Inventor

TSUYAMA TOMOKO

JP4 patents

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

MITSUI MINING & SMELTING CO LTD

2 patents

US11208931B2Dec 28, 2021

Exhaust gas purification catalyst

MITSUI MINING & SMELTING CO LTD7 citations83

US11913367B2Feb 27, 2024

Exhaust gas purification catalyst

MITSUI MINING & SMELTING CO LTD1 citations61

WADA KATSUJI

1 patent

US8453433B2Jun 4, 2013

Exhaust gas purification device for internal combustion engine

WADA KATSUJI2 citations59

HONDA MOTOR CO LTD

1 patent

US11529578B2Dec 20, 2022

Exhaust gas purification filter

HONDA MOTOR CO LTD0 citations50