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MARCDEVICES CO LTD

Overview
  • Total Patents
    26
  • GoodIP Patent Rank
    204,576
  • Filing trend
    ⇩ 100.0%
About

MARCDEVICES CO LTD has a total of 26 patent applications. It decreased the IP activity by 100.0%. Its first patent ever was published in 2010. It filed its patents most often in WIPO (World Intellectual Property Organization), United States and China. Its main competitors in its focus markets basic communication technologies, measurement and telecommunications are SHIMIZU YASUTAKA, NOTO DENSHI KOGYO KK and QXONIX INC.

Patent filings in countries

World map showing MARCDEVICES CO LTDs patent filings in countries

Patent filings per year

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

Top inventors

# Name Total Patents
#1 Hirama Koichi 22
#2 Koichi Hirama 4

Latest patents

Publication Filing date Title
CN109923840A Phase analysis circuit
WO2016016969A1 Real number component cancellation type gyrator circuit and phase rotation type transformation circuit using same
US2016294055A1 Transfer-function copying circuit and gang-controlled phase displacement circuit
WO2014122753A1 Floating emittance formation circuit and floating emitter circuit using same
TW201349735A Complex negative feedback frequency selection output circuit and oscillation circuit using the same
WO2012120710A1 Composite negative feedback type frequency selective output circuit and oscillation circuit utilizing same
CN102783019A Antiresonant frequency-varying compound resonant circuit
WO2011099438A1 Antiresonant frequency-varying compound resonant circuit
CN102422532A Quasi resonant type compound resonant circuit
EP2421152A1 Frequency-varying complex resonant circuit