Location History:
- Tokyo, JP (1982 - 1983)
- Yokkaichi, JP (1984)
Company Filing History:
Years Active: 1982-1984
Title: The Innovations of Kozo Ishiyama
Introduction
Kozo Ishiyama is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of polymer chemistry, particularly in the development of polyphenylene ether resin compositions. With a total of three patents to his name, Ishiyama's work has had a notable impact on the industry.
Latest Patents
Ishiyama's latest patents include a polyphenylene ether resin composition that boasts improved heat stability. This innovative composition comprises a polyphenylene ether resin matrix, which is enhanced by the inclusion of a diphosphonite. The formula for this diphosphonite includes R1 groups that can be either identical or different, representing linear or branched alkyl groups with 1 to 10 carbon atoms. Another significant patent involves a polyphenylene ether resin composition that also emphasizes improved heat stability. This composition features a phosphonic acid or its derivative, where R1 can represent an unsubstituted or substituted phenyl or naphthyl group, or a linear or branched alkyl group with 1 to 18 carbon atoms.
Career Highlights
Kozo Ishiyama is currently associated with Mitsubishi Gas Chemical Company, Inc., where he continues to innovate and develop new materials. His work has been instrumental in advancing the applications of polyphenylene ether resins in various industries.
Collaborations
Throughout his career, Ishiyama has collaborated with notable colleagues, including Akitoshi Sugio and Masanobu Masu. These collaborations have further enriched his research and development efforts.
Conclusion
Kozo Ishiyama's contributions to the field of polymer chemistry, particularly through his patents on polyphenylene ether resin compositions, highlight his innovative spirit and dedication to advancing material science. His work continues to influence the industry and pave the way for future innovations.