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YAMAMOTO SEIKICHI

Overview
  • Total Patents
    31
About

YAMAMOTO SEIKICHI has a total of 31 patent applications. Its first patent ever was published in 1975. It filed its patents most often in Japan. Its main competitors in its focus markets civil engineering are BLACK WHIRLWIND ENGINEERING MACHINERY DEV CO LTD, OKITAKO SHOJI KK and PATENTED FOUND PTY LTD.

Patent filings in countries

World map showing YAMAMOTO SEIKICHIs patent filings in countries
# Country Total Patents
#1 Japan 31

Patent filings per year

Chart showing YAMAMOTO SEIKICHIs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Civil engineering

Focus technologies

Top inventors

# Name Total Patents
#1 Yamamoto Seikichi 31

Latest patents

Publication Filing date Title
JP2007105713A Agent for residual chlorine removal and method for producing the same
JPH1046570A Creating construction method for underground continuous wall
JPH05311659A Erecting method for lengthy steel member
JPH0565790A Casing head
JPH02285106A Constructing underground continuous wall
JPH0296085A Slot boring construction
JPS6443614A Penetration work of sheet pile
JPS6327614A Stirring mixer
JPS61237718A Steel sheet pile unit
JPS60219323A Pressing-into method of pile
JPS58135227A Pile drawing work and device therefor
JPS58101929A Chucking device for pile
JPS5817925A Method and apparatus for pressing in and drawing pile
JPS587030A Pressing-in method for steel sheet pile
JPS587029A Pressing-in method for steel sheet pile
JPS57201421A Pile penetrating and drawing device
JPS57205622A Pile penetrating and drawing device
JPS56111722A Driving method for steel-pipe pile
JPS5319618A Sheet pile connecting apparatus
JPS5319617A Tool for connecting sheet pile