Inventor · disambiguated record
Ryuichi Saito
Also filed as: SAITO RYUICHI
115 granted patents·18 pending applications·2,842 citations·filing 1986–2021
99Inventor score
Files withHITACHI LTD69SHINETSU CHEMICAL CO17MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8TOKUYAMA TAKESHI6SAITO RYUICHI4
Top patents by PatentIndex Score
133 records- 0199US7978471B2Electric power conversion apparatusHITACHI LTD·Filed 2009·Granted Jul 12, 2011·68 cites·15 claims
- 0297US8416574B2Electric power conversion apparatusTOKUYAMA TAKESHI·Filed 2011·Granted Apr 9, 2013·28 cites·9 claims
- 0397US8064234B2Power conversion apparatusTOKUYAMA TAKESHI·Filed 2008·Granted Nov 22, 2011·45 cites·12 claims
- 0497US7969735B2Power converterHITACHI LTD·Filed 2007·Granted Jun 28, 2011·48 cites·15 claims
- 0597US6661659B2Water cooled inverterHITACHI LTD·Filed 2002·Granted Dec 9, 2003·121 cites·12 claims
- 0697US6621701B2Water cooled inverterHITACHI LTD·Filed 2002·Granted Sep 16, 2003·104 cites·10 claims
- 0797US6594149B2Liquid cooled circuit deviceHITACHI LTD·Filed 2002·Granted Jul 15, 2003·99 cites·17 claims
- 0896US9137932B2Electric power conversion apparatusHITACHI LTD·Filed 2015·Granted Sep 15, 2015·12 cites·7 claims
- 0996US9042101B2Electric power conversion apparatusHITACHI LTD·Filed 2014·Granted May 26, 2015·16 cites·8 claims
- 1096US7978468B2Power converterHITACHI LTD·Filed 2010·Granted Jul 12, 2011·20 cites·7 claims
- 1196US7830689B2Power converterHITACHI LTD·Filed 2007·Granted Nov 9, 2010·50 cites·21 claims
- 1296US6588647B2Liquid cooled circuit device and a manufacturing method thereofHITACHI LTD·Filed 2002·Granted Jul 8, 2003·80 cites·2 claims
- 1395US4772927AThin film FET doped with diffusion inhibitorHITACHI LTD·Filed 1986·Granted Sep 20, 1988·171 cites·11 claims
- 1494US8917509B2Electric power conversion apparatusHITACHI LTD·Filed 2013·Granted Dec 23, 2014·11 cites·12 claims
- 1594US5307304ASemiconductor memory device and method of operation thereofHITACHI LTD·Filed 1991·Granted Apr 26, 1994·83 cites·12 claims
- 1693US10524398B2Electric power conversion apparatusHITACHI LTD·Filed 2017·Granted Dec 31, 2019·6 cites·7 claims
- 1793US7968925B2Power semiconductor module for inverter circuit systemHITACHI LTD·Filed 2010·Granted Jun 28, 2011·14 cites·8 claims
- 1893US7812443B2Power semiconductor module for inverter circuit systemHITACHI LTD·Filed 2008·Granted Oct 12, 2010·26 cites·20 claims
- 1992US7692923B2Power converterHITACHI LTD·Filed 2008·Granted Apr 6, 2010·25 cites·8 claims
- 2092US7638904B2Isolated bidirectional DC-DC converterHITACHI LTD·Filed 2005·Granted Dec 29, 2009·40 cites·13 claims
- 2191US8675364B2Power module and power conversion deviceTOKUYAMA TAKESHI·Filed 2010·Granted Mar 18, 2014·14 cites·10 claims
- 2291US8411441B2Power converterNAKATSU KINYA·Filed 2011·Granted Apr 2, 2013·9 cites·7 claims
- 2391US6978856B2Electrical apparatus, cooling system therefor, and electric vehicleHITACHI LTD·Filed 2003·Granted Dec 27, 2005·48 cites·16 claims
- 2491US5561440ALiquid crystal display device and driving method thereforHITACHI LTD·Filed 1991·Granted Oct 1, 1996·85 cites·29 claims
- 2589US8653652B2Semiconductor device, power semiconductor module and power conversion device equipped with power semiconductor moduleTOKUYAMA TAKESHI·Filed 2010·Granted Feb 18, 2014·12 cites·20 claims
