Patents by Inventor Michikazu Sano

Michikazu Sano 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).

  • Process for production of tertiary butyl alcohol
    Patent number: 4307257
    Abstract: An aqueous high concentration solution of tert-butyl alcohol can be produced with high conversion and high selectivity by using a material composition having special proportions of tert-butyl alcohol, water and isobutylene or an isobutylene-containing hydrocarbon mixture and reacting isobutylene with water in the presence of a cation exchange resin having sulfonic acid groups preferably in multi-stage reactors and separating inert hydrocarbons and unreacted isobutylene from the reaction solution in a distillation column.
    Type: Grant
    Filed: June 23, 1980
    Date of Patent: December 22, 1981
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Masao Sada, Michio Kato, Yoshihide Mori, Michikazu Sano