Company Filing History:
Years Active: 2003-2013
Title: **Norifumi Hirota: Innovator in Acrylonitrile Copolymers and Plastic Lens Technology**
Introduction
Norifumi Hirota, an accomplished inventor based in Otake, Japan, has made significant contributions to the fields of polymer chemistry and optical technology. With a total of four patents, Hirota specializes in developing advanced materials and methods that enhance the performance of various applications.
Latest Patents
Hirota’s most recent patents focus on acrylonitrile copolymers, highlighting their exceptional thermal stability and utility in producing polyacrylonitrile precursor fiber for carbon fiber. One patent details an acrylonitrile copolymer solution that dissolves in an amide solvent, paving the way for the creation of dense fibers suitable for carbon fiber production. Specifically, the copolymer includes a sulfonate group derived from a polymerization initiator, adhering to strict formulation parameters. Another innovative patent describes a plastic rod lens and associated components, characterized by a cylindrical structure where the refractive index decreases from the center to the outer edge, ensuring precise optical performance.
Career Highlights
Hirota is currently employed at Mitsubishi Rayon Company, Limited, where he continues to push the boundaries of material science through his research. His patents not only reflect his ingenuity but also his commitment to improving industrial applications through advanced polymer technologies. The products of his innovations have broad implications in industries such as textiles and optics.
Collaborations
Throughout his career, Hirota has collaborated with notable colleagues, including Yoshihiro Uozu and Hiroshi Abe. Their collective expertise has played a vital role in advancing research initiatives and achieving groundbreaking results in the realm of polymers and optical devices.
Conclusion
Norifumi Hirota stands out as a remarkable inventor whose work in acrylonitrile copolymers and plastic lens technology exemplifies the spirit of innovation. With ongoing research and collaboration, Hirota is poised to continue making impactful contributions to his field.