Learn more

TONE CHIKA GIJUTSU KK

Overview
  • Total Patents
    48
About

TONE CHIKA GIJUTSU KK has a total of 48 patent applications. Its first patent ever was published in 1989. It filed its patents most often in Japan. Its main competitors in its focus markets civil engineering are CASAGRANDE BRUNO, SOOHO IND DEV CO LTD and FRUEHLING OTTO.

Patent filings in countries

World map showing TONE CHIKA GIJUTSU KKs patent filings in countries
# Country Total Patents
#1 Japan 48

Patent filings per year

Chart showing TONE CHIKA GIJUTSU KKs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Civil engineering

Focus technologies

# Technology
#1 Dredging
#2 Earth drilling

Top inventors

# Name Total Patents
#1 Bo Naoki 20
#2 Itoyama Naota 17
#3 Yoshida Keisuke 11
#4 Soejima Torajiro 8
#5 Egashira Hiroyuki 8
#6 Ogisu Kazuyoshi 8
#7 Baba Takekazu 6
#8 Tanaka Yusuke 5
#9 Seto Kojiro 4
#10 Kusuda Kazuo 4

Latest patents

Publication Filing date Title
JPH1181297A Excavation stirring blade for ground improving device
JPH1171749A Ground improvement equipment
JPH1161771A Multi-natural type bulkhead underground wall
JPH10331153A Multi-functional underground continuous wall and method for constructing the same
JPH10325139A Multifunctional underground continuous wall and working method thereof
JPH10306439A Cast-in-place pile method
JPH10306437A Widened wing running type ground improving equipment and ground improving method using the equipment
JPH10306438A Widened wing type ground improving equipment and ground improving method using the equipment
JPH10299005A Footing equipped with sloped pile bundled and method of construction work
JPH10266199A Installation method for double filling pipe with tip packer and steel core mortar pole
JPH10252372A Excavation bit and excavation casing using the same
JPH10231537A Bucket for excavation
JPH10220025A Scaffold pipe fixing type hand rail metal fitting
JPH10205267A Ground excavating method
JPH10196097A Moving support device and construction method for temporary structure using it
JPH10195825A Pit mouth integrated type abutment
JPH10183605A High rigidity underground continuous wall
JPH10183628A Greening method for soilless sloped wall surface
JPH10140968A Construction method and apparatus of extremely large diameter and extremely deep shaft
JPH10121465A Continuos underground wall engineering method