Location History:
- Toyohashi, JP (1987 - 2005)
- Aichi, JP (2005)
Company Filing History:
4 out of 1,357 
1 out of 5 Years Active: 1987-2005
Title: Innovations by Yoshishige Shimizu
Introduction
Yoshishige Shimizu is a notable inventor based in Aichi, Japan. He has made significant contributions to the field of materials science, particularly in the development of flame-retardant polypropylene products. With a total of 4 patents to his name, Shimizu's work focuses on enhancing the safety and performance of polypropylene fibers and films.
Latest Patents
Shimizu's latest patents include a flame-retarding polypropylene fiber and a flame-retarding polypropylene film. These innovations are designed to provide both excellent flame retardancy and superior strength, while also ensuring that no toxic gases are generated during use. The production method involves mixing 0.5 to 3.0% by weight of a NOR type hindered amine-based stabilizer and 0.5 to 3.0% by weight of a phosphoric ester-based flame retardant with a polypropylene resin. The mixture is then spun to form an unstretched yarn, which is subsequently stretched and thermally set to achieve the desired properties.
Career Highlights
Throughout his career, Yoshishige Shimizu has worked with prominent companies such as Mitsubishi Rayon Company, Limited and Chemitech, Inc. His experience in these organizations has allowed him to refine his expertise in polymer science and contribute to innovative solutions in the industry.
Collaborations
Shimizu has collaborated with notable colleagues, including Hideo Sakakura and Hiroshi Yamamoto. These partnerships have facilitated the exchange of ideas and advancements in the field of flame-retardant materials.
Conclusion
Yoshishige Shimizu's contributions to the development of flame-retardant polypropylene products highlight his innovative spirit and dedication to safety in materials science. His patents reflect a commitment to creating effective solutions that meet industry needs.