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KOYANAGI YUKIO

Overview
  • Total Patents
    17
About

KOYANAGI YUKIO has a total of 17 patent applications. Its first patent ever was published in 1992. It filed its patents most often in WIPO (World Intellectual Property Organization), Japan and United States. Its main competitors in its focus markets basic communication technologies, computer technology and audio-visual technology are SAKAI YASUE, NEURO SOLUTION CORP and FELDMANN MICHEL.

Patent filings in countries

World map showing KOYANAGI YUKIOs patent filings in countries

Patent filings per year

Chart showing KOYANAGI YUKIOs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Koyanagi Yukio 17
#2 Toraichi Kazuo 1

Latest patents

Publication Filing date Title
WO03058814A1 Digital filter designing method and designing apparatus, digital filter designing program, and digital filter
EP1427104A1 Sound quality adjusting device and filter device used therefor, sound quality adjusting method, and filter designing method
US7085799B2 Analog filter suitable for smoothing a ΔΣ-modulated signal
WO02071619A1 Digital-analog converter and converting method, data interpolator
JPH0750823A Underwater television camera system for checking inside of pipe
JPH0746458A Television camera device
JPH06152609A Information transmission system