Patents by Inventor Katsuyuki Numaguchi

Katsuyuki Numaguchi 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 for preparing algal detritus
    Patent number: 5801050
    Abstract: Algal detritus particles are prepared by contacting algae with marine bacteria capable of attaching to and decomposing the algae under conditions sufficient to induce decomposition of the structural components of the algal tissue, thereby forming detritus suitable for use as a primary feed for marine organisms. Marine bacteria which belong to the genus Alteromonas can be used. Algal detritus made according to the invention is useful as a primary feed for larvae of fry (young fish), crustaceans or mollusks.
    Type: Grant
    Filed: March 7, 1996
    Date of Patent: September 1, 1998
    Assignee: Director-General of National Research Institute of Fisheries Science
    Inventors: Motoharu Uchida, Katsuyuki Numaguchi