Company Filing History:
Years Active: 1982-1985
Title: The Innovations of Tamio Ishitobi
Introduction
Tamio Ishitobi is a notable inventor based in Nobeoka, Japan. He has made significant contributions to the field of materials science, particularly in the development of advanced fibers. With a total of 2 patents, his work has garnered attention for its innovative approaches and practical applications.
Latest Patents
Ishitobi's latest patents focus on the creation of Poly(P-phenyleneterephthalamide) fibers. These fibers are characterized by their exceptionally high tensile strength. The fibers consist primarily of poly(p-phenyleneterephthalamide) with an inherent viscosity of at least 5 dl/g, as determined in sulfuric acid at a concentration of 98 wt. % and a polymer concentration of 0.5 g/dl. The fibers are composed of single filaments ranging from 0.5 to 3 denier, with a tensile strength of at least 35 g/denier. Additionally, the macrovoid number of the fibers is limited to no more than 10 per 100 mm, and the asymmetry is not more than 0.2. Another patent involves a shaping composite dope composition that includes a cellulose derivative and an acrylonitrile polymer. This composite fiber exhibits excellent thermal dimensional stability and mechanical properties, making it a significant advancement in fiber technology.
Career Highlights
Tamio Ishitobi is currently employed at Asahi Kasei Kogyo Kabushiki Kaisha, a leading company in the chemical and materials industry. His work at this organization has allowed him to focus on innovative fiber technologies that have practical applications in various industries.
Collaborations
Ishitobi has collaborated with notable coworkers, including Eiji Satoh and Tetsuo Matsushita. Their combined expertise has contributed to the successful development of advanced materials and technologies.
Conclusion
Tamio Ishitobi's contributions to the field of materials science, particularly through his patents on advanced fibers, highlight his innovative spirit and dedication to improving material properties. His work continues to influence the industry and pave the way for future advancements.