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TOHOKU DENKI HOAN KYOKAI

Overview
  • Total Patents
    33
About

TOHOKU DENKI HOAN KYOKAI has a total of 33 patent applications. Its first patent ever was published in 1992. It filed its patents most often in Japan. Its main competitors in its focus markets electrical machinery and energy and environmental technology are SOUWA KOGYO KK, PEARL ELECTRIC CO LTD and JINAN GALAXY ELECTRIC CO LTD.

Patent filings in countries

World map showing TOHOKU DENKI HOAN KYOKAIs patent filings in countries
# Country Total Patents
#1 Japan 33

Patent filings per year

Chart showing TOHOKU DENKI HOAN KYOKAIs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Osawa Hideki 18
#2 Sato Akira 3
#3 Sasaki Takashi 2
#4 Takahashi Koji 2
#5 Yokota Hiroaki 2
#6 Sato Naoyuki 2
#7 Yamamoto Koji 1
#8 Oikawa Hiroyuki 1
#9 Sugawara Toshimasa 1
#10 Chiba Manabu 1

Latest patents

Publication Filing date Title
JP2012065523A Transformer internal failure detection device
JP2012054683A Power line carrier transmission/reception apparatus
JP2012037468A Insulation resistance meter
JP2010231932A Device for discriminating type of fluorescent lamp ballast
JP2009121877A Insulation resistance measuring device
JP2008203083A Superposition method for scalar-system igr detector
JP2008198046A Carrier transmission system for insulation monitoring device
JP2007278952A Leakage survey instrument of scalar system
JP2007278953A Igr DETECTOR OF SCALAR SYSTEM
JP2006339422A Tool for use in tap change of transformer
JP2004205255A Apparatus for measuring quantity of electric power consumed
JP2004022515A Uninterruptible switching device with small capacity
JP2003223833A Apparatus for operating to make and break high-voltage air break switch on pole, and metal temporary fastener for the same
JP2003090859A Short circuit detector
JP2002247748A Short-circuit detector
JP2002083584A Replenishing battery liquid filling tube, automatic replenishing batery liquid filling device using the tube, and automatic replenishing batery liquid injecting method using the device
JP2002075142A Apparatus for operating for making and breaking switch installed on pole, and method for operating the same
JP2001320828A Ground relay with failed-area determining function
JP2001305178A Pattern recognition type partial discharge detector
JP2000324680A Method and device for detecting grounding of high- voltage reception facility