Introduction: Kiyokazu Asai, a distinguished inventor based in Nagoya, Japan, has made significant contributions to the fields of mechanical engineering and automotive technology. With a remarkable portfolio of 11 patents, Asai's innovations focus primarily on ultrasonic motors and methods for detecting engine conditions.

Latest Patents: Among Kiyokazu Asai's latest patents is the development of an advanced ultrasonic motor. This groundbreaking motor operates using a vibration mode of progressive wave, which incorporates a large vibrational amplitude of an elastic member to achieve high torque. The design features at least one vibrator equipped with a disk-shaped elastic member, piezoelectric ceramics affixed to both surfaces, and multiple projections located on either side of the driving force transmitting portion. Furthermore, the device includes at least one rotor in press contact with this driving force, enhancing its efficiency and performance.

Another notable invention is his method and device for detecting knocking in internal combustion engines. This innovative system not only identifies knocking but also monitors abnormal conditions of the cooling liquid in liquid-cooled engines. The detection mechanism is adept at sensing the vibration or pressure fluctuations caused by both the knocking phenomenon and the operation of the coolant pump, thereby providing comprehensive engine diagnostics.

Career Highlights: Kiyokazu Asai is affiliated with the renowned Kabushiki Kaisha Toyota Chuo Kenkyusho, a subsidiary of Toyota that focuses on advanced research and development. His tenure at this forward-thinking company has allowed him to contribute to groundbreaking research that impacts the automotive industry significantly.

Collaborations: Throughout his career, Asai has collaborated with esteemed colleagues, including Akihiro Takeuchi and Yujiro Oshima. Together, they have pooled their expertise to advance their research and drive innovation in their respective fields.

Conclusion: Kiyokazu Asai stands out as a prominent inventor whose work in ultrasonic motors and engine diagnostics holds pivotal importance for the automotive sector. His patents showcase a blend of creativity and engineering expertise, reflecting his commitment to enhancing technology and improving efficiencies. Asai's contributions not only elevate his company's status but also have broader implications for the future of automotive engineering.

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