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KATAYAMA CHEMICAL WORKS CO

Overview
  • Total Patents
    811
  • GoodIP Patent Rank
    13,719
  • Filing trend
    ⇧ 16.0%
About

KATAYAMA CHEMICAL WORKS CO has a total of 811 patent applications. It increased the IP activity by 16.0%. Its first patent ever was published in 1974. 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, basic materials chemistry and surface technology and coating are RHODIA UK LTD, ACCULAB CO LTD and BETZ LABORATORIES.

Patent filings per year

Chart showing KATAYAMA CHEMICAL WORKS COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Katayama Sakae 302
#2 Kaneda Sadaoki 108
#3 Umekawa Osamu 82
#4 Nishimura Kunio 68
#5 Hirashima Hidenori 64
#6 Tsuji Katsuji 50
#7 Hanno Kenji 47
#8 Kawasaki Yoshinari 44
#9 Ito Yosuke 43
#10 Okuma Masatsune 35

Latest patents

Publication Filing date Title
JP2020180427A Pitch trouble suppression method in papermaking process
WO2020241720A1 Method for producing methacrylic acid ester and method for suppressing polymerization of methacrylic acid
WO2020218403A1 Method for reducing quantity of iron component in crude oil
JP2020133097A Pitch trouble suppression method
JP2020196000A Treatment method for cyanide-containing wastewater
JP2020138197A Method for preventing marine organisms from attaching to seawater cooling system
WO2020230351A1 Pulp washing
JP2019183381A Method for producing old paper pulp
JP2019196495A Tar improver
WO2020022217A1 Method, agent and kit each for preventing attachment of marine organism and others
JP2021001293A Tar viscosity reduction agent, tar containing tar viscosity reduction agent and method for reducing tar viscosity
JP2020184918A Fish-luring device of cultured fish, fish gathering method of cultured fish using the same, and chemical bath processing method
JP2020133057A Pitch trouble suppression method in papermaking process
JP2020131066A Manganese scale inhibitor, and method of inhibiting manganese scale
JP2020128601A White water modifying method and method for producing wastepaper pulp
JP2020050964A Production method of used paper pulp
JP2020007654A Pulp digestion aid, and method for producing chemical pulp using the same
JP2020007653A Method for producing chemical pulp, and pulp digestion aid
JP2019137909A Method for modifying solid fuel and/or steel raw material
JP2019011543A Viscosity-reducing agent composition and black liquor concentration method