Inventor · disambiguated record
Hajime Urai
Also filed as: URAI HAJIME
14 granted patents·4 pending applications·25 citations·filing 2005–2021
87Inventor score
Top patents by PatentIndex Score
18 records- 0186US9959999B2Method for controlling power switching apparatusHITACHI LTD·Filed 2016·Granted May 1, 2018·4 cites·8 claims
- 0279US7339132B2Method of current interruption using puffer type gas circuit breaker with combined-action of cylinder and pistonJAPAN AE POWER SYSTEMS CORP·Filed 2005·Granted Mar 4, 2008·10 cites·22 claims
- 0375US9520699B2SwitchgearHITACHI LTD·Filed 2013·Granted Dec 13, 2016·3 cites·8 claims
- 0469US9899172B2Circuit breaker and circuit breaker operating methodHITACHI LTD·Filed 2013·Granted Feb 20, 2018·2 cites·11 claims
- 0568US10157719B2Gas circuit breakerHITACHI LTD·Filed 2017·Granted Dec 18, 2018·1 cites·2 claims
- 0667US9620315B2Gas circuit breakerHITACHI LTD·Filed 2014·Granted Apr 11, 2017·2 cites·12 claims
- 0766US10916394B2Gas circuit breakerHITACHI LTD·Filed 2018·Granted Feb 9, 2021·1 cites·9 claims
- 0865US10199188B2Gas circuit breakerHITACHI LTD·Filed 2016·Granted Feb 5, 2019·1 cites·10 claims
- 0964US12034379B2Power conversion systemHITACHI LTD·Filed 2021·Granted Jul 9, 2024·0 cites·6 claims
- 1060US9336974B2Gas circuit breakerHITACHI LTD·Filed 2013·Granted May 10, 2016·1 cites·12 claims
- 1144US10256060B2Gas circuit breakerHITACHI LTD·Filed 2017·Granted Apr 9, 2019·0 cites·18 claims
- 1242US2015091677A1Gas Circuit BreakerHITACHI LTD·Filed 2013·Application pending·0 cites
- 1340US2015380188A1Gas Circuit BreakerHITACHI LTD·Filed 2014·Application pending·0 cites
- 1439US10699863B2Gas circuit breakerHITACHI LTD·Filed 2019·Granted Jun 30, 2020·0 cites·8 claims
- 1539US10354821B2Gas circuit breakerHITACHI LTD·Filed 2018·Granted Jul 16, 2019·0 cites·5 claims
- 1639US9870884B2Gas circuit breakerHITACHI LTD·Filed 2017·Granted Jan 16, 2018·0 cites·14 claims
- 1739US2021082644A1Gas Circuit BreakerHITACHI LTD·Filed 2020·Application pending·0 cites
- 1836US2018226214A1Gas BreakerHITACHI LTD·Filed 2017·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →