Inventor · disambiguated record
Masafumi Umekawa
Also filed as: UMEKAWA MASAFUMI
2 granted patents·4 pending applications·0 citations·filing 2010–2024
24Inventor score
Top patents by PatentIndex Score
6 records- 0169US12469924B2Secondary battery, electronic device, and power toolMURATA MANUFACTURING CO·Filed 2022·Granted Nov 11, 2025·0 cites·9 claims
- 0268US2024405352A1Secondary batteryMURATA MANUFACTURING CO·Filed 2024·Application pending·0 cites
- 0358US2022149445A1Secondary battery, battery pack, electronic equipment, electric tool, and electric vehicleMURATA MANUFACTURING CO·Filed 2022·Application pending·0 cites
- 0450US10790490B2Battery, battery can, battery pack, electronic device, electric vehicle, electricity storage device, and electric power systemMURATA MANUFACTURING CO·Filed 2016·Granted Sep 29, 2020·0 cites·19 claims
- 0539US2010310911A1Battery packSONY CORP·Filed 2010·Application pending·0 cites
- 0635US2018175333A1Battery, battery can, battery pack, electronic device, electric vehicle, power storage device, and power systemSONY CORP·Filed 2016·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →