Inventor · disambiguated record
Masafumi Nakada
Also filed as: NAKADA MASAFUMI
50 granted patents·3 pending applications·874 citations·filing 1996–2012
99Inventor score
Top patents by PatentIndex Score
53 records- 0194US6301088B1Magnetoresistance effect device and method of forming the same as well as magnetoresistance effect sensor and magnetic recording systemNEC CORP·Filed 1999·Granted Oct 9, 2001·73 cites·14 claims
- 0293US6624987B1Magnetic head with a tunnel junction including metallic material sandwiched between one of an oxide and a nitride of the metallic materialNEC CORP·Filed 2000·Granted Sep 23, 2003·41 cites·3 claims
- 0393US6542342B1Magnetoresistive effect transducer having longitudinal bias layer directly connected to free layerNEC CORP·Filed 1999·Granted Apr 1, 2003·69 cites·1 claims
- 0493US6538861B1Magnetoresistive head having ferromagnetic tunnel junction film with a smaller resistance at a terminal portion than a central portion, magnetic resistance detection system with the magnetoresistive head and a magnetic storage system using itNEC CORP·Filed 2000·Granted Mar 25, 2003·44 cites·33 claims
- 0591US7162109B2Optical modulator and method of manufacturing sameNEC CORP·Filed 2005·Granted Jan 9, 2007·12 cites·29 claims
- 0689US6950290B2Magnetoresistive effect transducer having longitudinal bias layer directly connected to free layerNEC CORP·Filed 2002·Granted Sep 27, 2005·21 cites·18 claims
- 0788US6999287B2Magneto-resistance effect element, magneto-resistance effect head, magneto-resistance transducer system, and magnetic storage systemNEC CORP·Filed 2004·Granted Feb 14, 2006·21 cites·11 claims
- 0887US6333842B1Magneto-resistance effect type composite head and production method thereofNEC CORP·Filed 1998·Granted Dec 25, 2001·49 cites·23 claims
- 0986US6490139B1Magneto-resistive element and magnetic head for data writing/readingNEC CORP·Filed 2000·Granted Dec 3, 2002·33 cites·11 claims
- 1086US5766743AMagnetoresistance effect film, a method of manufacturing the same, and magnetoresistance effect deviceNEC CORP·Filed 1996·Granted Jun 16, 1998·57 cites·12 claims
- 1185US7272270B2Optical modulator and method of manufacturing sameNEC CORP·Filed 2006·Granted Sep 18, 2007·7 cites·22 claims
- 1284US7161774B2Magneto-resistance effect element, magneto-resistance effect head, magneto-resistance transducer system, and magnetic storage systemNEC CORP·Filed 2006·Granted Jan 9, 2007·7 cites·5 claims
- 1384US5932343AMagnetic resistance effect element and method for manufacture thereofNEC CORP·Filed 1997·Granted Aug 3, 1999·39 cites·32 claims
- 1482US7372673B2Magnetoresistive effect transducer having longitudinal bias layer and control layer directly connected to free layerNEC CORP·Filed 2005·Granted May 13, 2008·7 cites·5 claims
- 1582US7369375B2Magneto-resistance effect element and magneto-resistance effect headNEC CORP·Filed 2006·Granted May 6, 2008·6 cites·15 claims
- 1682US6903908B2Magnetoresistive effect sensor with barrier layer smoothed by composition of lower shield layerNEC CORP·Filed 2001·Granted Jun 7, 2005·16 cites·7 claims
- 1781US8358891B2Waveguide type optical deviceNEC CORP·Filed 2008·Granted Jan 22, 2013·6 cites·9 claims
- 1881US6798626B2Magnetoresistive effect element having a ferromagnetic tunnel junction film with an oxide or nitride of a metallic materialNEC CORP·Filed 2003·Granted Sep 28, 2004·13 cites·3 claims
- 1981US6747853B2Magneto-resistance effect element, magneto-resistance effect head, magneto-resistance transducer system, and magnetic storage systemNEC CORP·Filed 2003·Granted Jun 8, 2004·13 cites·5 claims
- 2081US6452762B1Magneto-resistive element and production method thereof, magneto-resistive head, and magnetic recording/reproducing apparatusNEC CORP·Filed 2000·Granted Sep 17, 2002·15 cites·8 claims
- 2180US6718621B1Magnetoresistive head production methodNEC CORP·Filed 2000·Granted Apr 13, 2004·15 cites·12 claims
- 2279US6341053B1Magnetic tunnel junction elements and their fabrication methodNEC CORP·Filed 1998·Granted Jan 22, 2002·81 cites·13 claims
- 2378US6934132B2Magneto-resistance effect element, magneto-resistance effect head, magneto-resistance transducer system, and magnetic storage systemNEC CORP·Filed 2001·Granted Aug 23, 2005·12 cites·5 claims
- 2476US8116600B2Optical phase modulation element and optical modulator using the sameOKAMOTO DAISUKE·Filed 2007·Granted Feb 14, 2012·5 cites·11 claims
- 2574US8515225B2Optical device, method for manufacturing the same and optical integrated device using the sameNAKADA MASAFUMI·Filed 2009·Granted Aug 20, 2013·2 cites·9 claims
- 2674US6083632AMagnetoresistive effect film and method of manufacture thereofNEC CORP·Filed 1998·Granted Jul 4, 2000·35 cites·6 claims
- 2773US5889640AMagnetoresistive element and sensor having optimal cross pointNEC CORP·Filed 1996·Granted Mar 30, 1999·24 cites·12 claims
- 2872US6639766B2Magneto-resistance effect type composite head and production method thereofNEC CORP·Filed 2001·Granted Oct 28, 2003·8 cites·13 claims
- 2971US8254745B2Optical device, optical integrated device, and method of manufacturing the sameNAKADA MASAFUMI·Filed 2008·Granted Aug 28, 2012·3 cites·14 claims
- 3070US6051309AMagnetoresistance effect film and method for making the sameNEC CORP·Filed 1997·Granted Apr 18, 2000·21 cites·23 claims
- 3168US7920769B2Optical element, integrated optic device and optical information transmission systemNEC CORP·Filed 2007·Granted Apr 5, 2011·2 cites·19 claims
- 3267US6493195B1Magnetoresistance element, with lower electrode anti-erosion/flaking layerNEC CORP·Filed 2000·Granted Dec 10, 2002·13 cites·16 claims
- 3366US7298596B2Magneto-resistance effect element, magneto-resistance effect head, magneto-resistance transducer system, and magnetic storage systemNEC CORP·Filed 2006·Granted Nov 20, 2007·2 cites·7 claims
- 3466US7265949B2Magneto-resistance effect element, magneto-resistance effect head, magneto-resistance transducer system, and magnetic storage systemNEC CORP·Filed 2006·Granted Sep 4, 2007·2 cites·7 claims
- 3565US6174736B1Method of fabricating ferromagnetic tunnel junction deviceNEC CORP·Filed 1998·Granted Jan 16, 2001·17 cites·14 claims
- 3664US7277261B2Magneto-resistance effect element, magneto-resistance effect head, magneto-resistance transducer system, and magnetic storage systemNEC CORP·Filed 2006·Granted Oct 2, 2007·2 cites·11 claims
- 3763US7120326B2Optical element, optical integrated device, optical information transmission system, and manufacturing methods thereofNAT INST OF ADVANCED IND SCIEN·Filed 2004·Granted Oct 10, 2006·7 cites·21 claims
- 3862US8519323B2Electric field/magnetic field sensors and methods of fabricating the sameNAKADA MASAFUMI·Filed 2012·Granted Aug 27, 2013·1 cites·9 claims
- 3961US5989690AMagnetoresistance effect film, a method of manufacturing the same, and magnetoresistance effect deviceNEC CORP·Filed 1998·Granted Nov 23, 1999·19 cites·57 claims
- 4056US6215631B1Magnetoresistive effect film and manufacturing method thereforNEC CORP·Filed 1997·Granted Apr 10, 2001·18 cites·20 claims
- 4154US6147843AMagnetoresistive effect element having magnetoresistive layer and underlying metal layerNEC CORP·Filed 1997·Granted Nov 14, 2000·17 cites·13 claims
- 4251US6570744B1Magnetoresistance effect film and deviceTDK CORP·Filed 2000·Granted May 27, 2003·4 cites·30 claims
- 4350US6022633AMagnetoresistive effect element and magnetoresistive effect sensorNEC CORP·Filed 1997·Granted Feb 8, 2000·8 cites·26 claims
- 4449US8153955B2Electric field sensor and method for fabricating the sameNAKADA MASAFUMI·Filed 2006·Granted Apr 10, 2012·1 cites·4 claims
- 4547US7158355B2Magneto-resistance effect element, magneto-resistance effect head, magneto-resistance transducer system, and magnetic storage systemNEC CORP·Filed 2005·Granted Jan 2, 2007·0 cites·4 claims
- 4641US8233753B2Electric field sensor, magnetic field sensor, electromagnetic field sensor and electromagnetic field measuring system using these sensorsIWANAMI MIZUKI·Filed 2006·Granted Jul 31, 2012·0 cites·19 claims
- 4740US2006027290A1Microstructure and manufacturing process thereofNEC CORP·Filed 2005·Application pending·0 cites
- 4839US8654331B2Electromagnetic field measurement apparatusIWANAMI MIZUKI·Filed 2009·Granted Feb 18, 2014·0 cites·19 claims
- 4939US6781800B2Magnetoresistance effect film and deviceTDK CORP·Filed 2003·Granted Aug 24, 2004·0 cites·29 claims
- 5036US6775110B1Magnetoresistance effect device with a Ta, Hf, or Zr sublayer contacting an NiFe layer in a magneto resistive structureTDK CORP·Filed 1998·Granted Aug 10, 2004·5 cites·13 claims
Showing the top 50 of 53 patent records by PatentIndex Score.
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