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HODOGAYA CHEMICAL CO LTD

Overview
  • Total Patents
    2,813
  • GoodIP Patent Rank
    2,724
  • Filing trend
    ⇧ 98.0%
About

HODOGAYA CHEMICAL CO LTD has a total of 2,813 patent applications. It increased the IP activity by 98.0%. Its first patent ever was published in 1956. It filed its patents most often in Japan, United States and EPO (European Patent Office). Its main competitors in its focus markets organic fine chemistry, basic materials chemistry and semiconductors are LUMINESCENCE TECHNOLOGY CORP, LECLOUX DANIEL DAVID and SFC CO LTD.

Patent filings per year

Chart showing HODOGAYA CHEMICAL CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hayashi Shuichi 381
#2 Yokoyama Norimasa 371
#3 Kabasawa Naoaki 216
#4 Yamamoto Takeshi 150
#5 Nagaoka Makoto 147
#6 Kusano Shigeru 144
#7 Anzai Mitsutoshi 125
#8 Kase Kouki 121
#9 Mochizuki Shunji 119
#10 Suruga Kazuyuki 115

Latest patents

Publication Filing date Title
GB202102793D0 Dye for hair coloration, composition for hair coloration containing dye, and method for producing dye
WO2021079856A1 Organic electroluminescent element
WO2021070878A1 Organic electroluminescence element having organic layer comprising high molecular weight compound
KR20210034507A Method for producing lactone polymer
KR20210027130A Compound, dye composition, coloring agent for anodic aluminum oxide, coloring method, and method for producing the compound
JP2020200455A Aqueous composition and its cured material, cutoff agent raw material set, cutoff agent, and cutoff method of leaked water from leaking part
WO2020246484A1 Compound having benzotriazole ring structure and organic electroluminescence element
WO2020246404A1 High-molecular-weight compound including substituted triarylamine structural unit, and organic electroluminescent device
JP2020200444A Xanthene-based pigment, coloring composition containing that pigment, color filter colorant, and color filter
WO2020218264A1 Photoelectric conversion device including organic thin film made of compound having indenocarbazole ring
WO2020184379A1 Trisubstituted benzene compound having nitrogen-containing hetero ring in molecular terminus and organic electroluminescence element
WO2020184219A1 Organic electroluminescence element
TW202041503A Arylamine compound having benzoazole ring structure, and organic electroluminescent element
JP2020139150A Composition for primer coating film, composition set for primer coating film, and primer coating film
WO2020166630A1 Compound having benzazole ring structure, and organic electroluminescent device
TW202039787A Organic electroluminescent device
WO2020137724A1 Organic electroluminescent element
WO2020111081A1 Compound having azabenzoxazole ring structure and organic electroluminescent element
WO2020111077A1 Organic electroluminescence element
WO2020080341A1 Compound having pyrimidine ring structure and organic electroluminescent element