Patents by Inventor Koyoshi Takai

Koyoshi Takai 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 preparation of shellfish extract concentrate, and shellfish extract concentrate
    Patent number: 4968523
    Abstract: A shellfish extract concentrate is prepared by subjecting an extract of a shellfish (exclusive of oyster) having a solid concentration not higher than 30% by weight to an adsorption purification treatment with an adsorbent composed mainly of a water-insoluble inorganic magnesium compound, which has a specific surface area of at least 50 m.sup.2 /g, and concentrating the refined liquid in a substantially non-oxidizing atmosphere. In this shellfish extract concentrate, black and blackish brown coloring components are not contained, and flavor components and nutrients are not substantially lost. Accordingly, this shellfish extract concentrate is excellent in taste, flavor and hue.
    Type: Grant
    Filed: July 22, 1988
    Date of Patent: November 6, 1990
    Assignee: Mizusawa Industrial Chemicals, Ltd.
    Inventors: Koichi Usui, Masahide Ogawa, Koyoshi Takai, Teiji Sato, Masanori Tanaka, Izumi Serizawa