Inventor · disambiguated record
Atsuhiko Nakamura
Also filed as: NAKAMURA ATSUHIKO
10 granted patents·95 citations·filing 1991–2020
86Inventor score
Top patents by PatentIndex Score
10 records- 0166US5175483AMethod and an apparatus for computing moment of inertia in a motor speed controller, and a speed control method and apparatus for a motorHITACHI LTD·Filed 1991·Granted Dec 29, 1992·27 cites·34 claims
- 0265US11437944B2Power conversion deviceHITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD·Filed 2019·Granted Sep 6, 2022·0 cites·15 claims
- 0362US5816913AMethod and apparatus for measuring virtual time difference or virtual distance between mobile bodies, and storage medium storing programs for causing a computer to execute the methodSEGA ENTERPRISES KK·Filed 1996·Granted Oct 6, 1998·39 cites·8 claims
- 0461US12061236B2Power conversion device, rotating machine system, and diagnosis methodHITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD·Filed 2019·Granted Aug 13, 2024·0 cites·11 claims
- 0561US11575338B2Power conversion deviceHITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD·Filed 2020·Granted Feb 7, 2023·0 cites·14 claims
- 0658US11424707B2Power conversion apparatusHITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD·Filed 2018·Granted Aug 23, 2022·0 cites·13 claims
- 0757US11870384B2Speed calculation device and power conversion deviceHITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD·Filed 2018·Granted Jan 9, 2024·0 cites·14 claims
- 0854US7920395B2Pulse width modulation method for a power converterHITACHI LTD·Filed 2008·Granted Apr 5, 2011·3 cites·2 claims
- 0953US6007423AVirtual course display method and game machine using the sameSEGA ENTERPRISES KK·Filed 1996·Granted Dec 28, 1999·24 cites·7 claims
- 1038US7433403B2Pulse width modulation method for a power converterHITACHI LTD·Filed 2003·Granted Oct 7, 2008·2 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →