Inventor · disambiguated record
Osamu Nagura
Also filed as: NAGURA OSAMU
12 granted patents·215 citations·filing 1977–2019
92Inventor score
Top patents by PatentIndex Score
12 records- 0197US10536104B2Variable speed generator-motor apparatus and variable speed generator-motor systemHITACHI MITSUBISHI HYDRO CORPORATION·Filed 2016·Granted Jan 14, 2020·14 cites·6 claims
- 0292US10784808B2Variable speed generator-motor apparatus and variable speed generator-motor systemHITACHI MITSUBISHI HYDRO CORPORATION·Filed 2019·Granted Sep 22, 2020·7 cites·1 claims
- 0382US4952852APower system and synchronizing breakers for a variable speed generator motor systemHITACHI LTD·Filed 1988·Granted Aug 28, 1990·48 cites·6 claims
- 0470US4812730AVariable-speed generator/motor systemHITACHI LTD·Filed 1987·Granted Mar 14, 1989·28 cites·8 claims
- 0570US4136068ACellulose ester graft polymer/acrylic co-polymer/amino resin water dispersible coating compositionNIPPON OILS & FATS CO LTD·Filed 1977·Granted Jan 23, 1979·15 cites·10 claims
- 0666US4870339AVariable-speed power generating systemHITACHI LTD·Filed 1988·Granted Sep 26, 1989·22 cites·9 claims
- 0760US4839406AFluidity controlling agent for paintsNIPPON OILS & FATS CO LTD·Filed 1987·Granted Jun 13, 1989·17 cites·5 claims
- 0853US5886417AElectrical power generating installation and method of operating sameHITACHI LTD·Filed 1997·Granted Mar 23, 1999·30 cites·22 claims
- 0951US4980629AAC-excited generator/motor apparatusHITACHI LTD·Filed 1989·Granted Dec 25, 1990·13 cites·19 claims
- 1046US4652807AStarting method for induction motorsHITACHI LTD·Filed 1985·Granted Mar 24, 1987·9 cites·5 claims
- 1139US4926541AMethod of assembling wound rotor of vertical type adjustable speed hydroelectric rotating machine at its installation siteHITACHI LTD·Filed 1989·Granted May 22, 1990·10 cites·6 claims
- 1232US4883858AThermosetting resin from amine terminated amic acid and bis-maleimideNIPPON OILS & FATS CO LTD·Filed 1988·Granted Nov 28, 1989·2 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →