Tomoyasu Yamada is a prominent inventor based in Niiza, Japan. He has made significant contributions to the field of electrical engineering, particularly in the development of power source devices and converters. With a total of 14 patents to his name, Yamada's work has had a substantial impact on modern technology.

Latest Patents

Yamada's latest patents include a Switching Power Source Device and a DC-DC Converter. The Switching Power Source Device features an N channel MOS transistor whose ON duration is determined by a target voltage at a node between a resistor and a light receiving element of a photocoupler. A comparator is utilized to compare this target voltage with a reference voltage, allowing for efficient switching between normal and low frequency operation modes. This innovation reduces switching energy and suppresses noise during low frequency operations. The DC-DC Converter, on the other hand, includes a control circuit that generates on-off signals for a MOS-FET in synchronization with pulse signals from an oscillator. This design allows for intermittent operation during light load periods, enhancing efficiency and performance.

Career Highlights

Yamada is currently employed at Sanken Electric Co., Ltd., where he continues to innovate and develop new technologies. His work has been instrumental in advancing the capabilities of power electronics, making significant strides in energy efficiency and performance.

Collaborations

Some of Yamada's notable coworkers include Masaaki Shimada and Masaaki Simada. Their collaborative efforts have contributed to the success of various projects within the company.

Conclusion

Tomoyasu Yamada's contributions to the field of electrical engineering are noteworthy, with his innovative patents paving the way for advancements in power source technology. His work continues to influence the industry and inspire future innovations.

Profile summary based on public USPTO records.

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