Location History:
- Ichihara, JP (1990)
- Chiba, JP (1993)
- Hirakata, JP (1986 - 1995)
Company Filing History:
8 out of 1,432 
1 out of 6 
1 out of 5 Years Active: 1986-1995
Title: **Yasushi Shimomura: Innovator in Medical and Material Technologies**
Introduction
Yasushi Shimomura, an accomplished inventor based in Hirakata, Japan, has made significant contributions to the fields of medical devices and material science. With a portfolio of 8 patents to his name, his innovations have provided solutions that enhance both healthcare processes and the functionality of materials.
Latest Patents
Among his recent patents is a groundbreaking **Process of Producing Porous Polypropylene Hollow Fiber and Film**. This innovative process involves forming a multitude of micropores within the walls of a polypropylene hollow fiber or film, utilizing a drawing process conducted at temperatures ranging from 110°C to 155°C and at a drawing rate of less than 10% per minute.
Another notable invention is the **Hollow Fiber Membrane Type Artificial Lung**, which integrates a design featuring an inner cylinder and an outer cylinder, complemented by a hollow fiber bundle comprised of porous hollow fiber membranes. This artificial lung design is highly effective thanks to its reduced pressure loss and the prevention of blood channeling, resulting in exceptional gas-exchange efficiency.
Career Highlights
Yasushi Shimomura has worked with prominent companies in his field, including Ube Industries, Inc. and Iwatani & Co., Ltd. His work at these organizations has enabled him to fine-tune his innovations, contributing to advancements in both the medical and materials sectors.
Collaborations
Throughout his career, Yasushi has collaborated with notable colleagues such as Eiichi Kamei and Mitsuo Yamanaka. These collaborations have fostered a creative environment for innovation, allowing them to leverage their combined expertise for the advancement of technology.
Conclusion
Yasushi Shimomura represents a vibrant spirit of innovation, with a strong focus on tackling complex challenges in materials and medical technologies. His patents not only demonstrate his ingenuity but also reflect his dedication to improving quality of life through inventive solutions. As he continues to develop his groundbreaking projects, the impact of his work is sure to resonate within and beyond his fields of expertise.