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KOA OIL CO LTD

Overview
  • Total Patents
    276
About

KOA OIL CO LTD has a total of 276 patent applications. Its first patent ever was published in 1975. It filed its patents most often in Japan, United States and Canada. Its main competitors in its focus markets basic materials chemistry, thermal processes and materials and metallurgy are COMBUSTIBLES IND DES, THERMAL IND & CHEMICAL T I C R and SICHUAN CHUANGYUE CARBON MATERIAL CO LTD.

Patent filings per year

Chart showing KOA OIL CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Tanaka Honami 81
#2 Kitajima Eiji 66
#3 Noguchi Kosaku 65
#4 Kumura Yukimasa 39
#5 Noguchi Kousaku 36
#6 Sunada Tomonori 34
#7 Fujii Masaki 26
#8 Yamazaki Heima 25
#9 Ishitobi Toshifumi 22
#10 Yoshimura Seiji 20

Latest patents

Publication Filing date Title
JP2003051430A Ingredient composition of carbon material for electric double-layer capacitor and manufacturing method therefor, and electric double-layer capacitor and manufacturing method therefor
JPH10102069A Fuel oil base material of high quality and production of fuel oil of high quality
JPH10101586A Production of low-branching octene
EP0734766A1 Olefin oligomerization catalyst, process for preparing the same, and olefin oligomerization process using the same
JPH08323207A Low polymerization method of olefin, catalyst therefor and production of the catalyst
JPH08301796A Production of 8c aromatic hydrocarbon
JPH07300591A Production of light gas oil base material
JPH08206687A Treatment of drainage
JPH08206689A Treatment of drainage
JPH08112045A Method for mass production of seed and seedling of plant of genus fritillaria
JPH07138192A Oligomerization of olefin
JPH0797343A Method for polymerizing lower olefin into low polymer and catalyst for low polymerization
JPH07309786A Production of low-branch olefin oligomers
JPH07130406A Air-depolarized cell
JPH0770829A Production of pitch-based extra fine carbon fiber
JPH0742026A Production of pitch-based ultrafine carbon fiber and apparatus therefor
JPH0640771A Production of metal dispersed carbon material
JPH06287227A Production of less branched olefinic low polymer
JPH0685346A Piezoelectric composite material
JPH06187987A Nonaqueous secondary battery and negative electrode material for nonaqueous secondary battery