This inventor holds 1 USPTO granted patent and 1 published patent application. Top assignee: Sansha Electric Manufacturing Company, Limited. 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:
Years Active: 2026
Title: Kazunori Doi: Inventor in Three-Phase Power Supply Technology.
Introduction
Kazunori Doi is an inventor based in Osaka, Japan, associated with Sansha Electric Manufacturing Company, Limited. His patent work includes a power supply device designed to generate unbalanced three-phase voltages, including a zero-phase component.
Latest Patents
Doi is credited with 1 patent: “Unbalanced Three-Phase Power Supply Device and Power Supply for Evaluation.” The invention describes a control circuit and a main circuit that work together to produce an external unbalanced three-phase voltage. The output’s phase, frequency, and amplitude correspond to specified command values for the U, V, and W phases. Its DC power supply, three-phase inverter, and three-phase transformer are configured to support output of a zero-phase component.
Career Highlights
Doi’s listed patent reflects work on power-conversion equipment and evaluation power supplies. The disclosed design combines voltage-command generation and pulse modulation with a three-phase inverter and transformer.
Collaborations
Doi’s listed coworkers include Atsushi Makitani and Kazuo Suekane. The available information identifies them as coworkers but does not specify their roles in the patent.
Conclusion
Kazunori Doi’s patent documents a three-phase power supply design capable of producing controlled unbalanced voltages with a zero-phase component.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile