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YAMAU CO LTD

Overview
  • Total Patents
    45
  • GoodIP Patent Rank
    169,623
  • Filing trend
    ⇩ 50.0%
About

YAMAU CO LTD has a total of 45 patent applications. It decreased the IP activity by 50.0%. Its first patent ever was published in 1997. It filed its patents most often in Japan. Its main competitors in its focus markets environmental technology, materials and metallurgy and audio-visual technology are XIAO ZHONGYUAN, XIANJUN XING and CAPITAL IRON & STEEL CORP.

Patent filings in countries

World map showing YAMAU CO LTDs patent filings in countries
# Country Total Patents
#1 Japan 45

Patent filings per year

Chart showing YAMAU CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Komine Keizo 10
#2 Tsutsumi Toshito 8
#3 Katayama Tsutomu 8
#4 Miyazaki Shinji 7
#5 Taniguchi Daitaro 6
#6 Yamazaki Masataka 5
#7 Terasaka Kazuyo 3
#8 Mizota Norifumi 3
#9 Sakai Satoru 2
#10 Sakota Takashi 2

Latest patents

Publication Filing date Title
JP2020001945A Salt damage resistant precast concrete product, and method of producing the same
JP2018172915A Standard specification sheet for watertight structure of concrete product
JP2018131822A Watertight structure and watertight construction method of joint portion in concrete secondary product
JP2018094838A Manufacturing method of division type concrete products and division type concrete products
JP2017133291A Curbstone integral type side ditch block and manufacturing method thereof
JP2017053169A Precast concrete structure and storage tank provided with the same
JP2017013293A Packing structure used for formwork for concrete product
JP2017002471A Joint structure of concrete member and construction method for concrete structure
JP2015209709A Built-up type attachable-detachable scaffold
JP2013127200A Concrete prefabricated structure and construction method of the same
JP2014118754A Split type arched culvert and construction method thereof
JP2013079527A Spacer for bar arrangement
JP2012193520A Ballast support plate and infiltration type drainage equipment using the same
JP2012188832A Culvert with wing and construction method of the same
JP2011196152A Spacer for rebar arrangement
JP2011185008A Support column for fence, manufacturing method therefor, and fence
JP2011127363A Concrete assembly structure and method of construction thereof
JP2011094441A Existing waterway repairing panel and waterway repairing method
JP2010261168A Retaining wall block for corner and method of constructing the same
JP2009270359A Road shoulder water collection block