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YOSHIKAWA RF SYSTEM KK

Overview
  • Total Patents
    62
About

YOSHIKAWA RF SYSTEM KK has a total of 62 patent applications. Its first patent ever was published in 1998. It filed its patents most often in Japan. Its main competitors in its focus markets computer technology, environmental technology and telecommunications are BOCOM SMART NETWORK TECHNOLOGIES INC, FROELICH RONALD W and OMI WEIGHING MACHINE INC.

Patent filings in countries

World map showing YOSHIKAWA RF SYSTEM KKs patent filings in countries
# Country Total Patents
#1 Japan 62

Patent filings per year

Chart showing YOSHIKAWA RF SYSTEM KKs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Ishii Hidekazu 46
#2 Sawada Kikuzo 15
#3 Sugawara Kiwa 10
#4 Kubo Takashi 8
#5 Nakao Takayasu 2
#6 Yoshikawa Motoatsu 2
#7 Kunii Norio 2
#8 Nakamura Kazuhiro 2
#9 Miyasaka Yoshikazu 2
#10 Suzuki Takeyuki 2

Latest patents

Publication Filing date Title
JP2013123349A Power conditioning circuit
JP2013026737A Triac starting circuit
JP2012257117A Power line transmission device
JP2012230560A Data carrier and data carrier system
JP2012169183A Dimming-type lighting circuit
JP2012157104A Voltage-dividing rectification circuit
JP2012123973A Led lighting device
JP2011223344A Power line carrier communication system
JP2011123735A Electronic apparatus and driving device
JP2010244257A Data carrier, and reader/writer device
JP2010182032A Data carrier and data carrier system
JP2010087846A Automatic tuning circuit and data carrier device using the same
JP2010087845A Automatic matching method and automatic matching circuit
JP2009151690A Data carrier
JP2008135003A Data carrier and data carrier system
JP2008282103A Data carrier and reader/writer device
JP2008134735A Data carrier and data carrier system
JP2008059246A Data carrier and data carrier system
JP2008059245A Data carrier and data carrier system
JP2008059244A Data carrier and data carrier system