Patents by Inventor Yasuo Ebina

Yasuo Ebina 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: 20200271740
    Abstract: Provided is an orientation agent for NMR spectroscopy containing a nanosheet which is easy to prepare, excellent in handleability, economic efficiency and versatility, and is capable of being stably aligned to the magnetic field. The nanosheet is coated with a compound having a molecular weight of 1,500 or more and containing 35 or more functional groups per molecule, said functional groups being composed of at least one selected from a hydroxy group, an amino group, an amide group, a carbonyl group, a carboxyl group, a sulfo group, a phosphate group, an imidazole group and a guanidine group.
    Type: Application
    Filed: May 22, 2018
    Publication date: August 27, 2020
    Applicants: RIKEN, NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Noriyuki UCHIDA, Yasuhiro ISHIDA, Kento UENO, Zhifang SUN, Qiaochu LI, Yoshiki YAMAGUCHI, Takayoshi SASAKI, Yasuo EBINA, Takuzo AIDA
  • Patent number: 9545615
    Abstract: Provided is a water-swelling layered double hydroxide characterized by having an organic sulfonic acid anion (A?) between layers, and by being represented by the below mentioned general formula (1): QZR(OH)2(Z+1)(A?)(1?y)(Xn?)y/n.mH2O . . . (1). Here, Q is a divalent metal, R is a trivalent metal, A? is an organic sulfonic acid anion, m is a real number greater than 0, and z is in the range of 1.8?z?4.2. Xn? is the n-valent anion remaining without A? substitution, n is 1 or 2, y represents the remaining portion of Xn?, and 0?y<0.4.
    Type: Grant
    Filed: January 18, 2012
    Date of Patent: January 17, 2017
    Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Nobuo Iyi, Yasuo Ebina, Takayoshi Sasaki
  • Patent number: 9187339
    Abstract: Disclosed is an organic dispersion comprising a flaky titanium oxide particle having a high crystallinity and high light permeability contained in an organic solvent. The dispersion can be prepared by a method comprising preparing an aqueous dispersion of a flaky titanium oxide particle containing an organic cation, centrifuging the aqueous dispersion to produce a precipitate, and adding the precipitate to an organic solvent, or a method comprising lyophilizing the aqueous dispersion to produce a lyophilized material and mixing the lyophilized material to an organic solvent. When the organic dispersion is used, it becomes possible to form a film comprising a monolayer of a titanium oxide nanosheet densely arranged therein by such a simple manner that the dispersion is coated on a base material and drying the dispersion. The film thus produced has a photocatalytic activity and a super-hydrophilic property.
    Type: Grant
    Filed: September 4, 2008
    Date of Patent: November 17, 2015
    Assignees: ISHIHARA SANGYO KAISHA, LTD., INDEPENDENT ADMINISTRATIVE INSTITUTION NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Takayoshi Sasaki, Yasuo Ebina, Hirofumi Taniguchi, Yusuke Uesusuki
  • Patent number: 9082551
    Abstract: A high dielectric nanosheet laminate is produced by laminating nanosheets, each of which has a thickness of 10 nm or less and is formed of an oxide that has a perovskite structure wherein at least four NbO6 octahedrons, TaO6 octahedrons or TiO6 octahedrons are included in a unit lattice. Consequently, the high dielectric nanosheet laminate is capable of achieving a high dielectric constant and a satisfactory insulation property, which are preferable for high dielectric nanosheet multilayer capacitors or the like, at the same time even if formed very thin.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: July 14, 2015
    Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Minoru Osada, Yasuo Ebina, Takayoshi Sasaki
  • Patent number: 8828488
    Abstract: To provide a method for producing a thin film consisting of nanosheet monolayer film(s) and use of the thin film obtained thereby. The method for producing a thin film consisting of nanosheet monolayer film(s) by a spin coat method according to the invention comprises a step for preparing an organic solvent sol formed by allowing nanosheets obtained by the exfoliation of an inorganic layered compound to be dispersed in an organic solvent; and a step for dropping the organic solvent sol onto a substrate and rotating the substrate using a spin coater. Preferably, the nanosheet size, the organic solvent sol concentration and the spin coater rotation speed are controlled.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: September 9, 2014
    Assignee: National Institute For Materials Science
    Inventors: Takayoshi Sasaki, Kazuko Saruwatari, Kazuaki Matsuba, Kousyo Akatsuka, Yasuo Ebina, Minoru Osada
  • Publication number: 20140150966
    Abstract: A high dielectric nanosheet laminate is produced by laminating nanosheets, each of which has a thickness of 10 nm or less and is formed of an oxide that has a perovskite structure wherein at least four NbO6 octahedrons, TaO6 octahedrons or TiO6 octahedrons are included in a unit lattice. Consequently, the high dielectric nanosheet laminate is capable of achieving a high dielectric constant and a satisfactory insulation property, which are preferable for high dielectric nanosheet multilayer capacitors or the like, at the same time even if formed very thin.
    Type: Application
    Filed: May 18, 2012
    Publication date: June 5, 2014
    Inventors: Minoru Osada, Yasuo Ebina, Takayoshi Sasaki
  • Publication number: 20130313476
    Abstract: Provided is a water-swelling layered double hydroxide characterized by having an organic sulfonic acid anion (A?) between layers, and by being represented by the belowmentioned general formula (1): QZR(OH)2(Z+1)(A?)(1-y)(Xn?)y/n.mH2O . . . (1). Here, Q is a divalent metal, R is a trivalent metal, A? is an organic sulfonic acid anion, m is a real number greater than 0, and z is in the range of 1.8?z?4.2. Xn? is the n-valent anion remaining without A? substitution, n is 1 or 2, y represents the remaining portion of Xn?, and 0?y<0.4.
    Type: Application
    Filed: January 18, 2012
    Publication date: November 28, 2013
    Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Nobuo Iyi, Yasuo Ebina, Takayoshi Sasaki
  • Publication number: 20130101829
    Abstract: To provide a method for producing a thin film consisting of nanosheet monolayer film(s) and use of the thin film obtained thereby. The method for producing a thin film consisting of nanosheet monolayer film(s) by a spin coat method according to the invention comprises a step for preparing an organic solvent sol formed by allowing nanosheets obtained by the exfoliation of an inorganic layered compound to be dispersed in an organic solvent; and a step for dropping the organic solvent sol onto a substrate and rotating the substrate using a spin coater. Preferably, the nanosheet size, the organic solvent sol concentration and the spin coater rotation speed are controlled.
    Type: Application
    Filed: August 22, 2012
    Publication date: April 25, 2013
    Inventors: Takayoshi SASAKI, Kazuko SARUWATARI, Kazuaki MATSUBA, Kousyo AKATSUKA, Yasuo EBINA, Minoru OSADA
  • Patent number: 8184426
    Abstract: Provided is a dielectric element comprising a dielectric thin film formed of a layer of perovskite nanosheets. The dielectric element has the advantages of inherent properties and high-level texture and structure controllability of the perovskite nanosheets, therefore realizing both a high dielectric constant and good insulating properties in a nano-region.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: May 22, 2012
    Assignee: National Institute for Materials Science
    Inventors: Minoru Osada, Yasuo Ebina, Takayoshi Sasaki
  • Publication number: 20100226067
    Abstract: Provided is a dielectric element comprising a dielectric thin film formed of a layer of perovskite nanosheets. The dielectric element has the advantages of inherent properties and high-level texture and structure controllability of the perovskite nanosheets, therefore realizing both a high dielectric constant and good insulating properties in a nano-region.
    Type: Application
    Filed: December 20, 2007
    Publication date: September 9, 2010
    Inventors: Minoru Osada, Yasuo Ebina, Takayoshi Sasaki
  • Publication number: 20100221518
    Abstract: Disclosed is an organic dispersion comprising a flaky titanium oxide particle having a high crystallinity and high light permeability contained in an organic solvent. The dispersion can be prepared by a method comprising preparing an aqueous dispersion of a flaky titanium oxide particle containing an organic cation, centrifuging the aqueous dispersion to produce a precipitate, and adding the precipitate to an organic solvent, or a method comprising lyophilizing the aqueous dispersion to produce a lyophilized material and mixing the lyophilized material to an organic solvent. When the organic dispersion is used, it becomes possible to form a film comprising a monolayer of a titanium oxide nanosheet densely arranged therein by such a simple manner that the dispersion is coated on a base material and drying the dispersion. The film thus produced has a photocatalytic activity and a super-hydrophilic property.
    Type: Application
    Filed: September 4, 2008
    Publication date: September 2, 2010
    Inventors: Takayoshi Sasaki, Yasuo Ebina, Hirofumi Taniguchi, Yusuke Uesusuki
  • Patent number: 6838160
    Abstract: A multilayer ultrathin film which comprises layers of a polymer and layers of lamina particles alternately assembled, said lamina particles are obtained by exfoliating microcrystals of a layered titanium oxide.
    Type: Grant
    Filed: January 29, 2001
    Date of Patent: January 4, 2005
    Assignee: National Institute for Research in Inorganic Materials
    Inventors: Takayoshi Sasaki, Yasuo Ebina, Mamoru Watanabe
  • Publication number: 20010024718
    Abstract: A multilayer ultrathin film which comprises layers of a polymer and layers of lamina particles alternately assembled, said lamina particles are obtained by exfoliating microcrystals of a layered titanium oxide.
    Type: Application
    Filed: January 29, 2001
    Publication date: September 27, 2001
    Applicant: National Institute for Research in Inorganic Materials
    Inventors: Takayoshi Sasaki, Yasuo Ebina, Mamoru Watanabe