Inventor
TAMURA KAZUSHI
JP7 patents
Patents
7 patentsUS10155915B2Dec 18, 2018
Lubricating oil composition and method for reducing friction in internal combustion engines
IDEMITSU KOSAN CO7 citations79
US11535808B2Dec 27, 2022
Lubricating oil composition
IDEMITSU KOSAN CO2 citations68
US11820954B2Nov 21, 2023
Lubricant composition for transmission, production method thereof, lubricating method using lubricant composition for transmission, and transmission
IDEMITSU KOSAN CO0 citations58
US11572525B2Feb 7, 2023
Lubricating oil composition
IDEMITSU KOSAN CO0 citations58
US10781395B2Sep 22, 2020
Lubricant composition for gasoline engine and method for producing same
IDEMITSU KOSAN CO1 citations58
US10865360B2Dec 15, 2020
Lubricating oil composition for engine equipped with supercharging mechanism, method for suppressing low-speed pre-ignition in engine equipped with supercharging mechanism using lubricating oil composition, and method for manufacturing lubricating oil composition
IDEMITSU KOSAN CO0 citations38
US10584302B2Mar 10, 2020
Lubricating oil composition and method for manufacturing said lubricating oil composition
IDEMITSU KOSAN CO0 citations37