Inventor
TANIMIZU TORU
JP32 patents
⚠️ This page may combine multiple inventors who share the name “TANIMIZU TORU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
24 patentsUS6248969B1Jun 19, 2001
Vacuum circuit breaker, and vacuum bulb and vacuum bulb electrode used therefor
HITACHI LTD24 citations92
US6153846ANov 28, 2000
Vacuum insulated switching apparatus
HITACHI LTD24 citations92
US6048216AApr 11, 2000
Vacuum circuit breaker as well as vacuum valve and electric contact used in same
HITACHI LTD18 citations92
US5852266ADec 22, 1998
Vacuum circuit breaker as well as vacuum valve and electric contact used in same
HITACHI LTD32 citations92
US5612523AMar 18, 1997
Vacuum circuit-breaker and electrode assembly therefor and a manufacturing method thereof
HITACHI LTD30 citations92
US5594224AJan 14, 1997
Vacuum circuit interrupter
HITACHI LTD20 citations92
US5557083ASep 17, 1996
Vacuum circuit breaker and electric contact
HITACHI LTD22 citations92
US6437275B1Aug 20, 2002
Vacuum circuit-breaker, vacuum bulb for use therein, and electrodes thereof
HITACHI LTD27 citations91
US6268579B1Jul 31, 2001
Vacuum switchgear
HITACHI LTD27 citations91
US6144005ANov 7, 2000
Vacuum switch and a vacuum switchgear using the same
HITACHI LTD30 citations91
US6498314B2Dec 24, 2002
Vacuum switch and vacuum switchgear using the same
HITACHI LTD24 citations88
US5892645AApr 6, 1999
Protection system for power receiving station
HITACHI LTD27 citations86
US6107592AAug 22, 2000
Vacuum switching apparatus
HITACHI LTD10 citations74
US5483417AJan 9, 1996
Power board
HITACHI LTD11 citations74
US5245506ASep 14, 1993
Switchboard and multi-stage switchboard assembly
HITACHI LTD9 citations74
US5216575AJun 1, 1993
Power board
HITACHI LTD6 citations74
US5763848AJun 9, 1998
Electrode for vacuum circuit breaker
HITACHI LTD16 citations73
US5697150ADec 16, 1997
Method forming an electric contact in a vacuum circuit breaker
HITACHI LTD17 citations73
US6495786B1Dec 17, 2002
Vacuum exhaust element of vacuum switch
HITACHI LTD7 citations72
US6259051B1Jul 10, 2001
Vacuum switch and a vacuum switchgear using the same
HITACHI LTD9 citations72
US6114647ASep 5, 2000
Bellows and vacuum switch using the bellows
HITACHI LTD9 citations72
US5467241ANov 14, 1995
Power receiving system
HITACHI LTD11 citations67
US5396395AMar 7, 1995
Controller for electric power distribution apparatus
HITACHI LTD2 citations63
US5278723AJan 11, 1994
Power board
HITACHI LTD3 citations63
MEIDENSHA ELECTRIC MFG CO LTD
4 patentsUS7041930B2May 9, 2006
Bellows for use in vacuum capacitor
MEIDENSHA ELECTRIC MFG CO LTD7 citations74
US10068741B2Sep 4, 2018
Field emission device and reforming treatment method
MEIDENSHA ELECTRIC MFG CO LTD5 citations71
US11342127B2May 24, 2022
Transformer for vacuum capacitor type instrument
MEIDENSHA ELECTRIC MFG CO LTD0 citations55
US12412706B2Sep 9, 2025
Vacuum capacitor
MEIDENSHA ELECTRIC MFG CO LTD0 citations46