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NIPPON KAYAKU KK

Overview
  • Total Patents
    14,483
  • GoodIP Patent Rank
    620
  • Filing trend
    ⇩ 15.0%
About

NIPPON KAYAKU KK has a total of 14,483 patent applications. It decreased the IP activity by 15.0%. Its first patent ever was published in 1951. It filed its patents most often in Japan, WIPO (World Intellectual Property Organization) and China. Its main competitors in its focus markets macromolecular chemistry and polymers, basic materials chemistry and organic fine chemistry are DAICEL CORP, BASF SE and NIPPONKAYAKU KK.

Patent filings per year

Chart showing NIPPON KAYAKU KKs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Yokoshima Minoru 814
#2 Nakanishi Masataka 514
#3 Akatsuka Yasumasa 399
#4 Tsugawa Hiroaki 356
#5 Kuboki Kenichi 347
#6 Shirasaki Yasuo 269
#7 Mochizuki Noriaki 263
#8 Matsuo Yuichiro 256
#9 Oshimi Katsuhiko 255
#10 Motohashi Hayato 215

Latest patents

Publication Filing date Title
WO2021060247A1 Retardation plate, and circular polarization plate, liquid crystal display device, and organic el display device including retardation plate
WO2021054161A1 Fused polycyclic aromatic compound
WO2021049295A1 Image display system and head-up display system
WO2021039685A1 Coloring fluid, coloring fluid set, recording medium, and coloring method
WO2021039394A1 Optical film, optical laminate, functional glass, and head-up display
JP2020192531A Method for filling solid catalyst
WO2021015188A1 Azo compound, and polarizing film and polarizing plate including same
WO2021010337A1 Light-emitting compound or salt thereof, and polarized light-emitting element, polarized light-emitting plate, and display device containing same
WO2021010340A1 Luminescent compound or salt thereof, and polarized light emitting element, polarized light emitting plate and display device each using same
WO2021010331A1 Light-emitting compound or salt thereof, and polarizing light-emitting element, polarizing light-emitting plate and display device including same
WO2021010351A1 Polarized light emitting element using light emitting compound or salt thereof, polarized light emitting plate, and display device
CN112209943A Material for photoelectric conversion element, organic thin film, photoelectric conversion element, imaging element, photosensor, and compound
WO2021006211A1 Ink and ink-jet recording method
WO2021002440A1 Highly durable dye-based polarizing plate containing near-infrared absorbing dye
WO2021010141A1 Polarized light-emitting film containing water-soluble coumarin compound or salt thereof, polarized light-emitting plate, and display device
JP2020152727A Re-startup method
WO2020246342A1 Ink composition and ink-jet recording method including using same
WO2020235560A1 Colored dispersion, recording medium, and textile printing method for hydrophobic fibers
WO2020230647A1 Achromatic polarizer, achromatic polarizing plate using same, and display device
JP2020100405A Gas generator