Inventor

KATAYAMA KIYOKAZU

JP12 patents

⚠️ This page may combine multiple inventors who share the name “KATAYAMA KIYOKAZU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

IDEMITSU KOSAN CO

7 patents

US6870022B2Mar 22, 2005

Process for producing α-olefin polymer

IDEMITSU KOSAN CO16 citations80

US7737069B2Jun 15, 2010

Magnesium compound, catalyst for olefin polymerization and method for producing olefin polymer

IDEMITSU KOSAN CO5 citations60

US7754640B2Jul 13, 2010

Magnesium compound, solid catalyst component, catalyst for ethylene polymerization and method of producing ethylene polymer

IDEMITSU KOSAN CO2 citations59

US12351765B2Jul 8, 2025

Saturated aliphatic hydrocarbon compound composition, lubricant composition, and method for producing saturated aliphatic hydrocarbon compound composition

IDEMITSU KOSAN CO0 citations57

US12428607B2Sep 30, 2025

Lubricant composition

IDEMITSU KOSAN CO0 citations55

US7723254B2May 25, 2010

Magnesium compound, solid catalyst component, olefin polymerization catalyst, and method for producing olefin polymer

IDEMITSU KOSAN CO1 citations49

US9745396B2Aug 29, 2017

Methods for producing α-olefin polymer and hydrogenated α-olefin polymer

IDEMITSU KOSAN CO0 citations39

IDEMITSU PETROCHEMICAL CO

4 patents

US6552136B1Apr 22, 2003

Organosilicon compound, catalyst for olefin polymer production, and method for producing olefin polymer

IDEMITSU PETROCHEMICAL CO18 citations82

US6204215B1Mar 20, 2001

Solid catalyst component for olefin polymerization, catalyst for olefin polymerization, and method for producing olefin polymers

IDEMITSU PETROCHEMICAL CO11 citations72

US6495639B1Dec 17, 2002

Solid catalyst component for olefin polymerization, catalyst for olefin polymerization, and method for producing olefin polymers

IDEMITSU PETROCHEMICAL CO4 citations61

US6331620B1Dec 18, 2001

Solid catalyst components for olefin polymerization, catalysts for olefin polymerization and process for producing olefin polymers

IDEMITSU PETROCHEMICAL CO5 citations61

KATAYAMA KIYOKAZU

1 patent

US9023960B2May 5, 2015

Process for producing α-olefin polymer, α-olefin polymer, and lubricating oil composition

KATAYAMA KIYOKAZU1 citations43