Company Filing History:
1 out of 5 
1 out of 10 
1 out of 1 Years Active: 1999
Title: Siro Nakamura: Innovator in Electret Fiber Technology
Introduction
Siro Nakamura is a notable inventor based in Nagoya, Japan. He is recognized for his innovative contributions to the field of materials science, particularly in the development of specialized fibers.
Latest Patents
Nakamura holds a patent for a unique product titled "Polyvinyl alcohol fiber containing tourmaline particles." This electret fiber is composed of insolubilized polyvinyl alcohol that contains 0.05 to 0.5% by weight of tourmaline particles, which have a particle diameter not exceeding 0.3 µm. The electret fiber is designed to invigorate the human body by promoting blood circulation and is also effective in reducing the BOD value of sewage water by activating bacteria in activated sludge. The preparation of this fiber involves spinning a solution of polyvinyl alcohol with tourmaline particles, followed by an insolubilization treatment through heat treatment, formalization with formaldehyde, or acetalization with glutaraldehyde.
Career Highlights
Throughout his career, Siro Nakamura has worked with various companies, including Life Energy Industry Inc. and Nitivy Co., Ltd. His work has significantly impacted the development of advanced materials that serve both health and environmental purposes.
Collaborations
Nakamura has collaborated with notable individuals in his field, including Toshio Sugihara and Marcos Masaki Komiya. These partnerships have contributed to the advancement of his innovative projects.
Conclusion
Siro Nakamura's contributions to the field of electret fiber technology highlight his role as a pioneering inventor. His work not only enhances human health but also addresses environmental challenges.