This inventor holds 1 USPTO granted patent and 1 published patent application. Top assignees: Hyundai Motor Company, Incheon University Industry Academic Cooperation Foundation, Kia Corporation. Active years: 2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
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Years Active: 2026
Title: Ki-Sang Lee: Inventor of a Power Factor Correction Switching Method
Introduction
Ki-Sang Lee is an inventor associated with Hwaseong, South Korea. His patent work includes a method for reducing leakage current in a power factor correction circuit. The provided information also lists Hyundai Motor Company and Kia Corporation among the companies he worked with.
Latest Patents
Lee is credited with 1 patent: “Power factor correction circuit switching method for reducing leakage current.” The method describes an initial charging operation that raises an output capacitor’s voltage, followed by further charging based on preset reference voltages. It then switches two poles in the power factor correction circuit at different duty ratios, depending on whether the capacitor voltage reaches a second preset reference voltage.
Career Highlights
The available information connects Lee’s career with Hyundai Motor Company and Kia Corporation. His patent focuses on controlling power factor correction circuit switching and reducing leakage current.
Collaborations
Lee’s listed coworkers include Ye-Rin Lee and Dae-woo Lee. The provided information does not specify their roles or the nature of their collaboration.
Conclusion
Ki-Sang Lee’s recorded patent describes a staged capacitor-charging and switching method intended to reduce leakage current in a power factor correction circuit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile