Shin-ichiro Yokoyama

Title: Innovations of Shin-ichiro Yokoyama

Introduction

Shin-ichiro Yokoyama is a notable inventor based in Yasugi, Japan. He has made significant contributions to the field of magnetic materials, holding a total of 4 patents. His work focuses on developing advanced materials that enhance magnetic properties for various applications.

Latest Patents

Yokoyama's latest patents include a semi-hard magnetic material and a theft-prevention magnetic sensor utilizing this material. The semi-hard magnetic material is characterized by specific compositions, including 5.0% to 13.0% Ni, 0.5% to 4.0% Mn, and other elements, resulting in a coercivity of 1000 to 2400 A/m and a residual magnetic flux density of 1.3 T or more. Additionally, he has developed a method for manufacturing this material, which involves a thin plate subjected to cold rolling and an aging treatment at temperatures between 520°C and 680°C. Another patent focuses on a magnetic shielding material that exhibits excellent properties at low magnetic fields, comprising components such as 70.0% to 85.0% Ni and a relative magnetic permeability of 40,000 or more.

Career Highlights

Throughout his career, Shin-ichiro Yokoyama has worked with prominent companies, including Hitachi Metals, Ltd. His expertise in magnetic materials has positioned him as a key figure in the industry, contributing to advancements in technology and material science.

Collaborations

Yokoyama has collaborated with notable colleagues, including Tsutomu Inui and Hideya Yamada. Their combined efforts have led to innovative solutions in the field of magnetic materials.

Conclusion

Shin-ichiro Yokoyama's contributions to the development of magnetic materials and his innovative patents highlight his significant role in advancing technology. His work continues to influence various applications in the industry.