Yasushi Yanagisawa

Title: Yasushi Yanagisawa: Innovator in Magnetic Sensor Technology

Introduction

Yasushi Yanagisawa is a prominent inventor based in Chiba, Japan. He has made significant contributions to the field of magnetic sensor technology, holding a total of 4 patents. His innovative designs have enhanced the functionality and reliability of magnetic sensors used in various applications.

Latest Patents

Yanagisawa's latest patents include a magnetic tile sensor with a non-magnetic case having a flange. This magnetic tile sensor features a permanent magnet coated with a magnetic fluid, housed in a hollow portion of a non-magnetic case. A magnetic sensing element is arranged outside the bottom portion of the case. When the case is tilted or abruptly moved, the permanent magnet is displaced, allowing the magnetic sensing element to detect this movement. The non-magnetic case is sealed using a cold welding method, which increases workability and reliability. Additionally, a cap with a predetermined weight covers the permanent magnet, improving the response characteristics.

Another notable patent is a magnetic tilt sensor with a permanent magnet surrounding the magnetic sensing element. In this design, a first permanent magnet with magnetic fluid on its surface is housed in a non-magnetic case, while a magnetic sensing element is positioned outside the bottom of the case. A second permanent magnet surrounds the magnetic sensing element, with opposite polarity to the first. When the case tilts beyond a predetermined angle, the first permanent magnet moves instantaneously, allowing the magnetic sensing element to detect changes in magnetism and thus the tilt of the case.

Career Highlights

Yasushi Yanagisawa has been instrumental in advancing magnetic sensor technology through his work at TDK Corporation. His innovative designs have not only improved existing technologies but have also paved the way for new applications in various industries.

Collaborations

Throughout his career, Yanagisawa has collaborated with talented individuals such as Yoshimoto Odagawa and Hiraku Imaizumi. These collaborations have contributed to the development of cutting-edge technologies in the field of magnetic sensors.

Conclusion

Yasushi Yanagisawa's contributions to magnetic sensor technology exemplify his innovative spirit and dedication to advancing the field. His patents reflect a commitment to enhancing the functionality and reliability of magnetic sensors, making a lasting impact on the industry.