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KAJIMA CORP

Overview
  • Total Patents
    11,176
  • GoodIP Patent Rank
    1,202
  • Filing trend
    ⇧ 8.0%
About

KAJIMA CORP has a total of 11,176 patent applications. It increased the IP activity by 8.0%. Its first patent ever was published in 1969. It filed its patents most often in Japan, United States and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets environmental technology, civil engineering and materials and metallurgy are SHIMIZU CONSTRUCTION CO LTD, FUJITA CORP and TAKENAKA KOMUTEN CO.

Patent filings per year

Chart showing KAJIMA CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Matsui Nobuyuki 247
#2 Sakata Noboru 241
#3 Yasunaga Masamichi 221
#4 Niwa Naomiki 182
#5 Fukumoto Toshiyuki 171
#6 Yamada Shunichi 159
#7 Mizutani Akira 157
#8 Tanaka Naoki 152
#9 Nojiri Akiyoshi 145
#10 Kobori Takuji 144

Latest patents

Publication Filing date Title
JP2021006703A Building method of tunnel internal structure
JP2020204626A Inspection supporting device
JP2021009702A Inspection support device, inspection support method and program
JP2020172858A Ground freezing method and ground freezing device
JP2020169568A Construction method of skeleton and skeleton
JP2020128696A Lining concrete placing method
JP2020128689A Construction machine installation method
JP2020101086A Tunnel excavator and method for spraying concrete or mortar
JP2020109251A Outer enclosure skeleton and construction method thereof
JP2020073384A Monitoring device
JP2020176506A Mold frame, and mold frame system including mold frame and lifting device for lifting mold frame
JP2020012370A Outer frame and outer frame construction method
JP2020002778A Bridge pier construction method
JP2019206910A Concrete construction device
WO2021024499A1 Reinforcing bar determination device and reinforcing bar determination method
JP2019187445A Sterilization test method and device
JP2021007978A Site welding equipment
JP2021007977A Construction-site welding apparatus
JP2021006734A Hydraulic damper and control method for opening/closing control valve thereof
JP2021009034A Concrete crack evaluation method and concrete placement evaluation method