Company Filing History:
Years Active: 1981-1991
Title: Teruhiko Yoshioka: Innovator in Chemical Purification Processes
Introduction
Teruhiko Yoshioka is a notable inventor based in Otake, Japan. He has made significant contributions to the field of chemical engineering, particularly in the purification of various compounds. With a total of three patents to his name, Yoshioka's work has had a substantial impact on the industry.
Latest Patents
Yoshioka's latest patents include a process for purifying methyl methacrylate. This innovative method involves treating methyl methacrylate, which has a purity of 99.5% or more, with sulfonic acid group-containing compounds. The result is highly purified methyl methacrylate that exhibits an absorbance of 0.02 or less in the wavelength range of 400-500 nm, ensuring it is free of even trace amounts of furan-type compounds. Another significant patent is for the preparation of high purity isobutylene. This process yields isobutylene with a purity of up to 99.9% by treating a reaction mixture from an isobutylene-containing hydrocarbon mixture with an aqueous solution of aliphatic carboxylic acid. The method effectively inhibits the decomposition of secondary butyl alcohol and its esters, allowing for the recovery of high purity isobutylene through conventional distillation.
Career Highlights
Yoshioka is currently employed at Mitsubishi Rayon Company, Limited, where he continues to develop innovative chemical processes. His expertise in purification techniques has positioned him as a key figure in the advancement of chemical manufacturing.
Collaborations
Throughout his career, Yoshioka has collaborated with esteemed colleagues such as Minoru Ikeda and Kazutaka Inoue. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.
Conclusion
Teruhiko Yoshioka's contributions to chemical purification processes exemplify the importance of innovation in the field. His patents not only enhance the purity of essential compounds but also reflect his commitment to advancing chemical engineering practices.