Inventor · disambiguated record
Masakazu Nagasawa
Also filed as: NAGASAWA MASAKAZU
35 granted patents·3 pending applications·486 citations·filing 1980–2023
97Inventor score
Files withKOITO MFG CO LTD16BRIDGESTONE CORP13NGK SPARK PLUG CO6OTSUKA MEDICAL DEVICES CO LTD2PROSPIRA CORP1
Top patents by PatentIndex Score
38 records- 0195US5220235ADischarge lamp deviceKOITO MFG CO LTD·Filed 1992·Granted Jun 15, 1993·137 cites·11 claims
- 0294US9772002B2Vibration isolatorBRIDGESTONE CORP·Filed 2015·Granted Sep 26, 2017·10 cites·12 claims
- 0393US9726251B2Vibration isolatorBRIDGESTONE CORP·Filed 2015·Granted Aug 8, 2017·9 cites·7 claims
- 0488US6557379B1Method of producing an arc tubeKOITO MFG CO LTD·Filed 2000·Granted May 6, 2003·19 cites·5 claims
- 0581US5286227AArc tube and method for manufacturing the sameKOITO MFG CO LTD·Filed 1992·Granted Feb 15, 1994·40 cites·6 claims
- 0679US10030738B2Vibration-damping deviceBRIDGESTONE CORP·Filed 2014·Granted Jul 24, 2018·6 cites·2 claims
- 0779US9719576B2Vibration isolatorBRIDGESTONE CORP·Filed 2015·Granted Aug 1, 2017·3 cites·8 claims
- 0877US12485026B2Drug-eluting stent including crystalline cilostazolOTSUKA MEDICAL DEVICES CO LTD·Filed 2023·Granted Dec 2, 2025·0 cites·10 claims
- 0977US6900412B2Glow plugNGK SPARK PLUG CO·Filed 2003·Granted May 31, 2005·12 cites·24 claims
- 1076US11292329B2Active anti-vibration device and method of controlling active-vibration deviceBRIDGESTONE CORP·Filed 2018·Granted Apr 5, 2022·2 cites·6 claims
- 1176US5936349AArc tube having a pair of molybdenum foils, and method for its fabricationKOITO MFG CO LTD·Filed 1997·Granted Aug 10, 1999·31 cites·6 claims
- 1274US4769574AIncandescent lamp with a metal coupling to a plastic lamp base for automotive headlamp and like lighting applicationsKOITO MFG CO LTD·Filed 1987·Granted Sep 6, 1988·32 cites·6 claims
- 1372US6547619B1ARC tube for discharge lamp unit and method of manufacturing sameKOITO MFG CO LTD·Filed 2000·Granted Apr 15, 2003·10 cites·14 claims
- 1472US5463270AInsulating base for discharge lamp deviceKOITO MFG CO LTD·Filed 1994·Granted Oct 31, 1995·26 cites·6 claims
- 1570US5757110AElectrical discharge lamp with ultraviolet filtering globe having rear end part supported insulating baseKOITO MFG CO LTD·Filed 1995·Granted May 26, 1998·25 cites·9 claims
- 1670US5505648AContamination-free method of making arc tubesKOITO MFG CO LTD·Filed 1994·Granted Apr 9, 1996·22 cites·5 claims
- 1769US9939038B2Vibration-damping deviceBRIDGESTONE CORP·Filed 2014·Granted Apr 10, 2018·3 cites·6 claims
- 1868US6844525B2Glow plug and glow-plug-mounting structureNGK SPARK PLUG CO·Filed 2003·Granted Jan 18, 2005·10 cites·8 claims
- 1965US10480607B2Vibration-damping deviceBRIDGESTONE CORP·Filed 2016·Granted Nov 19, 2019·1 cites·7 claims
- 2065US6744015B2Heater and method for manufacturing the sameNGK SPARK PLUG CO·Filed 2002·Granted Jun 1, 2004·9 cites·18 claims
- 2165US6414273B1Glow plug control apparatus, glow plug, and method of detecting ions in engine combustion chamberNGK SPARK PLUG CO·Filed 2001·Granted Jul 2, 2002·9 cites·6 claims
- 2265US5432399ADischarge lamp apparatusKOITO MFG CO LTD·Filed 1994·Granted Jul 11, 1995·18 cites·24 claims
- 2364US10221916B2Anti-vibration apparatusBRIDGESTONE CORP·Filed 2014·Granted Mar 5, 2019·2 cites·8 claims
- 2464US5059855ADischarge lamp base constructionKOITO MFG CO LTD·Filed 1990·Granted Oct 22, 1991·17 cites·7 claims
- 2561US5177397ADischarge lamp assembly with insulating tubular member and metal band around pinch sealKOITO MFG CO LTD·Filed 1989·Granted Jan 5, 1993·11 cites·6 claims
- 2656US11806257B2Drug-eluting stent including crystalline cilostazolOTSUKA MEDICAL DEVICES CO LTD·Filed 2020·Granted Nov 7, 2023·0 cites·20 claims
- 2754US6770850B2HeaterNGK SPARK PLUG CO·Filed 2002·Granted Aug 3, 2004·5 cites·6 claims
- 2853US6616494B1Method and apparatus for supplying pellets to arc tube for discharge lampKOITO MFG CO LTD·Filed 2000·Granted Sep 9, 2003·2 cites·15 claims
- 2946US9759285B2Vibration damping deviceBRIDGESTONE CORP·Filed 2014·Granted Sep 12, 2017·0 cites·14 claims
- 3046US4339685ASealed beam lamp assemblyKOITO MFG CO LTD·Filed 1980·Granted Jul 13, 1982·10 cites·6 claims
- 3144US11619279B2Vibration-damping devicePROSPIRA CORP·Filed 2017·Granted Apr 4, 2023·0 cites·4 claims
- 3244US10788093B2Vibration-damping deviceBRIDGESTONE CORP·Filed 2017·Granted Sep 29, 2020·0 cites·12 claims
- 3340US10760641B2Vibration damping deviceBRIDGESTONE CORP·Filed 2017·Granted Sep 1, 2020·0 cites·4 claims
- 3440US5186671AManufacturing method of discharge lamp electrodeKOITO MFG CO LTD·Filed 1991·Granted Feb 16, 1993·5 cites·4 claims
- 3540US2020049224A1Vibration-damping deviceBRIDGESTONE CORP·Filed 2018·Application pending·0 cites
- 3640US2019176605A1Vibration-damping deviceBRIDGESTONE CORP·Filed 2017·Application pending·0 cites
- 3739US2019275278A1Nasal cannulaNGK SPARK PLUG CO·Filed 2019·Application pending·0 cites
- 3837US6321799B1Method and apparatus for supplying mercury to arc tube for discharge lampKOITO MFG CO LTD·Filed 2000·Granted Nov 27, 2001·0 cites·21 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →