Inventor · disambiguated record
Masaaki Niwa
Also filed as: NIWA MASAAKI
37 granted patents·735 citations·filing 1991–2020
98Inventor score
Top patents by PatentIndex Score
37 records- 0195US5739544AQuantization functional device utilizing a resonance tunneling effect and method for producing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Apr 14, 1998·139 cites·18 claims
- 0292US5543351AMethod of producing electrically insulated silicon structureMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Aug 6, 1996·86 cites·16 claims
- 0391US6033928AMethod of manufacturing aggregate of semiconductor micro-needlesMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Mar 7, 2000·98 cites·12 claims
- 0486US6177291B1Method of making aggregate of semiconductor micro-needlesMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Jan 23, 2001·26 cites·8 claims
- 0581US6087197AAggregate of semiconductor micro-needles and method of manufacturing the same, and semiconductor apparatus and method of manufacturing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Jul 11, 2000·44 cites·3 claims
- 0681US5347140AResonant electron transfer deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1992·Granted Sep 13, 1994·51 cites·6 claims
- 0778US10164174B2Magnetoresistance effect element and magnetic memoryUNIV TOHOKU·Filed 2018·Granted Dec 25, 2018·1 cites·25 claims
- 0875US5244828AMethod of fabricating a quantum deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1992·Granted Sep 14, 1993·59 cites·20 claims
- 0973US5296719AQuantum device and fabrication method thereofMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1992·Granted Mar 22, 1994·51 cites·9 claims
- 1071US6955973B2Method for forming a semiconductor deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Oct 18, 2005·15 cites·23 claims
- 1168US5486706AQuantization functional device utilizing a resonance tunneling effect and method for producing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Jan 23, 1996·21 cites·11 claims
- 1265US10658572B2Magnetoresistance effect element and magnetic memoryUNIV TOHOKU·Filed 2018·Granted May 19, 2020·0 cites·14 claims
- 1365US6812101B2Semiconductor device and method for manufacture thereofMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Nov 2, 2004·9 cites·34 claims
- 1463US7554156B2Semiconductor device having a field effect transistor using a high dielectric constant gate insulating film and manufacturing method of the samePANASONIC CORP·Filed 2005·Granted Jun 30, 2009·2 cites·9 claims
- 1562US6489629B1Aggregate of semiconductor micro-needles and method of manufacturing the same, and semiconductor apparatus and method of manufacturing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Dec 3, 2002·5 cites·7 claims
- 1661US11121310B2Spin electronics element and method of manufacturing thereofUNIV TOHOKU·Filed 2019·Granted Sep 14, 2021·0 cites·16 claims
- 1761US10424725B2Spintronics elementUNIV TOHOKU·Filed 2018·Granted Sep 24, 2019·0 cites·11 claims
- 1860US7956413B2Semiconductor device having a field effect transistor using a high dielectric constant gate insulating film and manufacturing method of the samePANASONIC CORP·Filed 2009·Granted Jun 7, 2011·1 cites·10 claims
- 1960US5405454AElectrically insulated silicon structure and producing method thereforMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Apr 11, 1995·17 cites·15 claims
- 2059US6734451B2Aggregate of semiconductor micro-needles and method of manufacturing the same, and semiconductor apparatus and method of manufacturing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted May 11, 2004·6 cites·33 claims
- 2158US7851297B2Dual workfunction semiconductor deviceIMEC·Filed 2008·Granted Dec 14, 2010·2 cites·18 claims
- 2256US11258006B2Magnetic memory element, method for producing same, and magnetic memoryUNIV TOHOKU·Filed 2020·Granted Feb 22, 2022·0 cites·16 claims
- 2356US11062876B2Evaluation method and evaluation apparatus for electronic deviceUNIV TOHOKU·Filed 2019·Granted Jul 13, 2021·0 cites·15 claims
- 2454US8450882B2Energization control apparatusANJIMA TERUYUKI·Filed 2011·Granted May 28, 2013·2 cites·2 claims
- 2553US6559518B1MOS heterostructure, semiconductor device with the structure, and method for fabricating the semiconductor deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted May 6, 2003·13 cites·4 claims
- 2651US5444267AQuantum device utilizing the quantum effectMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Aug 22, 1995·11 cites·8 claims
- 2750US10396274B2Spin electronics element and method of manufacturing thereofUNIV TOHOKU·Filed 2016·Granted Aug 27, 2019·0 cites·15 claims
- 2850US5886389AField-effect transistor and method for producing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Mar 23, 1999·12 cites·10 claims
- 2948US6273959B1Method of cleaning semiconductor deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Aug 14, 2001·15 cites·23 claims
- 3046US5480492AMethod for removing organic or inorganic contaminant from silicon substrate surfaceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Jan 2, 1996·15 cites·21 claims
- 3143US10644234B2Method for producing magnetic memory comprising magnetic tunnel junction elementUNIV TOHOKU·Filed 2017·Granted May 5, 2020·0 cites·16 claims
- 3241US5562802AMethod of producing a quantum device which utilizes the quantum effectMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Oct 8, 1996·6 cites·15 claims
- 3339US5514614AMethod for producing quantization functional device utilizing a resonance tunneling effectMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted May 7, 1996·10 cites·50 claims
- 3439US5422306AMethod of forming semiconductor hetero interfacesMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1992·Granted Jun 6, 1995·12 cites·19 claims
- 3538US5182452AMethod for determining the presence of thin insulating filmsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1991·Granted Jan 26, 1993·6 cites·3 claims
- 3637US9199536B2On-vehicle display device and on-vehicle display programMURANO TAKAHIKO·Filed 2008·Granted Dec 1, 2015·0 cites·10 claims
- 3732US8400099B2Meter system with indicator for vehicleNAKANE HIDEYUKI·Filed 2010·Granted Mar 19, 2013·0 cites·41 claims
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