Patents by Inventor Denbei Kawamura

Denbei Kawamura 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 functional microbially fermented tea extract containing polyphenol derivative
    Patent number: 9029110
    Abstract: A functional microbially fermented tea extract containing a novel polyphenol derivative and a method for producing the same are provided. A functional microbially fermented tea extract containing various extracts and a novel polyphenol derivative is produced by subjecting, to an extraction treatment, a microbially fermented tea leaf obtained by culturing one species selected from Aspergillus sp. (PK-1), Aspergillus oryzae (NBRS 4214) sp. (AO-1), Aspergillus awamori (NBRS 4122) sp. (SK-1), and Eurotium sp. (KA-1) with a tea leaf. Furthermore, for example, a functional fermented tea extract enriched with a novel polyphenol derivative is produced.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: May 12, 2015
    Assignees: Kabushiki Kaisha Riverson, Saga University, Nagasaki Prefectural University Corporation
    Inventors: Teruyoshi Yanagita, Kanji Ishimaru, Takashi Tanaka, Kazunori Koba, Hitoshi Miyazaki, Naohito Aoki, Denbei Kawamura
  • Polyphenol derivative and method for producing the same
    Patent number: 8558016
    Abstract: A novel substance exhibiting physiologically active effects is produced from a tea leaf. A novel polyphenol derivative is produced, for example, by subjecting a microbially fermented tea leaf obtained by culturing Aspergillus sp. (PK-1) with a tea leaf, to an extraction treatment.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: October 15, 2013
    Assignees: Kabaushiki Kaisha Riverson, Saga University
    Inventors: Teruyoshi Yanagita, Kanji Ishimaru, Takashi Tanaka, Kazunori Koba, Hitoshi Miyazaki, Naohito Aoki, Denbei Kawamura
  • POLYPHENOL DERIVATIVE AND METHOD FOR PRODUCING THE SAME
    Publication number: 20120220789
    Abstract: A novel substance exhibiting physiologically active effects is produced from a tea leaf. A novel polyphenol derivative is produced, for example, by subjecting a microbially fermented tea leaf obtained by culturing Aspergillus sp. (PK-1) with a tea leaf, to an extraction treatment.
    Type: Application
    Filed: September 17, 2010
    Publication date: August 30, 2012
    Applicants: SAGA UNIVERSITY, KABUSHIKI KAISHA RIVERSON
    Inventors: Teruyoshi Yanagita, Kanji Ishimaru, Takashi Tanaka, Kazunori Koba, Hitoshi Miyazaki, Naohito Aoki, Denbei Kawamura
  • FUNCTIONAL MICROBIALLY FERMENTED TEA EXTRACT CONTAINING POLYPHENOL DERIVATIVE AND METHOD FOR PRODUCING THE SAME
    Publication number: 20120220650
    Abstract: A functional microbially fermented tea extract containing a novel polyphenol derivative and a method for producing the same are provided. A functional microbially fermented tea extract containing various extracts and a novel polyphenol derivative is produced by subjecting, to an extraction treatment, a microbially fermented tea leaf obtained by culturing one species selected from Aspergillus sp. (PK-1), Aspergillus oryzae (NBRS 4214) sp. (AO-1), Aspergillus awamori (NBRS 4122) sp. (SK-1), and Eurotium sp. (KA-1) with a tea leaf. Furthermore, for example, a functional fermented tea extract enriched with a novel polyphenol derivative is produced.
    Type: Application
    Filed: September 17, 2010
    Publication date: August 30, 2012
    Applicants: KABUSHIKI KAISHA RIVERSON, NAGASAKI PREFECTURAL UNIVERSITY CORPORATION, SAGA UNIVERSITY
    Inventors: Teruyoshi Yanagita, Kanji Ishimaru, Takashi Tanaka, Kazunori Koba, Hitoshi Miyazaki, Naohito Aoki, Denbei Kawamura