Patents by Inventor Yutaka Jyumi

Yutaka Jyumi 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).

  • Patent number: 5225232
    Abstract: In a method of processing milt obtained from male cod fish, 5 Kg. of the milt is placed in a hot water bath equipped with automatic temperature control set at a temperature of 60 degrees C. to 80 degrees 1C. and heated for 8 to 10- seconds. The heated milt is then placed in a cold water bath consisting of 20 liters of water containing dissolved vitamin C in a concentration of 1% to 2% and at a temperature automatically controlled at 2 degrees C. to 3 degrees C. and maintained in the cold water bath for 8 to 10 seconds. The cooled milt is then vacuum packed in 200 g packages and placed in a freezer cooled by liquid nitrogen to -150 degrees C. to -170 degrees C. for 15 to 20 minutes. For storage, the frozen milt is placed in heat-insulated containers of polysterene foam plastic and placed in cold storage. To thaw the frozen milt, the heat-insulated container containing the milt is exposed to room temperature for 36 to 42 hours.
    Type: Grant
    Filed: September 10, 1992
    Date of Patent: July 6, 1993
    Assignee: Shin Tokyo International Incorporated
    Inventor: Yutaka Jyumi