Learn more

NAGATOMO SHIGEKI

Overview
  • Total Patents
    22
About

NAGATOMO SHIGEKI has a total of 22 patent applications. Its first patent ever was published in 1989. It filed its patents most often in Japan, WIPO (World Intellectual Property Organization) and EPO (European Patent Office). Its main competitors in its focus markets civil engineering are LE G PROEKTNO IZYSKATELSKIJ I, STITCH WISE (PTY) LTD and GIDDICCA PTY LTD.

Patent filings in countries

World map showing NAGATOMO SHIGEKIs patent filings in countries

Patent filings per year

Chart showing NAGATOMO SHIGEKIs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Civil engineering

Focus technologies

# Technology
#1 Shafts

Top inventors

# Name Total Patents
#1 Nagatomo Shigeki 11
#2 Yamamoto Takefumi 6
#3 Kaji Shigehito 6
#4 Ochiai Masakazu 6
#5 Fujimoto Hideo 4
#6 Takeuchi Hideki 4
#7 Kinoshita Yoshitomo 4
#8 Mitarashi Yoshio 3
#9 Sato Shigehiko 3
#10 Yonekura Masao 3

Latest patents

Publication Filing date Title
JP2004317372A Axial stress measuring apparatus for fiber reinforced plastic tube
JP2004316117A Measuring device for face forward bedrock displacement and measuring method
JP2004037227A Axial force meter
JP2002242581A Tunnel excavating method
JP2000160980A Sardine bone construction method for large cross section tunnel
JPH11159275A Whale bone construction method of large cross-section tunnel
JPH095180A Axial tension gauge
JPH08165895A Excavating method for large-cross section tunnel
JPH08165899A Tunnel lining method using timbering concurrently serving as reinforcing bar
JPH07259072A Natural ground improving/reinforcing method for tunnel excavation with tunnel excavating machine
JPH07229386A Excavation method for tunnel of flat and large cross section
JPH055394A Chemical grouting method
JPH04264228A Underground subsidence measuring apparatus
JPH04204129A Axial-tension measuring apparatus for friction-type locking bolt
JPH0473313A Chemical grouting technique
JPH03199595A Chemical grouting method
JPH03197795A Middle wall type grouting excavation method
JPH03197794A Chemical grouting method
JPH03110292A Solidification of natural ground