Inventor · disambiguated record
Naomichi Nakamura
Also filed as: NAKAMURA NAOMICHI
29 granted patents·30 pending applications·273 citations·filing 1993–2022
95Inventor score
Files withJFE STEEL CORP28NIPPON TELEGRAPH & TELEPHONE19KAWASAKI STEEL CO8HITACHI UNISIA AUTOMOTIVE LTD1HYUNDAI MOTOR CO LTD1
Top patents by PatentIndex Score
59 records- 0192US10207328B2Alloy steel powder for powder metallurgy, and sintered bodyJFE STEEL CORP·Filed 2015·Granted Feb 19, 2019·8 cites·4 claims
- 0290US10293407B2Method of producing atomized metal powderJFE STEEL CORP·Filed 2015·Granted May 21, 2019·4 cites·6 claims
- 0388US10710155B2Mixed powder for powder metallurgy, sintered body, and method of manufacturing sintered bodyJFE STEEL CORP·Filed 2016·Granted Jul 14, 2020·4 cites·16 claims
- 0487US5961944AProcess and apparatus for manufacturing polycrystalline silicon, and process for manufacturing silicon wafer for solar cellKAWASAKI STEEL CO·Filed 1996·Granted Oct 5, 1999·99 cites·20 claims
- 0586US6696014B2Iron-based sintered powder metal body, manufacturing method thereof and manufacturing method of iron-based sintered component with high strength and high densityJFE STEEL CORP·Filed 2002·Granted Feb 24, 2004·20 cites·16 claims
- 0685US11654487B2Production method for water-atomized metal powderJFE STEEL CORP·Filed 2019·Granted May 23, 2023·2 cites·4 claims
- 0783US6090361AMethod for producing silicon for use in solar cellsKAWASAKI STEEL CO·Filed 1998·Granted Jul 18, 2000·50 cites·18 claims
- 0878US6514307B2Iron-based sintered powder metal body, manufacturing method thereof and manufacturing method of iron-based sintered component with high strength and high densityKAWASAKI STEEL CO·Filed 2001·Granted Feb 4, 2003·10 cites·2 claims
- 0976US6610120B2Alloyed steel powder for powder metallurgyKAWASAKI STEEL CO·Filed 2001·Granted Aug 26, 2003·8 cites·2 claims
- 1075US6758882B2Alloyed steel powder for powder metallurgyJFE STEEL CORP·Filed 2002·Granted Jul 6, 2004·13 cites·7 claims
- 1174US6231826B1Process and apparatus for refining siliconKAWASAKI STEEL CO·Filed 1999·Granted May 15, 2001·36 cites·3 claims
- 1270US6638335B2Highly compressible iron powderKAWASAKI STEEL CO·Filed 2002·Granted Oct 28, 2003·11 cites·8 claims
- 1369US12030122B2Method of manufacturing soft magnetic dust coreJFE STEEL CORP·Filed 2020·Granted Jul 9, 2024·0 cites·18 claims
- 1467US7347884B2Alloy steel powder for powder metallurgyJFE STEEL CORP·Filed 2004·Granted Mar 25, 2008·5 cites·26 claims
- 1563US11364541B2Partially diffusion-alloyed steel powderJFE STEEL CORP·Filed 2018·Granted Jun 21, 2022·0 cites·6 claims
- 1663US8916268B2Iron powder for dust coresKAWANO TAKASHI·Filed 2008·Granted Dec 23, 2014·1 cites·4 claims
- 1762US11542579B2Iron-based prealloy powder, iron-based diffusion-bonded powder, and iron-based alloy powder for powder metallurgy using the sameHYUNDAI MOTOR CO LTD·Filed 2020·Granted Jan 3, 2023·0 cites·11 claims
- 1861USRE45647EHighly compressible iron powderJFE STEEL CORP·Filed 2014·Granted Aug 11, 2015·0 cites·8 claims
- 1959US11441212B2Alloyed steel powderJFE STEEL CORP·Filed 2018·Granted Sep 13, 2022·0 cites·4 claims
- 2059US10410780B2Iron powder for dust coreJFE STEEL CORP·Filed 2014·Granted Sep 10, 2019·0 cites·2 claims
- 2158US2018361474A9Method of manufacturing soft magnetic dust core and soft magnetic dust coreJFE STEEL CORP·Filed 2016·Application pending·0 cites
- 2257US11414731B2Mixed powder for powder metallurgy, sintered body, and method for producing sintered bodyJFE STEEL CORP·Filed 2018·Granted Aug 16, 2022·0 cites·19 claims
- 2354US10774403B2Iron-based alloy powder for powder metallurgy, and sinter-forged memberJFE STEEL CORP·Filed 2015·Granted Sep 15, 2020·0 cites·4 claims
- 2453US12409948B2Lightning induction system and method thereforNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Granted Sep 9, 2025·0 cites·6 claims
- 2553US2020316688A1Method for manufacturing atomized metal powderJFE STEEL CORP·Filed 2018·Application pending·0 cites
- 2652US10109406B2Iron powder for dust core and insulation-coated iron powder for dust coreJFE STEEL CORP·Filed 2014·Granted Oct 23, 2018·0 cites·4 claims
- 2752US2025166873A1Thunder protection apparatus and thunder protection methodNIPPON TELEGRAPH & TELEPHONE·Filed 2022·Application pending·0 cites
- 2851US10589356B2Method for producing water-atomized metal powderJFE STEEL CORP·Filed 2016·Granted Mar 17, 2020·0 cites·4 claims
- 2951US10010935B2Iron powder for dust coresJFE STEEL CORP·Filed 2013·Granted Jul 3, 2018·0 cites·7 claims
- 3050US2025343405A1Circuit breaker and interruption methodNIPPON TELEGRAPH & TELEPHONE·Filed 2022·Application pending·0 cites
- 3149US2025158393A1Control apparatus, power control system, control method, and programNIPPON TELEGRAPH & TELEPHONE·Filed 2022·Application pending·0 cites
- 3249US2025246387A1Circuit breaker and interruption methodNIPPON TELEGRAPH & TELEPHONE·Filed 2022·Application pending·0 cites
- 3348US2025138076A1Estimation apparatus, estimation method, and programNIPPON TELEGRAPH & TELEPHONE·Filed 2022·Application pending·0 cites
- 3448US2019351483A1Mixed powder for powder metallurgy, sintered body, and method for producing sintered bodyJFE STEEL CORP·Filed 2017·Application pending·0 cites
- 3548US2020001369A1Method for manufacturing soft magnetic iron powderJFE STEEL CORP·Filed 2018·Application pending·0 cites
- 3647US2025192539A1Inrush current prevention apparatus, control apparatus, and inrush current prevention methodNIPPON TELEGRAPH & TELEPHONE·Filed 2022·Application pending·0 cites
- 3747US2025273949A1Determination apparatus, determination method, and programNIPPON TELEGRAPH & TELEPHONE·Filed 2022·Application pending·0 cites
- 3846US11410827B2Fuse having frequency separation functionNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Aug 9, 2022·0 cites·7 claims
- 3946US2025125612A1Control apparatus, control method, and programNIPPON TELEGRAPH & TELEPHONE·Filed 2022·Application pending·0 cites
- 4045US2023275426A1Dc power distribution system, control apparatus, operating state determination method and programNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Application pending·0 cites
- 4145US2008202651A1Method For Manufacturing High-Density Iron-Based Compacted Body and High-Density Iron-Based Sintered BodyJFE STEEL CORP·Filed 2005·Application pending·0 cites
- 4245US2023307906A1Connected dc power distribution system, power adjustment method and programNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Application pending·0 cites
- 4344US2024250522A1Thunder protection deviceNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Application pending·0 cites
- 4444US2024204502A1Short-circuit protection system, short-circuit protection apparatus, short-circuit protection method and programNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Application pending·0 cites
- 4543US2024202413A1Information processing apparatus, fuse selecting method and programNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Application pending·0 cites
- 4643US2018221960A1Reduced iron powder and method for preparing same and bearingJFE STEEL CORP·Filed 2016·Application pending·0 cites
- 4743US2018178291A1Iron-based sintered body and method of manufacturing the sameJFE STEEL CORP·Filed 2016·Application pending·0 cites
- 4843US2024195164A1Dc power distribution system, control apparatus, operation state determination method and programNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Application pending·0 cites
- 4942US2023327424A1Direct current distribution system, control apparatus, anomaly detection method and programNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Application pending·0 cites
- 5042US2022147888A1Device for extracting facility needing lightning countermeasures, method for extracting factility needing lightning countermeasures, and program for extracting facility needing lightning countermeasuresNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Application pending·0 cites
Showing the top 50 of 59 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →