Patents by Inventor Ryouichi Yasumoto

Ryouichi Yasumoto 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 producing an angiotensin converting enzyme inhibitor-containing composition
    Patent number: 5369015
    Abstract: Disclosed is a method for producing an angiotensin converting enzyme inhibitor composition from natural materials, which composition is of use as an antihypertensive drug or diet. The method comprises heating a meat in water at a temperature not lower than 50.degree. C. to extract water-soluble protein and hydrolyzing the residue predominantly composed of water-insoluble protein with a protease.
    Type: Grant
    Filed: October 14, 1992
    Date of Patent: November 29, 1994
    Assignee: Nippon Gohsei Kagaku Kogyo Kabushiki Kaisha
    Inventors: Masaaki Yoshikawa, Keiichi Yokoyama, Masayasu Hasegawa, Ryouichi Yasumoto, Hiroyuki Fujita
  • Method for producing an angiotensin converting enzyme inhibitor-containing composition
    Patent number: 5314807
    Abstract: A method of producing an angiotensin converting enzyme inhibitor-containing composition, which is of value as an antihypertensive agent or diet, from natural resources. According to the method, proteins are hydrolyzed with a protease elaborated by a microorganism of the genus Bacillus, Aspergillus or Rhizopus or a protease of papaya origin.
    Type: Grant
    Filed: March 27, 1992
    Date of Patent: May 24, 1994
    Assignee: Nippon Gohsei Kagaku Kogyo Kabushiki Kaisha
    Inventors: Masaaki Yoshikawa, Keiichi Yokoyama, Masayasu Hasegawa, Ryouichi Yasumoto, Hiroyuki Fujita