Patents by Inventor Shizuka UKITA

Shizuka UKITA 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).

  • Patent number: 10869883
    Abstract: A nutrient composition contains a cellulose acetate having a total degree of acetyl substitution of 0.4 to 1.1. The cellulose acetate may have a compositional distribution index (CDI) of 2.0 or less, where the CDI is specified by the formula: CDI=(Measured value of half height width of chemical composition)/(Theoretical value of half height width of chemical composition) where the measured value of half height width of chemical composition represents the half height width of chemical composition determined by HPLC analysis of a cellulose acetate propionate prepared by propionylating all residual hydroxy groups of the cellulose acetate (sample); and [Math. 1] the theoretical value of half height width of chemical composition =2.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: December 22, 2020
    Assignee: DAICEL CORPORATION
    Inventors: Shu Shimamoto, Toshikazu Nakamura, Shizuka Ukita, Tsuyoshi Nakamura, Ryoko Yamauchi, Hiroshi Kobayashi
  • Patent number: 10703825
    Abstract: A cellulose acetate according to the present invention has a total degree of acetyl substitution of 0.4 to 1.1 and has a compositional distribution index (CDI) of 3.0 or less, where the CDI is specified by the formula: CDI=(Measured value of half height width of chemical composition)/(Theoretical value of half height width of chemical composition) where the measured value of half height width of chemical composition is a half height width of chemical composition determined by analyzing a cellulose acetate propionate by HPLC, where the cellulose acetate propionate is prepared by propionylating all residual hydroxy groups of the cellulose acetate (sample); and Theoretical value of half height width of chemical composition=2·35482?{square root over (3*DPw*(DS/3)*(1?DS/3))}/DPw??[Math.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: July 7, 2020
    Assignee: DAICEL CORPORATION
    Inventors: Shizuka Ukita, Hiroki Taniguchi, Shu Shimamoto, Toshikazu Nakamura
  • Patent number: 10442870
    Abstract: Provided is a novel cellulose derivative having excellent water resistance. This is a cellulose acylate oxoalkanoate which is a cellulose derivative corresponding to cellulose, except with substituents replacing part or all of hydrogen atoms in the hydroxy groups of the cellulose. The substituents includes a group represented by General Formula (1) and a group represented by General Formula (2). The cellulose acylate oxoalkanoate has a degree x of substitution with the group represented by General Formula (1), a degree y of substitution with the group represented by General Formula (2), and a degree z of unsubstitution, where x, y, and z meet conditions specified by Expressions (A), (B), and (C): 0.1?x?2.99??(A) 0.01?y?2.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: October 15, 2019
    Assignee: DAICEL CORPORATION
    Inventors: Tomohiro Hashizume, Shizuka Ukita, Shu Shimamoto, Toshikazu Nakamura
  • Patent number: 10300085
    Abstract: A nutrient composition, a lipid metabolism-improving agent, and prophylactic and/or therapeutic agents typically for inflammatory bowel diseases, immune disorders, cancers, non-alcoholic steatohepatitis, obesity, diabetes, and hypercholesterolemia each contain a cellulose acetate having a total degree of acetyl substitution of 0.4 to 1.1. The cellulose acetate may be one having a compositional distribution index (CDI) of 2.0 or less, where the CDI is defined by the formula: CDI=(Measured value of half height width of chemical composition)/(Theoretical value of half height width of chemical composition) where the measured value of half height width of chemical composition represents a half height width of chemical composition determined by HPLC analysis of a cellulose acetate propionate prepared by propionylating all residual hydroxy groups of the cellulose acetate (sample), and the theoretical value of half height width of chemical composition =2.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: May 28, 2019
    Assignee: DAICEL CORPORATION
    Inventors: Shu Shimamoto, Toshikazu Nakamura, Shizuka Ukita, Tsuyoshi Nakamura, Ryoko Yamauchi, Hiroshi Kobayashi, Tatsuya Morita, Tomomi Genda
  • Publication number: 20190151349
    Abstract: A nutrient composition contains a cellulose acetate having a total degree of acetyl substitution of 0.4 to 1.1. The cellulose acetate may have a compositional distribution index (CDI) of 2.0 or less, where the CDI is specified by the formula: CDI=(Measured value of half height width of chemical composition)/(Theoretical value of half height width of chemical composition) where the measured value of half height width of chemical composition represents the half height width of chemical composition determined by HPLC analysis of a cellulose acetate propionate prepared by propionylating all residual hydroxy groups of the cellulose acetate (sample); and [Math. 1] the theoretical value of half height width of chemical composition =2.
    Type: Application
    Filed: January 25, 2019
    Publication date: May 23, 2019
    Applicant: DAICEL CORPORATION
    Inventors: Shu SHIMAMOTO, Toshikazu NAKAMURA, Shizuka UKITA, Tsuyoshi NAKAMURA, Ryoko YAMAUCHI, Hiroshi KOBAYASHI
  • Patent number: 10188675
    Abstract: A nutrient composition contains a cellulose acetate having a total degree of acetyl substitution of 0.4 to 1.1. The cellulose acetate may have a compositional distribution index (CDI) of 2.0 or less, where the CDI is specified by the formula: CDI=(Measured value of half height width of chemical composition)/(Theoretical value of half height width of chemical composition) where the measured value of half height width of chemical composition represents the half height width of chemical composition determined by HPLC analysis of a cellulose acetate propionate prepared by propionylating all residual hydroxy groups of the cellulose acetate (sample); and the theoretical value of half height width of chemical composition=2.35482?{square root over (3*DPw*(DS/3)*(1?DS/3))}/DPw??[Math.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: January 29, 2019
    Assignee: DAICEL CORPORATION
    Inventors: Shu Shimamoto, Toshikazu Nakamura, Shizuka Ukita, Tsuyoshi Nakamura, Ryoko Yamauchi, Hiroshi Kobayashi
  • Publication number: 20170100426
    Abstract: A nutrient composition, a lipid metabolism-improving agent, and prophylactic and/or therapeutic agents typically for inflammatory bowel diseases, immune disorders, cancers, non-alcoholic steatohepatitis, obesity, diabetes, and hypercholesterolemia each contain a cellulose acetate having a total degree of acetyl substitution of 0.4 to 1.1. The cellulose acetate may be one having a compositional distribution index (CDI) of 2.0 or less, where the CDI is defined by the formula: CDI=(Measured value of half height width of chemical composition)/(Theoretical value of half height width of chemical composition) where the measured value of half height width of chemical composition represents a half height width of chemical composition determined by HPLC analysis of a cellulose acetate propionate prepared by propionylating all residual hydroxy groups of the cellulose acetate (sample), and the theoretical value of half height width of chemical composition=2.
    Type: Application
    Filed: March 20, 2015
    Publication date: April 13, 2017
    Applicant: DAICEL CORPORATION
    Inventors: Shu SHIMAMOTO, Toshikazu NAKAMURA, Shizuka UKITA, Tsuyoshi NAKAMURA, Ryoko YAMAUCHI, Hiroshi KOBAYASHI, Tatsuya MORITA, Tomomi GENDA
  • Publication number: 20170088636
    Abstract: Provided is a novel cellulose derivative having excellent water resistance. This is a cellulose acylate oxoalkanoate which is a cellulose derivative corresponding to cellulose, except with substituents replacing part or all of hydrogen atoms in the hydroxy groups of the cellulose. The substituents includes a group represented by General Formula (1) and a group represented by General Formula (2). The cellulose acylate oxoalkanoate has a degree x of substitution with the group represented by General Formula (1), a degree y of substitution with the group represented by General Formula (2), and a degree z of unsubstitution, where x, y, and z meet conditions specified by Expressions (A), (B), and (C): 0.1?x?2.99??(A) 0.01?y?2.
    Type: Application
    Filed: March 19, 2014
    Publication date: March 30, 2017
    Applicant: DAICEL CORPORATION
    Inventors: Tomohiro HASHIZUME, Shizuka UKITA, Shu SHIMAMOTO, Toshikazu NAKAMURA
  • Publication number: 20160317568
    Abstract: A nutrient composition contains a cellulose acetate having a total degree of acetyl substitution of 0.4 to 1.1. The cellulose acetate may have a compositional distribution index (CDI) of 2.0 or less, where the CDI is specified by the formula: CDI=(Measured value of half height width of chemical composition)/(Theoretical value of half height width of chemical composition) where the measured value of half height width of chemical composition represents the half height width of chemical composition determined by HPLC analysis of a cellulose acetate propionate prepared by propionylating all residual hydroxy groups of the cellulose acetate (sample); and the theoretical value of half height width of chemical composition=2.35482?{square root over (3*DPw*(DS/3)*(1?DS/3))}/DPw??[Math.
    Type: Application
    Filed: March 24, 2014
    Publication date: November 3, 2016
    Applicant: DAICEL CORPORATION
    Inventors: Shu SHIMAMOTO, Toshikazu NAKAMURA, Shizuka UKITA, Tsuyoshi NAKAMURA, Ryoko YAMAUCHI, Hiroshi KOBAYASHI
  • Publication number: 20160032020
    Abstract: A cellulose acetate according to the present invention has a total degree of acetyl substitution of 0.4 to 1.1 and has a compositional distribution index (CDI) of 3.0 or less, where the CDI is specified by the formula: CDI=(Measured value of half height width of chemical composition)/(Theoretical value of half height width of chemical composition) where the measured value of half height width of chemical composition is a half height width of chemical composition determined by analyzing a cellulose acetate propionate by HPLC, where the cellulose acetate propionate is prepared by propionylating all residual hydroxy groups of the cellulose acetate (sample); and Theoretical value of half height width of chemical composition=2·35482?{square root over (3*DPw*(DS/3)*(1?DS/3))}{square root over (3*DPw*(DS/3)*(1?DS/3))}/DPw??[Math.
    Type: Application
    Filed: March 12, 2014
    Publication date: February 4, 2016
    Applicant: DAICEL CORPORATION
    Inventors: Shizuka UKITA, Hiroki TANIGUCHI, Shu SHIMAMOTO, Toshikazu NAKAMURA