Inventor · disambiguated record
Tetsumasa Yoshikawa
Also filed as: YOSHIKAWA TETSUMASA
4 granted patents·1 pending application·15 citations·filing 2013–2024
68Inventor score
Top patents by PatentIndex Score
5 records- 0189US11595515B2System and method of caller verificationRINGCENTRAL INC·Filed 2019·Granted Feb 28, 2023·9 cites·23 claims
- 0276US9423932B2Zoom view mode for digital content including multiple regions of interestNOOK DIGITAL LLC·Filed 2013·Granted Aug 23, 2016·6 cites·20 claims
- 0373US2025080647A1System and method of caller verificationRINGCENTRAL INC·Filed 2024·Application pending·0 cites
- 0472US12170742B2System and method of caller verificationRINGCENTRAL INC·Filed 2023·Granted Dec 17, 2024·0 cites·20 claims
- 0538US9936434B2Method and phone system for pre-call quality of service assessment of available networksRINGCENTRAL INC·Filed 2016·Granted Apr 3, 2018·0 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →