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GAEART KUMAGAI CO LTD

Overview
  • Total Patents
    19
About

GAEART KUMAGAI CO LTD has a total of 19 patent applications. Its first patent ever was published in 1998. It filed its patents most often in Japan. Its main competitors in its focus markets materials and metallurgy and basic materials chemistry are JAPAN FINE CERAMICS CO LTD, LIAONING ZHONGMEI HOLDING CO LTD and KORUND LAUFENBURG GMBH.

Patent filings in countries

World map showing GAEART KUMAGAI CO LTDs patent filings in countries
# Country Total Patents
#1 Japan 19

Patent filings per year

Chart showing GAEART KUMAGAI CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Ito Akihiko 7
#2 Sazawa Masaki 5
#3 Abe Hideki 4
#4 Takei Toshikimi 4
#5 Tanaka Hideki 4
#6 Ishioka Shinya 3
#7 Kitamura Kenichi 2
#8 Kobayashi Hiroaki 2
#9 Kitayama Hiroyasu 2
#10 Komatsubara Akinori 2

Latest patents

Publication Filing date Title
JP2004176330A Concrete pavement slab, its manufacturing method, and paving method using concrete pavement slab
JP2004003277A Expansion joint for road
JP2004084280A Method of constructing road and construction material
JP2003213955A Underground parking apparatus
JP2003055016A Water permeable cement mixture and manufacturing method therefor
JP2003003409A Mixture for permeable concrete pavement, manufacturing method for mixture, and permeable concrete pavement
JP2002339315A REPAIRING METHOD OF ROAD AND PCa SLAB
JP2002308660A Grout
JP2002266333A Plate for forming underwater forest and cultivating prey organisms
JP2002212906A Paving treated material and treatment method of pavement making use thereof
JP2002060627A Mixture for pavement and its manufacturing method
JP2001300501A Soil treating method and device
JP2001269919A Method for exposing aggregate of precast concrete slab
JP2001123065A Mixture for pavement, method of manufacture and method of pavement
JP2001106583A Surface treating agent for concrete and method for removing mortar on concrete surface using the same
JP2001032208A Method and device for exposing aggregate in concrete pavement
JP2000230211A Pc board installation method for pavement of road and its device
JP2000104214A Method for making pavement low temperature
JPH11302624A Freezing preventive and method for preventing freezing of paved surface