Patents by Inventor Hirohisa Tatsuzawa

Hirohisa Tatsuzawa 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).

  • Counter-rotation twin-screw extruder for extracting juice
    Patent number: 5417155
    Abstract: A counter-rotation twin-screw extruder for extracting a juice by squeezing vegetables and/or fruits has mutually engaging screws mounted to two mutually parallel rotary shafts which rotate in mutually opposite directions. The screws are enclosed inside a screen structure made of a curved member made of a stainless steel plate and having slits through which juice is collected.
    Type: Grant
    Filed: December 14, 1993
    Date of Patent: May 23, 1995
    Assignees: Kagome Kabushiki Kaisha, Suehiro Epm Corp.
    Inventors: Hirohisa Tatsuzawa, Takahiro Inakuma, Yukio Ishiguro, Toshio Yamamoto, Shigeo Kanou
  • Method of producing carrot juice
    Patent number: 5403613
    Abstract: Carrot juice is produced by crushing or chopping carrots while spraying them with an aqueous solution of citric acid or lemon juice such that the sprayed amount of citric acid is 0.05-0.5 weight % of the carrots being crushed or chopped, effecting inactivation of enzymes by heating the crushed or chopped carrots, and squeezing the heated carrots to collect juice by means of a counter-rotation twin-screw extruder.
    Type: Grant
    Filed: November 18, 1993
    Date of Patent: April 4, 1995
    Assignee: Kagome Kabushiki Kaisha
    Inventors: Hiroyasu Furui, Mitsumasa Yasumoto, Hirohisa Tatsuzawa, Takahiro Inakuma, Yukio Ishiguro