Haruyoshi Mori

Title: Haruyoshi Mori: Innovator in Transistor Technology

Introduction

Haruyoshi Mori is a prominent inventor based in Kobe, Japan. He has made significant contributions to the field of electronics, particularly in the development of advanced transistor technologies. With a total of 6 patents to his name, Mori's work has had a lasting impact on the industry.

Latest Patents

Mori's latest patents include a voltage-controlled transistor drive circuit and an insulated gate transistor drive circuit. The voltage-controlled transistor drive circuit features a gate-voltage generating circuit that outputs on and off gate signal voltages in response to an input signal. This innovation allows for the effective switching of a voltage-controlled transistor by applying the gate voltage to its gate. Additionally, the current limiting circuit ensures that the current flowing from the gate of the transistor to the gate-voltage generating circuit is limited when an off gate signal voltage is outputted.

The insulated gate transistor drive circuit improves the cutoff process of a collector current by dividing it into an emitter-to-collector voltage recovery period and a collector current cutoff period. During the recovery period, the resistance of the gate resistor is reduced, while it is increased during the cutoff period. This arrangement shortens the cutoff time, thereby reducing switching loss and suppressing surge voltage.

Career Highlights

Haruyoshi Mori is associated with Mitsubishi Electric Corporation, where he has been instrumental in advancing transistor technology. His innovative designs and solutions have contributed to the company's reputation as a leader in the electronics industry.

Collaborations

Mori has collaborated with notable colleagues such as Satoru Chikai and Tomohiro Kobayashi. Their combined expertise has fostered a creative environment that encourages innovation and the development of cutting-edge technologies.

Conclusion

Haruyoshi Mori's contributions to transistor technology exemplify the spirit of innovation. His patents reflect a deep understanding of electronic systems and a commitment to improving their efficiency and performance. His work continues to influence the field and inspire future advancements in technology.