Inventor · disambiguated record
Masahide Sumiyama
Also filed as: SUMIYAMA MASAHIDE
23 granted patents·9 pending applications·134 citations·filing 1999–2012
95Inventor score
Files withPANASONIC CORP12MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7MIMURA KAZUYOSHI4TAKASE TOMOYASU3OKAZAKI MASATOSHI2
Top patents by PatentIndex Score
32 records- 0192US7362877B2Electric acoustic converter and electronic device using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Apr 22, 2008·31 cites·8 claims
- 0284US7877856B2Method of manufacturing a speakerPANASONIC CORP·Filed 2009·Granted Feb 1, 2011·11 cites·2 claims
- 0382US7548632B2Speaker, module using the same, electronic equipment and device, and speaker producing methodPANASONIC CORP·Filed 2005·Granted Jun 16, 2009·11 cites·15 claims
- 0475US7583812B2Electro-acoustic converter and electronic device using the samePANASONIC CORP·Filed 2005·Granted Sep 1, 2009·7 cites·8 claims
- 0572US7538820B2Information terminal device with angled output unitsPANASONIC CORP·Filed 2005·Granted May 26, 2009·6 cites·15 claims
- 0670US7548627B2Speaker, and module, electronic apparatus, and device that use the speakerPANASONIC CORP·Filed 2005·Granted Jun 16, 2009·4 cites·9 claims
- 0767US7630508B2Electro-acoustic transducer and electronic apparatus using itPANASONIC CORP·Filed 2005·Granted Dec 8, 2009·2 cites·7 claims
- 0865US8199964B2Speaker diaphragm, speaker dust cap, speaker sub-cone, speaker using these components, and electronic apparatus using the sameMIMURA KAZUYOSHI·Filed 2007·Granted Jun 12, 2012·4 cites·45 claims
- 0962US8343313B2Plant for production of paper-made part for speaker, paper-made part for speaker produced thereby, and speaker utilizing the samePANASONIC CORP·Filed 2007·Granted Jan 1, 2013·2 cites·8 claims
- 1062US7388964B2Loudspeaker, and module and electronic apparatus using the loudspeakerMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Jun 17, 2008·9 cites·26 claims
- 1161US8023685B2Electroacoustic transducer and electronic device using the samePANASONIC CORP·Filed 2005·Granted Sep 20, 2011·2 cites·22 claims
- 1257US8553924B2Speaker, speaker device using the same and electronic apparatus and vehicle using the speakerSUMIYAMA MASAHIDE·Filed 2007·Granted Oct 8, 2013·2 cites·19 claims
- 1357US8144912B2Manufacturing method of paper making part for loudspeaker, paper making part for loudspeaker, diaphragm for loudspeaker, sub cone for loudspeaker, dust cap for loudspeaker and loudspeakerMIMURA KAZUYOSHI·Filed 2007·Granted Mar 27, 2012·1 cites·11 claims
- 1457US7527516B2Portable electronic devicePANASONIC CORP·Filed 2005·Granted May 5, 2009·1 cites·7 claims
- 1555US7218743B2Speaker module and apparatus using thisMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted May 15, 2007·5 cites·8 claims
- 1654US7460679B2Flat panel speaker system with a coated diaphragmPANASONIC CORP·Filed 2004·Granted Dec 2, 2008·6 cites·14 claims
- 1752US8126188B2Speaker and method of producing the sameTAKASE TOMOYASU·Filed 2006·Granted Feb 28, 2012·1 cites·7 claims
- 1852US7634102B2Speaker and device using the samePANASONIC CORP·Filed 2004·Granted Dec 15, 2009·3 cites·7 claims
- 1949US8428283B2Manufacturing method of paper making part for loudspeaker, paper making part for loudspeaker, diaphragm for loudspeaker, sub cone for loudspeaker, dust cap for loudspeaker and loudspeakerMIMURA KAZUYOSHI·Filed 2012·Granted Apr 23, 2013·0 cites·11 claims
- 2049US7502485B2Loudspeaker, loudspeaker module, and electronic equipment using the loudspeaker modulePANASONIC CORP·Filed 2004·Granted Mar 10, 2009·1 cites·49 claims
- 2149US2009060254A1Speaker and electronic apparatus and device using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2007·Application pending·0 cites
- 2248US6341167B1SpeakerMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Jan 22, 2002·25 cites·2 claims
- 2348US2009220119A1Speaker, and module, electronic apparatus, and device that use the speakerTAKASE TOMOYASU·Filed 2009·Application pending·0 cites
- 2446US2008056528A1LoudspeakerMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2006·Application pending·0 cites
- 2544US2007217647A1Electro-Acoustic Converter, Module Using Same, Electronic Device, and ApparatusPANASONIC ELECTRONIC DEVICES C·Filed 2005·Application pending·0 cites
- 2644US2007223743A1Electro-Acoustic Converter and Electronic Device Using the SameHONDA KAZUKI·Filed 2005·Application pending·0 cites
- 2743US2008000716A1Production Facility for Speaker Diaphragm, Method of Manufacturing Speaker Diaphragm Using the Production Facility, and Speaker DiaphragmMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Application pending·0 cites
- 2842US8098869B2Loudspeaker damper, manufacturing method thereof, and loudspeaker and electronic device using the sameOKAZAKI MASATOSHI·Filed 2006·Granted Jan 17, 2012·0 cites·18 claims
- 2942US2007160258A1Vibrating plate for electricity-sound transformer and method for producing the same, and electricity-sound transformer and equipment using the sameMIMURA KAZUYOSHI·Filed 2005·Application pending·0 cites
- 3041US8335338B2Speaker and electronic apparatus and device using the sameSANO KOUZI·Filed 2012·Granted Dec 18, 2012·0 cites·28 claims
- 3137US2006182304A1Speaker, module employing it, electronic apparatus and deviceTAKASE TOMOYASU·Filed 2005·Application pending·0 cites
- 3237US2007131478A1Speaker, speaker-use diaphragm, dust cap, production methods and production devices for themOKAZAKI MASATOSHI·Filed 2005·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Masahide Sumiyama files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →