Patents by Inventor Hidetada Nagai

Hidetada Nagai 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: 20210246417
    Abstract: According to the present invention, a powder containing a carotenoid for feed having improved color enhancing ability, and a method for producing the same are provided. A method for producing a dried bacterial cell powder containing a carotenoid, comprising a step of drying via conductive heat transfer and a pulverization step and a dried bacterial cell powder produced by the method are provided.
    Type: Application
    Filed: April 30, 2021
    Publication date: August 12, 2021
    Applicant: JX Nippon Oil & Energy Corporation
    Inventors: Hidetada Nagai, Yuki Kawashima, Futoshi Sunada, Toshiyuki Takahashi, Kenichi Aoyagi
  • Publication number: 20200299747
    Abstract: A mutant carotenoidogenic bacterium, comprising any of genes (a)-(c) below: (a) a gene encoding a protein comprising a mutant amino acid sequence in which at least the 225th amino acid residue in the amino acid sequence of 1-deoxy-D-xylulose 5-phosphate synthase of a carotenoidogenic bacterium has been substituted with other amino acid residue; (b) a gene encoding a protein comprising a mutant amino acid sequence in which at least the 305th amino acid residue in the amino acid sequence of decaprenyl diphosphate synthase of a carotenoidogenic bacterium has been substituted with other amino acid residue; and (c) both of the genes (a) and (b) above.
    Type: Application
    Filed: March 29, 2017
    Publication date: September 24, 2020
    Inventors: Hidetada NAGAI, Wataru SATO, Toshiyuki TAKAHASHI, Harumi SATO
  • Publication number: 20180146698
    Abstract: A method of obtaining eggs taking on the yolk color preferred by consumers, whereby cost reduction and stable supply of feeds can be achieved, is provided. Specifically, the present invention provides a formula feed for poultry, in which the content of corn is 50% or less and the content of astaxanthin from a dry powder of a bacterium is 1 to 8 ppm, and a method of obtaining eggs taking on a desired yolk color using the formula feed. According to the present invention, it becomes possible to provide a formula feed that can be stably supplied at low price without influence of seasonal and weather conditions. In addition, poultry eggs taking on a yolk color that satisfies the consumer preference can be provided at a lower price.
    Type: Application
    Filed: May 27, 2016
    Publication date: May 31, 2018
    Inventors: Wataru Sato, Hidetada Nagai, Yuki Kawashima, Michihisa Ikarashi, Yutaka Sakai
  • Publication number: 20170159009
    Abstract: According to the present invention, a powder containing a carotenoid for feed having improved color enhancing ability, and a method for producing the same are provided. A method for producing a dried bacterial cell powder containing a carotenoid, comprising a step of drying via conductive heat transfer and a pulverization step and a dried bacterial cell powder produced by the method are provided.
    Type: Application
    Filed: June 29, 2015
    Publication date: June 8, 2017
    Applicant: JX Nippon Oil & Energy Corporation
    Inventors: Hidetada Nagai, Yuki Kawashima, Futoshi Sunada, Toshiyuki Takahashi, Kenichi Aoyagi
  • Patent number: 9192588
    Abstract: An object of the present invention is to provide zeaxanthin-enriched poultry eggs containing zeaxanthin at high concentrations. The present invention specifically relates to zeaxanthin-enriched poultry eggs obtained by feeding poultry with a poultry feedstuff containing zeaxanthin-producing bacteria.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: November 24, 2015
    Assignee: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Yuki Kawashima, Hidetada Nagai, Michihisa Ikarashi
  • Publication number: 20130330298
    Abstract: An object of the present invention is to provide zeaxanthin-enriched poultry eggs containing zeaxanthin at high concentrations. The present invention specifically relates to zeaxanthin-enriched poultry eggs obtained by feeding poultry with a poultry feedstuff containing zeaxanthin-producing bacteria.
    Type: Application
    Filed: February 17, 2012
    Publication date: December 12, 2013
    Applicant: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Yuki Kawashima, Hidetada Nagai, Michihisa Ikarashi
  • Patent number: 8198478
    Abstract: This present invention provides crystallization of ?-form crystals preferentially which are metastable crystals without precipitating ?-form crystals. This method allows for the precipitation of ?-form crystals which are metastable crystals by combining (a) the process of achieving supersaturation by mixing an acidic solution with an aqueous solution containing glutamic acid to attain a pH at the isoelectric point of glutamic acid or lower, and (b) after a certain elapsed time, adding more of the aqueous glutamic acid solution to achieve a second supersaturation.
    Type: Grant
    Filed: November 13, 2009
    Date of Patent: June 12, 2012
    Assignee: Ajinomoto Co., Inc.
    Inventors: Hidetada Nagai, Yoshifumi Takahashi, Takao Yamane, Nobuharu Konishi
  • Publication number: 20100094048
    Abstract: This present invention provides crystallization of ?-form crystals preferentially which are metastable crystals without precipitating ?-form crystals. This method allows for the precipitation of ?-form crystals which are metastable crystals by combining (a) the process of achieving supersaturation by mixing an acidic solution with an aqueous solution containing glutamic acid to attain a pH at the isoelectric point of glutamic acid or lower, and (b) after a certain elapsed time, adding more of the aqueous glutamic acid solution to achieve a second supersaturation.
    Type: Application
    Filed: November 13, 2009
    Publication date: April 15, 2010
    Inventors: Hidetada Nagai, Yoshifumi Takahashi, Takao Yamane, Nobuharu Konishi