Patents by Inventor Kanzo Sakata

Kanzo Sakata 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).

  • Phosphonic acid diester derivative and method for producing thereof
    Patent number: 8129557
    Abstract: A phosphonic acid diester derivative represented by the following general formula (1): wherein at least one of R1 and R2 denotes a leaving group.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: March 6, 2012
    Inventors: Jun Hiratake, Kanzo Sakata, Liyou Han
  • PHOSPHONIC ACID DIESTER DERIVATIVE AND METHOD FOR PRODUCING THEREOF
    Publication number: 20090163725
    Abstract: A phosphonic acid diester derivative represented by the following general formula (1): wherein at least one of R1 and R2 denotes a leaving group.
    Type: Application
    Filed: November 30, 2006
    Publication date: June 25, 2009
    Inventors: Jun Hiratake, Kanzo Sakata, Liyou Han
  • Diglycosidase isolated from microorganisms
    Patent number: 7109014
    Abstract: This invention relates to a novel microorganism-derived enzyme having an activity to cut disaccharide glycosides (particularly, ?-primeveroside and/or analogous disaccharide glycosides) in disaccharide unit, a method for producing the enzyme, a gene which encodes the enzyme and use of the enzyme. Various components can be formed by the action of this enzyme upon disaccharide glycosides.
    Type: Grant
    Filed: September 29, 1999
    Date of Patent: September 19, 2006
    Assignee: Amano Enzyme Inc.
    Inventors: Shigeru Yamamoto, Masamichi Okada, Taichi Usui, Kanzo Sakata, Atsuki Toumoto, Kazutaka Tsuruhami
  • Process for producing tea drink and tea drink product
    Publication number: 20050163901
    Abstract: There is provided a method of producing a tea beverage having a further reinforced or improved flavor. Further provided is a method of producing a tea beverage having an improved flavor, with good productivity and stable quality. In the process of producing a tea beverage, a diglycosidase derived from a microorganism is allowed to act.
    Type: Application
    Filed: December 25, 2002
    Publication date: July 28, 2005
    Applicant: AMONO ENZYME INC.
    Inventors: Kazutaka Tsuruhami, Shigeharu Mori, Kanzo Sakata
  • Polynucleotides encoding polypeptides having &bgr;-primeverosidase activity
    Patent number: 6645750
    Abstract: A &bgr;-primeverosidase gene characterized by encoding a protein containing the amino acid sequence represented by SEQ ID NO:1 in the Sequence Listing or an amino acid sequence derived from this sequence by deletion, substitution, insertion or addition of one or more amino acids and utilization thereof.
    Type: Grant
    Filed: September 4, 2001
    Date of Patent: November 11, 2003
    Assignee: Amano Enzyme Inc.
    Inventors: Kanzo Sakata, Masaharu Mizutani
  • Inositol glycoside 2-O-Beta-L-arabinopyranosyl-myo-inositol
    Patent number: 4946950
    Abstract: A glycoside of inositol which has been isolated from a hot-water extract of tea leaves. The glycoside is identified from the analytical results to be 2-O-beta-L-arabinopyranosyl-myo-inositol.
    Type: Grant
    Filed: February 8, 1988
    Date of Patent: August 7, 1990
    Assignee: Mitsui Norin Co., Ltd.
    Inventors: Yukihiko Hara, Kazuo Okushio, Kanzo Sakata