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TADAOKI YAMAMOTO

Overview
  • Total Patents
    13
About

TADAOKI YAMAMOTO has a total of 13 patent applications. Its first patent ever was published in 1921. It filed its patents most often in United Kingdom, United States and Germany. Its main competitors in its focus markets electrical machinery and energy are DREIER HEINRICH, LINCOLN JOHN CROMWELL and TKS KK.

Patent filings in countries

World map showing TADAOKI YAMAMOTOs patent filings in countries
# Country Total Patents
#1 United Kingdom 5
#2 United States 5
#3 Germany 2
#4 Switzerland 1

Patent filings per year

Chart showing TADAOKI YAMAMOTOs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Electrical machinery and energy

Focus technologies

# Technology
#1 Dynamo-electric machines

Top inventors

# Name Total Patents
#1 Tadaoki Yamamoto 6
#2 Masataro Kawarada 4

Latest patents

Publication Filing date Title
US1597228A Compensated induction and synchronous motor
GB217175A Improvements in a method of starting and synchronizing induction-synchronous motors
GB213099A Improvements in electric motors
US1485006A Induction synchronous motor
GB210936A Improvements in induction-starting synchronous motors
US1617092A Induction synchronous motor
GB182466A Improvements in electric motors
US1524496A Alternating-current motor
GB172603A Improvements in electric motors
US1509331A Induction synchronous motor