Inventor · disambiguated record
Eiji Nakayama
Also filed as: NAKAYAMA EIJI
51 granted patents·21 pending applications·1,013 citations·filing 1976–2023
98Inventor score
Top patents by PatentIndex Score
72 records- 0198US6988386B1Knitted surface fastenerYKK CORP·Filed 2005·Granted Jan 24, 2006·88 cites·5 claims
- 0294US6495932B1DC power source unitHITACHI KOKI KK·Filed 2000·Granted Dec 17, 2002·72 cites·7 claims
- 0392US7932697B2Power toolHITACHI KOKI KK·Filed 2010·Granted Apr 26, 2011·6 cites·5 claims
- 0492US6683439B2DC power source unit with battery charging functionHITACHI KOKI KK·Filed 2002·Granted Jan 27, 2004·136 cites·7 claims
- 0589US7932701B2Power toolHITACHI KOKI KK·Filed 2010·Granted Apr 26, 2011·4 cites·7 claims
- 0688US6566843B2DC power source unit with battery charging functionHITACHI KOKI KK·Filed 2002·Granted May 20, 2003·81 cites·17 claims
- 0787US6172860B1DC power source unit alarming before electrically powered tool is overheated and stopping power supply thereafterHITACHI KOKI KK·Filed 1998·Granted Jan 9, 2001·66 cites·12 claims
- 0887US5632595AGlass plate conveying apparatusCENTRAL GLASS CO LTD·Filed 1995·Granted May 27, 1997·45 cites·4 claims
- 0987US4051935AWork toolNAKAYAMA EIJI·Filed 1976·Granted Oct 4, 1977·38 cites·7 claims
- 1086US6848281B2Stretchable warp knitted fabricYKK CORP·Filed 2003·Granted Feb 1, 2005·22 cites·6 claims
- 1186US5831765ATwo-dimensional/three-dimensional compatible type image displaySANYO ELECTRIC CO·Filed 1996·Granted Nov 3, 1998·119 cites·18 claims
- 1282US8797895B2Radio relay station, radio relay method, radio communication system, location management device, radio terminal, and radio communication methodBABA TAKASHI·Filed 2009·Granted Aug 5, 2014·10 cites·5 claims
- 1382US8237404B2Adaptor, assembly of battery pack and adaptor, and electric tool with the sameTAKANO NOBUHIRO·Filed 2007·Granted Aug 7, 2012·21 cites·9 claims
- 1482US5751479AThree-dimensional displaySANYO ELECTRIC CO·Filed 1995·Granted May 12, 1998·72 cites·21 claims
- 1578US9654186B2Portable terminalKYOCERA CORP·Filed 2016·Granted May 16, 2017·3 cites·6 claims
- 1676US9065155B2Adaptor, assembly of battery pack and adaptor, and electric tool with the sameTAKANO NOBUHIRO·Filed 2012·Granted Jun 23, 2015·5 cites·4 claims
- 1776US8526999B2Signal converter, wireless signal transmission system, and wireless signal reception systemNAKAYAMA EIJI·Filed 2009·Granted Sep 3, 2013·6 cites·6 claims
- 1876US7836563B2Fastener stringer and slide fastenerYKK CORP·Filed 2007·Granted Nov 23, 2010·6 cites·8 claims
- 1975US7992266B2Fastener stringer and slide fastenerYKK CORP·Filed 2010·Granted Aug 9, 2011·4 cites·2 claims
- 2074US9284647B2Method for coating sliding surface of high-temperature member, high-temperature member and electrode for electro-discharge surface treatmentOCHIAI HIROYUKI·Filed 2009·Granted Mar 15, 2016·2 cites·7 claims
- 2174US8151418B2Stretchable fastener stringer and slide fastenerNAKAYAMA EIJI·Filed 2009·Granted Apr 10, 2012·7 cites·10 claims
- 2271US9768713B2Electric toolHITACHI KOKI KK·Filed 2014·Granted Sep 19, 2017·2 cites·4 claims
- 2370US7006156B2Image data output device and receiving deviceSANYO ELECTRIC CO·Filed 2001·Granted Feb 28, 2006·10 cites·17 claims
- 2470US6843077B1Knitted surface fastenerYKK CORP·Filed 2004·Granted Jan 18, 2005·7 cites·7 claims
- 2570US6026668AElectrically-powered cutting and bending machineHITACHI KOKI KK·Filed 1999·Granted Feb 22, 2000·28 cites·9 claims
- 2669US8319379B2Portable electrical power toolONOSE AKIRA·Filed 2009·Granted Nov 27, 2012·12 cites·8 claims
- 2769US6992464B2Battery charger capable of indicating time remaining to achieve full chargeHITACHI KOKI KK·Filed 2003·Granted Jan 31, 2006·23 cites·14 claims
- 2866US9179744B2Fastener and article provided with fastenerTAKANI GO·Filed 2010·Granted Nov 10, 2015·2 cites·10 claims
- 2965US2025226639A1Surface emitting laser, surface emitting laser array, and electronic deviceSONY GROUP CORP·Filed 2023·Application pending·0 cites
- 3064US8686675B2Power toolKAWANO YOSHIKAZU·Filed 2010·Granted Apr 1, 2014·5 cites·16 claims
- 3164US2025079798A1Surface emitting device, light source device, and method for manufacturing surface emitting deviceSONY GROUP CORP·Filed 2022·Application pending·0 cites
- 3263US2025023329A1Surface emitting element and individual authentication deviceSONY GROUP CORP·Filed 2022·Application pending·0 cites
- 3362US8191704B2Conveying apparatusISHINO HARUKI·Filed 2008·Granted Jun 5, 2012·8 cites·15 claims
- 3462US7943407B2Method for manufacturing semiconductor laserSONY CORP·Filed 2009·Granted May 17, 2011·2 cites·8 claims
- 3561US7999016B2Semiconductor encapsulating epoxy resin composition and semiconductor deviceSHINETSU CHEMICAL CO·Filed 2005·Granted Aug 16, 2011·2 cites·7 claims
- 3661US6534885B2Adapter for DC power source unitHITACHI KOKI KK·Filed 2001·Granted Mar 18, 2003·15 cites·19 claims
- 3761US2008061742A1Power toolFUNABASHI KAZUHIKO·Filed 2007·Application pending·0 cites
- 3860US2025210934A1Semiconductor light emitting deviceSONY GROUP CORP·Filed 2023·Application pending·0 cites
- 3960US2024313507A1Vertical cavity surface emitting laser device, vertical cavity surface emitting laser device array, and method of producing a vertical cavity surface emitting laser deviceSONY GROUP CORP·Filed 2022·Application pending·0 cites
- 4060US2024128722A1Vertical cavity surface emitting laser deviceSONY GROUP CORP·Filed 2022·Application pending·0 cites
- 4160US2011242717A1Power toolHITACHI KOKI KK·Filed 2011·Application pending·0 cites
- 4259US2024120709A1Surface emitting element, method for detecting optic characteristic, and method for adjusting optical characteristicSONY GROUP CORP·Filed 2022·Application pending·0 cites
- 4358US8896002B2Method for producing semiconductor laser, semiconductor laser, optical pickup, and optical disk driveKODA RINTARO·Filed 2009·Granted Nov 25, 2014·1 cites·12 claims
- 4457US12166441B2Work machineKOKI HOLDINGS CO LTD·Filed 2021·Granted Dec 10, 2024·0 cites·16 claims
- 4557US8415922B2Power toolFUNABASHI KAZUHIKO·Filed 2008·Granted Apr 9, 2013·3 cites·24 claims
- 4656US8582495B2Relay station and radio communication relay methodNINAGAWA TAKAYASU·Filed 2009·Granted Nov 12, 2013·1 cites·8 claims
- 4755US6967465B2DC power source unit with battery charging functionHITACHI KOKI KK·Filed 2003·Granted Nov 22, 2005·7 cites·9 claims
- 4855US5413204AGlass plate positioning and supplying machineCENTRAL GLASS CO LTD·Filed 1994·Granted May 9, 1995·16 cites·8 claims
- 4955US2024250503A1Semiconductor light-emitting device and method of producing a semiconductor light-emitting deviceSONY GROUP CORP·Filed 2022·Application pending·0 cites
- 5055US2025239834A1Surface emitting element, light-emitting device, and method of manufacturing surface emitting elementSONY GROUP CORP·Filed 2022·Application pending·0 cites
Showing the top 50 of 72 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →