Patents by Inventor Masaaki Umehara

Masaaki Umehara 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).

  • Patent number: 11287566
    Abstract: A plastic optical fiber is excellent in translucency, heat resistance, resistance to environment and the like, and has highly excellent flexibility. The plastic optical fiber contains a core and at least one layer of cladding, wherein the bending elastic modulus of the innermost layer of the cladding is 20 to 70 MPa, the glass transition temperature of the innermost layer of the cladding is 10° C. or lower, and the storage elastic modulus of the innermost layer of the cladding at 30° C. is 1×106 Pa to 4×107 Pa.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: March 29, 2022
    Assignee: Toray Industries, Inc.
    Inventors: Satoshi Matsuba, Masaaki Umehara, Shinji Sato, Hideki Kojima, Yasushi Sawamura
  • Patent number: 11149196
    Abstract: An organic luminescent material suitable for color conversion material used for a liquid crystal display or LED lighting, excellent in luminous efficiency and durability, to which a pyrromethene-boron complex or a color conversion composition containing the pyrromethene-boron complex contributes, is provided.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: October 19, 2021
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Yasunori Ichihashi, Masaaki Umehara, Hirotoshi Sakaino, Daisaku Tanaka
  • Patent number: 10894375
    Abstract: A color conversion film converts incident light into light with a wavelength longer than that of the incident light. The color conversion film is a laminate film including the following Layer(A) and Layer (B): Layer (A): a color conversion layer as a continuous layer containing at least one organic light-emitting material and a binder resin; and Layer (B): a transparent resin layer with an oxygen permeability of 1.0 cc/m2·day·atm or less.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: January 19, 2021
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Hirotoshi Sakaino, Daisaku Tanaka, Masaaki Umehara, Yoshikazu Sato
  • Publication number: 20200408985
    Abstract: A plastic optical fiber is excellent in translucency, heat resistance, resistance to environment and the like, and has highly excellent flexibility. The plastic optical fiber contains a core and at least one layer of cladding, wherein the bending elastic modulus of the innermost layer of the cladding is 20 to 70 MPa, the glass transition temperature of the innermost layer of the cladding is 10° C. or lower, and the storage elastic modulus of the innermost layer of the cladding at 30° C. is 1×106 Pa to 4×107 Pa.
    Type: Application
    Filed: February 13, 2019
    Publication date: December 31, 2020
    Inventors: Satoshi Matsuba, Masaaki Umehara, Shinji Sato, Hideki Kojima, Yasushi Sawamura
  • Patent number: 10836959
    Abstract: An organic luminescent material suitable for color conversion material used for a liquid crystal display or LED lighting, excellent in luminous efficiency and durability, to which a pyrromethene-boron complex or a color conversion composition containing the pyrromethene-boron complex contributes, is provided.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: November 17, 2020
    Assignee: Toray Industries, Inc.
    Inventors: Yasunori Ichihashi, Masaaki Umehara, Hirotoshi Sakaino, Daisaku Tanaka
  • Publication number: 20200347292
    Abstract: An organic luminescent material suitable for color conversion material used for a liquid crystal display or LED lighting, excellent in luminous efficiency and durability, to which a pyrromethene-boron complex or a color conversion composition containing the pyrromethene-boron complex contributes, is provided.
    Type: Application
    Filed: July 22, 2020
    Publication date: November 5, 2020
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Yasunori Ichihashi, Masaaki Umehara, Hirotoshi Sakaino, Daisaku Tanaka
  • Patent number: 10784414
    Abstract: A light source unit includes: a light source; a color conversion film containing an organic luminous material that converts incident light made incident from the light source into light with a longer wavelength than that of the incident light; and a laminated film comprising a constitution in which 11 or more layers of different thermoplastic resins are alternately laminated with each other.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: September 22, 2020
    Assignee: Toray Industries, Inc.
