Inventor · disambiguated record
Sachiko Fukushima
Also filed as: FUKUSHIMA SACHIKO
5 granted patents·1 pending application·0 citations·filing 2021–2022
57Inventor score
Files withRAKUTEN GROUP INC6
Top patents by PatentIndex Score
6 records- 0146US12493832B2Check-in system, check-in method and programRAKUTEN GROUP INC·Filed 2021·Granted Dec 9, 2025·0 cites·21 claims
- 0246US12315001B2Electronic payment system, electronic payment method, and information storage mediumRAKUTEN GROUP INC·Filed 2022·Granted May 27, 2025·0 cites·19 claims
- 0345US12432522B2Service providing system, service providing method and programRAKUTEN GROUP INC·Filed 2021·Granted Sep 30, 2025·0 cites·18 claims
- 0444US12407683B2Authentication system, authentication method and programRAKUTEN GROUP INC·Filed 2021·Granted Sep 2, 2025·0 cites·14 claims
- 0540US2024211562A1Authentication system, authentication method and programRAKUTEN GROUP INC·Filed 2021·Application pending·0 cites
- 0636US11941657B2Information processing system, method, and mediumRAKUTEN GROUP INC·Filed 2021·Granted Mar 26, 2024·0 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →