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YAMADA CHEM CO

Overview
  • Total Patents
    276
  • GoodIP Patent Rank
    77,926
  • Filing trend
    ⇧ 25.0%
About

YAMADA CHEM CO has a total of 276 patent applications. It increased the IP activity by 25.0%. Its first patent ever was published in 1975. It filed its patents most often in Japan, United Kingdom and United States. Its main competitors in its focus markets textiles and paper, organic fine chemistry and basic materials chemistry are YAMAMOTO KAGAKU GOSEI KK, SHIN NISSO KAKO CO LTD and HILTON DAVIS CHEMICAL CO.

Patent filings per year

Chart showing YAMADA CHEM COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Tsunemitsu Katsuhiko 136
#2 Kawai Hajime 112
#3 Taniguchi Masatoshi 43
#4 Fujino Yoshiharu 39
#5 Mizuno Kozo 33
#6 Shimizu Yoji 30
#7 Fujisaki Hideaki 28
#8 Nakai Toshiyuki 27
#9 Narizuka Toshiro 25
#10 Madono Satoyuki 24

Latest patents

Publication Filing date Title
JP2019189869A Dye compound
JP2020105104A Photochromic compound
KR20200101920A Tetraazaporphyrin compound
JP2020037631A Coloring matter compound, optical filter, and coloring matter composition for spectacle lens
JP2018188565A Dye compound
JP2018188564A Dye compound
JP2017206640A Dye compound
JP2017165858A Metal complex compound, nitrogen-containing heterocyclic compound, dye for optical filter, coloring composition and optical filter
JP2017068221A Color correction mirror
JP2016124964A Resin composition for laser welding
JP2016108431A Phthalocyanine compound, near-infrared absorbing dye and near-infrared absorbing material
JP2016017242A Near infrared reflective polyamide fiber
JP2016011348A Tetraazaporphyrin compound, color correction filter and external light correction filter
WO2014208514A1 Phthalocyanine compound, near infrared ray-absorbing dye, and near infrared ray-absorbing material
KR20150107729A Phthalocyanine compound, near-infrared absorbing dye, and near-infrared absorbing material
JP2014130249A Color correction filter, illumination device and display device
JP2014130763A Color correction filter for white organic el light source, luminaire, and display device
JP2014130250A Color correction filter, illumination device and display device
KR20130045800A Phthalocyanine compound, near-infrared ray absorbing coloring matter and near-infrared ray absorbing material
JP2013108060A Phthalocyanine compound, near infrared absorbing pigment, and near infrared absorption material