Location History:
- Kashima, JA (1976)
- Ibaragi, JP (1980)
- Kurashiki, JP (1981 - 1994)
- Osaka, JP (1995)
Company Filing History:
Years Active: 1976-1995
Title: Innovations and Contributions of Junnosuke Yamauchi
Introduction
Junnosuke Yamauchi is a prominent inventor based in Kurashiki, Japan, notable for his substantial contributions to the field of polymer chemistry. With a remarkable portfolio of 22 patents, his work has significantly advanced the production and application of various polyvinyl esters.
Latest Patents
Yamauchi's latest innovations include a patented process for producing polyvinyl ester, which exhibits a high degree of polymerization and intrinsic viscosity ranging from 15 dl g.sup.-1 to 3.2 dl g.sup.-1. This innovative process employs emulsion polymerization techniques using nonionic and anionic emulsifiers, combined with a redox initiator, at controlled temperatures between -60°C to 15°C. Another noteworthy patent revolves around the development of multilayered containers, which utilize a specially formulated saponified ethylene-vinyl acetate copolymer. These multilayered configurations demonstrate excellent flow characteristics and stability during extrusion, making them suitable for packaging liquid and paste articles.
Career Highlights
Throughout his career, Junnosuke Yamauchi has contributed his expertise to significant companies, including Kuraray Co., Ltd. and Kurarav Co., Ltd. His innovative spirit and dedication to research have solidified his reputation as an influential figure in the creation of advanced materials.
Collaborations
Yamauchi has collaborated with esteemed coworkers such as Takuji Okaya and Toshiaki Sato, leveraging their combined knowledge and experience to foster innovation and drive forward the development of new polymer technologies. Their teamwork has been instrumental in enhancing the performance and application of polyvinyl-based materials.
Conclusion
In summary, Junnosuke Yamauchi's extensive patent portfolio and collaborative efforts reflect his dedication to advancing polymer chemistry. His innovations in the production of polyvinyl esters and multilayered container technologies underline the importance of ongoing research and development in creating sustainable and effective materials for various applications.