Patents by Inventor Matsutoshi Azuma

Matsutoshi Azuma 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 ASTAXANTHIN BY FERMENTATION
    Publication number: 20170029862
    Abstract: An object of the present invention is to provide a method for microbioiogically producing astaxanthin of high concentration at low cost while suppressing production of canthaxanthin. Specifically, the present invention relates to a method for producing carotenoids including astaxanthin comprising culturing a bacterium that concurrently produces astaxanthin and canthaxanthin in a medium containing biotin, wherein a ratio of concentration of produced canthaxanthin to concentration of produced astaxanthin in a culture product after the end of culture in the medium is lower than that in a culture product alter the end of culture in a biotin-free medium.
    Type: Application
    Filed: October 14, 2016
    Publication date: February 2, 2017
    Applicant: JX Nippon Oil & Energy Corporation
    Inventors: Kazuaki Hirasawa, Hiroshi Satoh, Hisashi Yoneda, Tetsuhisa Yata, Matsutoshi Azuma
  • METHOD FOR PRODUCING ASTAXANTHIN BY FERMENTATION
    Publication number: 20130012594
    Abstract: An object of the present invention is to provide a method for microbiologically producing astaxanthin of high concentration at low cost while suppressing production of canthaxanthin. Specifically, the present invention relates to a method for producing carotenoids including astaxanthin comprising culturing a bacterium that concurrently produces astaxanthin and canthaxanthin in a medium containing biotin, wherein a ratio of concentration of produced canthaxanthin to concentration of produced astaxanthin in a culture product after the end of culture in the medium is lower than that in a culture product after the end of culture in a biotin-free medium.
    Type: Application
    Filed: March 15, 2011
    Publication date: January 10, 2013
    Applicant: JX Nippon Oil & Energy Corporation
    Inventors: Kazuaki Hirasawa, Hiroshi Satoh, Hisashi Yoneda, Tetsuhisa Yata, Matsutoshi Azuma