Tokuya WATANABE

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Saitama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Exhaust gas purification catalyst
- Patent number 11,458,460
- Issue date Oct 4, 2022
- Mitsui Mining & Smelting Co., Ltd.
- Hiroki Tanaka
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES

Patents Applicationslast 30 patents

Information Patent Application
EXHAUST GAS PURIFICATION CATALYST COMPOSITION, EXHAUST GAS PURIFICA...
- Publication number 20250235822
- Publication date Jul 24, 2025
- Mitsui Mining and Smelting Co., Ltd.
- Akihiro ISAYAMA
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
EXHAUST GAS PURIFICATION CATALYST
- Publication number 20220176353
- Publication date Jun 9, 2022
- Mitsui Mining and Smelting Co., Ltd.
- Hiroki TANAKA
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES