Inventor · disambiguated record
Shigetaka Douzono
Also filed as: DOUZONO SHIGETAKA
5 granted patents·1 pending application·123 citations·filing 2002–2011
81Inventor score
Top patents by PatentIndex Score
6 records- 0195US6686549B2Illuminated keyboard switchMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Feb 3, 2004·85 cites·4 claims
- 0279US6670565B2Illuminated button switchMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Dec 30, 2003·22 cites·4 claims
- 0365US8013265B1Switch devicePANASONIC CORP·Filed 2011·Granted Sep 6, 2011·2 cites·5 claims
- 0459US6837604B2Lighting apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Jan 4, 2005·7 cites·9 claims
- 0554US6764191B2Illumination type keyboardMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Jul 20, 2004·7 cites·14 claims
- 0632US2002145591A1Lighting unit and lighting apparatus using the same unitFiled 2002·Application pending·0 cites
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