Location History:
- Hofu, JA (1978)
- Hofu, JP (1979 - 2004)
Company Filing History:
4 out of 305 
3 out of 832,812 Years Active: 1978-2004
Title: Innovations of Yukio Yamakawa
Introduction
Yukio Yamakawa is a notable inventor based in Hofu, Japan. He has made significant contributions to the field of materials science, particularly in the development of advanced nonwoven fabrics. With a total of 7 patents to his name, Yamakawa's work showcases his innovative approach to solving complex engineering challenges.
Latest Patents
Yamakawa's latest patents include a nonwoven thermoplastic elastomer fabric roll and a method and apparatus for making the same. This invention provides a thermoplastic elastomer nonwoven fabric roll that exhibits minimal longitudinal wrinkles and minimal delayed restoration when unrolled. The method involves piling melt-spun thermoplastic elastomer filaments on a belt conveyor to form a sheet of nonwoven fabric, which is then guided to a rotating roller for peeling. This process allows for the nonwoven fabric to be unrolled with little stretching, applying minimal tension during processing. Another significant patent is for a polyurethane elastic fiber nonwoven fabric and its production, which features high elasticity and tear strength. This nonwoven fabric can be prepared using a thermoplastic polyurethane elastomer, resulting in a synthetic leather that combines excellent elasticity with durability.
Career Highlights
Throughout his career, Yukio Yamakawa has worked with prominent companies, including Kanebo, Limited. His experience in these organizations has contributed to his expertise in developing innovative materials and processes.
Collaborations
Yukio Yamakawa has collaborated with notable individuals in his field, including Yutaka Tanaka and Takeshi Nishida. These collaborations have likely enhanced his research and development efforts, leading to successful innovations.
Conclusion
Yukio Yamakawa's contributions to the field of materials science through his patents and collaborations highlight his role as a leading inventor. His innovative approaches to nonwoven fabrics continue to influence the industry and pave the way for future advancements.