Patents by Inventor Masako Yokoyama

Masako Yokoyama 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: 20240363144
    Abstract: A compound is represented by Formula (1) below, in Formula (1) above, R1 to R22 each independently contain at least one atom selected from the group consisting of H, B, C, N, O, F, Si, P, S, Cl, I, and Br, and L1 and L2 each independently represent a single bond or —C?C—.
    Type: Application
    Filed: July 9, 2024
    Publication date: October 31, 2024
    Inventors: MASAKO YOKOYAMA, KOTA ANDO, HIDEKAZU ARASE
  • Patent number: 12112780
    Abstract: A recording medium includes a recording layer. The recording layer includes an aliphatic polymer, and a multiphoton absorption compound containing at least one bond selected from the group consisting of a carbon-carbon double bond, a carbon-nitrogen double bond, and a carbon-carbon triple bond, and having a multiphoton absorption characteristic. When the thickness of the recording layer is 100 ?m, the transmittance of the recording layer in the thickness direction with respect to light having a wavelength of 405 nm is greater than or equal to 80%.
    Type: Grant
    Filed: November 10, 2023
    Date of Patent: October 8, 2024
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kota Ando, Masako Yokoyama, Naoya Sakata, Kenji Tagashira, Hidekazu Arase
  • Publication number: 20240272127
    Abstract: It is an object of the present invention to provide a gas chromatography analytical method in which a purity of high-purity ethylene carbonate can be accurately analyzed by gas chromatography analysis, and the object can be achieved by a gas chromatography analytical method based on an ethylene carbonate split injection technique, comprising injecting ethylene carbonate to be analyzed into a gas chromatography analyzer; vaporizing the injected ethylene carbonate in a single taper liner not packed with wool; introducing a part of the vaporized ethylene carbonate into a capillary column with an inert gas flowing and allowing the ethylene carbonate to pass through the capillary column; and detecting the ethylene carbonate having passed through the capillary column with a detector.
    Type: Application
    Filed: March 16, 2022
    Publication date: August 15, 2024
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventor: Masako YOKOYAMA
  • Publication number: 20240119965
    Abstract: A recording medium includes a recording layer. The recording layer includes an aliphatic polymer, and a multiphoton absorption compound containing at least one bond selected from the group consisting of a carbon-carbon double bond, a carbon-nitrogen double bond, and a carbon-carbon triple bond, and having a multiphoton absorption characteristic. When the thickness of the recording layer is 100 ?m, the transmittance of the recording layer in the thickness direction with respect to light having a wavelength of 405 nm is greater than or equal to 80%.
    Type: Application
    Filed: November 10, 2023
    Publication date: April 11, 2024
    Inventors: KOTA ANDO, MASAKO YOKOYAMA, NAOYA SAKATA, KENJI TAGASHIRA, HIDEKAZU ARASE
  • Publication number: 20240069408
    Abstract: A light absorption material includes a compound represented by the following formula (1) as a main component: In the formula (1), R1 to R14 each independently include at least one atom selected from the group consisting of H, C, N, O, F, P, S, Cl, I, and Br, and n is an integer greater than or equal to 2.
    Type: Application
    Filed: October 24, 2023
    Publication date: February 29, 2024
    Inventors: SHINJI ANDO, MASAKO YOKOYAMA, KOTA ANDO
  • Publication number: 20240062782
    Abstract: A nonlinear light absorption material includes a compound represented by the following formula (1) as a main component: in the formula (1), R1 to R6 are each independently a hydrocarbon group.
    Type: Application
    Filed: October 24, 2023
    Publication date: February 22, 2024
    Inventors: MASAKO YOKOYAMA, NAOYA SAKATA, KOTA ANDO, TERUHIKO SAITO, HIDEKAZU ARASE
  • Publication number: 20240062780
    Abstract: A nonlinear light absorption material includes a compound having a nonlinear light absorption property at a wavelength of 390 nm or more and 420 nm or less and represented by the formula (1) as a main component: in the formula (1), X is an oxygen atom.
    Type: Application
    Filed: October 24, 2023
    Publication date: February 22, 2024
    Inventors: MASAKO YOKOYAMA, KOTA ANDO, TERUHIKO SAITO, HIDEKAZU ARASE
  • Publication number: 20240055022
    Abstract: A nonlinear light absorption material includes a compound represented by the following formula (1) as a main component: in the formula (1), R1 to R10 are each independently a hydrogen atom, a halogen atom, a saturated hydrocarbon group, a halogenated alkyl group, an unsaturated hydrocarbon group, a hydroxyl group, a carboxyl group, an alkoxycarbonyl group, an aldehyde group, an acyl group, an amide group, a nitrile group, an alkoxy group, an acyloxy group, a thiol group, an alkylthio group, a sulfonate group, an acylthio group, an alkylsulfonyl group, a sulfonamide group, a primary amino group, a secondary amino group, a tertiary amino group, or a nitro group.
    Type: Application
    Filed: October 18, 2023
    Publication date: February 15, 2024
    Inventors: MASAKO YOKOYAMA, TERUHIKO SAITO, KOTA ANDO, HIDEKAZU ARASE
  • Patent number: 11901593
    Abstract: A charge/discharge method of an air battery is a charge/discharge method of an air battery including a positive electrode, a negative electrode, and a nonaqueous electrolyte liquid containing a nonaqueous solvent and a lithium salt dissolved in the nonaqueous solvent, the nonaqueous electrolyte liquid being interposed between the positive electrode and the negative electrode, the charge/discharge method includes: discharging the air battery; and supplying a charging liquid different from the nonaqueous electrolyte liquid from the outside to the inside of the air battery so that a discharge product generated by the discharging is desorbed from the positive electrode while being in the form of a solid.
    Type: Grant
    Filed: July 19, 2021
    Date of Patent: February 13, 2024
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Masako Yokoyama, Masahisa Fujimoto, Mitsuhiro Hibino
  • Publication number: 20230113096
    Abstract: A nonlinear optical material is represented by the following formula (1). At least one selected from the group consisting of R1 to R5, at least one selected from the group consisting of R6 to R10, and at least one selected from the group consisting of R11 to R15 are represented by the following formula (2).
    Type: Application
    Filed: November 1, 2022
    Publication date: April 13, 2023
    Inventors: NAOYA SAKATA, KENJI TAGASHIRA, MASAKO YOKOYAMA, KOTA ANDO
  • Publication number: 20230109287
    Abstract: A non-linear optical material is represented by formula (1) below. In formula (1), L1 to L3 are each independently represented by formula (2) or (3) below.
    Type: Application
    Filed: November 14, 2022
    Publication date: April 6, 2023
    Inventors: MASAKO YOKOYAMA, NAOYA SAKATA, KENJI TAGASHIRA, KOTA ANDO
  • Publication number: 20230088916
    Abstract: A nonlinear optical material is represented by the following formula (1).
    Type: Application
    Filed: November 1, 2022
    Publication date: March 23, 2023
    Inventors: NAOYA SAKATA, KENJI TAGASHIRA, MASAKO YOKOYAMA, KOTA ANDO
  • Publication number: 20230028064
    Abstract: A light-absorbing material includes a compound represented by the formula (1) below.
    Type: Application
    Filed: September 1, 2022
    Publication date: January 26, 2023
    Inventors: MASAKO YOKOYAMA, NAOYA SAKATA, KENJI TAGASHIRA, KOTA ANDO
  • Publication number: 20210344065
    Abstract: A charge/discharge method of an air battery is a charge/discharge method of an air battery including a positive electrode, a negative electrode, and a nonaqueous electrolyte liquid containing a nonaqueous solvent and a lithium salt dissolved in the nonaqueous solvent, the nonaqueous electrolyte liquid being interposed between the positive electrode and the negative electrode, the charge/discharge method includes: discharging the air battery; and supplying a charging liquid different from the nonaqueous electrolyte liquid from the outside to the inside of the air battery so that a discharge product generated by the discharging is desorbed from the positive electrode while being in the form of a solid.
    Type: Application
    Filed: July 19, 2021
    Publication date: November 4, 2021
    Inventors: MASAKO YOKOYAMA, MASAHISA FUJIMOTO, MITSUHIRO HIBINO
  • Publication number: 20210343997
    Abstract: A primary battery includes: a positive electrode including a positive electrode collector composed of a porous conductor, and a porous positive electrode layer disposed on the positive electrode collector, oxygen taken from outside of the primary battery through the positive electrode collector being allowed to diffuse into the porous positive electrode layer; a negative electrode including a negative electrode collector composed of a porous conductor, and a porous negative electrode layer disposed on the negative electrode collector, the porous negative electrode layer including lithium nitride composed of lithium and nitrogen, nitrogen generated during discharge being allowed to diffuse into the porous negative electrode layer; and a nonaqueous electrolytic solution disposed between the positive electrode and the negative electrode, the nonaqueous electrolytic solution containing a lithium salt.
    Type: Application
    Filed: July 16, 2021
    Publication date: November 4, 2021
    Inventors: GO TEI, KOICHI SAWADA, MITSUHIRO HIBINO, MASAKO YOKOYAMA, MASAHISA FUJIMOTO, YU OTSUKA
  • Publication number: 20210344066
    Abstract: A lithium air battery includes a negative electrode, a positive electrode, and an electrolyte. The electrolyte contains a compound represented by the following formula. In this formula, R1, R2, and R3 each independently represent a fluorinated alkyl group having 1 to 5 carbon atoms.
    Type: Application
    Filed: July 19, 2021
    Publication date: November 4, 2021
    Inventor: MASAKO YOKOYAMA
  • Patent number: 8222348
    Abstract: An epoxy silicon, which comprises at least a compound represented by the following general formula (1), and a compound represented by the following general formula (2); and which is represented by an average composition formula (3), wherein a value of [g/(a+b+c+d+e+f+g+h+i+j)] falls within a range of 0.020 or less.
    Type: Grant
    Filed: April 15, 2008
    Date of Patent: July 17, 2012
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Yoshito Kuroda, Masako Yokoyama, Hiroji Oda
  • Publication number: 20100120975
    Abstract: An epoxy silicon, which comprises at least a compound represented by the following general formula (1), and a compound represented by the following general formula (2); and which is represented by an average composition formula (3), wherein a value of [g/(a+b+c+d+e+f+g+h+i+j)] falls within a range of 0.020 or less.
    Type: Application
    Filed: April 15, 2008
    Publication date: May 13, 2010
    Applicant: Asahi Kasei Chemicals Corporation
    Inventors: Yoshito Kuroda, Masako Yokoyama, Hiroji Oda
  • Patent number: 7202326
    Abstract: A glycolic acid copolymer comprising (a) 80 to less than 95% by mole of glycolic acid monomer units, (b) 5.0 to 20.0% by mole of non-glycolic, hydroxycarboxylic acid monomer units, and (c) 0 to 0.10% by mole of diglycolic acid monomer units, the non-glycolic, hydroxycarboxylic acid monomer units (b) constituting a plurality of segments each independently consisting of at least one monomer unit (b), wherein the segments have an average chain length of from 1.00 to 1.50 in terms of the average number of monomer unit or units (b), the total of the components (a), (b) and (c) being 100% by mole, the glycolic acid copolymer having a weight average molecular weight of 50,000 or more.
    Type: Grant
    Filed: September 24, 2003
    Date of Patent: April 10, 2007
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Yoshito Kuroda, Harumi Watanabe, Masako Yokoyama
  • Publication number: 20050288479
    Abstract: A glycolic acid copolymer comprising (a) 80 to less than 95% by mole of glycolic acid monomer units, (b) 5.0 to 20.0% by mole of non-glycolic, hydroxycarboxylic acid monomer units, and (c) 0 to 0.10% by mole of diglycolic acid monomer units, the non-glycolic, hydroxycarboxylic acid monomer units (b) constituting a plurality of segments each independently consisting of at least one monomer unit (b), wherein the segments have an average chain length of from 1.00 to 1.50 in terms of the average number of monomer unit or units (b), the total of the components (a), (b) and (c) being 100% by mole, the glycolic acid copolymer having a weight average molecular weight of 50,000 or more.
    Type: Application
    Filed: September 24, 2003
    Publication date: December 29, 2005
    Applicant: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Yoshito Kuroda, Harumi Watanabe, Masako Yokoyama