KK

Kiyokazu Katayama

IC Idemitsu Kosan Co.: 8 patents #189 of 1,237Top 20%
IC Idemitsu Petrochemical Co.: 4 patents #94 of 578Top 20%
Overall (All Time): #398,539 of 4,157,543Top 10%
12
Patents All Time

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDate
12428607 Lubricant composition Yuji KOMURO, Kiyohiko Yokota 2025-09-30
12351765 Saturated aliphatic hydrocarbon compound composition, lubricant composition, and method for producing saturated aliphatic hydrocarbon compound composition Kiyohiko Yokota, Kanako Samejima, Narinobu Kagami, Kouta OBA, Naoyuki Ueda +1 more 2025-07-08
9745396 Methods for producing α-olefin polymer and hydrogenated α-olefin polymer Hideaki Noda 2017-08-29
9023960 Process for producing α-olefin polymer, α-olefin polymer, and lubricating oil composition Hideaki Noda, Hitomi Shimizu, Kiyohiko Yokota 2015-05-05
7754640 Magnesium compound, solid catalyst component, catalyst for ethylene polymerization and method of producing ethylene polymer Shojiro Tanase, Hideaki Noda, Takehito Konakazawa 2010-07-13
7737069 Magnesium compound, catalyst for olefin polymerization and method for producing olefin polymer Shojiro Tanase, Nobuhiro Yabunouchi, Takehito Konakazawa, Takanori Sadashima, Kenji Tanaka +1 more 2010-06-15
7723254 Magnesium compound, solid catalyst component, olefin polymerization catalyst, and method for producing olefin polymer Shojiro Tanase, Nobuhiro Yabunouchi, Takehito Konakazawa, Takanori Sadashima 2010-05-25
6870022 Process for producing α-olefin polymer Takeshi Iwasaki, Tadanori Jyunke, Kenji Tanaka 2005-03-22
6552136 Organosilicon compound, catalyst for olefin polymer production, and method for producing olefin polymer Tsuyoshi Ota, Takanori Sadashima, Yasunori Kadoi, Toshio Isozaki 2003-04-22
6495639 Solid catalyst component for olefin polymerization, catalyst for olefin polymerization, and method for producing olefin polymers Yasunori Kadoi, Tsuyoshi Ota, Toshio Isozaki, Takanori Sadashima 2002-12-17
6331620 Solid catalyst components for olefin polymerization, catalysts for olefin polymerization and process for producing olefin polymers Yasunori Kadoi, Tsuyoshi Ota, Toshio Isozaki, Takanori Sadashima 2001-12-18
6204215 Solid catalyst component for olefin polymerization, catalyst for olefin polymerization, and method for producing olefin polymers Yasunori Kadoi, Tsuyoshi Ota, Toshio Isozaki, Takanori Sadashima 2001-03-20