Patents by Inventor Kentaro Masui

Kentaro Masui 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: 20210325023
    Abstract: A device including a phosphor layer having a plurality of holes or pockets arranged within the phosphor layer to reduce lateral light transmission. The phosphor layer can be sized and positioned to extend over a plurality of LED emitter pixels.
    Type: Application
    Filed: June 30, 2021
    Publication date: October 21, 2021
    Applicant: Lumileds LLC
    Inventors: Kentaro SHIMIZU, Venkata Ananth TAMMA, Hisashi MASUI
  • Publication number: 20210284903
    Abstract: A wavelength conversion sheet contains a condensed silicone resin cured product, and a wavelength conversion material. The wavelength conversion sheet has a storage modulus at 25° C. of 2 GPa or more and 10 GPa or less, and a storage modulus at 150° C. of 0.1 GPa or more and 5 GPa or less. The content of the condensed silicone resin cured product is 5% by mass or more and 80% by mass or less, to the total content of the condensed silicone resin cured product and the wavelength conversion material.
    Type: Application
    Filed: September 4, 2017
    Publication date: September 16, 2021
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Kentaro MASUI, Atsunori DOI
  • Publication number: 20210284843
    Abstract: A silicone resin composition contains a silicone resin and a solvent. The silicone resin composition is a liquid composition having a viscosity of 100 to 50000 mPa·s at 25° C. The silicone resin contains a structural unit represented by the following formula (A3), and the total content of a structural unit represented by the following formula (A1), a structural unit represented by the following formula (A1?), a structural unit represented by the following formula (A2) and the structural unit represented by the following formula (A3) contained in the silicone resin to the total content of all structural units contained in the silicone resin is 80% by mole or more, wherein R1 represents an alkyl group or an aryl group; and R2 represents an alkoxy group or a hydroxyl group.
    Type: Application
    Filed: September 4, 2017
    Publication date: September 16, 2021
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Kentaro MASUI, Atsunori DOI
  • Publication number: 20190225879
    Abstract: A cured product includes a condensed silicone resin cured product and satisfies (1) and (2): (1) In a solid state 29Si-nuclear magnetic resonance spectrum of a condensed silicone resin cured product, there is a peak assigned to silicon atoms of a T unit (silicon atoms bonded to three oxygen atoms); and (2) In a Kratky Plot, from a wavenumber qMax of a maximum peak position in the range of wavenumbers of 0.01 to 0.17 ??1 of the X-ray, a parameter dMax obtained by formula (A) is 170 ? or less.
    Type: Application
    Filed: September 4, 2017
    Publication date: July 25, 2019
    Applicant: Sumitomo Chemical Company, Limited
    Inventors: Atsunori DOI, Toshihiko NISHIDA, Kentaro MASUI
  • Patent number: 10256378
    Abstract: An LED device is provided which includes a substrate, an LED element disposed on the substrate, an inorganic glass molded body disposed at a position where all or a part of the light which is emitted from the LED element passes through, a first bonding portion that is provided in contact with the substrate and bonds the substrate and the inorganic glass molded body, and a second bonding portion provided between the LED element and the inorganic glass molded body. The LED element is shielded from the outside air by the substrate, the inorganic glass molded body and the first bonding portion. A material which forms the second bonding portion contains a condensation polymerization-type silicone resin. A distance between the LED element and the inorganic glass molded body is 0.1 mm or less.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: April 9, 2019
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Atsunori Doi, Katsuhiko Iwasaki, Kentaro Masui
  • Patent number: 10011720
    Abstract: A silicone-based encapsulating material composition contains a bifunctional thermosetting silicone resin (A), a multifunctional thermosetting silicone resin having a hydroxyl group (B), and a curing catalyst (C). In the composition, a weight-average molecular weight of the component (A) is 300 to 4,500, a mass ratio of the component (B) relative to a total mass of the component (A) and the component (B) is 0.5% by mass or more and less than 100% by mass, an average functional number of the component (B) is 2.5 to 3.5, and the repeating units constituting the component (B) which are trifunctional account for 50% by mass or more relative to a total mass of the component (B). A visible light transmittance measured at an optical path length of 1 cm and a wavelength of 600 nm is 70% or higher.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: July 3, 2018
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Gaku Yoshikawa, Masayuki Takashima, Kentaro Masui
  • Publication number: 20180159000
    Abstract: An LED device is provided which includes a substrate, an LED element disposed on the substrate, an inorganic glass molded body disposed at a position where all or a part of the light which is emitted from the LED element passes through, a first bonding portion that is provided in contact with the substrate and bonds the substrate and the inorganic glass molded body, and a second bonding portion provided between the LED element and the inorganic glass molded body. The LED element is shielded from the outside air by the substrate, the inorganic glass molded body and the first bonding portion. A material which forms the second bonding portion contains a condensation polymerization-type silicone resin. A distance between the LED element and the inorganic glass molded body is 0.1 mm or less.
    Type: Application
    Filed: May 19, 2016
    Publication date: June 7, 2018
    Inventors: Atsunori DOI, Katsuhiko IWASAKI, Kentaro MASUI
  • Publication number: 20170298187
    Abstract: A silicone resin which is a condensation product of a silane compound is provided. The condensation product of the silane compound contains a constitutional unit derived from a fluorine atom-containing silane compound, in which a fluoroalkyl group having at least one fluorine atom is bonded to a silicon atom.
    Type: Application
    Filed: September 29, 2015
    Publication date: October 19, 2017
    Inventors: Kentaro MASUI, Akiko NAKAZONO
  • Patent number: 9764276
    Abstract: The present invention relates to a resin composition including a substance capable of reacting reversibly with a carbon dioxide gas, and a hydrocarbon-based polymer; a carbon dioxide gas separation membrane obtained from the resin composition; a carbon dioxide gas separation membrane module including the separation membrane; and a carbon dioxide gas separation apparatus including at least one type of the module.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: September 19, 2017
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Ayumi Aoki, Mitsunori Nodono, Kentaro Masui
  • Publication number: 20170210899
    Abstract: A silicone-based encapsulating material composition contains a bifunctional the silicone resin (A), a multifunctional thermosetting silicone resin having a hydroxyl group (B), and a curing catalyst (C). In the composition, a weight-average molecular weight of the component (A) is 300 to 4,500, a mass ratio of the component (B) relative to a total mass of the component (A) and the component (B) is 0.5% by mass or more and less than 100% by mass, an average functional number of the component (B) is 2.5 to 3.5, and the repeating units constituting the component (B) which are trifunctional account for 50% by mass or more relative to a total mass of the component (B). A visible light transmittance measured at an optical path length of 1 cm and a wavelength of 600 nm is 70% or higher.
    Type: Application
    Filed: July 27, 2015
    Publication date: July 27, 2017
    Inventors: Gaku YOSHIKAWA, Masayuki TAKASHIMA, Kentaro MASUI
  • Publication number: 20160158692
    Abstract: The present invention relates to a resin composition including a substance capable of reacting reversibly with a carbon dioxide gas, and a hydrocarbon-based polymer; a carbon dioxide gas separation membrane obtained from the resin composition; a carbon dioxide gas separation membrane module including the separation membrane; and a carbon dioxide gas separation apparatus including at least one type of the module.
    Type: Application
    Filed: July 9, 2014
    Publication date: June 9, 2016
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Ayumi AOKI, Mitsunori NODONO, Kentaro MASUI
  • Patent number: 8178590
    Abstract: A polymer electrolyte satisfying both of proton conductivity and chemical stability such as water resistance at a high level that is preferable as the polymer electrolyte for fuel cells and the like is provided. The invention includes a block copolymer comprising one or more segments having an ion exchange group and one or more segments having substantially no ion exchange group, wherein at least one of the segments having an ion exchange groupis the segment represented by the following general formula (1A), (1B) or (1C): and the segment has ion exchange group density of 4.
    Type: Grant
    Filed: May 25, 2007
    Date of Patent: May 15, 2012
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Kentaro Masui, Shigeru Sasaki
  • Patent number: 7972734
    Abstract: A process for producing a polymer electrolyte emulsion having the following steps (1) and (2) is provided. Step (1): a step of dissolving a polymer electrolyte in a solvent comprising a good solvent for the polymer electrolyte to prepare a polymer electrolyte solution having a polymer electrolyte concentration of 0.1 to 10% by weight. Step (2): a step of mixing the polymer electrolyte solution 10 obtained in the step (1), and a poor solvent for the polymer electrolyte at a ratio of 4 to 99 parts by weight of the poor solvent based on 1 part by weight of the polymer electrolyte solution. In addition, a process for producing a polymer 15 electrolyte emulsion comprising separating a polymer electrolyte dispersion in which a polymer electrolyte particle is dispersed in a dispersing medium, with a membrane is provided.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: July 5, 2011
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Ryuma Kuroda, Shin Saito, Hiroyuki Kurita, Kentaro Masui
  • Publication number: 20100167165
    Abstract: The present invention is a copolymer obtained by condensation, a condensation reaction of a leaving group and a nucleophilic group, of a mixture of the following (A) and (C) with a mixture of (B) and (D), or of a mixture of (A), (B), (C) and (D): (A) a monomer having two leaving groups and further at least one acid group in a molecule; (B) a monomer having two nucleophilic groups and further at least one acid group in a molecule; (C) a monomer having two leaving groups and substantially no acid group in a molecule; and (D) a monomer having two nucleophilic groups and substantially no acid group in a molecule.
    Type: Application
    Filed: December 19, 2006
    Publication date: July 1, 2010
    Applicant: SUMITOMO CHEMICAL COMPANY , LIMITED
    Inventors: Kentaro Masui, Hiroyuki Kurita
  • Publication number: 20100129729
    Abstract: A crosslinked aromatic polymer which is produced by a process comprising a reaction step of reacting an aromatic monomer having an ion exchange group of the following general formula (1) and a poly-functional aromatic monomer of the following general formula (2) in a solvent, thereby generating a gel swollen with the solvent: wherein, in the formulae, Ar1 represents a (2+n)-valent aromatic group, Ar2 represents a (3+p)-valent aromatic group, Q represents an ion exchange group, X1 represents a functional group condensable with X1 or X2, X2 represents a functional group condensable with X1 or X2, n represents an integer of 1 or more, p represents an integer of 0 or more, and in this connection a plurality of X1's and X2's may be the same as or different from each other, respectively.
    Type: Application
    Filed: May 16, 2008
    Publication date: May 27, 2010
    Inventor: Kentaro Masui
  • Publication number: 20090208810
    Abstract: A process for producing a polymer electrolyte emulsion having the following steps (1) and (2) is provided. Step (1): a step of dissolving a polymer electrolyte in a solvent comprising a good solvent for the polymer electrolyte to prepare a polymer electrolyte solution having a polymer electrolyte concentration of 0.1 to 10% by weight. Step (2): a step of mixing the polymer electrolyte solution obtained in the step (1), and a poor solvent for the polymer electrolyte at a ratio of 4 to 99 parts by weight of the poor solvent based on 1 part by weight of the polymer electrolyte solution. In addition, a process for producing a polymer electrolyte emulsion comprising separating a polymer electrolyte dispersion in which a polymer electrolyte particle is dispersed in a dispersing medium, with a membrane is provided.
    Type: Application
    Filed: June 29, 2007
    Publication date: August 20, 2009
    Inventors: Ryuma Kuroda, Shin Saito, Hiroyuki Kurita, Kentaro Masui
  • Publication number: 20090208804
    Abstract: Provided is a polymer electrolyte emulsion, wherein a polymer electrolyte particle is dispersed in a dispersing medium, a zeta potential at the measurement temperature of 25° C. being in a range of ?50 mV to ?300 mV. Also, provided is a polymer electrolyte emulsion, wherein a polymer electrolyte particle is dispersed in a dispersing medium, an ion exchange capacity of a solid material obtained by removing a volatile substance from the polymer electrolyte emulsion being 1.5 to 3.0 meq/g.
    Type: Application
    Filed: June 29, 2007
    Publication date: August 20, 2009
    Inventors: Ryuma Kuroda, Shin Saito, Hiroyuki Kurita, Kentaro Masui
  • Publication number: 20090202888
    Abstract: A polymer electrolyte emulsion wherein a polymer electrolyte particle is dispersed in a dispersing medium, wherein a polymer electrolyte contained in the polymer electrolyte particle is a block copolymer consisting of a segment having an acidic group and a segment without substantially ion exchange group, is provided.
    Type: Application
    Filed: June 29, 2007
    Publication date: August 13, 2009
    Inventors: Ryuma Kuroda, Shin Saito, Hiroyuki Kurita, Kentaro Masui
  • Publication number: 20070281195
    Abstract: A polymer electrolyte satisfying both of proton conductivity and chemical stability such as water resistance at a high level that is preferable as the polymer electrolyte for fuel cells and the like is provided. The invention includes a block copolymer comprising one or more segments having an ion exchange group and one or more segments having substantially no ion exchange group, wherein at least one of the segments having an ion exchange groupis the segment represented by the following general formula (1A), (1B) or (1C): and the segment has ion exchange group density of 4.
    Type: Application
    Filed: May 25, 2007
    Publication date: December 6, 2007
    Inventors: Kentaro Masui, Shigeru Sasaki