Yasuhiko Fujiwara

Title: Yasuhiko Fujiwara: Innovator in Vibration Damping Technology

Introduction

Yasuhiko Fujiwara is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of vibration damping technology, holding a total of 7 patents. His innovative work has been instrumental in enhancing the performance and safety of various applications, particularly in the automotive industry.

Latest Patents

Among his latest patents is the "Electronically Controllable Vibration Damping Device." This device utilizes first and second accelerometers to determine the relative displacement between a body and a base. The output from one of the accelerometers is monitored to ascertain the frequency of the vibration. The data is processed to determine the timing when the phases of a vertical spring input and an expansion spring input are reversed. This information is crucial for applying voltage to electrodes in an orifice, which increases the viscosity of the rheopetic fluid, thereby enhancing flow resistance. Another notable patent is the "Electronically Controllable Vibration Damper for Use with Automotive." This damper includes electrode bodies that are connected to a vibrating body and a base, immersed in a rheopetic fluid. The relative velocity and displacement are measured to control the voltage applied across the electrodes, optimizing the damping force based on the phase relationship of the parameters.

Career Highlights

Yasuhiko Fujiwara has worked with notable companies such as Nissan Motor Company Limited and Hitachi, Ltd. His experience in these organizations has allowed him to apply his innovative ideas in practical settings, contributing to advancements in automotive technology.

Collaborations

Throughout his career, Fujiwara has collaborated with esteemed colleagues, including Toshiro Abe and Kazuhiro Doi. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies in vibration damping.

Conclusion

Yasuhiko Fujiwara's contributions to vibration damping technology have made a lasting impact in the automotive industry. His innovative patents and collaborations highlight his dedication to enhancing performance and safety in various applications.