Patents by Inventor Kathuhiko Sakura

Kathuhiko Sakura has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of making ethylbiphenyls
    Patent number: 4943553
    Abstract: This invention relates to a method of making ethylbiphenyls by the reaction of biphenyl with polyethylbenzenes or with ethylene and polyethylbenzenes in the presence of a solid acid catalyst and offers advantages of industrial significance such as absence of acidic waste water, no need of costly materials for equipment, catalyst reuse, and adaptability to a fixed-bed flow reaction system suitable for large-scale production.
    Type: Grant
    Filed: November 2, 1989
    Date of Patent: July 24, 1990
    Assignee: Nippon Steel Chemical Co., Ltd.
    Inventors: Kathuhiko Sakura, Genki Takeuchi, Naoko Takeshita