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IDEMITSU KOSAN CO

Overview
  • Total Patents
    20,518
  • GoodIP Patent Rank
    441
  • Filing trend
    ⇧ 2.0%
About

IDEMITSU KOSAN CO has a total of 20,518 patent applications. It increased the IP activity by 2.0%. Its first patent ever was published in 1963. It filed its patents most often in Japan, WIPO (World Intellectual Property Organization) and United States. Its main competitors in its focus markets basic materials chemistry, semiconductors and organic fine chemistry are SHOWA SHELL SEKIYU, YUAN YING and YAMAMOTO YOSHIAKI.

Patent filings per year

Chart showing IDEMITSU KOSAN COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hosokawa Chishio 1,212
#2 Kawamura Masahiro 684
#3 Inoue Kazuyoshi 591
#4 Funahashi Masakazu 497
#5 Nishimura Kazuki 428
#6 Kaneko Masato 425
#7 Iwakuma Toshihiro 419
#8 Mizuki Yumiko 372
#9 Ito Mitsunori 366
#10 Fukuoka Kenichi 355

Latest patents

Publication Filing date Title
WO2021070963A1 Compound, material for organic electroluminescent element, organic electroluminescent element, and electronic device
WO2021070965A1 Compound, material for organic electroluminescent elements, organic electroluminescent element, and electronic device
WO2021070964A1 Compound, material for organic electroluminescent elements, organic electroluminescent element, and electronic device
WO2021066059A1 Compound, material for organic electroluminescent element, organic electroluminescent element, and electronic device
WO2021065968A1 Resin laminate for low-dielectric material
WO2021075267A1 Method for producing propylene oligomer
WO2021065774A1 Organic electroluminescent element and electronic device
WO2021065773A1 Organic electroluminescent element and electronic device
WO2021065775A1 Organic electroluminescent element and electronic device
WO2021060551A1 Olefin-based resin and hot-melt adhesive
WO2021065772A1 Organic electroluminescent element and electronic appliance
WO2021060422A1 Viscosity index improver composition and lubricating oil composition
WO2021060384A1 Compound, material for organic electroluminescent element, organic electroluminescent element, and electronic device
WO2021060381A1 Thermosetting composition, molded article manufacturing method using same, and cured product
WO2021060415A1 Lubricating oil composition
WO2021060239A1 Compound, organic electroluminescent element material, organic electroluminescent element, and electronic device
WO2021054433A1 Solid electrolyte and method for producing same
WO2021060206A1 Lubricating oil composition for refrigerators
WO2021060193A1 Compound, material for organic electroluminescent elements, organic electroluminescent element, and electronic device
WO2021054412A1 Method for producing solid electrolyte