Inventor
KUSUMOTO TATSUYA
JP5 patents
⚠️ This page may combine multiple inventors who share the name “KUSUMOTO TATSUYA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
IDEMITSU KOSAN CO
4 patentsUS12222344B2Feb 11, 2025
Method for using lubricating oil composition and method for evaluating degradation
IDEMITSU KOSAN CO0 citations57
US11034908B2Jun 15, 2021
Lubricant composition
IDEMITSU KOSAN CO1 citations49
US10301570B2May 28, 2019
Lubricating oil composition for internal combustion engine
IDEMITSU KOSAN CO0 citations39
US10793803B2Oct 6, 2020
Gasoline engine lubricant oil composition and manufacturing method therefor
IDEMITSU KOSAN CO0 citations33