    Inventors: Masaaki Umehara, Takayuki Uto, Wataru Gouda, Jun Sakamoto
  • Patent number: 10738218
    Abstract: Provided is a polysiloxane, containing at least one segment selected from molecular structures shown by formula 1 below, wherein in formula 1, Q is an alkyl containing an alcoholic hydroxyl and having less than 12 carbon atoms in the main chain, or an alkyl containing an alcoholic hydroxyl and having less than 12 non-hydrogen atoms in the main chain and containing a heteroatom; and T is a hydroxyl, an alkyl, an alkyl containing an alcoholic hydroxyl and having less than 12 carbon atoms in the main chain, or an alkyl containing an alcoholic hydroxyl and having less than 12 non-hydrogen atoms in the main chain and containing a heteroatom. A doped slurry and a mask material prepared by using the polysiloxane, on the basis of having a good diffusivity, also have a good barrier property and a small amount of diffusion in air.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: August 11, 2020
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Fangrong Xu, Ping Li, Takeshi Ikeda, Wei Song, Guangnan Jin, Masaaki Umehara, Tsuyoshi Kitada
  • Patent number: 10703970
    Abstract: A color conversion composition that converts incident light into light having a wavelength longer than that of the incident light includes: a compound represented by Formula (1): (R1 to R4 are the same or different from each other and selected from the group consisting of hydrogen, an alkyl group, a cycloalkyl group, an aralkyl group, an alkenyl group, a cycloalkenyl group, an alkynyl group, a hydroxy group, a mercapto group, an alkoxy group, an alkylthio group, an aryl ether group, an aryl thioether group, an aryl group, a heteroaryl group, a heterocyclic group, a halogen, a haloalkane, a haloalkene, a haloalkyne, a cyano group, an aldehyde group, a carbonyl group, a carboxy group, an ester group, a carbamoyl group, an amino group, a nitro group, a silyl group, a siloxanyl group, and a ring structure formed between adjacent substituents; Ar1 to Ar4 are aryl groups and Ar1 ? Ar2 or Ar3 ? Ar4, and Ar5 is an aryl group or a heteroaryl group); and a binder resin.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: July 7, 2020
    Assignees: Toray Industries, Inc., Toray Chemical Korea Incorporated
    Inventors: Masaaki Umehara, Jinwoo Kwon, Hyo-seok Kim
  • Patent number: 10669474
    Abstract: A light source unit includes: a light emitting body; and a color conversion film including an organic luminescent material configured to convert at least a part of incident light incident from the light emitting body into light having a wavelength longer than a wavelength of the incident light. The light emitting body includes a light source, and a layer including a green phosphor and formed on the light source. The organic luminescent material has a light emission wavelength peak in a wavelength region of 580 nm or longer and 750 nm or shorter.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: June 2, 2020
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Tatsuya Kanzaki, Yuichiro Iguchi, Masaaki Umehara
  • Publication number: 20200048546
    Abstract: A light source unit includes: a light emitting body; and a color conversion film including an organic luminescent material configured to convert at least a part of incident light incident from the light emitting body into light having a wavelength longer than a wavelength of the incident light. The light emitting body includes a light source, and a layer including a green phosphor and formed on the light source. The organic luminescent material has a light emission wavelength peak in a wavelength region of 580 nm or longer and 750 nm or shorter.
    Type: Application
    Filed: August 18, 2017
    Publication date: February 13, 2020
    Applicant: Toray Industries, Inc.
    Inventors: Tatsuya Kanzaki, Yuichiro Iguchi, Masaaki Umehara
  • Patent number: 10400165
    Abstract: A color conversion composition includes the following Component (A) and Component (B): Component (A): an organic light-emitting material; and Component (B): at least one of a polyester resin having a partial structure represented by General Formula (1) in its molecular structure of the polyester resin and a resin containing a bisphenol structure represented by General Formula (2): where Y is a divalent saturated aliphatic hydrocarbon group having at least one of a tertiary carbon and a quaternary carbon, where R1 and R2 each represent hydrogen or a C1-20 organic group; R1 and R2 may be the same as or different from each other.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: September 3, 2019
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Masaaki Umehara, Daisaku Tanaka, Hirotoshi Sakaino, Tsubasa Hamano
  • Publication number: 20190203071
    Abstract: Provided is a polysiloxane, containing at least one segment selected from molecular structures shown by formula 1 below, wherein in formula 1, Q is an alkyl containing an alcoholic hydroxyl and having less than 12 carbon atoms in the main chain, or an alkyl containing an alcoholic hydroxyl and having less than 12 non-hydrogen atoms in the main chain and containing a heteroatom; and T is a hydroxyl, an alkyl, an alkyl containing an alcoholic hydroxyl and having less than 12 carbon atoms in the main chain, or an alkyl containing an alcoholic hydroxyl and having less than 12 non-hydrogen atoms in the main chain and containing a heteroatom. A doped slurry and a mask material prepared by using the polysiloxane, on the basis of having a good diffusivity, also have a good barrier property and a small amount of diffusion in air.
    Type: Application
    Filed: August 23, 2017
    Publication date: July 4, 2019
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Fangrong XU, Ping LI, Takeshi IKEDA, Wei SONG, Guangnan JIN, Masaaki UMEHARA, Tsuyoshi KITADA
  • Publication number: 20190103521
    Abstract: A light source unit includes: a light source; a color conversion film containing an organic luminous material that converts incident light made incident from the light source into light with a longer wavelength than that of the incident light; and a laminated film comprising a constitution in which 11 or more layers of different thermoplastic resins are alternately laminated with each other.
    Type: Application
    Filed: March 21, 2017
    Publication date: April 4, 2019
    Applicant: Toray Industries, Inc.
    Inventors: Masaaki Umehara, Takayuki Uto, Wataru Gouda, Jun Sakamoto
  • Patent number: 10199589
    Abstract: A photoelectric conversion element, including a first electrode, a second electrode, and at least one organic layer being present between the first electrode and the second electrode, in which the organic layer contains at least two kinds of compounds having the same skeletons and different substituents in combination.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: February 5, 2019
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Masaaki Umehara, Tsuyoshi Tominaga, Jinwoo Kwon
  • Publication number: 20180305611
    Abstract: A color conversion composition includes the following Component (A) and Component (B): Component (A): an organic light-emitting material; and Component (B): at least one of a polyester resin having a partial structure represented by General Formula (1) in its molecular structure of the polyester resin and a resin containing a bisphenol structure represented by General Formula (2): (where Y is a divalent saturated aliphatic hydrocarbon group having at least one of a tertiary carbon and a quaternary carbon, where R1 and R2 each represent hydrogen or a C1-20 organic group; R1 and R2 may be the same as or different from each other.
    Type: Application
    Filed: September 30, 2016
    Publication date: October 25, 2018
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Masaaki Umehara, Daisaku Tanaka, Hirotoshi Sakaino, Tsubasa Hamano
  • Publication number: 20180274753
    Abstract: A color conversion film converts incident light into light with a wavelength longer than that of the incident light. The color conversion film is a laminate film including the following Layer(A) and Layer(B): Layer (A): a color conversion layer as a continuous layer containing at least one organic light-emitting material and a binder resin; and Layer (B): a transparent resin layer with an oxygen permeability of 1.0 cc/m2·day·atm or less.
    Type: Application
    Filed: September 26, 2016
    Publication date: September 27, 2018
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Hirotoshi Sakaino, Daisaku Tanaka, Masaaki Umehara, Yoshikazu Sato
  • Publication number: 20180179439
    Abstract: A color conversion composition that converts incident light into light having a wavelength longer than that of the incident light includes: a compound represented by Formula (1): (R1 to R4 are the same or different from each other and selected from the group consisting of hydrogen, an alkyl group, a cycloalkyl group, an aralkyl group, an alkenyl group, a cycloalkenyl group, an alkynyl group, a hydroxy group, a mercapto group, an alkoxy group, an alkylthio group, an aryl ether group, an aryl thioether group, an aryl group, a heteroaryl group, a heterocyclic group, a halogen, a haloalkane, a haloalkene, a haloalkyne, a cyano group, an aldehyde group, a carbonyl group, a carboxy group, an ester group, a carbamoyl group, an amino group, a nitro group, a silyl group, a siloxanyl group, and a ring structure formed between adjacent substituents; Ar1 to Ar4 are aryl groups and Ar1 ? Ar2 or Ar3 ? Ar4, and Ar5 is an aryl group or a heteroaryl group); and a binder resin.
    Type: Application
    Filed: June 23, 2016
    Publication date: June 28, 2018
    Applicants: TORAY INDUSTRIES, INC., Toray Chemical Korea Incorporated
    Inventors: Masaaki UMEHARA, Jinwoo KWON, Hyo-seok KIM
  • Publication number: 20180134952
    Abstract: An organic luminescent material suitable for color conversion material used for a liquid crystal display or LED lighting, excellent in luminous efficiency and durability, to which a pyrromethene-boron complex or a color conversion composition containing the pyrromethene-boron complex contributes, is provided.
    Type: Application
    Filed: May 23, 2016
    Publication date: May 17, 2018
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Yasunori Ichihashi, Masaaki Umehara, Hirotoshi Sakaino, Daisaku Tanaka
  • Patent number: 9842884
    Abstract: Disclosed is a photoelectric conversion element for converting light into electric energy, including a first electrode, a second electrode, and at least one organic layer existing therebetween, the organic layer containing a compound represented by the general formula (1): wherein R1 to R4 are alkyl groups, cycloalkyl groups, alkoxy groups, or arylether groups, which may be respectively the same or different; R5 and R6 are halogens, hydrogens, or alkyl groups, which may be respectively the same or different; R7 is an aryl group, a heteroaryl group, or an alkenyl group; M represents an m-valent metal and is at least one selected from boron, beryllium, magnesium, aluminum, chromium, iron, nickel, copper, zinc, and platinum; L is selected from halogen, hydrogen, an alkyl group, an aryl group, and a heteroaryl group; and m is in a range of 1 to 6 and, when m?1 is 2 or more, each L may be the same or different.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: December 12, 2017
    Assignee: Toray Industries, Inc.
    Inventors: Masaaki Umehara, Tsuyoshi Tominaga, Jinwoo Kwon