Learn more

TOKUYAMA CORP

Overview
  • Total Patents
    6,400
  • GoodIP Patent Rank
    1,059
  • Filing trend
    ⇧ 23.0%
About

TOKUYAMA CORP has a total of 6,400 patent applications. It increased the IP activity by 23.0%. Its first patent ever was published in 1983. 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 environmental technology, organic fine chemistry and materials and metallurgy are TOKUYAMA CORPROATION, TOSOH CORP and DENKA CO LTD.

Patent filings per year

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

Top inventors

# Name Total Patents
#1 Momoda Junji 363
#2 Mori Katsuhiro 243
#3 Takenaka Junji 229
#4 Izumi Shinobu 159
#5 Fukuda Kentaro 156
#6 Shimizu Yasutomo 143
#7 Kanechika Yukihiro 138
#8 Yamaguchi Masao 132
#9 Kazama Hideki 119
#10 Tanaka Kenji 116

Latest patents

Publication Filing date Title
WO2021075456A1 Photochromic compound and curable composition including photochromic compound
WO2021075383A1 Photochromic hydroxyurethane compound
WO2021066043A1 Method for producing trione compound
WO2021065685A1 Apparatus and method for producing polycrystalline silicon, and polycrystalline silicon
WO2021065625A1 Microballoon production method
WO2021060234A1 RuO4 GAS GENERATION SUPPRESSION AGENT, AND RuO4 GAS GENERATION SUPPRESSION METHOD
WO2021065570A1 Liner, teat cup, and milking device
WO2021049557A1 Method for producing purified silicon fine particles
WO2021039569A1 Polycrystalline silicon rod and method for manufacturing same
WO2021039586A1 Modified boron nitride powder
WO2021044788A1 Metal oxide powder chemical treatment method and production method
WO2021020481A1 Method for producing intermediate of iguratimod derivatives, method for producing iguratimod, iguratimod having novel crystal structure, and method for producing same
WO2021024889A1 Silicon core wire for depositing polycrystalline silicon and production method therefor
WO2021015138A1 Coating method
WO2021059666A1 Semiconductor treatment liquid for ruthenium and method for producing same
WO2021002235A1 Method and device for producing quaternary ammonium hydroxide
WO2020262144A1 Method for producing diarylmethane compound
WO2020256007A1 Ruthenium oxide gas absorbing liquid, analysis method and trap device for ruthenium oxide, and quantitative analysis device
WO2020261961A1 Chromene compound and photochromic optical article
WO2021010051A1 Production method for polycrystalline silicon