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YAMADA KOUICHI

Overview
  • Total Patents
    12
About

YAMADA KOUICHI has a total of 12 patent applications. Its first patent ever was published in 1975. It filed its patents most often in United States, Japan and Canada. Its main competitors in its focus markets basic communication technologies, computer technology and semiconductors are VANTIS CORP, VICICIV TECHNOLOGY and MASLEID ROBERT P.

Patent filings in countries

World map showing YAMADA KOUICHIs patent filings in countries
# Country Total Patents
#1 United States 7
#2 Japan 4
#3 Canada 1

Patent filings per year

Chart showing YAMADA KOUICHIs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Yamada Kouichi 12
#2 Domon Haruo 3
#3 Mizukami Hajime 1
#4 Wada Makoto 1
#5 Aoki Kunio 1
#6 Takeda Kiyoshi 1
#7 Fukuma Kazunori 1
#8 Mizota Tatsuo 1

Latest patents

Publication Filing date Title
US2010128506A1 Memory
US2009317691A1 Ejector for fuel cell system
US2009168529A1 Nonvolatile semiconductor memory device, method for manufacturing the same, and nonvolatile memory array
JPS5456230A Method of construction of preventing leakage from crevice
JPS5456087A Roof treating agent * production and use thereof
JPS52156500A Pin pulllout tool for use in spike tire
JPS51141037A Instrument for paging