Inventor · disambiguated record
Masanori Tsukushi
Also filed as: HIRASAWA KUNIO · TSUKUSHI MASANORI
29 granted patents·3 pending applications·306 citations·filing 1974–2015
97Inventor score
Top patents by PatentIndex Score
32 records- 0186US9058947B2Puffer-type gas circuit-breakerHITACHI LTD·Filed 2012·Granted Jun 16, 2015·7 cites·5 claims
- 0286US9035729B2Gas circuit breaker provided with parallel capacitorHITACHI LTD·Filed 2013·Granted May 19, 2015·6 cites·6 claims
- 0382US5543597AGrounding switch gear deviceHITACHI LTD·Filed 1994·Granted Aug 6, 1996·41 cites·16 claims
- 0471US5850065AGas circuit breakerHITACHI LTD·Filed 1997·Granted Dec 15, 1998·24 cites·12 claims
- 0571US5793597APuffer type gas breakerHITACHI LTD·Filed 1996·Granted Aug 11, 1998·26 cites·9 claims
- 0670US5567924ACircuit breaker with parallel resistorHITACHI LTD·Filed 1995·Granted Oct 22, 1996·25 cites·20 claims
- 0765US8957341B2Gas circuit breakerHITACHI LTD·Filed 2012·Granted Feb 17, 2015·2 cites·3 claims
- 0864US4864286ASwitch operation monitoring apparatusHITACHI LTD·Filed 1988·Granted Sep 5, 1989·13 cites·7 claims
- 0961US5072084AGas circuit breakerHITACHI LTD·Filed 1990·Granted Dec 10, 1991·16 cites·7 claims
- 1060US4059741APuffer type gas circuit breakerHITACHI LTD·Filed 1976·Granted Nov 22, 1977·10 cites·8 claims
- 1159US5079392AGas circuit breakerHITACHI LTD·Filed 1990·Granted Jan 7, 1992·17 cites·10 claims
- 1256US3946184ACircuit breakerHITACHI LTD·Filed 1974·Granted Mar 23, 1976·9 cites·3 claims
- 1355US5039831ACircuit breakerHITACHI LTD·Filed 1989·Granted Aug 13, 1991·16 cites·6 claims
- 1455US4105879AMagnetic puffer type gas circuit breakerHITACHI LTD·Filed 1977·Granted Aug 8, 1978·8 cites·15 claims
- 1548US5229561APuffer-type gas circuit breakerHITACHI LTD·Filed 1992·Granted Jul 20, 1993·9 cites·15 claims
- 1647US5777842ATransformer station and breaker apparatusHITACHI LTD·Filed 1996·Granted Jul 7, 1998·11 cites·15 claims
- 1745US5159164AGas circuit breakerHITACHI LTD·Filed 1991·Granted Oct 27, 1992·8 cites·8 claims
- 1845US5153397AGas circuit breakerHITACHI LTD·Filed 1991·Granted Oct 6, 1992·8 cites·6 claims
- 1945US5079391APuffer type gas circuit breaker, contact cover and insulated nozzle of the breakerHITACHI LTD·Filed 1990·Granted Jan 7, 1992·8 cites·12 claims
- 2044US5012051AThree-phase common container-type circuit breakerHITACHI LTD·Filed 1989·Granted Apr 30, 1991·8 cites·5 claims
- 2144US4423298AGas circuit breaker of resistance breaking typeHITACHI LTD·Filed 1981·Granted Dec 27, 1983·5 cites·13 claims
- 2243US2014146433A1Three-Phase Circuit-BreakerHITACHI LTD·Filed 2013·Application pending·0 cites
- 2342US2014190938A1Puffer type gas circuit breakerTSUKUSHI MASANORI·Filed 2012·Application pending·0 cites
- 2441US2014144883A1Gas Circuit BreakerHITACHI LTD·Filed 2013·Application pending·0 cites
- 2540US5045651ASwitchHITACHI LTD·Filed 1990·Granted Sep 3, 1991·7 cites·11 claims
- 2639US4211903AElectromagnetic puffer type gas circuit breakerHITACHI LTD·Filed 1977·Granted Jul 8, 1980·3 cites·7 claims
- 2738US5151566AGas circuit breakerHITACHI LTD·Filed 1990·Granted Sep 29, 1992·5 cites·4 claims
- 2838US4239948AGrounded support tank type gas circuit breakerHITACHI LTD·Filed 1976·Granted Dec 16, 1980·3 cites·12 claims
- 2937US5502290ASwitch mechanismHITACHI LTD·Filed 1995·Granted Mar 26, 1996·5 cites·12 claims
- 3036US9892875B2Gas circuit breakerHITACHI LTD·Filed 2015·Granted Feb 13, 2018·0 cites·8 claims
- 3135US5155312APuffer type gas circuit interrupterHITACHI LTD·Filed 1991·Granted Oct 13, 1992·4 cites·9 claims
- 3231US5274205AGas blast, puffer type circuit breaker with improved nozzleHITACHI LTD·Filed 1993·Granted Dec 28, 1993·2 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →