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HITACHI ENG CO LTD

Overview
  • Total Patents
    824
About

HITACHI ENG CO LTD has a total of 824 patent applications. Its first patent ever was published in 1976. It filed its patents most often in Japan, United States and Republic of Korea. Its main competitors in its focus markets environmental technology, measurement and computer technology are CHEN JIANN FUH, ISHIKAWAJIMA YUSOKI KK and KUZNETSOV BORIS A.

Patent filings in countries

World map showing HITACHI ENG CO LTDs patent filings in countries

Patent filings per year

Chart showing HITACHI ENG CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Nakao Takashi 30
#2 Mizuniwa Yoshihiro 25
#3 Inoue Haruki 25
#4 Suzuki Atsushi 23
#5 Sakata Masateru 21
#6 Ishida Saburo 21
#7 Yamazaki Hiromi 21
#8 Taguchi Hirotaka 20
#9 Katane Tadahiro 20
#10 Takagi Katsunori 19

Latest patents

Publication Filing date Title
JP2007245166A Welding apparatus
JP2007233804A Vehicle allocation plan-equipped physical distribution management method and program therefor
JP2007219974A Individual position recognition apparatus and tracking and monitoring apparatus using same
JP2007219973A Method for authenticating individual
JP2007200051A Personal identification device
JP2007185335A Finger vein authentication equipment
JP2007188132A Terminal device with operation control
JP2007158593A Communication system and communication fault management method thereof
JP2007158496A Map interconnection video monitoring method and apparatus thereof
JP2007155383A Positional information specification member
JP2007158381A Infrared ray communication device
JP2007148094A Map display device
JP2007132667A Non-destructive inspection device of piping welded part
JP2007124269A Invader watching method and apparatus thereof
JP2007093413A Artificial barrier environmental monitoring device
JP2007066210A Electronic authentication card issuing device
JP2007064546A Waste heat recovery facility
JP2007064049A Waste heat recovery system for gas turbine cogeneration equipment
JP2007064047A Waste heat recovery facility for steam turbine plant
JP2007064048A Waste heat recovery facility of power plant