993·Granted Jul 25, 1995·31 cites·13 claims
- 3384US4817003AApparatus for detecting and indicating the balance of a rotary body in a machine toolNAGASE IRON WORKS CO LTD·Filed 1987·Granted Mar 28, 1989·41 cites·13 claims
- 3483US9837811B2Power source apparatus formed by combining a plurality of modulesYAMAGUCHI MASAO·Filed 2011·Granted Dec 5, 2017·12 cites·10 claims
- 3583US8596829B2Light flux controlling member, light emitting apparatus, surface light source apparatus and display apparatusYAMAGUCHI MASAO·Filed 2010·Granted Dec 3, 2013·6 cites·11 claims
- 3683US8487526B2Light emitting apparatus, surface light source apparatus and display apparatusYAMAGUCHI MASAO·Filed 2012·Granted Jul 16, 2013·4 cites·12 claims
- 3783US6497611B2Method of polishing a magnetic head sliderTDK CORP·Filed 2001·Granted Dec 24, 2002·21 cites·16 claims
- 3883US6383239B1Free abrasive slurry composition and a grinding method using the sameTOKYO MAGNETIC PRINTING·Filed 2000·Granted May 7, 2002·18 cites·11 claims
- 3982US6381078B1Optical deviceTOSHIBA TEC KK·Filed 2000·Granted Apr 30, 2002·24 cites·23 claims
- 4082US5939360ACompound and herbicidal composition for weed controlNIPPON SODA CO·Filed 1998·Granted Aug 17, 1999·27 cites·4 claims
- 4181US10503179B2Flow rate control apparatus and program recording medium having recorded therein program for flow rate control apparatusHORIBA STEC CO LTD·Filed 2017·Granted Dec 10, 2019·4 cites·10 claims
- 4281US6040959ASlider with blunt edgesTDK CORP·Filed 1998·Granted Mar 21, 2000·36 cites·19 claims
- 4381US5614837AProbe apparatus and burn-in apparatusTOKYO ELECTRON LTD·Filed 1995·Granted Mar 25, 1997·45 cites·6 claims
- 4480US5301077AThin film magnetic headTDK CORP·Filed 1992·Granted Apr 5, 1994·35 cites·34 claims
- 4580US5141021AMass flow meter and mass flow controllerSTEC INC·Filed 1991·Granted Aug 25, 1992·54 cites·6 claims
- 4677US9347643B2Light flux controlling apparatusENPLAS CORP·Filed 2013·Granted May 24, 2016·2 cites·13 claims
- 4777US8358099B2Modular electric power system with a renewable energy power generating apparatusSANYO ELECTRIC CO·Filed 2011·Granted Jan 22, 2013·6 cites·9 claims
- 4877US7408325B2Battery charging methodSANYO ELECTRIC CO·Filed 2004·Granted Aug 5, 2008·36 cites·10 claims
- 4977US5422579AMethod of identifying probe position and probing method in proberTOKYO ELECTRON LTD·Filed 1994·Granted Jun 6, 1995·54 cites·9 claims
- 5076US7841577B2Composite of aluminum material and synthetic resin molding and process for producing the sameCORONA INTERNAT CORP·Filed 2003·Granted Nov 30, 2010·14 cites·20 claims
Showing the top 50 of 200 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →