Patents by Inventor Masakazu Yamaoka

Masakazu Yamaoka 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).

  • Publication number: 20040097702
    Abstract: A microorganism belonging to the genus Bacillus is cultured and novel thiopeptide compounds QN3323 and publicly known compounds thiocillin I/II, etc. are collected from the culture medium. Because of having a favorable antibacterial activity, these thiopeptide compounds are useful as drugs, in particuclar, remedies for infection with multidrug-resistant bacteria.
    Type: Application
    Filed: September 15, 2003
    Publication date: May 20, 2004
    Inventors: Kazuma Kamigiri, Masato Watanabe, Koji Nagai, Nakako Arao, Kenichi Suzumura, Ken-ichi Suzuki, Ryuichiro Kurane, Masakazu Yamaoka, Yasuhiro Kawano
  • Patent number: 6461839
    Abstract: Present invention provides a method to efficiently manufacture an oil-containing product including long chain polyunsaturated fatty acid, or a high added value oil containing long chain polyunsaturated fatty acids. The method comprises culturing a microorganism belonging to the Genus Labyrinthula. The Labyrinthula microorganism is cultured in a medium containing oil or fatty acid as a carbon source, and the produced long chain polyunsaturated fatty acid is recovered from the culture. With the present invention, it is possible to efficiently produce from the vegetable oil and the like, an oil containing product comprising long chain polyunsaturated fatty acids such as docosahexanoic acid having a carbon number of 20 or more, and two or more unsaturated bonds, or an oil containing the long chain polyunsaturated fatty acid. Further, the method of the present invention may be used to reform oil by converting the plant oil and like to high added value oil containing the long chain polyunsaturated fatty acid.
    Type: Grant
    Filed: December 28, 2000
    Date of Patent: October 8, 2002
    Assignee: Agency of Industrial Science and Technology
    Inventors: Toshihiro Yokochi, Toro Nakahara, Masakazu Yamaoka, Ryuichiro Kurane
  • Publication number: 20010041358
    Abstract: It is an object of the present invention to provide a method of efficiently manufacturing an oil-containing product including long chain polyunsaturated fatty acid or an high added value oil containing long chain polyunsaturated fatty acid, by using microorganisms.
    Type: Application
    Filed: December 28, 2000
    Publication date: November 15, 2001
    Applicant: Secretary of Agency of Industrial Science and Technology
    Inventors: Toshihiro Yokochi, Toro Nakahara, Masakazu Yamaoka, Ryuichiro Kurane