Kazuhiro Otsu

Title: Kazuhiro Otsu: Innovator in Semiconductor Technology

Introduction

Kazuhiro Otsu is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 6 patents. His work focuses on enhancing the functionality and safety of semiconductor elements, particularly in power applications.

Latest Patents

One of Otsu's latest patents is a short-circuit protection circuit for a self-arc-extinguishing type semiconductor element. This innovative circuit includes a first protection circuit designed to reduce voltage between a control electrode and a main electrode when overcurrent is detected. Additionally, a second protection circuit is included to monitor current flow and adjust the drive voltage accordingly, ensuring the semiconductor element is turned off when necessary. Another notable patent is a gate driving circuit for insulated gate-type power semiconductor elements. This circuit utilizes both N-channel and P-channel MOSFETs to control the operation of the semiconductor element, applying appropriate voltages to ensure efficient performance.

Career Highlights

Throughout his career, Kazuhiro Otsu has worked with leading companies in the industry, including Mitsubishi Gas Chemical Company, Inc. and Mitsubishi Electric Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas in semiconductor technology.

Collaborations

Otsu has collaborated with notable colleagues such as Kazuyuki Ohya and Hideki Kobayashi. Their combined expertise has contributed to advancements in the field and the successful development of various technologies.

Conclusion

Kazuhiro Otsu's contributions to semiconductor technology through his patents and collaborations highlight his role as an influential inventor. His work continues to impact the industry, paving the way for future innovations in power semiconductor applications.