Inventor · disambiguated record
Naofumi Butta
Also filed as: BUTTA NAOFUMI
4 granted patents·1 pending application·5 citations·filing 2019–2022
61Inventor score
Technology areasF16H
Files withMUSASHI SEIMITSU KOGYO KK5
Top patents by PatentIndex Score
5 records- 0175US11739827B2Transmission deviceMUSASHI SEIMITSU KOGYO KK·Filed 2019·Granted Aug 29, 2023·2 cites·20 claims
- 0275US11649882B2Transmission deviceMUSASHI SEIMITSU KOGYO KK·Filed 2019·Granted May 16, 2023·3 cites·12 claims
- 0348US12422036B2Breather structure in power unitMUSASHI SEIMITSU KOGYO KK·Filed 2022·Granted Sep 23, 2025·0 cites·5 claims
- 0441US12510149B2Transmission deviceMUSASHI SEIMITSU KOGYO KK·Filed 2022·Granted Dec 30, 2025·0 cites·2 claims
- 0539US2025172205A1Transmission device and power unitMUSASHI SEIMITSU KOGYO KK·Filed 2022·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →