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WATANABE KENKYUSHO

Overview
  • Total Patents
    106
About

WATANABE KENKYUSHO has a total of 106 patent applications. Its first patent ever was published in 1971. It filed its patents most often in Germany, United Kingdom and Italy. Its main competitors in its focus markets audio-visual technology, furniture and games and machines are BORDIGNON ABRAMO, AM KEMI AS and TAKAHASHI YUICHI.

Patent filings in countries

World map showing WATANABE KENKYUSHOs patent filings in countries
# Country Total Patents
#1 Germany 18
#2 United Kingdom 15
#3 Italy 15
#4 Spain 14
#5 Japan 13
#6 France 12
#7 United States 10
#8 Hong Kong 9

Patent filings per year

Chart showing WATANABE KENKYUSHOs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Watanabe Katsumi 40
#2 Katsumi Watanabe 12

Latest patents

Publication Filing date Title
DE2945610A1 SIMPLIFIED TURNTABLE
JPS54123001A Simple record player
JPS5468588A Simple index table
US4150831A Toy record player
JPS53147502A Toy record player
JPS5422247A Structure of simplifying toy record player
JPS547303A Toy record player
JPS544103A Device for returning and starting tone arm for toy record player
JPS53147501A Toy record player
JPS5325402A Toy cassette player
JPS5325403A Motor holding mechanism for toy player
JPS5325404A Toy cassette player
US4107489A Switch mechanism for simple phonograph
JPS52125983A Variable brake device using magnetic force
JPS52109904A Acoustic reproducer
US4004815A Miniature toy sound-reproducing device
JPS51126804A Ound mechanism of simplified type gramophone
ES436688A1 Perfected mechanism transfer of vibrations for toy phonograph of type cassette. (Machine-translation by Google Translate, not legally binding)
GB1456293A Bock incorporating a sound reproduction device
DE2438083A1 RECORD PLAYER