Patents by Inventor Naotake Ohta

Naotake Ohta 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 tartar separation
    Patent number: 4891236
    Abstract: An externally cooled cylindrical vessel has a draft tube centered in the lower half thereof. A continuous circulation seeded with tartars crystals includes a fast downward flow through the draft tube and a slow upward flow outside the draft tube. The circulation induces crystal growth and the removal of tartars from the liquid. A coning zone is defined in the vessel above the draft tube. The slow upward flow moves toward the calming zone, facilitating classification of the crystalline matter which is reintroduced into the fact downward flow. The liquid product from which the tartars has been removed and which is collected in the upper section of the vessel is tapped off by an overflow port located near the top of the vessel.
    Type: Grant
    Filed: October 7, 1988
    Date of Patent: January 2, 1990
    Assignees: Suntory Limited, Kansai Chemical Engineering Co., Ltd.
    Inventors: Naotake Ohta, Masahiro Yotsumoto, Haruo Nishino, Hiroshi Tanahashi, Hajime Kato, Toshiaki Tazawa, Hideo Noda, Yuzuru Wakabayashi
  • Method and apparatus for tartars separation
    Patent number: 4798131
    Abstract: An externally cooled cylindrical vessel has a draft tube centered in the lower half thereof. A continuous circulation seeded with tartars crystals includes a fast downward flow through the draft tube and a slow upward flow outside the draft tube. The circulation induces crystal growth and the removal of tartars from the liquid. A coning zone is defined in the vessel above the draft tube. The slow upward flow moves toward the calming zone, facilitating classification of the crystalline matter which is reintroduced into the fact downward flow. The liquid product from which the tartars has been removed and which is collected in the upper section of the vessel is tapped off by an overflow port located near the top of the vessel.
    Type: Grant
    Filed: September 19, 1986
    Date of Patent: January 17, 1989
    Assignees: Suntory Limited, Kansai Chemical Engineering Co., Ltd.
    Inventors: Naotake Ohta, Masahiro Yotsumoto, Haruo Nishino, Hiroshi Tanahashi, Hajime Kato, Toshiaki Tazawa, Hideo Noda, Yuzuru Wakabayashi