Yasutake Hirota

Title: Yasutake Hirota: Innovator in Ferrofluid Technology

Introduction

Yasutake Hirota is a notable inventor based in Manchester, NH (US). He has made significant contributions to the field of magnetic fluids, particularly through his innovative patents. With a total of 3 patents, Hirota has established himself as a key figure in the development of ferrofluid technology.

Latest Patents

Hirota's latest patents include a "Ferrofluid composition and process," which relates to a composition and process for producing a chemically stable magnetic fluid. This invention comprises a plurality of magnetic particles covered first with a small molecular weight surface modifier, which acts as a surfactant-accepting layer, and then with at least one surfactant. The coated magnetic particles are suspended in a carrier liquid, which can be silicone oil-based, hydrocarbon oil-based, or ester oil-based. Another significant patent is the "Composition and method of making a ferrofluid having an improved chemical stability." This invention involves finely divided magnetic particles covered with at least one surfactant, utilizing a fluorocarbon-silane surface modifier to enhance the acid resistance of the colloid.

Career Highlights

Throughout his career, Hirota has worked with various companies, including Ferrotec Corporation. His work has focused on advancing the technology and applications of ferrofluids, contributing to various industries.

Collaborations

Hirota has collaborated with notable individuals in his field, including Shiro Tsuda and Lucian Borduz. These collaborations have further enriched his research and development efforts.

Conclusion

Yasutake Hirota's innovative work in ferrofluid technology has led to significant advancements in the field. His patents reflect a deep understanding of magnetic fluids and their applications, marking him as a prominent inventor in this area.