Inventor · disambiguated record
Seiji Kumazawa
Also filed as: KUMAZAWA SEIJI
14 granted patents·5 pending applications·112 citations·filing 1992–2022
89Inventor score
Files withPANASONIC IP MAN CO LTD5HARIMA YUKIO2MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2SANYO ELECTRIC CO2KUMAZAWA SEIJI1
Top patents by PatentIndex Score
19 records- 0189US10439191B2Welded metal component and battery including the samePANASONIC IP MAN CO LTD·Filed 2017·Granted Oct 8, 2019·2 cites·9 claims
- 0286US5994642AMethod for preparing CdTe film and solar cell using the sameMATSUSHITA BATTERY IND CO LTD·Filed 1997·Granted Nov 30, 1999·90 cites·16 claims
- 0381US10601014B2Battery system for laser-welding a busbar to electrode terminals and connecting battery cells in a low resistance stateSANYO ELECTRIC CO·Filed 2015·Granted Mar 24, 2020·2 cites·9 claims
- 0480US11185947B2Welding structure and welding method for metal memberPANASONIC IP MAN CO LTD·Filed 2018·Granted Nov 30, 2021·1 cites·10 claims
- 0575US8105712B2Sealed secondary battery, and method for manufacturing the batteryMIYATA KYOSUKE·Filed 2009·Granted Jan 31, 2012·6 cites·20 claims
- 0673US8487211B2Method and apparatus for using multiple laser beams to weld members that are separated by a gapSAKURAI TUTOMU·Filed 2010·Granted Jul 16, 2013·4 cites·7 claims
- 0770US9634298B2Hermetically sealed battery and method for manufacturing the sameHARIMA YUKIO·Filed 2010·Granted Apr 25, 2017·2 cites·3 claims
- 0866US7561350B2Optical unit and its manufacturing methodPANASONIC CORP·Filed 2005·Granted Jul 14, 2009·1 cites·13 claims
- 0965US11161197B2Joined structure and joining methodPANASONIC IP MAN CO LTD·Filed 2019·Granted Nov 2, 2021·0 cites·5 claims
- 1063US2024399498A1Welding method and welding structure of metal memberPANASONIC IP MAN CO LTD·Filed 2022·Application pending·0 cites
- 1162US7440199B2Manufacturing method of optical component and camera moduleMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Oct 21, 2008·1 cites·6 claims
- 1255US2023088137A1Cutting device and cutting methodPANASONIC HOLDINGS CORP·Filed 2021·Application pending·0 cites
- 1349US7411748B2Optical component unit, laser joining method and apparatus for joining optical componentMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Aug 12, 2008·0 cites·11 claims
- 1443US8715850B2Battery module and method of manufacturing the sameUCHIDA OSAMU·Filed 2011·Granted May 6, 2014·0 cites·4 claims
- 1541US11428251B2Weld structure of metal member and welding processPANASONIC IP MAN CO LTD·Filed 2016·Granted Aug 30, 2022·0 cites·12 claims
- 1638US2017365827A1Battery systemSANYO ELECTRIC CO·Filed 2015·Application pending·0 cites
- 1737US2011195288A1Sealed battery and method for fabricating the sameHARIMA YUKIO·Filed 2010·Application pending·0 cites
- 1837US2012161753A1Electric power measuring deviceKUMAZAWA SEIJI·Filed 2011·Application pending·0 cites
- 1923US5220313ADevice for driving a liquid crystal display deviceSHARP KK·Filed 1992·Granted Jun 15, 1993·3 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →