Inventor · disambiguated record
Norikazu Koyuhara
Also filed as: KOYUHARA NORIKAZU
9 granted patents·1 pending application·33 citations·filing 1995–2022
81Inventor score
Top patents by PatentIndex Score
10 records- 0175US10919809B2MnZn ferrite and its production methodHITACHI METALS LTD·Filed 2017·Granted Feb 16, 2021·1 cites·6 claims
- 0270US7061355B2Ferrite core, CATV equipment and bi-directional CATV systemHITACHI METALS LTD·Filed 2003·Granted Jun 13, 2006·11 cites·5 claims
- 0364US5815062AMagnetic coreHITACHI METALS LTD·Filed 1996·Granted Sep 29, 1998·19 cites·10 claims
- 0461US11242288B2Sintered Ni ferrite body, coil device, and method for producing sintered Ni ferrite bodyHITACHI METALS LTD·Filed 2018·Granted Feb 8, 2022·0 cites·11 claims
- 0560US2023290554A1SINTERED MnZn FERRITE AND ITS PRODUCTION METHODPROTERIAL LTD·Filed 2022·Application pending·0 cites
- 0653US11398328B2Sintered MnZn ferrite bodyHITACHI METALS LTD·Filed 2018·Granted Jul 26, 2022·0 cites·5 claims
- 0745US10950375B2MnZn ferrite core and its production methodHITACHI METALS LTD·Filed 2017·Granted Mar 16, 2021·0 cites·8 claims
- 0841US10937579B2MnZn-ferrite and its production methodHITACHI METALS LTD·Filed 2015·Granted Mar 2, 2021·0 cites·9 claims
- 0938US10304602B2MnZn-based ferrite and method for manufacturing the sameHITACHI METALS LTD·Filed 2015·Granted May 28, 2019·0 cites·7 claims
- 1023US5618464ANi ferrite and core made of Ni ferrite for power suppliesHITACHI FERRITE LTD·Filed 1995·Granted Apr 8, 1997·2 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →