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KOYAMA TAKASHI

Overview
  • Total Patents
    20
About

KOYAMA TAKASHI has a total of 20 patent applications. Its first patent ever was published in 1974. It filed its patents most often in Japan and United States. Its main competitors in its focus markets environmental technology, engines, pumps and turbines and transport are SEA Automotive Pty Ltd, LIGHTENING ENERGY and BEGINS CO LTD.

Patent filings in countries

World map showing KOYAMA TAKASHIs patent filings in countries
# Country Total Patents
#1 Japan 11
#2 United States 9

Patent filings per year

Chart showing KOYAMA TAKASHIs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Koyama Takashi 20
#2 Koyama Shigeru 2
#3 Fushimi Masayuki 2
#4 Fujiwara Kiyoshi 2
#5 Kaneko Tomohiro 2
#6 Ohki Hisashi 2
#7 Najima Satoo 2
#8 Suematsu Keigo 1
#9 Yamada Takahumi 1
#10 Shimizu Hajime 1

Latest patents

Publication Filing date Title
US2016032615A1 Handle structure for bi-fold door
US2014130753A1 Cooling water temperature control apparatus for an internal combustion engine
JP2004330755A Pencil for exclusive use for filling up mark sheet
JPH09100142A Plate glass decorated on end surface of glass
JPH07197748A Such using glass sliding door of u-shaped framework
JPH0671267A Water quality regulating method
JPH06154770A Adjusting method of water quality
JPS63253228A Method and device for easily detecting pressure
JPS52128891A Ice melting liquid for automobile front glass
JPS527529A Passenger seat for vehicle, automobile, boat and the like
JPS51131096A Repair docks automatic side block control device
JPS51131094A Floating dock
JPS5150124A Sharyo jidosha senpakunadono kyakuzaseki