Nobuhisa Yoshikawa

Title: Nobuhisa Yoshikawa: Innovator in Inverter Driven Technologies

Introduction

Nobuhisa Yoshikawa is a prominent inventor based in Sakai, Japan. He has made significant contributions to the field of electrical engineering, particularly in the development of inverter-driven technologies. With a total of 5 patents to his name, Yoshikawa's work has had a lasting impact on the industry.

Latest Patents

Yoshikawa's latest patents include an innovative inverter driven lamp arrangement that features current detection circuitry. This invention allows for the sensing of both lamp voltage and current, providing a large current during low voltage and a small current during high voltage. The current detection is facilitated by a detector connected to a resonance circuit, which is crucial for the lamp start control circuit. Another notable patent is a fluorescent lamp starter that incorporates a transistor base control means. This design includes a series circuit connected to a power source, a transistor, and a control voltage supply means, enhancing the efficiency of fluorescent lamps.

Career Highlights

Yoshikawa is currently associated with Matsushita Electric Industrial Co., Ltd., a leading company in the electronics sector. His work at Matsushita has allowed him to explore and develop cutting-edge technologies that have advanced the field of electrical engineering.

Collaborations

Throughout his career, Yoshikawa has collaborated with notable colleagues such as Shigeru Horii and Kazutaka Koyama. These collaborations have fostered innovation and have contributed to the successful development of various technologies.

Conclusion

Nobuhisa Yoshikawa's contributions to inverter-driven technologies and fluorescent lamp systems highlight his role as a key innovator in the field. His patents reflect a commitment to enhancing electrical engineering solutions, making a significant impact on the industry.