Inventor
URAI HAJIME
JP14 patents
⚠️ This page may combine multiple inventors who share the name “URAI HAJIME”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
13 patentsUS9959999B2May 1, 2018
Method for controlling power switching apparatus
HITACHI LTD4 citations72
US9899172B2Feb 20, 2018
Circuit breaker and circuit breaker operating method
HITACHI LTD2 citations72
US9520699B2Dec 13, 2016
Switchgear
HITACHI LTD3 citations72
US9620315B2Apr 11, 2017
Gas circuit breaker
HITACHI LTD2 citations71
US12034379B2Jul 9, 2024
Power conversion system
HITACHI LTD0 citations60
US10199188B2Feb 5, 2019
Gas circuit breaker
HITACHI LTD1 citations60
US10916394B2Feb 9, 2021
Gas circuit breaker
HITACHI LTD1 citations59
US10157719B2Dec 18, 2018
Gas circuit breaker
HITACHI LTD1 citations50
US9336974B2May 10, 2016
Gas circuit breaker
HITACHI LTD1 citations48
US10256060B2Apr 9, 2019
Gas circuit breaker
HITACHI LTD0 citations41
US10354821B2Jul 16, 2019
Gas circuit breaker
HITACHI LTD0 citations39
US9870884B2Jan 16, 2018
Gas circuit breaker
HITACHI LTD0 citations39
US10699863B2Jun 30, 2020
Gas circuit breaker
HITACHI LTD0 citations36