This inventor holds 3 USPTO granted patents and 1 EPO patent. Top assignee: Mitsubishi Electric Corporation. Active years: 2010-2014.
Company Filing History:
Years Active: 2010-2014
Title: Jun Sawaki - Innovator in Power Conversion Technology
Introduction
Jun Sawaki is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of power conversion technology. With a total of 3 patents to his name, Sawaki continues to push the boundaries of innovation in his industry.
Latest Patents
One of his latest patents is a controller of a power converter that utilizes pulse width modulation. This innovative controller includes an inverter with multiple semiconductor switching elements. It effectively suppresses errors between a voltage command and the inverter output voltage, responding to voltage commands at high speed. The controller features a voltage command generator that produces a voltage command signal and a switching pattern calculator that determines a switching pattern for a synchronous PWM system. This ensures that the average value of the inverter output voltage aligns with the voltage command signal.
Another notable patent is a controller that manages a switching element of an inverter using pulse width modulation. This controller is applied to a power converter, enabling stable changes in carrier frequency, improved current control responsiveness, and reduced inverter losses. It includes a carrier-frequency setting unit that establishes a carrier frequency command based on the current command and its change rate. The unit utilizes a carrier frequency map to output the appropriate carrier frequency information to the switching pattern calculator.
Career Highlights
Jun Sawaki is currently employed at Mitsubishi Electric Corporation, where he continues to develop cutting-edge technologies in power conversion. His work has been instrumental in advancing the efficiency and reliability of power systems.
Collaborations
Throughout his career, Sawaki has collaborated with notable colleagues, including Shinichi Furutani and Akira Satake. These partnerships have fostered a creative environment that encourages innovation and the sharing of ideas.
Conclusion
Jun Sawaki is a key figure in the realm of power conversion technology, with a focus on enhancing the performance of power converters. His patents reflect his commitment to innovation and excellence in engineering.