Inventor · disambiguated record
Masao Nakayama
Also filed as: NAKAYAMA MASAO
97 granted patents·25 pending applications·765 citations·filing 1993–2025
99Inventor score
Files withSEIKO EPSON CORP64TOYOTA MOTOR CO LTD10NAKAYAMA MASAO8MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7PANASONIC CORP6
Top patents by PatentIndex Score
122 records- 0195US11766864B2Liquid ejecting head, liquid ejecting apparatus, and actuatorSEIKO EPSON CORP·Filed 2021·Granted Sep 26, 2023·2 cites·16 claims
- 0295US6208023B1Lead frame for use with an RF powered semiconductorMATSUSHITA ELECTRONICS CORP·Filed 1998·Granted Mar 27, 2001·253 cites·18 claims
- 0392USD396847SSemiconductor deviceMATSUSHITA ELECTRONICS CORP·Filed 1997·Granted Aug 11, 1998·67 cites·1 claims
- 0490USD396846SSemiconductor deviceMATSUSHITA ELECTRONICS CORP·Filed 1997·Granted Aug 11, 1998·44 cites·1 claims
- 0589US9770907B2MEMS device, liquid ejecting head, and liquid ejecting apparatusSEIKO EPSON CORP·Filed 2016·Granted Sep 26, 2017·3 cites·6 claims
- 0688US7781946B2Piezoelectric element, ink jet recording head and ink jet printerSEIKO EPSON CORP·Filed 2008·Granted Aug 24, 2010·14 cites·6 claims
- 0787US8040186B2Radio frequency amplifier circuit and mobile communication terminal using the samePANASONIC CORP·Filed 2009·Granted Oct 18, 2011·15 cites·21 claims
- 0886US7560854B2Piezoelectric element and its manufacturing methodSEIKO EPSON CORP·Filed 2008·Granted Jul 14, 2009·13 cites·3 claims
- 0984US7340229B2High frequency amplification circuit and mobile communication terminal using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Mar 4, 2008·12 cites·23 claims
- 1083US6553031B1Communication node apparatus with routing tables in cache memoriesHITACHI LTD·Filed 1999·Granted Apr 22, 2003·169 cites·9 claims
- 1182US12023929B2Liquid ejecting head, liquid ejecting apparatus, and actuatorSEIKO EPSON CORP·Filed 2023·Granted Jul 2, 2024·0 cites·13 claims
- 1282US7466537B2Capacitor and its manufacturing methodSEIKO EPSON CORP·Filed 2007·Granted Dec 16, 2008·9 cites·9 claims
- 1381US7421255B2Transmission apparatus and mobile communication terminal apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Sep 2, 2008·9 cites·13 claims
- 1481US2025353299A1Liquid discharge head, liquid discharge device and piezoelectric elementSEIKO EPSON CORP·Filed 2025·Application pending·0 cites
- 1580US8770724B2Piezoelectric element, liquid ejecting head, and liquid ejecting apparatusNAKAYAMA MASAO·Filed 2012·Granted Jul 8, 2014·3 cites·8 claims
- 1680US6853235B2High frequency switch, amplifying circuit, and mobile communication terminalMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Feb 8, 2005·27 cites·14 claims
- 1779US8672455B2Piezoelectric element, piezoelectric actuator, droplet-ejecting head, droplet-ejecting apparatus, and method for manufacturing piezoelectric elementOHASHI KOJI·Filed 2011·Granted Mar 18, 2014·3 cites·9 claims
- 1878US10525707B2Liquid ejecting head, liquid ejecting apparatus, and piezoelectric deviceSEIKO EPSON CORP·Filed 2018·Granted Jan 7, 2020·1 cites·11 claims
- 1978US10500853B2Piezoelectric device, liquid ejecting head, and liquid ejecting apparatusSEIKO EPSON CORP·Filed 2018·Granted Dec 10, 2019·1 cites·20 claims
- 2078US9969162B2MEMS device, liquid ejecting head, and liquid ejecting apparatusSEIKO EPSON CORP·Filed 2017·Granted May 15, 2018·1 cites·12 claims
- 2177US7528034B2Method for forming ferroelectric capacitor, ferroelectric capacitor and electronic deviceSEIKO EPSON CORP·Filed 2006·Granted May 5, 2009·5 cites·1 claims
- 2276US7639080B2Radio frequency amplifier circuit and mobile communication terminal using the samePANASONIC CORP·Filed 2007·Granted Dec 29, 2009·8 cites·2 claims
- 2375US10000061B2Piezoelectric device, liquid ejecting head, and liquid ejecting apparatusSEIKO EPSON CORP·Filed 2016·Granted Jun 19, 2018·2 cites·21 claims
- 2475US8342660B2Piezoelectric element, method for manufacturing the same, piezoelectric actuator, liquid ejecting head, and liquid ejecting apparatusSEIKO EPSON CORP·Filed 2010·Granted Jan 1, 2013·4 cites·10 claims
- 2574US12219876B2Method for producing piezoelectric actuatorSEIKO EPSON CORP·Filed 2022·Granted Feb 4, 2025·0 cites·8 claims
- 2674US10001101B2Fuel injection valveSUGIYAMA NATSUKI·Filed 2014·Granted Jun 19, 2018·3 cites·16 claims
- 2774US9815024B2Electrically heated catalyst device and its manufacturing methodTOYOTA MOTOR CO LTD·Filed 2015·Granted Nov 14, 2017·2 cites·4 claims
- 2874US9464549B2Electrically heated catalyst device and its manufacturing methodTOYOTA MOTOR CO LTD·Filed 2015·Granted Oct 11, 2016·2 cites·9 claims
- 2973US10068404B2Coin conveying deviceFUJI ELECTRIC CO LTD·Filed 2017·Granted Sep 4, 2018·1 cites·6 claims
- 3072US10071343B2Electrically heated catalyst device and its manufacturing methodTOYOTA MOTOR CO LTD·Filed 2014·Granted Sep 11, 2018·2 cites·6 claims
- 3172US9842453B2Banknote processing deviceFUJI ELECTRIC CO LTD·Filed 2016·Granted Dec 12, 2017·1 cites·10 claims
- 3271US9522536B2Piezoelectric device, liquid ejecting head, liquid ejecting apparatus and manufacturing method of piezoelectric deviceSEIKO EPSON CORP·Filed 2015·Granted Dec 20, 2016·1 cites·13 claims
- 3368US8305730B2Capacitor and its manufacturing methodNAKAYAMA MASAO·Filed 2011·Granted Nov 6, 2012·2 cites·8 claims
- 3468US2021167276A1Method for Producing Piezoelectric ActuatorSEIKO EPSON CORP·Filed 2020·Application pending·0 cites
- 3567US12138926B2Piezoelectric substrate, piezoelectric element and liquid ejection headSEIKO EPSON CORP·Filed 2022·Granted Nov 12, 2024·0 cites·7 claims
- 3667US7217576B2Method for manufacturing ferroelectric capacitor, method for manufacturing ferroelectric memory, ferroelectric capacitor and ferroelectric memorySEIKO EPSON CORP·Filed 2005·Granted May 15, 2007·2 cites·9 claims
- 3765US12310242B2Piezoelectric element and liquid ejection headSEIKO EPSON CORP·Filed 2022·Granted May 20, 2025·0 cites·8 claims
- 3865US11195904B2High-frequency transistorPANASONIC SEMICONDUCTOR SOLUTIONS CO LTD·Filed 2020·Granted Dec 7, 2021·0 cites·12 claims
- 3964US8870352B2Piezoelectric device and method for manufacturing the same, piezoelectric actuator, liquid ejecting head, and liquid ejecting apparatusNAKAYAMA MASAO·Filed 2010·Granted Oct 28, 2014·1 cites·7 claims
- 4064US6930340B2Memory cell array including ferroelectric capacitors, method for making the same, and ferroelectric memory deviceSEIKO EPSON CORP·Filed 2003·Granted Aug 16, 2005·9 cites·11 claims
- 4163US7425872B2Radio frequency power amplifierMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2006·Granted Sep 16, 2008·5 cites·16 claims
- 4262US11858270B2Liquid ejection head, liquid ejection apparatus, piezoelectric device, and method for manufacturing piezoelectric deviceSEIKO EPSON CORP·Filed 2021·Granted Jan 2, 2024·0 cites·21 claims
- 4362US10302040B2Cylinder head for internal combustion engineTOYOTA MOTOR CO LTD·Filed 2018·Granted May 28, 2019·0 cites·8 claims
- 4462US8678566B2Piezoelectric element, method for manufacturing the same, piezoelectric actuator, liquid ejecting head, and liquid ejecting apparatusNAKAYAMA MASAO·Filed 2011·Granted Mar 25, 2014·2 cites·11 claims
- 4561US11878526B2Liquid ejecting head and liquid ejecting apparatusSEIKO EPSON CORP·Filed 2022·Granted Jan 23, 2024·0 cites·16 claims
- 4661US11173715B2Liquid discharge head and printerSEIKO EPSON CORP·Filed 2020·Granted Nov 16, 2021·0 cites·7 claims
- 4760US10913272B2Liquid ejecting head and liquid ejecting apparatusSEIKO EPSON CORP·Filed 2019·Granted Feb 9, 2021·0 cites·7 claims
- 4860US2025187335A1Actuator, liquid ejection head, and printerSEIKO EPSON CORP·Filed 2024·Application pending·0 cites
- 4959US10850515B2Liquid ejecting head and liquid ejecting apparatusSEIKO EPSON CORP·Filed 2019·Granted Dec 1, 2020·0 cites·15 claims
- 5059US10773523B2Liquid discharge head, liquid discharge apparatus, and piezoelectric deviceSEIKO EPSON CORP·Filed 2019·Granted Sep 15, 2020·0 cites·15 claims
Showing the top 50 of 122 patent records by PatentIndex Score.
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