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NAKAGAWA KENKYUSHO KK

Overview
  • Total Patents
    33
About

NAKAGAWA KENKYUSHO KK has a total of 33 patent applications. Its first patent ever was published in 2004. It filed its patents most often in Japan and Taiwan. Its main competitors in its focus markets telecommunications, electrical machinery and energy and computer technology are PHONEX CORP, NIITANI TOSHIMITSU and ELCOM TECH CORP.

Patent filings in countries

World map showing NAKAGAWA KENKYUSHO KKs patent filings in countries
# Country Total Patents
#1 Japan 31
#2 Taiwan 2

Patent filings per year

Chart showing NAKAGAWA KENKYUSHO KKs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Nakagawa Masao 24
#2 Haruyama Shinichiro 23
#3 Arita Takemi 8
#4 Komine Toshihiko 6
#5 Yamaguchi Takehiko 5
#6 Matsumoto Yoshinobu 3
#7 Matsumura Tomokuni 2
#8 Kasuga Akio 2
#9 Sugiyama Hidemitsu 2
#10 Ishigure Takaaki 2

Latest patents

Publication Filing date Title
JP2013021458A Lighting device
JP2009204542A Moving situation acquiring device
JP2009141766A Lighting fixture having communication function
JP2009111725A Reception system for receiving high-speed modulated optical signal
JP2009060181A Positional information acquisition system and receiving terminal
JP2009055118A Receiving system of visible light communication
JP2009054647A Light receiving element circuit for visible light communication
JP2009031206A Position measuring device
JP2009031216A Position detector and photographing device
JP2008312081A Led modulation drive circuit in illumination light communication
JP2008300152A Light-emitting diode automatic dimming device
JP2008252465A Optical transmitter and optical communication system
JP2008252466A Optical communication system, transmitter and receiver
JP2008182446A Two-way visible-light communication apparatus
JP2007004203A Light transmission body
JP2007295029A Mobile optical communication system and method therefor
JP2007274566A Illumination light communication device
JP2007274580A Visible light communication system
JP2007235250A Optical setting device performing initial setting of wireless lan, and information household appliance performing initial setting of wireless lan set thereby
JP2006115539A Light-emitting device and visible light data transmission system