Kazutoshi Otsuka

Title: Kazutoshi Otsuka: Innovator in Automotive Technology

Introduction

Kazutoshi Otsuka is a prominent inventor based in Hiroshima, Japan. He has made significant contributions to automotive technology, particularly in the field of exhaust gas recirculation systems and fuel control systems for internal combustion engines. With a total of 4 patents to his name, Otsuka's work has had a lasting impact on the efficiency and performance of automobile engines.

Latest Patents

Otsuka's latest patents include an innovative exhaust gas recirculation system that features electrical control means. This system includes an intake pressure-operated control valve that regulates the amount of exhaust gas recirculated to the intake system. Additionally, it incorporates a suction pressure adjusting valve of a duty factor solenoid type, which determines the suction pressure applied to the control valve. A control circuit is integrated to apply an operating signal to the pressure adjusting valve, which is associated with a memory device containing various duty factors based on engine speed and intake pressure. This memory device also accounts for compensation factors under different engine temperatures, ensuring optimal performance.

Another notable patent is his fuel control system for automobile engines. This system utilizes a composition sensor to detect the concentration of oxygen in the exhaust gases. It includes a mixing ratio control with a compensator to adjust the air-fuel mixture supplied to the engine. The system also features an electromagnetically operated valve that selectively establishes communication between the exhaust passage and the fuel intake passage, enhancing the engine's efficiency and performance.

Career Highlights

Kazutoshi Otsuka is currently employed at Toyo Kogyo Co., Ltd., a company known for its advancements in automotive technology. His work at this organization has allowed him to develop and refine his innovative ideas, contributing to the company's reputation as a leader in the industry.

Collaborations

Otsuka has collaborated with Hideki Tanaka, a fellow innovator, to further enhance the development of automotive technologies. Their partnership has led to the creation of advanced systems that improve engine performance and reduce emissions.

Conclusion

Kazutoshi Otsuka's contributions to automotive technology through his patents and collaborations have significantly advanced the field. His innovative solutions continue to influence the design and efficiency of modern automobile engines.