Location History:
- Nagoya, JP (1987)
- Tokyo, JP (1988 - 1992)
- Kawasaki, JP (1992)
- Kawsaki, JP (1996)
- Hiroshima, JP (2002)
Company Filing History:
Years Active: 1987-2002
Title: Innovations of Yoshitaka Kageyama
Introduction
Yoshitaka Kageyama is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of materials science, particularly in the development of advanced fibers and optical compounds. With a total of nine patents to his name, Kageyama's work has had a substantial impact on various industries.
Latest Patents
One of Kageyama's latest patents is for an acrylonitrile-based precursor fiber for carbon fiber and the method for its production. This invention involves a copolymer containing 96.0 to 98.5% by weight of acrylonitrile units. The precursor fiber is characterized by a tensile strength of not less than 7.0 cN/dtex and an elastic modulus in tension of not less than 130 cN/dtex. It also features an iodine adsorption of not greater than 0.5% by weight and a degree of crystal orientation of not less than 90%. This high-performance fiber can be used to create high-quality carbon fiber efficiently and cost-effectively. Another notable patent is for an optically active compound having a delta-valerolactone ring. This compound is chemically stable, colorless, and provides a liquid crystal composition with large spontaneous polarization when incorporated.
Career Highlights
Kageyama is currently associated with Mitsubishi Rayon Company, Limited, where he continues to innovate and develop new materials. His work has been instrumental in advancing the capabilities of carbon fibers and liquid crystal technologies.
Collaborations
Kageyama has collaborated with notable coworkers such as Jun Nakauchi and Keiichi Sakashita. Their combined expertise has contributed to the successful development of innovative materials and technologies.
Conclusion
Yoshitaka Kageyama's contributions to the field of materials science through his patents and collaborations highlight his role as a leading inventor. His work continues to influence advancements in carbon fiber and optical compounds, showcasing the importance of innovation in technology.