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SUMIKIN CHEMICAL

Overview
  • Total Patents
    284
  • GoodIP Patent Rank
    232,175
About

SUMIKIN CHEMICAL has a total of 284 patent applications. Its first patent ever was published in 1986. It filed its patents most often in Japan, United States and EPO (European Patent Office). Its main competitors in its focus markets environmental technology, organic fine chemistry and materials and metallurgy are SPOLANA A S, UFIM Z SINT SPIRTA IM 40 LETIY and BLUESTAR NEW CHEMICAL MATERIALS CO LTD.

Patent filings in countries

World map showing SUMIKIN CHEMICALs patent filings in countries
# Country Total Patents
#1 Japan 261
#2 United States 11
#3 EPO (European Patent Office) 9
#4 China 1
#5 Finland 1
#6 WIPO (World Intellectual Property Organization) 1

Patent filings per year

Chart showing SUMIKIN CHEMICALs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Sato Toshio 74
#2 Ito Ikuo 60
#3 Takeda Kyoichi 37
#4 Sone Yoshihisa 35
#5 Yokota Keiichi 34
#6 Maeda Kazuhiko 23
#7 Namekata Takeshi 20
#8 Yamada Teruaki 20
#9 Minami Ryohei 19
#10 Takeya Shoji 18

Latest patents

Publication Filing date Title
JP2002327035A Phenolic polymer, its production method, curing agent for epoxy resin, epoxy resin composition for semiconductor sealing and semiconductor device using the same
JP2002275228A Phenolic polymer, method for producing the same and epoxy resin curing agent using the same
JP2002193388A Dangerous substance storage tank having explosion release structure
JP2002187867A Method for producing anthracene-9-carboxylic acid
JP2002187878A Method for producing thiosalicylic acid
JP2002179662A Method for producing n-monoacylpiperazine
JP2002088063A Method for producing heterocyclic aromatic carboxylic acid
JP2002088014A Method for producing carbocyclic aromatic carboxylic acids
JP2002080455A Method for purifying 5,6,7,8-tetrahydroquinoline
JP2002053643A Curing agent for epoxy resin and semiconductor sealing composition containing the agent
JP2001276765A Method and apparatus for removing sludge accumulated in tank
JP2001278864A Method for producing 4-methoxyquinolines
JP2001278865A Method for producing 4-aminoquinolines
JP2001278954A Hardening agent for epoxy resin and composition for semiconductor sealing using the same
JP2001278879A Method for producing thiophenemethanol
JP2001261642A Method for producing 1-alkylindole-3-carboxylic acid compounds
JP2001213946A Phenol aralkyl resin and its manufacturing method
JP2001122857A Production of indole-3-carboxylic acids
JP2001106672A Method for producing 2,5-dichloropyridine
JP2001072663A Production of indoline derivative