Company Filing History:
Years Active: 1984-1987
Title: Hisato Tsuruta: Innovator in Torque Motors and Fuel Injection Technologies
Introduction
Hisato Tsuruta is a notable inventor based in Hitachi, Japan, who has made significant contributions to the fields of torque motors and fuel injection systems for internal combustion engines. With a portfolio of four patents, Tsuruta's innovations demonstrate his commitment to enhancing engineering efficiency and performance.
Latest Patents
Tsuruta's latest inventions include a torque motor featuring a coil with a finite turning range. This innovative torque motor comprises a housing, a shaft member supported by bearings, a stationary core, and a coil that rotates within a limited range respect to the stationary core, aided by fixed magnets that create a rotational force. His design includes unique features such as oppositely disposed free ends of the coil that project beyond the stationary core, ensuring that they do not contact it, while maintaining a stable support through plate members.
Another significant patent from Tsuruta is a fuel injection apparatus aimed at improving internal combustion engine performance. This apparatus integrates a hot wire sensor within an air bypass and utilizes an electromagnetic device to control the airflow and fuel injection accurately. By adjusting the air-scaling and fuel-scaling valves based on sensor feedback, Tsuruta's innovation effectively enhances engine efficiency, particularly during idling operations by maintaining optimal sensor output.
Career Highlights
Tsuruta is employed by Hitachi, Ltd., where he has harnessed his expertise to drive forward developments in motor and engine technologies. His work showcases a blend of practical engineering with innovative design, leading to advancements that enhance operational efficiency.
Collaborations
Throughout his career, Tsuruta has collaborated with esteemed coworkers Mineo Kashiwaya and Kinsaku Yamada. Together, they have contributed to various projects that reflect their shared dedication to innovation in engineering and mechanical design.
Conclusion
Hisato Tsuruta stands as a prominent figure in the field of engineering innovation, with patents that highlight his ingenuity and forward-thinking approach. His contributions to torque motors and fuel injection technologies continue to inspire advancements within the industry, showcasing the impactful role inventors play in shaping the future of technology.