Assignee
KAGAWA SEIJI
JP·39 granted patents·16 pending applications·164 citations·filing 1981–2024
Top patents by PatentIndex Score
55 records- 0189US10744665B2Apparatus for producing microporous plastic filmKAGAWA SEIJI·Filed 2018·Granted Aug 18, 2020·3 cites·8 claims
- 0288US9907218B2Near-field noise suppression filmKAGAWA SEIJI·Filed 2015·Granted Feb 27, 2018·2 cites·6 claims
- 0387US10062477B1Electromagnetic-wave-absorbing filterKAGAWA SEIJI·Filed 2018·Granted Aug 28, 2018·4 cites·10 claims
- 0486US9550206B2Electromagnetic-wave-absorbing film and its production methodKAGAWA SEIJI·Filed 2013·Granted Jan 24, 2017·3 cites·5 claims
- 0585US9894817B2Composite electromagnetic-wave-absorbing sheetKAGAWA SEIJI·Filed 2012·Granted Feb 13, 2018·6 cites·7 claims
- 0684US9096013B2Apparatus for forming slant, linear easy-to-tear portions on long plastic filmKAGAWA SEIJI·Filed 2012·Granted Aug 4, 2015·5 cites·11 claims
- 0783US8598470B2Electromagnetic-wave-absorbing film and electromagnetic wave absorber comprising itKAGAWA SEIJI·Filed 2009·Granted Dec 3, 2013·11 cites·9 claims
- 0882US7938998B2Easy-to-straight-tearing thermoplastic resin film and its production method and apparatusKAGAWA SEIJI·Filed 2009·Granted May 10, 2011·5 cites·10 claims
- 0979US9238351B2Composite film of linearly-scratched, thin metal film and plastic film, and its production apparatusKAGAWA SEIJI·Filed 2010·Granted Jan 19, 2016·2 cites·3 claims
- 1079US8568673B2Gas analysis device, mercury removal system, gas analysis method, and removal method for mercury in flue gasKAGAWA SEIJI·Filed 2011·Granted Oct 29, 2013·3 cites·7 claims
- 1177US9289720B2System and method for treating mercury in flue gasKAGAWA SEIJI·Filed 2012·Granted Mar 22, 2016·3 cites·2 claims
- 1276US5648107APorous film manufacturing apparatusKAGAWA SEIJI·Filed 1994·Granted Jul 15, 1997·36 cites·26 claims
- 1374US11931972B2High-moisture-permeability, microporous plastic film, and its production method and apparatusKAGAWA SEIJI·Filed 2020·Granted Mar 19, 2024·0 cites·9 claims
- 1472US10538054B2Heat-dissipating film, and its production method and apparatusKAGAWA SEIJI·Filed 2018·Granted Jan 21, 2020·1 cites·15 claims
- 1568US10645850B2Electromagnetic-wave-absorbing composite sheetKAGAWA SEIJI·Filed 2019·Granted May 5, 2020·0 cites·4 claims
- 1668US9889479B2Method for producing porous metal foilKAGAWA SEIJI·Filed 2014·Granted Feb 13, 2018·2 cites·4 claims
- 1767US10056697B2Near-field electromagnetic wave absorbing filmKAGAWA SEIJI·Filed 2016·Granted Aug 21, 2018·1 cites·8 claims
- 1867US9616640B2Composite film of linearly-scratched, thin metal film and plastic film, and its production apparatusKAGAWA SEIJI·Filed 2015·Granted Apr 11, 2017·1 cites·3 claims
- 1966US9326433B2Composite electromagnetic-wave-absorbing filmKAGAWA SEIJI·Filed 2010·Granted Apr 26, 2016·2 cites·15 claims
- 2064US4403946AIgniter utilizing piezo-electric elementKAGAWA SEIJI·Filed 1981·Granted Sep 13, 1983·18 cites·8 claims
- 2164US2025056776A1Electromagnetic-wave-absorbing film and its production apparatus, and near-field electromagnetic wave absorber comprising such electromagnetic-wave-absorbing filmKAGAWA SEIJI·Filed 2024·Application pending·0 cites
- 2263US8741033B2Air pollution control apparatusKAGAWA SEIJI·Filed 2010·Granted Jun 3, 2014·2 cites·7 claims
- 2362US10609810B2Method for producing heat-dissipating sheet having high thermal conductivityKAGAWA SEIJI·Filed 2018·Granted Mar 31, 2020·0 cites·13 claims
- 2462US8952273B2Near-field noise suppression sheetKAGAWA SEIJI·Filed 2011·Granted Feb 10, 2015·1 cites·6 claims
- 2562US5458951APorous film, method for manufacturing the same, gas permeability control film, and water vapor permeability control filmKAGAWA SEIJI·Filed 1994·Granted Oct 17, 1995·19 cites·8 claims
- 2661US9968975B2Method and apparatus for producing microporous metal foilKAGAWA SEIJI·Filed 2015·Granted May 15, 2018·0 cites·13 claims
- 2761US2019338176A1Heat-dissipating film, and its production method and apparatusKAGAWA SEIJI·Filed 2019·Application pending·0 cites
- 2861US2015118482A1Heat-dissipating film, and its production method and apparatusKAGAWA SEIJI·Filed 2014·Application pending·0 cites
- 2960US2010068441A1Easy-to-straight-tear plastic film, and its production method and apparatusKAGAWA SEIJI·Filed 2008·Application pending·0 cites
- 3058US10667444B2Electromagnetic-wave-absorbing composite sheetKAGAWA SEIJI·Filed 2019·Granted May 26, 2020·0 cites·8 claims
- 3157US10654257B2Electromagnetic wave absorption cableKAGAWA SEIJI·Filed 2018·Granted May 19, 2020·0 cites·10 claims
- 3257US9631130B2Heat-dissipating sheet having high thermal conductivity and its production methodKAGAWA SEIJI·Filed 2014·Granted Apr 25, 2017·0 cites·3 claims
- 3356US2024061474A1Near-field electromagnetic wave absorberKAGAWA SEIJI·Filed 2023·Application pending·0 cites
- 3455US10875259B2High-moisture-permeability, microporous plastic film, and its production method and apparatusKAGAWA SEIJI·Filed 2016·Granted Dec 29, 2020·0 cites·6 claims
- 3555US5593632AMethod of making a porous filmKAGAWA SEIJI·Filed 1995·Granted Jan 14, 1997·18 cites·8 claims
- 3654US2015257251A1Heat-dissipating sheet having high thermal conductivity and its production methodKAGAWA SEIJI·Filed 2014·Application pending·0 cites
- 3753US10005943B2Heat-dissipating sheet having high thermal conductivity and its production methodKAGAWA SEIJI·Filed 2017·Granted Jun 26, 2018·0 cites·11 claims
- 3853US2016185074A1Heat-dissipating film, and its production method and apparatusKAGAWA SEIJI·Filed 2014·Application pending·0 cites
- 3951US2006051540A1Shape-memory polybutylene terephthalate film, production process and use thereof, and process for production of polybutylene terephthalate filmKAGAWA SEIJI·Filed 2003·Application pending·0 cites
- 4050US10538027B2Apparatus for producing easy-to-tear plastic filmKAGAWA SEIJI·Filed 2018·Granted Jan 21, 2020·0 cites·11 claims
- 4150US9400102B2Heat exchanger including flow regulating platesKAGAWA SEIJI·Filed 2009·Granted Jul 26, 2016·0 cites·7 claims
- 4250US2005233102A1Linearly easy-to-rupture thermoplastic resin film, and method and device for manufacturing the resin filmKAGAWA SEIJI·Filed 2003·Application pending·0 cites
- 4350US2014141267A1Near-field noise suppression filmKAGAWA SEIJI·Filed 2012·Application pending·0 cites
- 4448US10940618B2Apparatus for producing microporous plastic filmKAGAWA SEIJI·Filed 2017·Granted Mar 9, 2021·0 cites·10 claims
- 4548US10538026B2Apparatus for producing microporous plastic filmKAGAWA SEIJI·Filed 2017·Granted Jan 21, 2020·0 cites·11 claims
- 4648US2006131779A1Method for producing polybutylene terephthalate filmKAGAWA SEIJI·Filed 2003·Application pending·0 cites
- 4747US7335281B2Method of manufacturing liquid medium containing composite ultrafine particlesKAGAWA SEIJI·Filed 2003·Granted Feb 26, 2008·0 cites·12 claims
- 4846US2020045859A1Electromagnetic-wave-absorbing composite sheetKAGAWA SEIJI·Filed 2019·Application pending·0 cites
- 4945US2006057405A1Method and apparatus for producing polybutylene terephthalate film, and shape-memory polybutylene terephthalate laminate filmKAGAWA SEIJI·Filed 2003·Application pending·0 cites
- 5044US10283284B2Method and apparatus for producing microporous metal foilKAGAWA SEIJI·Filed 2015·Granted May 7, 2019·0 cites·12 claims
Showing the top 50 of 55 patent records by PatentIndex Score.
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