Inventor · disambiguated record
Katsuaki Iwama
Also filed as: IWAMA KATSUAKI
12 granted patents·427 citations·filing 1975–2016
93Inventor score
Top patents by PatentIndex Score
12 records- 0198US7422504B2Light-emitting semiconductor device, light-emitting system and method for fabricating light-emitting semiconductor deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Sep 9, 2008·71 cites·16 claims
- 0298US7023019B2Light-emitting semiconductor device, light-emitting system and method for fabricating light-emitting semiconductor deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Apr 4, 2006·212 cites·19 claims
- 0393US7592639B2Light-emitting semiconductor device, light-emitting system and method for fabricating light-emitting semiconductor devicePANASONIC CORP·Filed 2006·Granted Sep 22, 2009·19 cites·22 claims
- 0492US7629620B2Light-emitting semiconductor device, light-emitting system and method for fabricating light-emitting semiconductor devicePANASONIC CORP·Filed 2006·Granted Dec 8, 2009·19 cites·14 claims
- 0576US7772769B2Light-emitting semiconductor device, light-emitting system and method for fabricating light-emitting semiconductor devicePANASONIC CORP·Filed 2007·Granted Aug 10, 2010·3 cites·16 claims
- 0673US7294956B2Semiconductor light emitting element and light emitting device using thisMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Nov 13, 2007·20 cites·6 claims
- 0770US4705986AHigh color rendering fluorescent lampMATSUSHITA ELECTRONICS CORP·Filed 1987·Granted Nov 10, 1987·24 cites·3 claims
- 0864US4047069AHigh-pressure mercury-vapor lamp having a plural phosphor coatingMATSUSHITA ELECTRONICS CORP·Filed 1975·Granted Sep 6, 1977·20 cites·2 claims
- 0960USRE47453ELuminescent layer and light-emitting semiconductor devicePANASONIC CORP·Filed 2016·Granted Jun 25, 2019·0 cites·26 claims
- 1054US6445119B1Combined light emitting discharge lamp and luminaire using such lampMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Sep 3, 2002·12 cites·26 claims
- 1153US6528444B1Glass composition, stem and bulb for lampsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Mar 4, 2003·18 cites·6 claims
- 1244US4032812AFluorescent high-pressure mercury-vapor lampMATSUSHITA ELECTRONICS CORP·Filed 1976·Granted Jun 28, 1977·9 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →