Inventor · disambiguated record
Yihua Chang
Also filed as: CHANG YIHUA · CHANG YIHUA E
3 granted patents·18 citations·filing 1983–2023
60Inventor score
Top patents by PatentIndex Score
3 records- 0177US12267020B2Isolated resonant DC-DC converterDELTA ELECTRONICS INC·Filed 2023·Granted Apr 1, 2025·0 cites·14 claims
- 0270US11791733B2Isolated resonant DC-DC converters and control methods thereofDELTA ELECTRONICS INC·Filed 2021·Granted Oct 17, 2023·0 cites·20 claims
- 0370US4608706AHigh-speed programmable timing generatorIBM·Filed 1983·Granted Aug 26, 1986·18 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →