Inventor · disambiguated record
Ayumu Morita
Also filed as: MORITA AYUMU
47 granted patents·14 pending applications·377 citations·filing 1998–2014
98Inventor score
Files withHITACHI LTD43MORITA AYUMU3HITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD2SATO TAKASHI2YAMAZAKI MIKI2
Top patents by PatentIndex Score
61 records- 0192US8796570B2Interlock device of draw-out type circuit breaker, draw-out type circuit breaker, and power distribution boardKOBAYASHI MASATO·Filed 2012·Granted Aug 5, 2014·11 cites·7 claims
- 0290US6816048B2Electromagnet and actuating mechanism for switch device, using thereofHITACHI LTD·Filed 2001·Granted Nov 9, 2004·34 cites·5 claims
- 0389US8946581B2SwitchgearHITACHI LTD·Filed 2013·Granted Feb 3, 2015·15 cites·15 claims
- 0487US8791379B2SwitchgearKIKUKAWA SHUICHI·Filed 2011·Granted Jul 29, 2014·8 cites·12 claims
- 0586US9238784B2Grease for electrical contact and slide electricity structure, power switch, vacuum circuit breaker, vacuum insulated switchgear, and vacuum-insulated switchgear assembling methodSATO TAKASHI·Filed 2012·Granted Jan 19, 2016·4 cites·8 claims
- 0685US7425687B2Vacuum insulated switchgearHITACHI LTD·Filed 2006·Granted Sep 16, 2008·12 cites·16 claims
- 0781US8570121B2Air circuit breakerSAWADA MASASHI·Filed 2011·Granted Oct 29, 2013·7 cites·6 claims
- 0881US7911303B2Circuit breaker and opening and closing method thereofHITACHI LTD·Filed 2007·Granted Mar 22, 2011·13 cites·10 claims
- 0981US6940376B2Electromagnet and actuating mechanism for switch device, using thereofHITACHI LTD·Filed 2004·Granted Sep 6, 2005·15 cites·3 claims
- 1080US6498314B2Vacuum switch and vacuum switchgear using the sameHITACHI LTD·Filed 2001·Granted Dec 24, 2002·24 cites·20 claims
- 1179US7902480B2Vacuum insulated switchgearHITACHI LTD·Filed 2007·Granted Mar 8, 2011·6 cites·6 claims
- 1279US6144005AVacuum switch and a vacuum switchgear using the sameHITACHI LTD·Filed 1998·Granted Nov 7, 2000·30 cites·33 claims
- 1376US8710388B2Switchgear and method for operating switchgearUTSUMI TOMOAKI·Filed 2010·Granted Apr 29, 2014·5 cites·17 claims
- 1476US7790998B2Vacuum insulated switchgearHITACHI LTD·Filed 2008·Granted Sep 7, 2010·5 cites·3 claims
- 1576US7075398B2Electromagnet and actuating mechanism for switch device, using thereofHITACHI ENG SERVICE·Filed 2004·Granted Jul 11, 2006·14 cites·2 claims
- 1675US9520699B2SwitchgearHITACHI LTD·Filed 2013·Granted Dec 13, 2016·3 cites·8 claims
- 1775US8247725B2Vacuum switchgearMORITA AYUMU·Filed 2009·Granted Aug 21, 2012·9 cites·16 claims
- 1875US8035054B2Vacuum insulated switchgearHITACHI LTD·Filed 2008·Granted Oct 11, 2011·12 cites·10 claims
- 1972US6153846AVacuum insulated switching apparatusHITACHI LTD·Filed 1999·Granted Nov 28, 2000·24 cites·14 claims
- 2070US8872054B2Switch unit and switchgear equipped therewithYAMAZAKI MIKI·Filed 2011·Granted Oct 28, 2014·5 cites·8 claims
- 2170US7902479B2Vacuum switchgearHITACHI LTD·Filed 2007·Granted Mar 8, 2011·5 cites·11 claims
- 2270US7662208B2Electrical contacts for vacuum circuit breakers and methods of manufacturing the sameHITACHI LTD·Filed 2006·Granted Feb 16, 2010·5 cites·17 claims
- 2370US6268579B1Vacuum switchgearHITACHI LTD·Filed 1998·Granted Jul 31, 2001·27 cites·13 claims
- 2469US9899172B2Circuit breaker and circuit breaker operating methodHITACHI LTD·Filed 2013·Granted Feb 20, 2018·2 cites·11 claims
- 2569US6529009B2Vacuum switch including vacuum-measurement devices, switchgear using the vacuum switch, and operation method thereofHITACHI LTD·Filed 2002·Granted Mar 4, 2003·12 cites·11 claims
- 2663US8237076B2Vacuum switchSATO TAKASHI·Filed 2009·Granted Aug 7, 2012·3 cites·20 claims
- 2763US6426627B2Vacuum switch including vacuum-measurement devices, switchgear using the vacuum switch, and operation method thereofHITACHI LTD·Filed 2000·Granted Jul 30, 2002·10 cites·5 claims
- 2860US9142371B2Actuator for contactorHITACHI LTD·Filed 2014·Granted Sep 22, 2015·1 cites·10 claims
- 2960US8294057B2Electrode for switch and vacuum switch, and method of manufacturing electrode for switch or vacuum switchYAMAZAKI MIKI·Filed 2010·Granted Oct 23, 2012·1 cites·12 claims
- 3059US7683286B2SwitchgearHITACHI LTD·Filed 2007·Granted Mar 23, 2010·2 cites·4 claims
- 3159US7679023B2SwitchgearHITACHI LTD·Filed 2008·Granted Mar 16, 2010·2 cites·5 claims
- 3259US6259051B1Vacuum switch and a vacuum switchgear using the sameHITACHI LTD·Filed 2000·Granted Jul 10, 2001·9 cites·12 claims
- 3354US8049130B2Vacuum insulated switch and vacuum insulated switchgearHITACHI LTD·Filed 2008·Granted Nov 1, 2011·1 cites·5 claims
- 3453US6495786B1Vacuum exhaust element of vacuum switchHITACHI LTD·Filed 2000·Granted Dec 17, 2002·7 cites·21 claims
- 3552US9437380B2Switching unit or switching gearHITACHI LTD·Filed 2013·Granted Sep 6, 2016·0 cites·22 claims
- 3652US8373082B2Vacuum insulated switchgearHITACHI LTD·Filed 2010·Granted Feb 12, 2013·0 cites·9 claims
- 3751US8304679B2Vacuum insulated switchgearTSUCHIYA KENJI·Filed 2010·Granted Nov 6, 2012·0 cites·2 claims
- 3851US2016141126A1Electrical Contact for Vacuum Interrupter and Process for Producing SameHITACHI LTD·Filed 2014·Application pending·0 cites
- 3950US8576545B2SwitchgearTAKAHASHI KEIICHI·Filed 2011·Granted Nov 5, 2013·1 cites·6 claims
- 4049US9818562B2SwitchHITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD·Filed 2013·Granted Nov 14, 2017·0 cites·10 claims
- 4148US9919722B2Railroad vehicleHITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD·Filed 2014·Granted Mar 20, 2018·0 cites·17 claims
- 4247US9378913B2Operating device or vacuum switchHITACHI LTD·Filed 2013·Granted Jun 28, 2016·0 cites·20 claims
- 4347US9318285B2Switchgear and opening and closing method thereofHITACHI LTD·Filed 2014·Granted Apr 19, 2016·0 cites·11 claims
- 4447US6107592AVacuum switching apparatusHITACHI LTD·Filed 1999·Granted Aug 22, 2000·10 cites·11 claims
- 4544US6114647ABellows and vacuum switch using the bellowsHITACHI LTD·Filed 1998·Granted Sep 5, 2000·9 cites·6 claims
- 4644US2010089874A1SwitchgearHITACHI LTD·Filed 2009·Application pending·0 cites
- 4743US2015060409A1Vacuum SwitchHITACHI LTD·Filed 2013·Application pending·0 cites
- 4842US2015091677A1Gas Circuit BreakerHITACHI LTD·Filed 2013·Application pending·0 cites
- 4942US2014076852A1Electrical Contacts, Manufacturing Methods Thereof, Electrodes, Vacuum Interrupters, and Electric Power SwitchesHITACHI LTD·Filed 2013·Application pending·0 cites
- 5041US2006208841A1Electromagnet and actuating mechanism for switch device, using thereofMORITA AYUMU·Filed 2006·Application pending·0 cites
Showing the top 50 of 61 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →