Company Filing History:
2 out of 7,954 
1 out of 14 Years Active: 1990-1993
Title: Tsutomu Choh: Innovator in Soft Magnetic Alloys
Introduction
Tsutomu Choh is a notable inventor based in Yachiyo, Japan. He has made significant contributions to the field of soft magnetic alloys, holding a total of 2 patents. His work focuses on the development of materials that enhance magnetic properties for various applications.
Latest Patents
Choh's latest patents include innovations in soft magnetic alloys and methods for creating magnetic cores and shields. One of his patents describes a soft magnetic alloy with a specific composition that includes a powder made from magnetically soft amorphous alloy flakes. This powder has an average thickness of 0.01-1 µm and an aspect ratio ranging from 10 to 10,000. The alloy is primarily an Fe-B-Si ternary alloy, where iron can be partially substituted with other metals. This innovative approach allows for the fabrication of effective magnetic shields.
Career Highlights
Throughout his career, Tsutomu Choh has worked with prominent companies such as TDK Corporation and Tokyo Magnetic Printing Co., Ltd. His experience in these organizations has contributed to his expertise in magnetic materials and their applications.
Collaborations
Choh has collaborated with notable colleagues, including Masao Shigeta and Ippo Hirai. These partnerships have likely enriched his research and development efforts in the field of soft magnetic alloys.
Conclusion
Tsutomu Choh's contributions to the field of soft magnetic alloys demonstrate his innovative spirit and dedication to advancing technology. His patents reflect a deep understanding of material science and its practical applications in magnetic technology.