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NIIGATA ENGINEERING CO LTD

Overview
  • Total Patents
    1,992
About

NIIGATA ENGINEERING CO LTD has a total of 1,992 patent applications. Its first patent ever was published in 1964. It filed its patents most often in Japan, United States and EPO (European Patent Office). Its main competitors in its focus markets machines, environmental technology and machine tools are VERNON ROYLE, AJRBUS EHSPAN JA S L and UNITIKA GLASS FIBER KK.

Patent filings per year

Chart showing NIIGATA ENGINEERING CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Goto Fumio 65
#2 Nagaoka Hitoshi 50
#3 Sato Wataru 43
#4 Oya Hiroshi 41
#5 Hirano Haruyuki 40
#6 Yoshizawa Yukio 39
#7 Takahashi Chuya 38
#8 Sato Sumio 37
#9 Yoshino Kenji 34
#10 Yamada Tadamasa 33

Latest patents

Publication Filing date Title
JP2003185090A Oil purifying apparatus
JP2003148188A Pilot oil ignition type gas engine and method of operating pilot oil ignition type gas engine
JP2003148217A Engine, exhaust temperature control device and method for engine, and program to make computer function as exhaust temperature control means for engine
JP2003267480A Powdery particle feeding unit and powdery particle feeding method
JP2003239837A Method and device for starting pilot ignition gas engine
WO03056159A1 Dual fuel engine
JP2003161146A Exhaust method and exhaust device for gas engine
JP2003146204A Guide ring supporting device of bogie for guide rail type car
JP2003144852A Exhaust gas denitrification method and exhaust gas denitrification equipment for gas engine using digested gas as fuel
JP2003090433A Sealing structure for manhole
JP2003083971A Immunoreaction judging system
JP2003063487A Propelling device for ship
JP2003053509A Method for producing cylinder liner of internal combustion engine
JP2003039045A Method for treating woody solid waste
JP2003039050A Organic waste treatment method
JP2003019655A Honing method and honing apparatus for cylinder liner
JP2003021232A Traveling control device for working machine
JP2003003442A Bed load sampler
JP2002364372A Supercharging system for diesel engine
JP2002357128A Restart method for gas turbine engine and restart device used therein