Patents by Inventor Midori Shimura

Midori Shimura 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: 20230272123
    Abstract: A paramylon-based resin having a weight-average molecular weight of paramylon in a range of 70000 to 140000, and formed by substituting hydrogen atoms of hydroxy groups of a paramylon with a long-chain component being a linear saturated aliphatic acyl group having 14 or more carbon atoms and a short-chain component being an acyl group (acetyl group or/and propionyl group) having 2 or 3 carbon atoms, wherein a degree of substitution with the long-chain component (DSLo) and a degree of substitution with the short-chain component (DSSh) satisfy the following conditional expressions (1) and (2), Izod impact strength is 5.0 kJ/m2 or more, and an MFR (melt flow rate at 210° C. and under a load of 5 kg) is 2 g/10 min or more. To provide a paramylon-based resin excellent in mechanical characteristics and thermoplasticity. 2.2?DSLo+DSSh?2.
    Type: Application
    Filed: April 20, 2023
    Publication date: August 31, 2023
    Applicants: NEC CORPORATION, UNIVERSITY OF TSUKUBA
    Inventors: Midori SHIMURA, Shukichi Tanaka, Toshie Miyamoto, Masatoshi Iji
  • Publication number: 20230174681
    Abstract: A paramylon-based resin excellent in mechanical characteristics and thermoplasticity is provided. The present embodiment provides a paramylon-based resin in which hydrogen atoms of hydroxy groups of paramylon are substituted by linear saturated aliphatic acyl group having 14 or more carbon atoms as a long chain component and/or acyl group having 2 or 3 carbon atoms (acetyl group or/and propionyl group) as a short chain component, wherein the paramylon has a weight average molecular weight in the range of more than 140000 to 220000 and a molecular weight distribution (weight average molecular weight/number average molecular weight) of 6.5 or less, a protein content of the paramylon is 0.22% by mass to 5.0% by mass, and a degree of substitution (DSLo) by the long chain component and a degree of substitution (DSSh) by the short chain component satisfy the following expressions (S1), (L1) and (T1); 1.7?DSSh?2.8 (S1), 0?DSLo?0.4 (L1), 2.1?DSLo+DSSh?2.8 (T1).
    Type: Application
    Filed: May 7, 2021
    Publication date: June 8, 2023
    Applicants: NEC CORPORATION, UNIVERSITY OF TSUKUBA
    Inventors: Midori SHIMURA, Shukichi TANAKA, Masatoshi IJI
  • Patent number: 11572416
    Abstract: A cellulose resin wherein a hydrogen atom of a hydroxy group of cellulose is substituted with a long-chain component which is a linear saturated aliphatic acyl group having 14 or more carbon atoms and a short-chain component which is an acyl group (propionyl group) having 3 carbon atoms, the degree of substitution with the long-chain component (DSLo) and the degree of substitution with the short-chain component (DSSh) satisfy the following conditional expressions (1) and (2): DSLo+DSSh?2.1??(1) 4?DSSh/DSLo?12??(2), the Izod impact strength is 5.0 kJ/m2 or more, and the MFR (melt flow rate at 200° C. and under a load of 5 kg) is 10 g/10 min or more.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: February 7, 2023
    Assignee: NEC CORPORATION
    Inventors: Shukichi Tanaka, Midori Shimura
  • Patent number: 11505681
    Abstract: A cellulose resin composition comprising a cellulose derivative and a lubricant, wherein the cellulose derivative is an acylated cellulose obtained by substituting at least a part of hydrogen atoms of hydroxy groups of a cellulose with an acyl group having 2 to 4 carbon atoms, and the content of the lubricant is in the range of 0.1 to 10% by mass. A cellulose resin composition capable of forming a molded body having a high-quality appearance and scratch resistance is provided.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: November 22, 2022
    Assignee: NEC CORPORATION
    Inventors: Kiyohiko Toyama, Mina Shimizu, Masatoshi Iji, Midori Shimura, Shukichi Tanaka, Toshie Miyamoto
  • Patent number: 11434350
