This inventor holds 10 USPTO granted patents and 1 published patent application. Top assignees: Oki Electric Industry Co., Ltd., 3M Innovative Properties Company, Tokyo Ohka Kogyo Co., Ltd.. Active years: 1994-2026.
Company Filing History:
3 out of 4,980 
2 out of 22,366 
2 out of 1,236 Years Active: 1994-2026
Title: Yukihisa Okada: Innovator in Metal Ion Removal Technology
Introduction
Yukihisa Okada is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of filtration technology, particularly in the efficient removal of metal ions from liquids. With a total of 10 patents to his name, Okada's work has the potential to impact various industries that require high-purity water.
Latest Patents
Okada's latest patents focus on innovative filtration methods and devices. One of his notable inventions is a filter that includes a porous molded article, which is a sintered material made from a mixture of activated carbon powder and thermoplastic resin powder. This filter is designed to treat water with a specific electrical resistance value of 18 MΩ·cm or greater. When water passes through the filter at a space velocity of 1200 hr, the resulting water maintains an electrical resistance value of 13 MΩ·cm or greater. This invention aims to efficiently remove metal ions from treatment liquids, providing solutions with extremely low metal ion content.
Another significant patent involves a filter that consists of a porous molding, which is a sintered product of mixed powder containing dry gel powder, including an ion exchange resin and thermoplastic resin powder. Similar to his previous invention, this filter allows water with an electric resistivity value of 18 MΩ·cm or more to pass through at a space velocity of 1200 hr−1, resulting in water with an electric resistivity value of 15 MΩ·cm or more. This invention also focuses on efficiently removing metal ions from solutions, ensuring the acquisition of low metal ion content solutions.
Career Highlights
Throughout his career, Yukihisa Okada has worked with notable companies, including Oki Electric Industry Co., Ltd. His experience in the industry has allowed him to develop innovative solutions that address critical challenges in water purification and filtration.
Collaborations
Okada has collaborated with esteemed colleagues, including Yoshihiro Sawada and Akira Hashimoto. These partnerships have contributed to the advancement of his research and the successful development of his patented technologies.
Conclusion
Yukihisa Okada's contributions to the field of filtration technology, particularly in metal ion removal, highlight his innovative spirit and dedication to improving water quality. His patents represent significant advancements that can benefit various industries