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IDOU TSUSHIN SYST KAIHATSU KK

Overview
  • Total Patents
    15
About

IDOU TSUSHIN SYST KAIHATSU KK has a total of 15 patent applications. Its first patent ever was published in 1992. It filed its patents most often in Japan. Its main competitors in its focus markets telecommunications and environmental technology are CHINA GREN TECH CO LTD, SURFING TELECOM TERMINAL CO LTD and SUZHOU BEELINKER TECHNOLOGY CO LTD.

Patent filings in countries

World map showing IDOU TSUSHIN SYST KAIHATSU KKs patent filings in countries
# Country Total Patents
#1 Japan 15

Patent filings per year

Chart showing IDOU TSUSHIN SYST KAIHATSU KKs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Hayashi Takahisa 4
#2 Goto Tadamasa 3
#3 Ushiyama Takayuki 2
#4 Otsu Toshio 2
#5 Nakazawa Isao 2
#6 Hamabe Kojiro 2
#7 Ueda Tetsuo 2
#8 Takahashi Masaya 2
#9 Sato Kenichi 2
#10 Maeda Yoji 1

Latest patents

Publication Filing date Title
JPH07111499A Method for data transmission and reception
JPH07261796A Voice encoding and decoding device
JPH07255078A Channel allocation system
JPH07193608A Octal phase psk demodulator for mobile communication
JPH07111498A Method for data transmission and reception
JPH0787154A Frame synchronizing method for multilevel quadrature amplitude modulation system
JPH06282297A Voice coding method
JPH06276053A Adaptive automatic equalizer
JPH06250694A Voice coding and decoding device
JPH06244769A Multiple propagation path measuring system
JPH06177863A Re-transmission control system
JPH0690205A Channel allocation system for mobile communication system
JPH0690199A Multiplex propagation path measuring system
JPH0661923A Mobile communication system
JPH0646037A Mode switching arq system