Inventor · disambiguated record
Keiichi Okubo
Also filed as: OKUBO KEIICHI
2 granted patents·9 pending applications·0 citations·filing 2023–2025
23Inventor score
Top patents by PatentIndex Score
11 records- 0165US12498350B2Systems and methods for assessing the quality of electrocatalyst-loaded disk electrodesTOYOTA ENG & MFG NORTH AMERICA·Filed 2023·Granted Dec 16, 2025·0 cites·20 claims
- 0263US12444754B2Electrochemical oxygen reduction catalyst, air electrode, fuel cell, and metal-air cellTOYOTA MOTOR CO LTD·Filed 2023·Granted Oct 14, 2025·0 cites·18 claims
- 0361US2025316716A1Electrochemical oxygen reduction catalystTOYOTA MOTOR CO LTD·Filed 2024·Application pending·0 cites
- 0461US2025316718A1Electrochemical oxygen reduction catalystTOYOTA MOTOR CO LTD·Filed 2024·Application pending·0 cites
- 0555US2024047700A1CatalystTOYOTA MOTOR CO LTD·Filed 2023·Application pending·0 cites
- 0655US2024093384A1Water electrolysis systemTOYOTA MOTOR CO LTD·Filed 2023·Application pending·0 cites
- 0755US2024021842A1CatalystTOYOTA MOTOR CO LTD·Filed 2023·Application pending·0 cites
- 0854US2024274839A1Surface modified oxygen reduction electrochemcial catalystsTOYOTA ENG & MFG NORTH AMERICA·Filed 2023·Application pending·0 cites
- 0953US2025357517A1Ionomer, fuel cell, and method of producing ionomerTOYOTA MOTOR CO LTD·Filed 2025·Application pending·0 cites
- 1053US2023307747A1Electrochemical oxygen reduction catalyst, air electrode, fuel cell and metal-air cellTOYOTA MOTOR CO LTD·Filed 2023·Application pending·0 cites
- 1138US2025333854A1Water electrolysis systemTOYOTA MOTOR CO LTD·Filed 2025·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →