Location History:
- Miyazaki, JP (1985)
- Oita, JP (1987)
Company Filing History:
2 out of 42 
1 out of 1,297 
Years Active: 1985-1987
Title: Yotsuo Ono: Innovator in Hollow Fiber Membrane Technology
Introduction
Yotsuo Ono is a notable inventor based in Miyazaki, Japan. He has made significant contributions to the field of hollow fiber membrane technology, holding a total of 2 patents. His work focuses on advancements that enhance dialysis performance and ultrafiltration rates.
Latest Patents
Ono's latest patents include a hollow fiber membrane formed from a block copolymer of aromatic. This innovative membrane is designed for the dialysis of blood and is created by melt-spinning a block copolymer with a reduced viscosity of 1.5 to 4.0. The composition consists of 30 to 60% by weight of an aromatic polyester with a water absorption of up to 1% and 40 to 70% by weight of polyoxyethylene or its derivative, which has a number average molecular weight ranging from 3000 to 20000. Another significant patent involves a hollow fiber of cuprammonium regenerated cellulose, which features an axially disposed cylindrical bore filled with gas. This design improves dialysis performance and ultrafiltration rates compared to conventional hollow fibers. The production process includes extruding a spinning dope through an annular orifice while injecting gas into the bore, followed by allowing the fiber to free fall into a coagulation bath.
Career Highlights
Throughout his career, Yotsuo Ono has worked with prominent companies such as Asahi Medical Co., Ltd. and Asahi Kasei Kogyo Kabushiki Kaisha. His experience in these organizations has contributed to his expertise in developing advanced membrane technologies.
Collaborations
Ono has collaborated with notable coworkers, including Masanobu Yokogi and Yoshifumi Sugimoto. Their combined efforts have furthered research and development in the field of hollow fiber membranes.
Conclusion
Yotsuo Ono's innovative work in hollow fiber membrane technology has made a significant impact on the field of dialysis and ultrafiltration. His patents reflect a commitment to improving medical technologies that benefit patients worldwide.