- 2689US7235226B2Method for generating hydrogen gas utilizing activated aluminum fine particlesMURORAN INST TECH·Filed 2005·Granted Jun 26, 2007·15 cites·3 claims
- 2789US7090044B2Electrical apparatus, cooling system therefor, and electric vehicleHITACHI LTD·Filed 2004·Granted Aug 15, 2006·35 cites·13 claims
- 2889US6434008B1Semiconductor deviceHITACHI LTD·Filed 1998·Granted Aug 13, 2002·84 cites·11 claims
- 2989US6353258B1Semiconductor moduleHITACHI LTD·Filed 2000·Granted Mar 5, 2002·65 cites·44 claims
- 3089US5956231ASemiconductor device having power semiconductor elementsHITACHI LTD·Filed 1995·Granted Sep 21, 1999·85 cites·20 claims
- 3188US7983044B2Electrical apparatus, cooling system therefor, and electric vehicleHITACHI LTD·Filed 2010·Granted Jul 19, 2011·7 cites·4 claims
- 3288US7660122B2Electrical apparatus, cooling system therefor, and electric vehicleHITACHI LTD·Filed 2007·Granted Feb 9, 2010·12 cites·7 claims
- 3388US7252167B2Electrical apparatus, cooling system therefor, and electric vehicleHITACHI LTD·Filed 2006·Granted Aug 7, 2007·11 cites·10 claims
- 3487US8503209B2Power conversion apparatus and cooling structure thereforTOKUYAMA TAKESHI·Filed 2011·Granted Aug 6, 2013·6 cites·3 claims
- 3587US6288258B1Preparation of organohalosilanesSHINETSU CHEMICAL CO·Filed 2000·Granted Sep 11, 2001·20 cites·20 claims
- 3687US5629888ASemiconductor memory device and method of operation thereofHITACHI LTD·Filed 1994·Granted May 13, 1997·42 cites·21 claims
- 3786US9648791B2Electric power conversion apparatusHITACHI LTD·Filed 2015·Granted May 9, 2017·3 cites·7 claims
- 3886US5459655ANeutral-point clamped inverter device using semiconductor modulesHITACHI LTD·Filed 1992·Granted Oct 17, 1995·80 cites·5 claims
- 3985US5731970APower conversion device and semiconductor module suitable for use in the deviceHITACHI LTD·Filed 1995·Granted Mar 24, 1998·71 cites·9 claims
- 4084US10856450B2Power conversion apparatusHITACHI LTD·Filed 2019·Granted Dec 1, 2020·2 cites·6 claims
- 4184US8634220B2Power conversion apparatusHITACHI LTD·Filed 2013·Granted Jan 21, 2014·4 cites·4 claims
- 4284US6724313B2Fault detection systemHITACHI LTD·Filed 2002·Granted Apr 20, 2004·31 cites·1 claims
- 4384US6064358ALiquid crystal display device and driving method thereforHITACHI LTD·Filed 1996·Granted May 16, 2000·63 cites·37 claims
- 4483US5621243ASemiconductor device having thermal stress resistance structureHITACHI LTD·Filed 1994·Granted Apr 15, 1997·80 cites·32 claims
- 4583US4862240AComplementary semiconductor deviceHITACHI LTD·Filed 1987·Granted Aug 29, 1989·62 cites·21 claims
- 4682US10395899B2Method of manufacturing semiconductor device and semiconductor manufacturing apparatusTOSHIBA MEMORY CORP·Filed 2018·Granted Aug 27, 2019·2 cites·10 claims
- 4782US6331845B1Liquid crystal display device and driving method thereforHITACHI LTD·Filed 1999·Granted Dec 18, 2001·54 cites·14 claims
- 4882US5454977ASilacyclohexane compound, a method of preparing it and a liquid crystal composition containing itSHINETSU CHEMICAL CO·Filed 1994·Granted Oct 3, 1995·23 cites·5 claims
- 4982US4894801AStacked MOS transistor flip-flop memory cellHITACHI LTD·Filed 1987·Granted Jan 16, 1990·43 cites·26 claims
- 5080US9609789B2Power conversion apparatusHITACHI LTD·Filed 2014·Granted Mar 28, 2017·3 cites·9 claims
Showing the top 50 of 133 patent records by PatentIndex Score.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →