Inventor
NISHIMIZU AKIRA
JP21 patents
⚠️ This page may combine multiple inventors who share the name “NISHIMIZU AKIRA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
15 patentsUS7235967B2Jun 26, 2007
Eddy current testing probe and eddy current testing apparatus
HITACHI LTD13 citations84
US10978237B2Apr 13, 2021
Core for stationary induction apparatus
HITACHI LTD2 citations71
US10658106B2May 19, 2020
Stationary induction electrical apparatus
HITACHI LTD2 citations67
US7911206B2Mar 22, 2011
Method and apparatus for evaluating length of defect in eddy current testing
HITACHI LTD4 citations61
US6859124B2Feb 22, 2005
Gas insulation transformer
HITACHI LTD4 citations60
US7358721B2Apr 15, 2008
Eddy current flaw detection sensor and method
HITACHI LTD5 citations58
US6769169B2Aug 3, 2004
Method of fabricating a core for a transformer
HITACHI LTD4 citations58
US6611191B2Aug 26, 2003
Transformer
HITACHI LTD4 citations58
US11994448B2May 28, 2024
Leakage oil detection device and leakage oil detection method
HITACHI LTD0 citations52
US11107617B2Aug 31, 2021
Transformer
HITACHI LTD0 citations52
US11494888B2Nov 8, 2022
Work terminal, oil leakage detection apparatus, and oil leakage detection method
HITACHI LTD0 citations51
US10861634B2Dec 8, 2020
Stationary induction electric device
HITACHI LTD0 citations51
US9947453B2Apr 17, 2018
Stationary induction electric apparatus
HITACHI LTD1 citations51
US9274085B2Mar 1, 2016
Eddy current inspection device, eddy current inspection probe, and eddy current inspection method
HITACHI LTD0 citations41
US9170235B2Oct 27, 2015
Eddy current testing apparatus, eddy current testing probe, and eddy current testing method
HITACHI LTD0 citations39