Company Filing History:
2 out of 1,297 
1 out of 48 
1 out of 5 Years Active: 1978-1982
Title: Innovations of Tokio Nishikawa
Introduction
Tokio Nishikawa is a notable inventor based in Hikone, Japan. He has made significant contributions to the field of membrane filtration technology. With a total of 3 patents, his work focuses on the development of hollow fiber membranes that enhance filtration processes.
Latest Patents
Nishikawa's latest patents include innovations in membrane filtration type hollow fibers. The first patent describes a hollow fiber composed of a single material phase, specifically a chain high polymer. This fiber is capable of forming through the spinning of the high polymer. The cylindrical wall of the hollow fiber features a three-dimensional net-like structure with fine filtering passages ranging from 0.05 to 1 micron, ideally between 0.1 to 1 micron. This design ensures an effective filtering zone, with a pore rate of at least 55%. The active points of the filtering passages are randomly distributed throughout the active zone, allowing for nearly uniform sizes of the passages for solids in the filtering liquor.
The second patent also pertains to membrane filtration type hollow fibers, utilizing materials such as cellulose acetate. Similar to the first, it features a three-dimensional net-like structure that occupies the entire mass of the tubular wall. This design provides an effective filtering zone, with a pore rate of at least 55% and uniformly distributed active points for governing the minimum passable sizes of the passages.
Career Highlights
Throughout his career, Nishikawa has worked with prominent companies such as Asahi Kasei Kogyo and Toyo Jozo Company, Ltd. His experience in these organizations has contributed to his expertise in membrane filtration technologies.
Collaborations
Nishikawa has collaborated with notable individuals in his field, including Yasuo Yokokawa and Shigeyasu Ohashi. These collaborations have likely enriched his research and development efforts.
Conclusion
Tokio Nishikawa's innovations in membrane filtration technology have made a significant impact in the industry. His patents reflect a commitment to enhancing filtration processes through advanced materials and designs.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.