Patents by Inventor Kyo Okada

Kyo Okada 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).

  • Production of o-hydroxybenzyl alcohols
    Patent number: 4025553
    Abstract: A novel process for producing o-hydroxybenzyl alcohols useful as raw materials or intermediates in chemical or pharmaceutical industries, which comprises reacting phenols or naphthols with aromatic boronic acids and aldehydes in the presence of organic carboxylic acids, followed by degradation of the cyclic ester intermediates.
    Type: Grant
    Filed: September 23, 1975
    Date of Patent: May 24, 1977
    Assignee: Shionogi & Co., Ltd.
    Inventors: Wataru Nagata, Kyo Okada, Hiroshi Itazaki, Tsutomu Aoki