Inventor · disambiguated record
Takashi Akiyama
Also filed as: AKIYAMA TAKASHI
127 granted patents·62 pending applications·1,908 citations·filing 1973–2024
99Inventor score
Files withCITIZEN WATCH CO LTD29AKIYAMA TAKASHI25CITIZEN HOLDINGS CO LTD19PANASONIC CORP17CITIZEN ELECTRONICS12
Top patents by PatentIndex Score
189 records- 0197US9228742B2Rich-lean combustion burner and combustion apparatusNORITZ CORP·Filed 2012·Granted Jan 5, 2016·113 cites·11 claims
- 0297US4064605AMethod for producing non-woven websTOYO BOSEKI·Filed 1976·Granted Dec 27, 1977·142 cites·5 claims
- 0396US8877407B2Polymer electrolyte fuel cell and method for producing the sameAKIYAMA TAKASHI·Filed 2012·Granted Nov 4, 2014·18 cites·9 claims
- 0495US6646697B1Liquid crystal displayCITIZEN WATCH CO LTD·Filed 1998·Granted Nov 11, 2003·186 cites·16 claims
- 0595US5729072AStator for an electric motorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Mar 17, 1998·157 cites·7 claims
- 0694US6271901B1Liquid crystal display device with two reflective polarizers providing metallic appearance effectsCITIZEN WATCH CO LTD·Filed 1998·Granted Aug 7, 2001·152 cites·17 claims
- 0792US7670705B2Fuel cell system with purifying apparatusPANASONIC CORP·Filed 2005·Granted Mar 2, 2010·20 cites·9 claims
- 0892US7061454B2Light emitting diode deviceCITIZEN ELECTRONICS·Filed 2003·Granted Jun 13, 2006·103 cites·4 claims
- 0992US6580479B1TimepieceCITIZEN WATCH CO LTD·Filed 1998·Granted Jun 17, 2003·135 cites·15 claims
- 1090US11987448B2Article transport vehicleDAIFUKU KK·Filed 2022·Granted May 21, 2024·2 cites·6 claims
- 1190US7106276B2Color display deviceCITIZEN WATCH CO LTD·Filed 2003·Granted Sep 12, 2006·41 cites·21 claims
- 1289US11365552B2Binding machineMAX CO LTD·Filed 2018·Granted Jun 21, 2022·5 cites·15 claims
- 1388US9052104B2Lighting device and method manufacturing holder of lighting deviceWATANABE MASASHI·Filed 2012·Granted Jun 9, 2015·9 cites·17 claims
- 1488US7002737B1Three-dimensional confocal microscopeYOKOGAWA ELECTRIC CORP·Filed 2004·Granted Feb 21, 2006·37 cites·3 claims
- 1587US9854631B2LED illumination deviceCITIZEN ELECTRONICS·Filed 2015·Granted Dec 26, 2017·6 cites·10 claims
- 1687US6643224B1Timepiece including multiple liquid crystal displaysCITIZEN WATCH CO LTD·Filed 2000·Granted Nov 4, 2003·36 cites·26 claims
- 1786US9485830B2LED lighting apparatusSAKAI KEISUKE·Filed 2012·Granted Nov 1, 2016·11 cites·7 claims
- 1886USD681801SBurnerAKIYAMA TAKASHI·Filed 2012·Granted May 7, 2013·5 cites·1 claims
- 1986USD672869SPortion of a burnerAKIYAMA TAKASHI·Filed 2012·Granted Dec 18, 2012·5 cites·1 claims
- 2086US7248244B2Color display device emitting each color light for different time periodCITIZEN HOLDINGS CO LTD·Filed 2003·Granted Jul 24, 2007·30 cites·20 claims
- 2185US6746236B2Combustion apparatusNORITZ CORP·Filed 2003·Granted Jun 8, 2004·28 cites·16 claims
- 2284US8418661B2Combustion apparatusKANDA YOSHINORI·Filed 2009·Granted Apr 16, 2013·23 cites·5 claims
- 2384US7301591B2Liquid crystal display device wherein the number of light emitting elements activated differs depending on whether display is performed by the first or second liquid crystal panelCITIZEN HOLDINGS CO LTD·Filed 2002·Granted Nov 27, 2007·27 cites·7 claims
- 2484US6937301B2Time piece with power generation functionCITIZEN WATCH CO LTD·Filed 2002·Granted Aug 30, 2005·20 cites·9 claims
- 2584US6577361B1Liquid crystal displayCITIZEN WATCH CO LTD·Filed 1999·Granted Jun 10, 2003·75 cites·20 claims
- 2683US11521865B2Substrate processing method and substrate processing deviceSCREEN HOLDINGS CO LTD·Filed 2018·Granted Dec 6, 2022·4 cites·21 claims
- 2783USD486816SAudio signal amplifierYAMAHA CORP·Filed 2003·Granted Feb 17, 2004·28 cites·1 claims
- 2882US6297864B1Liquid crystal displayCITIZEN WATCH CO LTD·Filed 2000·Granted Oct 2, 2001·20 cites·24 claims
- 2980US9510407B2LED drive circuitCITIZEN HOLDINGS CO LTD·Filed 2015·Granted Nov 29, 2016·3 cites·9 claims
- 3080US8395602B2Color display device and portable electronic appliance using the sameAKIYAMA TAKASHI·Filed 2005·Granted Mar 12, 2013·5 cites·14 claims
- 3180US8389173B2Method for activating fuel cellAKIYAMA TAKASHI·Filed 2005·Granted Mar 5, 2013·5 cites·1 claims
- 3280US7643107B2Liquid crystal display apparatusCITIZEN HOLDINGS CO LTD·Filed 2007·Granted Jan 5, 2010·4 cites·14 claims
- 3379US8212176B2Machining head, nozzle changer and laser beam machining apparatusAKIYAMA TAKASHI·Filed 2007·Granted Jul 3, 2012·11 cites·13 claims
- 3479US6542208B1Liquid crystal display deviceCITIZEN WATCH CO LTD·Filed 2000·Granted Apr 1, 2003·19 cites·12 claims
- 3578US8268497B2Fuel cell with fuel-stoichiometric ratio control portionTAKADA MASAHIRO·Filed 2008·Granted Sep 18, 2012·3 cites·11 claims
- 3677US7745063B2Fuel cell stackPANASONIC CORP·Filed 2005·Granted Jun 29, 2010·3 cites·1 claims
- 3775US10182486B2LED drive circuitCITIZEN WATCH CO LTD·Filed 2015·Granted Jan 15, 2019·2 cites·11 claims
- 3875USD762182SLight-emitting diodeCITIZEN ELECTRONICS·Filed 2014·Granted Jul 26, 2016·13 cites·1 claims
- 3974US7884789B2Display apparatusCITIZEN HOLDINGS CO LTD·Filed 2005·Granted Feb 8, 2011·3 cites·2 claims
- 4074US6786717B2Combustion apparatusNORITZ CORP·Filed 2003·Granted Sep 7, 2004·17 cites·22 claims
- 4173US9508910B2LED moduleCITIZEN HOLDINGS CO LTD·Filed 2012·Granted Nov 29, 2016·3 cites·13 claims
- 4273USD766196SLight-emitting diodeCITIZEN ELECTRONICS·Filed 2014·Granted Sep 13, 2016·13 cites·1 claims
- 4373US7604887B2Electrolyte membrane, membrane electrode assembly using this and fuel cellPANASONIC CORP·Filed 2003·Granted Oct 20, 2009·14 cites·30 claims
- 4473US4187343AProcess for producing non-woven fabricTOYO BOSEKI·Filed 1976·Granted Feb 5, 1980·15 cites·5 claims
- 4572US11261002B2Resin made containerSUNTORY HOLDINGS LTD·Filed 2018·Granted Mar 1, 2022·2 cites·7 claims
- 4672US7498097B2Fuel cell and production method thereofPANASONIC CORP·Filed 2004·Granted Mar 3, 2009·12 cites·14 claims
- 4771US9277615B2LED drive circuitCITIZEN HOLDINGS CO LTD·Filed 2014·Granted Mar 1, 2016·2 cites·12 claims
- 4871US9115889B2Rich-lean combustion burner and combustion apparatusNORITZ CORP·Filed 2012·Granted Aug 25, 2015·2 cites·8 claims
- 4971US9006984B2LED lighting deviceAKIYAMA TAKASHI·Filed 2012·Granted Apr 14, 2015·2 cites·13 claims
- 5071US6292439B1WatchCITIZEN WATCH CO LTD·Filed 1998·Granted Sep 18, 2001·40 cites·20 claims
Showing the top 50 of 189 patent records by PatentIndex Score.
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