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OBAYASHI DORO KK

Overview
  • Total Patents
    45
About

OBAYASHI DORO KK has a total of 45 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 environmental technology are CHANGSHU RUNFENG AGRICULTURAL CO LTD, KAWASHIMA ZENICHI and HYLMAR BOHUMIL.

Patent filings in countries

World map showing OBAYASHI DORO KKs patent filings in countries
# Country Total Patents
#1 Japan 45

Patent filings per year

Chart showing OBAYASHI DORO KKs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Ashino Katsukuni 26
#2 Seya Fujio 9
#3 Ishikawa Shuichi 6
#4 Kameyama Tetsuo 6
#5 Mori Masahito 5
#6 Hayashi Kameichi 3
#7 Kudou Isamu 3
#8 Sasaki Kazuo 3
#9 Somekawa Yutaka 3
#10 Matsumoto Toshikazu 3

Latest patents

Publication Filing date Title
JPH1071303A Turbid water precipitation apparatus using soil particle coagulation accelerator and turbid water precipitation system equipped with apparatus
JPH10110402A Pavement structure and construction method thereof
JPH10109005A Precipitation device for fine suspended matter in water
JPH10102532A Processing device and method for sedimentary soil, water purifying device and method
JPH1060914A Earth retaining wall
JPH1028934A Screening method for aggregate and screening device therefor
JPH1018216A Movable asphalt mixer
JPH09195674A Underground propulsive device and underground propulsive method
JPH09177011A Paving material and structure
JPH09177022A Function recovering method and device for pavement with water-permeable function
JPH09165248A Asphalt paving material, its production, paving using the same and paving structure
JPH09112181A Protection device
JPH09100559A Liquid storage tank
JPH0949388A Male/female joint for earth retaining pipe, connecting device, formation of earth retaining wall body with it
JPH0941670A Method for tamping concrete
JPH08291638A Liquid storage tank and construction thereof
JPH08184080A Underground water-storage structure
JPH0828753A Removing method for underground buried pipe
JPH07314186A Strain relieving device of butt weld zone of pipe
JPH07293193A Underground propulsion device and its method