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HITACHI ELECTRIC SYSTEMS LTD

Overview
  • Total Patents
    26
About

HITACHI ELECTRIC SYSTEMS LTD has a total of 26 patent applications. Its first patent ever was published in 1997. It filed its patents most often in Japan and Germany. Its main competitors in its focus markets electrical machinery and energy and control are GUMMERSBACH STARKSTROM, EATON ELECTRIC NV and JIANGSU HONGDA ELECTRIC CO LTD.

Patent filings in countries

World map showing HITACHI ELECTRIC SYSTEMS LTDs patent filings in countries
# Country Total Patents
#1 Japan 25
#2 Germany 1

Patent filings per year

Chart showing HITACHI ELECTRIC SYSTEMS LTDs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Honda Haruo 8
#2 Matsuoka Tetsuo 7
#3 Nakasuji Akira 7
#4 Aoshima Masaru 6
#5 Nakamura Susumu 5
#6 Masuhara Hideki 5
#7 Shibata Ekizo 4
#8 Mori Shunji 4
#9 Mukono Shigeo 3
#10 Sato Norimasa 3

Latest patents

Publication Filing date Title
JP2012177571A Ac power measuring device
JP2012163394A Non-contact voltage detector
JP2011057734A Highly tough and highly thermally conductive curable resin composition, cured product thereof, and mold electrical apparatus
JP2010003420A Conductive terminal device of circuit breaker
JP2008067596A Switchgear for power distribution
JP2008023476A Device for softening city water
JP2007083971A Abnormality detection device for railroad
JP2006081385A Switchgear for distributing electric power
JP2006074956A Outdoor receiving and distributing board
JP2006074955A Outdoor receiving and distributing board
JP2005261991A Soft water feeder
JP2003334549A City water softening apparatus
JP2003311161A City water softening apparatus
JP2003117550A City water softening device
JP2002361243A City water softening water supplier
JP2002361244A Softening device for city water
JP2001331220A Control intention automatic confirmation distributed control system
JP2001298996A Automatic voltage regulation device for synchronous generator
JP2001195962A Vacuum breaker
JP2001195960A Power breaker and generating plant electric circuit device