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HITACHI LIGHTING LTD

Overview
  • Total Patents
    1,572
About

HITACHI LIGHTING LTD has a total of 1,572 patent applications. Its first patent ever was published in 1982. It filed its patents most often in Japan, United States and EPO (European Patent Office). Its main competitors in its focus markets environmental technology, electrical machinery and energy and machines are WUXI LED TRUST PHOTOELECTRON TECHNOLOGY LTD, SVA ELECTRON CO LTD and GUANGDONG REAL FAITH LIGHTING CO LTD.

Patent filings in countries

World map showing HITACHI LIGHTING LTDs patent filings in countries
# Country Total Patents
#1 Japan 1,567
#2 United States 4
#3 EPO (European Patent Office) 1

Patent filings per year

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

Top inventors

# Name Total Patents
#1 Sakuma Seiji 167
#2 Nakagawa Naohito 65
#3 Mori Tomoteru 65
#4 Nakazawa Ikuo 56
#5 Senba Kazuhisa 55
#6 Kobayashi Toshio 55
#7 Furuta Takashi 49
#8 Sugaya Yoshinori 47
#9 Yoneyama Masami 45
#10 Hasegawa Yasuyuki 45

Latest patents

Publication Filing date Title
JP2012074248A Lighting device
JP2011034689A Lighting fixture and its manufacturing method
JP2010272428A Lamp device
JP2010244915A Lamp device
JP2009152218A Stabilizer built-in type fluorescent lamp
JP2009135120A Compact self-ballasted fluorescent lamp
JP2010186604A Fluorescent lamp
JP2010170804A Liquid crystal backlight device
JP2010165589A Liquid crystal backlight device
JP2010097798A Lighting device
JP2010073501A Dimming signal conversion circuit
JP2010067419A Lamp fixture
JP2010040371A Lighting device of fluorescent lamp
JP2010040379A Human detecting sensor unit, and lighting fixture equipped with the same
JP2010010044A Lamp device
JP2010010043A Lamp device
JP2009266752A Metal halide lamp
JP2009187874A Led light source device
JP2009187875A Light source device
JP2009187762A Light source device