Inventor

MARUMO MIYOSHI

JP2 patents

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

TONENGENERAL SEKIYU K K

1 patent

US7399736B2Jul 15, 2008

Low viscosity, high abrasion resistance engine oil composition

TONENGENERAL SEKIYU K K1 citations40

YOKOYAMA YASUHARU

1 patent

US8691739B2Apr 8, 2014

Lubricating oil composition

YOKOYAMA YASUHARU0 citations37