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UMEZAWA NORIHIRO

Overview
  • Total Patents
    68
About

UMEZAWA NORIHIRO has a total of 68 patent applications. Its first patent ever was published in 1976. It filed its patents most often in Japan, EPO (European Patent Office) and United States. Its main competitors in its focus markets environmental technology, civil engineering and machines are VOS SIB OTDEL V PROEKTNO IZYSK, TOSHIBA PLANT KENSETSU KK and FUJISAKI MASANORI.

Patent filings in countries

World map showing UMEZAWA NORIHIROs patent filings in countries
# Country Total Patents
#1 Japan 66
#2 EPO (European Patent Office) 1
#3 United States 1

Patent filings per year

Chart showing UMEZAWA NORIHIROs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Umezawa Norihiro 67
#2 Suzutani Jiro 18
#3 Tashiro Akira 3
#4 Suzutani Jirou 3
#5 Yotsudo Hideo 2
#6 Sasaki Katsuro 2
#7 Saruwatari Shuichi 1
#8 Norihiro Umezawa 1
#9 Hata Kazuyuki 1
#10 Yamamoto Akira 1

Latest patents

Publication Filing date Title
JP2004270293A Method of manufacturing side ditch product with variable gradient type cover, and the side ditch product
JP2002235368A Kit of concrete boards for catch basin and the catch basin made by assembling the concrete boards
JP2002225019A Method for molding culvert block and its molding
JP2002225013A Method for molding u-groove block and its molding
JP2000094411A Filling and molding method of concrete secondary product
JPH11348011A Low noise filling molding equipment of secondary concrete product
JPH10100117A Production of concrete secondary product and production and execution controlled in quality of fresh concrete
JPH08189071A Sideditch product and molding method thereof
JPH07100808A Low noise molding apparatus for concrete secondary article
JPH07276342A Method and apparatus for manufacturing concrete secondary product
JPH06190820A Low noise charging and forming method and device of secondary concrete product
JPH06108526A Variable gradient type gutter with bottom plate
JPH0691626A Curing method for concrete secondary product
JPH05339978A Composite function type gutter
JPH05302306A Permeable road surface structure
JPH05214760A Composite function type side gutter
JPH03279527A Channel joint structure
JPH0473337A Joint structure of channel
JPH0379890A Duct with combined function
JPH0412613A Composite function conduit