Patents by Inventor Shu Shimamoto
Shu Shimamoto 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).
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Patent number: 11896043Abstract: Object of the present invention is to provide an intestinal immune-enhancing agent that can sufficiently increase IgA in the intestinal tract with a low dose while maintaining an increased amount of IgA for an extended period of time. Provided is an intestinal immune-enhancing agent containing a cellulose acetate that has a total degree of acetyl substitution from 0.4 to 1.1.Type: GrantFiled: September 15, 2021Date of Patent: February 13, 2024Assignee: DAICEL CORPORATIONInventors: Tadashi Takeuchi, Eiji Miyauchi, Shu Shimamoto, Akinobu Matsuyama, Hiroshi Ohno
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Patent number: 11802166Abstract: An object of the present disclosure is to provide a cellulose acetate film having excellent bending properties and high transparency. The subject cellulose acetate film contains cellulose acetate having a cellulose triacetate I crystal structure, the cellulose acetate film having a light transmittance of 70% or higher at 660 nm.Type: GrantFiled: February 26, 2020Date of Patent: October 31, 2023Assignees: NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY, DAICEL CORPORATIONInventors: Yasumitsu Uraki, Haruo Konno, Shu Shimamoto
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Patent number: 11525014Abstract: An object of the present invention is to provide cellulose acetate that has excellent compatibility with a resin, can reinforce a resin, and has excellent thermal stability. An embodiment of the present invention is cellulose acetate having a cellulose triacetate I crystal structure, wherein a temperature at which a weight loss relative to weight at 100° C. reaches 5% is 200° C. or higher when the cellulose acetate is heated at a heating rate of 10° C./min under a nitrogen atmosphere.Type: GrantFiled: June 12, 2019Date of Patent: December 13, 2022Assignees: NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY, NIPPON PAPER INDUSTRIES CO., LTD., DAICEL CORPORATIONInventors: Yasumitsu Uraki, Haruo Konno, Shu Shimamoto
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Publication number: 20220227891Abstract: The present invention is to provide a cellulose acetate that has a low total degree of acetyl substitution and a degree of acetyl substitution at 6-position that is lower compared to the degrees of acetyl substitution at 2-position and 3-position of a glucose ring, and has excellent water solubility. A cellulose acetate having: a total degree of acetyl substitution of 0.4 or greater and 0.9 or less, a proportion of a degree of acetyl substitution at 6-position in the total degree of acetyl substitution of 0% or greater and 18% or less, and a light transmittance at 660 nm of 5% or greater in 4 wt. % aqueous solution.Type: ApplicationFiled: June 24, 2020Publication date: July 21, 2022Applicant: DAICEL CORPORATIONInventors: Shuuji YOSHIOKA, Toshikazu NAKAMURA, Shu SHIMAMOTO, Takao KISHIMOTO
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Publication number: 20220135706Abstract: An object of the present disclosure is to provide a cellulose acetate film having excellent bending properties and high transparency. The subject cellulose acetate film contains cellulose acetate having a cellulose triacetate I crystal structure, the cellulose acetate film having a light transmittance of 70% or higher at 660 nm.Type: ApplicationFiled: February 26, 2020Publication date: May 5, 2022Applicants: NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY, DAICEL CORPORATIONInventors: Yasumitsu URAKI, Haruo KONNO, Shu SHIMAMOTO
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Publication number: 20220061372Abstract: Object of the present invention is to provide an intestinal immune-enhancing agent that can sufficiently increase IgA in the intestinal tract with a low dose while maintaining an increased amount of IgA for an extended period of time. Provided is an intestinal immune-enhancing agent containing a cellulose acetate that has a total degree of acetyl substitution from 0.4 to 1.1.Type: ApplicationFiled: September 15, 2021Publication date: March 3, 2022Applicant: DAICEL CORPORATIONInventors: Tadashi TAKEUCHI, Eiji MIYAUCHI, Shu SHIMAMOTO, Akinobu MATSUYAMA, Hiroshi OHNO
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Patent number: 11220763Abstract: Disclosed herein is cellulose acetate fibers that have an excellent affinity for resins and is capable of reinforcing resins. The cellulose acetate fibers have a cellulose triacetate I crystal structure and a number-average fiber diameter of 2 nm or more but 400 nm or less.Type: GrantFiled: March 9, 2017Date of Patent: January 11, 2022Assignees: NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY, NIPPON PAPER INDUSTRIES CO., LTD., DAICEL CORPORATIONInventors: Yasumitsu Uraki, Haruo Konno, Shu Shimamoto
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Publication number: 20210379097Abstract: An object is to provide a Th1-increasing agent that can reduce constraints on storage conditions and feeding form and sufficiently increase Th1 at lower doses. A Th1-increasing agent containing a cellulose derivative as an active ingredient, the cellulose derivative having a degree of butyryl substitution of 0.3 or greater and 2.6 or less, and a total degree of substitution of 0.5 or greater and 2.8 or less.Type: ApplicationFiled: October 24, 2019Publication date: December 9, 2021Applicant: DAICEL CORPORATIONInventors: Hiroshi OHNO, Tadashi TAKEUCHI, Shu SHIMAMOTO, Shuuji YOSHIOKA, Eiji MIYAUCHI, Hiroki NEGISHI
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Publication number: 20210221918Abstract: An object of the present invention is to provide cellulose acetate that has excellent compatibility with a resin, can reinforce a resin, and has excellent thermal stability. An embodiment of the present invention is cellulose acetate having a cellulose triacetate I crystal structure, wherein a temperature at which a weight loss relative to weight at 100° C. reaches 5% is 200° C. or higher when the cellulose acetate is heated at a heating rate of 10° C./min under a nitrogen atmosphere.Type: ApplicationFiled: June 12, 2019Publication date: July 22, 2021Applicants: NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY, NIPPON PAPER INDUSTRIES CO., LTD., DAICEL CORPORATIONInventors: Yasumitsu URAKI, Haruo KONNO, Shu SHIMAMOTO
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Patent number: 10889916Abstract: Provided are a cellulose acetate fiber and a cellulose acetate fiber molded article which are excellent in water solubility and biodegradability and are small in load onto the natural environment even when allowed to stand still in the environment. The invention provides a cellulose acetate fiber containing cellulose acetate having a total degree of acetyl substitution of 0.4 to 1.3 and a compositional distribution index (CDI) of 2.0 or less as well as a cellulose acetate fiber molded article.Type: GrantFiled: January 15, 2014Date of Patent: January 12, 2021Assignee: DAICEL CORPORATIONInventors: Shu Shimamoto, Shizuka Okada, Hiroki Taniguchi, Toshikazu Nakamura
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Patent number: 10869883Abstract: 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: GrantFiled: January 25, 2019Date of Patent: December 22, 2020Assignee: DAICEL CORPORATIONInventors: Shu Shimamoto, Toshikazu Nakamura, Shizuka Ukita, Tsuyoshi Nakamura, Ryoko Yamauchi, Hiroshi Kobayashi
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Publication number: 20200288762Abstract: Object of the present invention is to provide an intestinal immune-enhancing agent that can sufficiently increase IgA in the intestinal tract with a low dose while maintaining an increased amount of IgA for an extended period of time. Provided is an intestinal immune-enhancing agent containing a cellulose acetate that has a total degree of acetyl substitution from 0.4 to 1.1.Type: ApplicationFiled: October 23, 2018Publication date: September 17, 2020Applicant: DAICEL CORPORATIONInventors: Tadashi TAKEUCHI, Eiji MIYAUCHI, Shu SHIMAMOTO, Akinobu MATSUYAMA, Hiroshi OHNO
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Patent number: 10703825Abstract: 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: GrantFiled: March 12, 2014Date of Patent: July 7, 2020Assignee: DAICEL CORPORATIONInventors: Shizuka Ukita, Hiroki Taniguchi, Shu Shimamoto, Toshikazu Nakamura
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Patent number: 10442870Abstract: 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: GrantFiled: March 19, 2014Date of Patent: October 15, 2019Assignee: DAICEL CORPORATIONInventors: Tomohiro Hashizume, Shizuka Ukita, Shu Shimamoto, Toshikazu Nakamura
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Patent number: 10300085Abstract: 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: GrantFiled: March 20, 2015Date of Patent: May 28, 2019Assignee: DAICEL CORPORATIONInventors: Shu Shimamoto, Toshikazu Nakamura, Shizuka Ukita, Tsuyoshi Nakamura, Ryoko Yamauchi, Hiroshi Kobayashi, Tatsuya Morita, Tomomi Genda
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Publication number: 20190151349Abstract: 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: ApplicationFiled: January 25, 2019Publication date: May 23, 2019Applicant: DAICEL CORPORATIONInventors: Shu SHIMAMOTO, Toshikazu NAKAMURA, Shizuka UKITA, Tsuyoshi NAKAMURA, Ryoko YAMAUCHI, Hiroshi KOBAYASHI
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Publication number: 20190127889Abstract: Disclosed herein is cellulose acetate fibers that have an excellent affinity for resins and is capable of reinforcing resins. The cellulose acetate fibers have a cellulose triacetate I crystal structure and a number-average fiber diameter of 2 nm or more but 400 nm or less.Type: ApplicationFiled: March 9, 2017Publication date: May 2, 2019Applicants: NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY, NIPPON PAPER INDUSTRIES CO., LTD., DAICEL CORPORATIONInventors: Yasumitsu URAKI, Haruo KONNO, Shu SHIMAMOTO
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Patent number: 10188675Abstract: 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: GrantFiled: March 24, 2014Date of Patent: January 29, 2019Assignee: DAICEL CORPORATIONInventors: Shu Shimamoto, Toshikazu Nakamura, Shizuka Ukita, Tsuyoshi Nakamura, Ryoko Yamauchi, Hiroshi Kobayashi
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Patent number: 9796920Abstract: Disclosed herein is a quantum dot composite that can maintain luminous efficiency per unit quantum dot even when a quantum dot concentration is high, and therefore can achieve a high emission intensity. The quantum dot composite includes: a matrix; and quantum dots dispersed in the matrix, wherein the matrix is composed of cellulose acetate having a compositional distribution index (CDI) of 3.0 or less, and a concentration of the quantum dots is 0.05 wt % or higher.Type: GrantFiled: January 29, 2014Date of Patent: October 24, 2017Assignee: DAICEL CORPORATIONInventors: Shu Shimamoto, Toshikazu Nakamura
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Publication number: 20170100426Abstract: 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: ApplicationFiled: March 20, 2015Publication date: April 13, 2017Applicant: DAICEL CORPORATIONInventors: Shu SHIMAMOTO, Toshikazu NAKAMURA, Shizuka UKITA, Tsuyoshi NAKAMURA, Ryoko YAMAUCHI, Hiroshi KOBAYASHI, Tatsuya MORITA, Tomomi GENDA