Patents by Inventor Makoto Oyoshi

Makoto Oyoshi 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 manufacturing sialic acids-containing composition
    Patent number: 5270462
    Abstract: The present invention relates to a process for manufacturing a composition containing sialic acids. The process of the present invention comprises the steps of: (a) adjusting cheese whey or rennet whey to a pH of 2-5; (b) contacting the whey with a cation exchanger, to produce an exchanger-passed solution; (c) adjusting the pH of the exchanger-passed solution to a pH of 4 or lower; and then (d) concentrating and/or desalting the exchanger-passed solution. According to the present invention, it is possible to produce a composition having a high sialic acids content at a low cost and in a simple and easy manner on an industrial scale. The high sialic acids content composition thus produced can be utilized as food materials or medical materials and therefore is very useful, industrially.
    Type: Grant
    Filed: January 14, 1992
    Date of Patent: December 14, 1993
    Assignee: Snow Brand Milk Products Co., Ltd.
    Inventors: Masaharu Shimatani, Yukio Uchida, Ichirou Matsuno, Makoto Oyoshi, Yumiko Ishiyama