Inventor · disambiguated record
Yoshihisa Kiyotoki
Also filed as: KIYOTOKI YOSHIHISA
14 granted patents·8 pending applications·72 citations·filing 1990–2024
89Inventor score
Top patents by PatentIndex Score
22 records- 0190US6959916B2Valve and manufacturing method thereofHITACHI LTD·Filed 2002·Granted Nov 1, 2005·34 cites·30 claims
- 0283US10260651B2Butterfly valve formed of a laminated materialHITACHI GE NUCLEAR ENERGY LTD·Filed 2015·Granted Apr 16, 2019·6 cites·2 claims
- 0372US12502727B2Corrosion and wear resistant overlay, method for forming corrosion and wear resistant overlay, and corrosion and wear resistant valveHITACHI GE NUCLEAR ENERGY LTD·Filed 2021·Granted Dec 23, 2025·0 cites·3 claims
- 0472US2024200679A1Fluid contact member and method of manufacturing fluid contact memberHITACHI GE NUCLEAR ENERGY LTD·Filed 2024·Application pending·0 cites
- 0569US6672330B2Valve bonded with corrosion and wear proof alloy and apparatuses using said valveHITACHI LTD·Filed 2001·Granted Jan 6, 2004·15 cites·33 claims
- 0666US2019193195A1Corrosion and Wear Resistant Overlay, Method for Forming Corrosion and Wear Resistant Overlay, and Corrosion and Wear Resistant ValveHITACHI GE NUCLEAR ENERGY LTD·Filed 2018·Application pending·0 cites
- 0764US8888069B2Valves having high wear-resistance and high corrosion-resistanceMARUNO YUSAKU·Filed 2011·Granted Nov 18, 2014·2 cites·6 claims
- 0863US7584668B2Monitoring system for valve deviceHITACHI LTD·Filed 2007·Granted Sep 8, 2009·4 cites·57 claims
- 0960US11946554B2Fluid contact member and method of manufacturing fluid contact memberHITACHI GE NUCLEAR ENERGY LTD·Filed 2019·Granted Apr 2, 2024·0 cites·7 claims
- 1055US6886809B2Joint construction of cobalt-based alloyHITACHI LTD·Filed 2003·Granted May 3, 2005·4 cites·18 claims
- 1153US10872704B2Water injection deviceHITACHI GE NUCLEAR ENERGY LTD·Filed 2017·Granted Dec 22, 2020·0 cites·6 claims
- 1249US9916908B2Gas supply apparatus and air or nitrogen supply apparatus of nuclear plantHITACHI GE NUCLEAR ENERGY LTD·Filed 2014·Granted Mar 13, 2018·0 cites·8 claims
- 1348US6896978B2Joint construction of cobalt-based alloyHITACHI LTD·Filed 2002·Granted May 24, 2005·2 cites·20 claims
- 1448US2003147769A1Corrosion-resisting and wear-resisting alloy and device using the sameHITACHI LTD·Filed 2002·Application pending·0 cites
- 1546US2007081916A1Production of the metallic parts with the alloyed layer containing dispersed compound particles, and the wear-proof partsCHIGASAKI MITSUO·Filed 2006·Application pending·0 cites
- 1646US2004247477A1Production of the metallic parts with the alloyed layer containing dispersed compound particles, and the wear-proof partsFiled 2004·Application pending·0 cites
- 1746US2014254738A1Alternative air supply and exhaust port for air-operated valveHITACHI GE NUCLEAR ENERGY LTD·Filed 2014·Application pending·0 cites
- 1845US6889957B2Joint construction of cobalt-based alloyHITACHI LTD·Filed 2002·Granted May 10, 2005·1 cites·12 claims
- 1942US11684976B2Method of manufacturing transition piece and transition pieceHITACHI GE NUCLEAR ENERGY LTD·Filed 2020·Granted Jun 27, 2023·0 cites·8 claims
- 2041US2002064678A1Corrosion-resisting and wear-resisting alloy and device using the sameFiled 2001·Application pending·0 cites
- 2136US2003180175A1Corrosion-resisting and wear-resisting alloy and device using the sameHITACHI LTD·Filed 2003·Application pending·0 cites
- 2232US5156197AFloat type liquid level meterHITACHI LTD·Filed 1990·Granted Oct 20, 1992·4 cites·17 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →