Assignee
IWASAKI ELECTRIC CO LTD
JP·39 granted patents·11 pending applications·326 citations·filing 1976–2018
Top patents by PatentIndex Score
50 records- 0185US7733029B2Lighting device and a lighting method for a high pressure discharge lampIWASAKI ELECTRIC CO LTD·Filed 2005·Granted Jun 8, 2010·12 cites·8 claims
- 0282US4137483AHigh pressure discharge lamp with a starting circuit contained thereinIWASAKI ELECTRIC CO LTD·Filed 1976·Granted Jan 30, 1979·27 cites·8 claims
- 0376US9239151B2LampIWASAKI ELECTRIC CO LTD·Filed 2015·Granted Jan 19, 2016·3 cites·4 claims
- 0475US4520294AHigh pressure metal vapor discharge lampIWASAKI ELECTRIC CO LTD·Filed 1983·Granted May 28, 1985·31 cites·28 claims
- 0573US5623181AMulti-layer type light emitting deviceIWASAKI ELECTRIC CO LTD·Filed 1995·Granted Apr 22, 1997·44 cites·21 claims
- 0669US9879851B2Lamp having outwardly orientated light source units and inwardly orientated heat sinks with transversely orientated finsIWASAKI ELECTRIC CO LTD·Filed 2014·Granted Jan 30, 2018·4 cites·9 claims
- 0769US9097391B2LampIWASAKI ELECTRIC CO LTD·Filed 2012·Granted Aug 4, 2015·2 cites·17 claims
- 0867US9625386B2Imaging systemIWASAKI ELECTRIC CO LTD·Filed 2014·Granted Apr 18, 2017·1 cites·13 claims
- 0965US8049424B2Light source incorporating a proximity guide portion on an external surface of a sealing portion for securing a trigger wireIWASAKI ELECTRIC CO LTD·Filed 2007·Granted Nov 1, 2011·2 cites·10 claims
- 1065US8040031B2Lamp with outer tube and attaching memberIWASAKI ELECTRIC CO LTD·Filed 2009·Granted Oct 18, 2011·2 cites·8 claims
- 1164US4931655AApparatus for accelerated weather-testing of a sample using a metal halide lampIWASAKI ELECTRIC CO LTD·Filed 1987·Granted Jun 5, 1990·28 cites·6 claims
- 1263US6791286B2Hid lamp operating circuitIWASAKI ELECTRIC CO LTD·Filed 2001·Granted Sep 14, 2004·10 cites·5 claims
- 1361US5220244AMetal halide discharge lampIWASAKI ELECTRIC CO LTD·Filed 1991·Granted Jun 15, 1993·20 cites·4 claims
- 1461US4897576AMetal vapor discharge lamp having starter thereinIWASAKI ELECTRIC CO LTD·Filed 1988·Granted Jan 30, 1990·13 cites·14 claims
- 1560US7644596B2Method of manufacturing a glass reflectorIWASAKI ELECTRIC CO LTD·Filed 2005·Granted Jan 12, 2010·5 cites·5 claims
- 1660US7075232B2High-pressure discharge lampIWASAKI ELECTRIC CO LTD·Filed 2002·Granted Jul 11, 2006·7 cites·3 claims
- 1757US6836078B2Circuit for lighting HID lampIWASAKI ELECTRIC CO LTD·Filed 2001·Granted Dec 28, 2004·7 cites·5 claims
- 1856US9332892B2Light converging type light guide unit and light source device using the sameIWASAKI ELECTRIC CO LTD·Filed 2013·Granted May 10, 2016·1 cites·7 claims
- 1956US5220237AMetal halide lamp apparatusIWASAKI ELECTRIC CO LTD·Filed 1991·Granted Jun 15, 1993·18 cites·8 claims
- 2056US4975620AMetal vapor discharge lamp and method of producing the sameIWASAKI ELECTRIC CO LTD·Filed 1988·Granted Dec 4, 1990·11 cites·6 claims
- 2154US8350477B2Ceramic metal halide lamp with length to diameter ratioIWASAKI ELECTRIC CO LTD·Filed 2010·Granted Jan 8, 2013·2 cites·6 claims
- 2253US5646472AMetal halide lampIWASAKI ELECTRIC CO LTD·Filed 1995·Granted Jul 8, 1997·29 cites·11 claims
- 2350US8008844B2Triple walled lampIWASAKI ELECTRIC CO LTD·Filed 2009·Granted Aug 30, 2011·0 cites·9 claims
- 2450US5138231AHigh pressure metal vapor discharge lampIWASAKI ELECTRIC CO LTD·Filed 1991·Granted Aug 11, 1992·14 cites·7 claims
- 2548US8342899B2Method of manufacturing lamp and quartz bulbIWASAKI ELECTRIC CO LTD·Filed 2008·Granted Jan 1, 2013·0 cites·13 claims
- 2648US5420479AHigh pressure vapor discharge lamp with a built-in igniterIWASAKI ELECTRIC CO LTD·Filed 1993·Granted May 30, 1995·9 cites·8 claims
- 2747US8653731B2Metal halide lamp with stabilized lamp lightingIWASAKI ELECTRIC CO LTD·Filed 2013·Granted Feb 18, 2014·0 cites·12 claims
- 2847US2010219752A1Quartz bulb for double ended discharge lampIWASAKI ELECTRIC CO LTD·Filed 2008·Application pending·0 cites
- 2947US2016203970A1Halogen lampIWASAKI ELECTRIC CO LTD·Filed 2014·Application pending·0 cites
- 3046US4807085ANonlinear capacitor for generating high-voltage pulsesIWASAKI ELECTRIC CO LTD·Filed 1988·Granted Feb 21, 1989·8 cites·15 claims
- 3145US10464312B2Curing method and curing systemIWASAKI ELECTRIC CO LTD·Filed 2017·Granted Nov 5, 2019·0 cites·8 claims
- 3245US2016084475A1Lighting apparatusIWASAKI ELECTRIC CO LTD·Filed 2013·Application pending·0 cites
- 3345US2010157257A1High pressure discharge lamp ballast, high pressure dischargep lamp driving method, and projectorIWASAKI ELECTRIC CO LTD·Filed 2008·Application pending·0 cites
- 3444US8911115B2Irradiation deviceIWASAKI ELECTRIC CO LTD·Filed 2012·Granted Dec 16, 2014·0 cites·9 claims
- 3543US9995475B2Illumination deviceIWASAKI ELECTRIC CO LTD·Filed 2014·Granted Jun 12, 2018·0 cites·10 claims
- 3643US2011037385A1Electrode for ultra-high pressure mercury lamp and ultra-high pressure mercury lampIWASAKI ELECTRIC CO LTD·Filed 2009·Application pending·0 cites
- 3741US9275845B2Ceramic metal halide lamp having dysprosium iodideIWASAKI ELECTRIC CO LTD·Filed 2013·Granted Mar 1, 2016·0 cites·6 claims
- 3839US10153152B2High-pressure sodium lamp lighting deviceIWASAKI ELECTRIC CO LTD·Filed 2017·Granted Dec 11, 2018·0 cites·2 claims
- 3939US4755721AHigh pressure sodium vapor lamp having unsaturated vapor pressure type characteristicsIWASAKI ELECTRIC CO LTD·Filed 1987·Granted Jul 5, 1988·5 cites·3 claims
- 4038US2020231924A1Substrate for test use, and method for producing substrate for test useIWASAKI ELECTRIC CO LTD·Filed 2018·Application pending·0 cites
- 4138US2013106280A1Ceramic metal halide lampIWASAKI ELECTRIC CO LTD·Filed 2012·Application pending·0 cites
- 4238US2013038843A1High pressure discharge lamp ballast and a method for driving a high pressure discharge lamp ballastIWASAKI ELECTRIC CO LTD·Filed 2011·Application pending·0 cites
- 4336US2014346961A1High-wattage ceramic metal halide lampIWASAKI ELECTRIC CO LTD·Filed 2012·Application pending·0 cites
- 4434US4827190AMetal vapor discharge lamp and method of producing the sameIWASAKI ELECTRIC CO LTD·Filed 1985·Granted May 2, 1989·4 cites·11 claims
- 4534US2016231176A1Light irradiation device having polarization measuring mechanismIWASAKI ELECTRIC CO LTD·Filed 2015·Application pending·0 cites
- 4632US9804023B2Glare measuring systemIWASAKI ELECTRIC CO LTD·Filed 2013·Granted Oct 31, 2017·0 cites·8 claims
- 4729US4972121AMetal vapor discharge lampIWASAKI ELECTRIC CO LTD·Filed 1989·Granted Nov 20, 1990·2 cites·3 claims
- 4825US2015022659A1Luminance measuring apparatusIWASAKI ELECTRIC CO LTD·Filed 2013·Application pending·0 cites
- 4920US4567403AHigh pressure discharge lamp with incorporated starterIWASAKI ELECTRIC CO LTD·Filed 1982·Granted Jan 28, 1986·1 cites·10 claims
- 5017US5045757AMetal vapor discharge lampIWASAKI ELECTRIC CO LTD·Filed 1990·Granted Sep 3, 1991·4 cites·3 claims
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