    Abstract: A cellulose resin composition comprising a cellulose derivative (A) and a lubricant (B), wherein the cellulose derivative (A) is a cellulose derivative obtained by substituting at least a part of hydrogen atoms of hydroxyl groups of a cellulose with a short-chain organic group having 2 to 4 carbon atoms and a long-chain organic group having 8 to 30 carbon atoms with specific degrees of substitution; the lubricant (B) is at least one selected from the group consisting of a urea compound (B1) having a urea group (—NH—C(?O)—NH—) and an acyclic aliphatic group having 6 to 33 carbon atoms, an amide compound (B2) having an amide group (—C(?O)—NH—) and an acyclic aliphatic group having 6 to 33 carbon atoms, a fatty acid metal salt (B3), and a silicone-based lubricant (B4); and a content of the lubricant (B) is in a range of 0.1 to 10% by mass. A cellulose resin composition capable of forming a molded body having a high-quality appearance and scratch resistance is provided.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: September 6, 2022
    Assignee: NEC CORPORATION
    Inventors: Midori Shimura, Shukichi Tanaka, Kiyohiko Toyama, Masatoshi Iji, Mina Shimizu, Toshie Miyamoto
  • Publication number: 20220243033
    Abstract: The present invention provides a cellulose resin composition capable of forming a molded body having high-quality appearance and scratch resistance. A cellulosic resin composition including a cellulose derivative, a lubricant, and a plasticizer, wherein the cellulose derivative is an acylated cellulose obtained by substituting at least a part of hydrogen atoms of hydroxy groups of a cellulose with an acetyl group, the content of the lubricant is in the range of 0.1 to 10% by mass, the plasticizer comprises an adipic acid mixed ester composed of adipic acid and diethylene glycol monomethyl ether and benzyl alcohol, and the content of the plasticizer is in the range of 5 to 70 parts by weight with respect to 100 parts by weight of the cellulose derivative (A).
    Type: Application
    Filed: June 12, 2020
    Publication date: August 4, 2022
    Applicant: NEC Corporation
    Inventors: Shukichi TANAKA, Kiyohiko TOYAMA, Midori SHIMURA, Toshie MIYAMOTO
  • Publication number: 20220235202
    Abstract: The present invention provides a cellulose resin composition capable of forming a molded body having high-quality appearance and scratch resistance. A cellulose resin composition including a cellulose derivative, a lubricant, a plasticizer, and a colorant, wherein the cellulose derivative is an acylated cellulose obtained by substituting at least a part of hydrogen atoms of hydroxy groups of a cellulose with an acyl group having 2 to 4 carbon atoms, the content of the lubricant is in a range of 0.1 to 10% by mass, the plasticizer is an aromatic plasticizer, the content of the plasticizer is in a range of 0.1 to 100 parts by mass per 100 parts by mass of the cellulose derivative, and the content of the colorant is in a range of 0.01 to 10% by mass.
    Type: Application
    Filed: June 12, 2020
    Publication date: July 28, 2022
    Applicant: NEC Corporation
    Inventors: Kiyohiko TOYAMA, Shukichi TANAKA, Midori SHIMURA, Toshie MIYAMOTO
  • Publication number: 20210340282
    Abstract: A paramylon-based resin having a weight-average molecular weight of paramylon in a range of 70000 to 140000, and formed by substituting hydrogen atoms of hydroxy groups of a paramylon with a long-chain component being a linear saturated aliphatic acyl group having 14 or more carbon atoms and a short-chain component being an acyl group (acetyl group or/and propionyl group) having 2 or 3 carbon atoms, wherein a degree of substitution with the long-chain component (DSLo) and a degree of substitution with the short-chain component (DSSh) satisfy the following conditional expressions (1) and (2), Izod impact strength is 5.0 kJ/m2 or more, and an MFR (melt flow rate at 210° C. and under a load of 5 kg) is 2 g/10 min or more. To provide a paramylon-based resin excellent in mechanical characteristics and thermoplasticity. 2.2?DSLo+DSSh?2.
    Type: Application
    Filed: July 10, 2019
    Publication date: November 4, 2021
    Applicants: NEC CORPORATION, UNIVERSITY OF TSUKUBA
    Inventors: Midori SHIMURA, Shukichi TANAKA, Toshie MIYAMOTO, Masatoshi IJI
  • Patent number: 11028186
    Abstract: A cellulose derivative obtained by substituting at least part of hydrogen atoms of hydroxy groups of a cellulose with an acyl group having 2 to 4 carbon atoms, a long-chain organic group having 7 or more carbon atoms and a high refractive-index organic group.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: June 8, 2021
    Assignee: NEC CORPORATION
    Inventors: Kiyohiko Toyama, Masatoshi Iji, Midori Shimura, Shukichi Tanaka
  • Patent number: 10982009
    Abstract: To provide a cellulose derivative excellent in thermoplasticity, water resistance and strength (elastic modulus, impact strength), a cellulose derivative, which is obtained by introducing a short-chain organic group (acetyl group), a medium-chain organic group having 3 to 5 carbon atoms and a long-chain organic group having 6 to 30 carbon atoms at the following substitution degrees DSs into a cellulose, is used: Short-chain organic group: 0.7?DSSH?1.5; Medium-chain organic group: 0.5?DSME?2.0; Long-chain organic group: 0.1?DSLO<0.5; and 2.4?DSSH+DSME+DSLO?3.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: April 20, 2021
    Assignee: NEC CORPORATION
    Inventors: Midori Shimura, Shukichi Tanaka, Kiyohiko Toyama, Masatoshi Iji
  • Publication number: 20210070966
    Abstract: A cellulose resin composition comprising a cellulose derivative (A) and a lubricant (B), wherein the cellulose derivative (A) is a cellulose derivative obtained by substituting at least a part of hydrogen atoms of hydroxyl groups of a cellulose with a short-chain organic group having 2 to 4 carbon atoms and a long-chain organic group having 8 to 30 carbon atoms with specific degrees of substitution; the lubricant (B) is at least one selected from the group consisting of a urea compound (B1) having a urea group (—NH—C(?O)—NH—) and an acyclic aliphatic group having 6 to 33 carbon atoms, an amide compound (B2) having an amide group (—C(?O)—NH—) and an acyclic aliphatic group having 6 to 33 carbon atoms, a fatty acid metal salt (B3), and a silicone-based lubricant (B4); and a content of the lubricant (B) is in a range of 0.1 to 10% by mass. A cellulose resin composition capable of forming a molded body having a high-quality appearance and scratch resistance is provided.
    Type: Application
    Filed: December 17, 2018
    Publication date: March 11, 2021
    Applicant: NEC CORPORATION
    Inventors: Midori SHIMURA, Shukichi TANAKA, Kiyohiko TOYAMA, Masatoshi IJI, Mina SHIMIZU, Toshie MIYAMOTO
  • Patent number: 10934368
    Abstract: A cellulose resin formed by substituting hydrogen atoms of hydroxy groups of a cellulose with a long-chain component being a linear saturated aliphatic acyl group having 14 or more carbon atoms and a short-chain component being an acyl group having 2 or 3 carbon atoms, in which a degree of substitution with the long-chain component (DSLo) and a degree of substitution with the short-chain component (DSSh) satisfy conditional expressions (1) and (2) shown below: DSLo+DSSh?2.1??(1) 4?DSSh/DSLo?12??(2).
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: March 2, 2021
    Assignee: NEC CORPORATION
    Inventors: Shukichi Tanaka, Midori Shimura, Masatoshi Iji
  • Publication number: 20200385548
    Abstract: A cellulose resin composition comprising a cellulose derivative and a lubricant, wherein the cellulose derivative is an acylated cellulose obtained by substituting at least a part of hydrogen atoms of hydroxy groups of a cellulose with an acyl group having 2 to 4 carbon atoms, and the content of the lubricant is in the range of 0.1 to 10% by mass. A cellulose resin composition capable of forming a molded body having a high-quality appearance and scratch resistance is provided.
    Type: Application
    Filed: December 17, 2018
    Publication date: December 10, 2020
    Applicant: NEC CORPORATION
    Inventors: Kiyohiko TOYAMA, Mina SHIMIZU, Masatoshi IJI, Midori SHIMURA, Shukichi TANAKA, Toshie MIYAMOTO
  • Publication number: 20200181289
    Abstract: A cellulose resin wherein a hydrogen atom of a hydroxy group of cellulose is substituted with a long-chain component which is a linear saturated aliphatic acyl group having 14 or more carbon atoms and a short-chain component which is an acyl group (propionyl group) having 3 carbon atoms, the degree of substitution with the long-chain component (DSLo) and the degree of substitution with the short-chain component (DSSh) satisfy the following conditional expressions (1) and (2): DSLo+DSSh?2.1??(1) 4?DSSh/DSLo?12??(2), the Izod impact strength is 5.0 kJ/m2 or more, and the MFR (melt flow rate at 200° C. and under a load of 5 kg) is 10 g/10 min or more.
    Type: Application
    Filed: May 31, 2018
    Publication date: June 11, 2020
    Applicant: NEC CORPORATION
    Inventors: Shukichi TANAKA, Midori SHIMURA
  • Publication number: 20190330379
    Abstract: A cellulose derivative obtained by substituting at least part of hydrogen atoms of hydroxy groups of a cellulose with an acyl group having 2 to 4 carbon atoms, a long-chain organic group having 7 or more carbon atoms and a high refractive-index organic group.
    Type: Application
    Filed: June 15, 2017
    Publication date: October 31, 2019
    Applicant: NEC CORPORATION
    Inventors: Kiyohiko TOYAMA, Masatoshi IJI, Midori SHIMURA, Shukichi TANAKA
  • Patent number: 10431825
    Abstract: The present invention relates to a negative electrode for a lithium ion secondary battery comprising an oxetane compound represented by a predetermined formula in an amount within a range of 0.001% by mass or more and 5.0% by mass or less based on the amount of a negative electrode active material, and a lithium ion secondary battery using the same.
    Type: Grant
    Filed: August 4, 2014
    Date of Patent: October 1, 2019
    Assignee: NEC CORPORATION
    Inventors: Midori Shimura, Noriyuki Tamura, Kentaro Nakahara
  • Patent number: 10290894
    Abstract: An exemplary embodiment of the present invention is a secondary battery which comprises a negative electrode and a battery electrolyte liquid comprising a supporting salt and a non-aqueous electrolyte solvent; wherein the negative electrode is obtained by pre-forming a SEI coating film on a negative electrode structure which is formed by binding a negative electrode active substance comprising a metal (a). that can be alloyed with lithium, a metal oxide (b) that can absorb and desorb lithium ion and a carbon material (c) that can absorb and desorb lithium ion, to a negative electrode current collector with a negative electrode binder, and wherein the non-aqueous electrolyte solvent contains at least an ionic liquid.
    Type: Grant
    Filed: June 23, 2011
    Date of Patent: May 14, 2019
    Assignee: NEC CORPORATION
    Inventors: Kazuaki Matsumoto, Daisuke Kawasaki, Masahiro Suguro, Midori Shimura, Yoko Hashizume
  • Publication number: 20190010251
    Abstract: A cellulose resin formed by substituting hydrogen atoms of hydroxy groups of a cellulose with a long-chain component being a linear saturated aliphatic acyl group having 14 or more carbon atoms and a short-chain component being an acyl group having 2 or 3 carbon atoms, in which a degree of substitution with the long-chain component (DSLo) and a degree of substitution with the short-chain component (DSSh) satisfy conditional expressions (1) and (2) shown below: DSLo+DSSh?2.1??(1) 4?DSSh/DSLo?12??(2).
    Type: Application
    Filed: December 9, 2016
    Publication date: January 10, 2019
    Applicant: NEC CORPORATION
    Inventors: Shukichi TANAKA, Midori SHIMURA, Masatoshi IJI
  • Publication number: 20180342769
    Abstract: Provided is a lithium secondary cell which has high capacity, suppresses deterioration in capacity and improves cycle characteristics particularly when used in high-temperature environments and has long lifespan. Provided is a lithium secondary cell including a positive electrode active material layer containing a positive electrode active material, a negative electrode active material layer containing a negative electrode active material and an electrolytic solution for immersing the positive and negative electrode active material layers, wherein the electrolytic solution contains at least one certain ester compound.
    Type: Application
    Filed: July 31, 2018
    Publication date: November 29, 2018
    Applicant: NEC Corporation
    Inventors: Masahiro SUGURO, Midori SHIMURA
  • Publication number: 20180291117
    Abstract: To provide a cellulose derivative excellent in thermoplasticity, water resistance and strength (elastic modulus, impact strength), a cellulose derivative, which is obtained by introducing a short-chain organic group (acetyl group), a medium-chain organic group having 3 to 5 carbon atoms and a long-chain organic group having 6 to 30 carbon atoms at the following substitution degrees DSs into a cellulose, is used: Short-chain organic group: 0.7?DSSH?1.5; Medium-chain organic group: 0.5?DSME?2.0; Long-chain organic group: 0.1?DSLO<0.5; and 2.4?DSSH+DSME+DSLO?3.
    Type: Application
    Filed: August 29, 2016
    Publication date: October 11, 2018
    Applicant: NEC CORPORATION
    Inventors: Midori SHIMURA, Shukichi TANAKA, Kiyohiko TOYAMA, Masatoshi IJI