Inventor
OYAMADA HANAKO
JP5 patents
⚠️ This page may combine multiple inventors who share the name “OYAMADA HANAKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
JOHNSON MATTHEY PLC
3 patentsUS9868115B2Jan 16, 2018
Oxidation catalyst for internal combustion engine exhaust gas treatment
JOHNSON MATTHEY PLC13 citations92
US10773251B2Sep 15, 2020
Oxidation catalyst for internal combustion engine exhaust gas treatment
JOHNSON MATTHEY PLC4 citations84
US10376867B2Aug 13, 2019
Oxidation catalyst for internal combustion engine exhaust gas treatment
JOHNSON MATTHEY PLC9 citations84