Location History:
- Koshigaya, JP (1985 - 1996)
- Nihonbashi, JP (1995 - 1997)
- Tokyo, JP (1993 - 1999)
Company Filing History:
16 out of 265 
15 out of 28 
1 out of 2 Years Active: 1985-1999
Title: **Innovative Contributions of Katsumi Kuriyama**
Introduction
Katsumi Kuriyama, an accomplished inventor based in Koshigaya, Japan, has made significant contributions to the field of materials science. With an impressive portfolio of 16 patents, his work primarily focuses on the development of advanced copolymer materials that enhance various industrial applications.
Latest Patents
Among his latest innovations is the PVA-base thermoplastic copolymer and its production process. This copolymer is synthesized by subjecting a lactone with a ring of 3 to 10 carbon atoms to ring-opening polymerization in the presence of polyvinyl alcohol (PVA). The resulting copolymer includes a PVA chain and an aliphatic polyester, which is grafted onto the PVA chain as a ring-opened polymer. This copolymer showcases a PVA content ranging from 2 to 98 wt. %, a polyester content from 98 to 2 wt. %, and a number average molecular weight between 10,000 to 500,000. Kuriyama's work on this material highlights its potential uses in various sectors due to its favorable properties.
Career Highlights
Katsumi Kuriyama has held pivotal roles in prominent companies such as Dainichiseika Color & Chemicals Manufacturing Co., Ltd. and Ukima Colour & Chemicals Manufacturing Co., Ltd. His experience in these organizations has allowed him to hone his skills in research and innovation, leading to his substantial contributions in the field of polymer science.
Collaborations
Throughout his career, Kuriyama has collaborated with talented individuals such as Kazuyuki Hanada and Iwao Misaizu. These partnerships have fostered a creative environment, driving forward the boundaries of innovation in their respective fields.
Conclusion
Katsumi Kuriyama's extensive patent portfolio and innovative work with PVA-base thermoplastic copolymers exemplify his dedication to enhancing materials technology. His contributions continue to pave the way for advancements in various applications, underscoring the vital role of inventors in shaping the future of industrial materials.