Inventor
IGARASHI JINICHI
JP11 patents
⚠️ This page may combine multiple inventors who share the name “IGARASHI JINICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON OIL CO LTD
6 patentsUS5281347AJan 25, 1994
Lubricating composition for internal combustion engine
NIPPON OIL CO LTD30 citations92
US5912212AJun 15, 1999
Lubricating oil composition
NIPPON OIL CO LTD53 citations91
US5658865AAug 19, 1997
Oxidation-inhibitive lubricating oil composition
NIPPON OIL CO LTD23 citations91
US5372703ADec 13, 1994
Lubricating oils
NIPPON OIL CO LTD39 citations89
US5658866AAug 19, 1997
Lubricating oil compositions
NIPPON OIL CO LTD10 citations72
US4992150AFeb 12, 1991
Process for preparing oil-soluble nitrogen-containing compounds
NIPPON OIL CO LTD12 citations71
NIPPON MITSUBISHI OIL CORP
4 patentsUS6656887B2Dec 2, 2003
Lubricating oil compositions
NIPPON MITSUBISHI OIL CORP35 citations91
US6642189B2Nov 4, 2003
Engine oil compositions
NIPPON MITSUBISHI OIL CORP37 citations91
US6569819B2May 27, 2003
Lubricant compositions
NIPPON MITSUBISHI OIL CORP33 citations91
US6627583B2Sep 30, 2003
Engine oil composition
NIPPON MITSUBISHI OIL CORP3 citations58