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USHIJIMA MASAKAZU

Overview
  • Total Patents
    46
About

USHIJIMA MASAKAZU has a total of 46 patent applications. Its first patent ever was published in 1994. It filed its patents most often in Japan, EPO (European Patent Office) and United States. Its main competitors in its focus markets electrical machinery and energy, environmental technology and machines are MASAKAZU USHIJIMA, MELANSON JOHN L and EXSCITRON GMBH.

Patent filings in countries

World map showing USHIJIMA MASAKAZUs patent filings in countries

Patent filings per year

Chart showing USHIJIMA MASAKAZUs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Ushijima Masakazu 46
#2 Kijima Minoru 7
#3 Taido Daisuke 7
#4 Kawamoto Koji 4
#5 Fujimura Tadamasa 3
#6 Yamamoto Youichi 3
#7 Fujimura Dadamasa 1
#8 Yamamoto Yoichi 1
#9 Minoru Kijima 1

Latest patents

Publication Filing date Title
JP2008300860A Module for parallel lighting and balancer coil for discharge tube
JP2009212157A Transformer, electric circuit, current detection method, and output control method
JP2008071769A Parallel lighting system for surface light source discharge tube
US2008036393A1 Inverter circuit for discharge lamps for multi-lamp lighting and surface light source system
JP2006222076A Inverter circuit for current resonance type discharge tube
JP2006012781A Module for parallelly lighting discharge tubes, and balancer coil
JP2006269137A Inverter circuit for inorganic el element
JP2005312284A Inverter circuit for current resonance discharge tube
JP2005176599A Current-resonant inverter circuit
JP2005203347A Parallel lighting system for surface light source discharge tube
JP2006129669A Current resonance type inverter circuit and electric power control means
JP2004335443A Inverter circuit for discharge tube for multiple lamp lighting, and surface light source system
JP2005129422A Inverter circuit for surface light source apparatus
JPH08273862A Inverter circuit for discharge tube