Inventor · disambiguated record
Keiichi Shimizu
Also filed as: OSADA TAKESHI · SHIMIZU KEIICHI
112 granted patents·21 pending applications·1,677 citations·filing 1979–2020
99Inventor score
Files withTOSHIBA LIGHTING & TECHNOLOGY35TOYO KOHAN CO LTD13SHIMIZU KEIICHI11OMRON TATEISI ELECTRONICS CO10MITSUBISHI ELECTRIC CORP9
Top patents by PatentIndex Score
133 records- 0198US8354804B2Power supply device and lighting equipmentTOSHIBA LIGHTING & TECHNOLOGY·Filed 2010·Granted Jan 15, 2013·59 cites·3 claims
- 0296USD656262SRecess lighting fixtureYOSHINOBU MASAYUKI·Filed 2010·Granted Mar 20, 2012·121 cites·1 claims
- 0394US8042973B2Lighting apparatusTOSHIBA LIGHTING & TECHNOLOGY·Filed 2010·Granted Oct 25, 2011·14 cites·3 claims
- 0493US7952295B2Illuminating deviceTOSHIBA LIGHTING & TECHNOLOGY·Filed 2008·Granted May 31, 2011·17 cites·3 claims
- 0592US8057072B2Light-emitting module and illumination apparatusTAKENAKA ERIKA·Filed 2009·Granted Nov 15, 2011·70 cites·14 claims
- 0691US6987771B2Route optimization method and agent apparatusMITSUBISHI ELECTRIC CORP·Filed 2001·Granted Jan 17, 2006·72 cites·17 claims
- 0790US8430535B2Socket device, lamp device and lighting deviceWATANABE SATOSHI·Filed 2011·Granted Apr 30, 2013·11 cites·6 claims
- 0890US8197086B2Lighting fixtureWATANABE HIROAKI·Filed 2009·Granted Jun 12, 2012·43 cites·6 claims
- 0990USD610289SRecessed lighting fixtureTOSHIBA LIGHTING & TECHNOLOGY·Filed 2008·Granted Feb 16, 2010·44 cites·1 claims
- 1089US8613529B2Lighting fixtureWATANABE SATOSHI·Filed 2009·Granted Dec 24, 2013·23 cites·6 claims
- 1188US5951145ALighting apparatusTOSHIBA LIGHTING & TECHNOLOGY·Filed 1997·Granted Sep 14, 1999·78 cites·11 claims
- 1286USD502284SReflector for lighting deviceTOSHIBA LIGHTING & TECHNOLOGY·Filed 2003·Granted Feb 22, 2005·31 cites·1 claims
- 1385US6512610B1Device and method for testing of multi-branch optical networkANDO ELECTRIC·Filed 1999·Granted Jan 28, 2003·53 cites·12 claims
- 1484US8567990B2Light emitting diode (LED) bulbBETSUDA NOBUHIKO·Filed 2012·Granted Oct 29, 2013·7 cites·10 claims
- 1584US7211970B2Discharge lamp lighting device and lighting unitTOSHIBA LIGHTING & TECHNOLOGY·Filed 2005·Granted May 1, 2007·11 cites·7 claims
- 1684US6697741B2Method and system for evaluating and monitoring hydraulic pump noise levelsHONDA MOTOR CO LTD·Filed 2002·Granted Feb 24, 2004·41 cites·7 claims
- 1783US5840384AAqueous coating composition for exterior surface of canKANSAI PAINT CO LTD·Filed 1997·Granted Nov 24, 1998·51 cites·8 claims
- 1882US8864511B2Tube lamp and luminaireSHIMIZU KEIICHI·Filed 2011·Granted Oct 21, 2014·7 cites·12 claims
- 1982US7722213B2Lighting apparatusTOSHIBA LIGHTING & TECHNOLOGY·Filed 2008·Granted May 25, 2010·12 cites·3 claims
- 2080US8079736B2Lighting apparatusINOUE MASARU·Filed 2010·Granted Dec 20, 2011·5 cites·4 claims
- 2179US8894254B2Luminaire and lamp apparatus housingMATSUDA RYOTARO·Filed 2012·Granted Nov 25, 2014·7 cites·10 claims
- 2279USD574541SRecessed lighting fixtureTOSHIBA LIGHTING & TECHNOLOGY·Filed 2007·Granted Aug 5, 2008·24 cites·1 claims
- 2379US7297884B2Switching arrangementOMRON TATEISI ELECTRONICS CO·Filed 2006·Granted Nov 20, 2007·9 cites·4 claims
- 2479US7294801B2Switching deviceOMRON TATEISI ELECTRONICS CO·Filed 2006·Granted Nov 13, 2007·9 cites·18 claims
- 2579US5544517AMethod of redrawing a predrawn coated metal canTOYO KOHAN CO LTD·Filed 1994·Granted Aug 13, 1996·24 cites·10 claims
- 2678US8427059B2Lighting deviceBETSUDA NOBUHIKO·Filed 2009·Granted Apr 23, 2013·11 cites·5 claims
- 2777US6238783B1Thermoplastic resin coated aluminum alloy sheet, and method and apparatus for production thereofTOYO KOHAN CO LTD·Filed 1997·Granted May 29, 2001·34 cites·24 claims
- 2876US7787476B2Layer 2 switch network systemMITSUBISHI ELECTRIC CORP·Filed 2004·Granted Aug 31, 2010·22 cites·20 claims
- 2976USD517725SLens for light-emitting deviceTOSHIBA LIGHTING & TECHNOLOGY·Filed 2003·Granted Mar 21, 2006·20 cites·1 claims
- 3076US5777861APower supply apparatus having high power-factor and low distortion-factor characteristicsTOSHIBA LIGHTING & TECHNOLOGY·Filed 1995·Granted Jul 7, 1998·55 cites·29 claims
- 3176US4478445ADoor handle assemblyKOKUSAN KINZOKU KOGYO KK·Filed 1982·Granted Oct 23, 1984·28 cites·2 claims
- 3275US9527692B2Image forming apparatusSHIMIZU KEIICHI·Filed 2015·Granted Dec 27, 2016·2 cites·13 claims
- 3375US7145090B2Switching deviceOMRON TATEISI ELECTRONICS CO·Filed 2006·Granted Dec 5, 2006·7 cites·6 claims
- 3474US4455588AElectronical unlocking method and systemNISSAN MOTOR·Filed 1982·Granted Jun 19, 1984·63 cites·27 claims
- 3573US8536800B2Illuminating device and controlling method thereofOTAKE HIROKAZU·Filed 2011·Granted Sep 17, 2013·1 cites·6 claims
- 3672US9880512B2Image forming apparatus including an outer cover and a subsidiary coverSHIMIZU KEIICHI·Filed 2016·Granted Jan 30, 2018·1 cites·20 claims
- 3772US8963190B2Light-emitting device and lighting apparatusMATSUDA RYOTARO·Filed 2010·Granted Feb 24, 2015·4 cites·7 claims
- 3871US9706608B2Straight tube LED lamp, lamp socket set, and lighting fixtureFUKANO SATOSHI·Filed 2011·Granted Jul 11, 2017·3 cites·22 claims
- 3971US5453667AInverter having frequency changing functionTOSHIBA LIGHTING & TECHNOLOGY·Filed 1993·Granted Sep 26, 1995·32 cites·20 claims
- 4070US8827506B2LuminaireOSADA TAKESHI·Filed 2011·Granted Sep 9, 2014·3 cites·15 claims
- 4170US8721125B2Self-ballasted lamp and lighting equipmentSAKAI MAKOTO·Filed 2010·Granted May 13, 2014·2 cites·16 claims
- 4270US8714785B2Cap, socket device, and luminaireOSADA TAKESHI·Filed 2011·Granted May 6, 2014·3 cites·16 claims
- 4370US8047687B2Lighting apparatusTOSHIBA LIGHTING & TECHNOLOGY·Filed 2010·Granted Nov 1, 2011·2 cites·4 claims
- 4470US7714042B2Coating composition for cansKANSAI PAINT CO LTD·Filed 2007·Granted May 11, 2010·2 cites·8 claims
- 4570US6177768B1Discharge lamp lighting device and illumination deviceTOSHIBA LIGHTING & TECHNOLOGY·Filed 1998·Granted Jan 23, 2001·41 cites·18 claims
- 4669US4516415ASteering lock for automobilesKOKUSAN KINZOKU KOGYO KK·Filed 1982·Granted May 14, 1985·25 cites·3 claims
- 4768US4992702AInverter capable of controlling operating frequencyTOSHIBA ELECTRIC EQUIP·Filed 1988·Granted Feb 12, 1991·28 cites·16 claims
- 4867US6005201ASwitchOMRON TATEISI ELECTRONICS CO·Filed 1997·Granted Dec 21, 1999·22 cites·14 claims
- 4967US4603563AMagnetic door locking systemNISSAN MOTOR·Filed 1983·Granted Aug 5, 1986·25 cites·14 claims
- 5066US4562717ADrawing punch for drawing foilTOYO KOHAN CO LTD·Filed 1984·Granted Jan 7, 1986·24 cites·3 claims
Showing the top 50 of 133 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →