Patents by Inventor Yuta Takahashi

Yuta Takahashi 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: 9097837
    Abstract: An optical film is provided and has retardations satisfying relations (1) to (3): 0?Re(550)?10;??(1) ?25?Rth(550)?25;??(2) and |I|+|II|+|III|+|IV|>0.5 (nm),??(3) with definitions: I=Re(450)?Re(550); II=Re(650)?Re(550); III=Rth(450)?Rth(550); and IV=Rth(650)?Rth(550), wherein Re(450), Re(550) and Re(650) are in-plane retardations measured with lights of wavelength of 450, 550 and 650 nm, respectively; and Rth(450), Rth(550) and Rth(650) are retardations in a thickness direction of the optical film, which are measured with lights of wavelength of 450, 550 and 650 nm, respectively.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: August 4, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Hajime Nakayama, Hirofumi Toyama, Yuta Takahashi
  • Patent number: 8920889
    Abstract: An optical film having: a hard coat layer; an optically anisotropic layer; and a transparent support, wherein the optically anisotropic layer contains a liquid crystalline compound and a binder, the hard coat layer, the transparent support, and the optically anisotropic layer are laminated in this order, a surface of the optically anisotropic layer contains a fluorine-containing compound not forming covalent bond with the binder of the optically anisotropic layer, a surface of the optical film on the hard coat layer-formed side contains a fluorine-containing or silicone series compound being fixed by covalent bond, and a topmost surface properties of the optical film on hard coat layer-formed side satisfies the specific conditions.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: December 30, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Hiroyuki Yoneyama, Yuta Takahashi
  • Publication number: 20140377528
    Abstract: An optical film is provided and has retardations satisfying relations (1) to (3): 0?Re(550)?10??(1); ?25?Rth(550)?25??(2); and |I|+|II|+|III|+|IV|>0.5(nm)??(3), with definitions: I=Re(450)?Re(550); II=Re(650)?Re(550); III=Rth(450)?Rth(550); and IV=Rth(650)?Rth(550), wherein Re(450), Re(550) and Re(650) are in-plane retardations measured with lights of wavelength of 450, 550 and 650 nm, respectively; and Rth(450), Rth(550) and Rth(650) are retardations in a thickness direction of the optical film, which are measured with lights of wavelength of 450, 550 and 650 nm, respectively.
    Type: Application
    Filed: September 10, 2014
    Publication date: December 25, 2014
    Applicant: FUJIFILM Corporation
    Inventors: Hajime NAKAYAMA, Hirofumi TOYAMA, Yuta TAKAHASHI
  • Patent number: 8896774
    Abstract: To provide an optical film which may be used as a ?/4 plate and may provide a display device which has specific optical characteristics, may be manufactured with high productivity and has an excellent 3D-display performance. To provide a 3D-display device having a physical properties having excellent antireflective property and light fastness with high productivity. An optical film having at least one optically anisotropic layer, wherein an in-plane retardation. Re at an arbitrary wavelength in a visible light region is 80 nm to 201 nm, an Nz value represented by the following equation is 0.1 to 0.9, and when the in-plane retardations at wavelengths of 450 nm, 550 nm and 650 nm are referred to as Re450, Re550 and Re650, respectively, Re450/Re550 is 1.18 or less and Re650/Re550 is 0.93 or more. Nz=0.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: November 25, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Yuta Takahashi, Hisato Nagase
  • Patent number: 8889236
    Abstract: An optical film having: a hard coat layer; an optically anisotropic layer; and a transparent support, wherein the optically anisotropic layer contains a liquid crystalline compound and a binder, the hard coat layer, the transparent support, and the optically anisotropic layer are laminated in this order, a surface of the optically anisotropic layer contains a fluorine-containing compound not forming covalent bond with the binder of the optically anisotropic layer, a surface of the optical film on the hard coat layer-formed side contains a fluorine-containing or silicone series compound being fixed by covalent bond, and a topmost surface properties of the optical film on hard coat layer-formed side satisfies the specific conditions.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: November 18, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Hiroyuki Yoneyama, Yuta Takahashi
  • Patent number: 8823909
    Abstract: An optical film is provided and has retardations satisfying relations (1) to (3): 0?Re(550)?10;??(1) ?25?Rth(550)?25; and??(2) |I|+|II|+|III|+|IV|>0.5 (nm),??(3) with definitions: I=Re(450)?Re(550); II=Re(650)?Re(550); III=Rth(450)?Rth(550); and IV=Rth(650)?Rth(550), wherein Re(450), Re(550) and Re(650) are in-plane retardations measured with lights of wavelength of 450, 550 and 650 nm, respectively; and Rth(450), Rth(550) and Rth(650) are retardations in a thickness direction of the optical film, which are measured with lights of wavelength of 450, 550 and 650 nm, respectively.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: September 2, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Hajime Nakayama, Hirofumi Toyama, Yuta Takahashi
  • Patent number: 8779795
    Abstract: In a case where a semiconductor chip is mounted over a first package, 80 pads are coupled to 80 terminals of the package, and in a case where the semiconductor chip is mounted over a second package, 100 pads are coupled to 100 terminals of the second package. An internal circuit of the semiconductor chip operates as a microcomputer with 80 terminals in a case where electrodes are insulated from each other and operates as a microcomputer with 100 terminals in a case where the electrodes are shorted therebetween by an end part of a bonding wire. Therefore, a dedicated pad for setting the number of terminals of the packages is no longer required.
    Type: Grant
    Filed: July 24, 2012
    Date of Patent: July 15, 2014
    Assignee: Renesas Elecronics Corporation
    Inventor: Yuta Takahashi
  • Publication number: 20140055732
    Abstract: An optical film is provided and has retardations satisfying relations (1) to (3): 0?Re(550)?10;??(1) ?25?Rth(550)?25; and??(2) |I|+|II|+|III|+|IV|>0.5 (nm),??(3) with definitions: I=Re(450)?Re(550); II=Re(650)?Re(550); III=Rth(450)?Rth(550); and IV=Rth(650)?Rth(550), wherein Re(450), Re(550) and Re(650) are in-plane retardations measured with lights of wavelength of 450, 550 and 650 nm, respectively; and Rth(450), Rth(550) and Rth(650) are retardations in a thickness direction of the optical film, which are measured with lights of wavelength of 450, 550 and 650 nm, respectively.
    Type: Application
    Filed: November 4, 2013
    Publication date: February 27, 2014
    Applicant: FUJIFILM Corporation
    Inventors: Hajime NAKAYAMA, Hirofumi TOYAMA, Yuta TAKAHASHI
  • Publication number: 20130313066
    Abstract: A vehicle parking lock device stopping rotation of a parking gear formed on a rotating member coupled to drive wheels to stop rotation thereof, including: a parking pole having a claw portion for engagement with the parking gear, the parking pole being rotatable around a support shaft by pushing out a cam movable in an axial direction of the parking gear, the support shaft being in parallel with the axial direction; a stopper plate contacting the parking pole to regulate movement in the axial direction; and a spring contacting the parking pole to bias it in a direction of release of engagement between the claw portion and parking gear, the vehicle parking lock device being configured to dispose a contact point of the contact between the spring and parking pole closer to the stopper plate in the axial direction than a contact point between the parking pole and cam.
    Type: Application
    Filed: February 15, 2011
    Publication date: November 28, 2013
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuta Takahashi, Hiroki Morita, Takuya Kodama
  • Publication number: 20130293824
    Abstract: A method for producing an optical film including: laminating a hard coat layer on one side of an optical substrate in roll form, the hard coat layer having a transparent support and an optical anisotropic layer. The transparent support is laminated on the optical anisotropic layer, the one side is a transparent support-side of the optical substrate, the hard coat layer is obtained by coating, drying and curing a composition for forming a hard coat layer containing a curable monomer, a photo-polymerization initiator, and a solvent. The solvent is a mixture of at least one solvent selected from (S-1) and (S-2) and at least one solvent selected from (S-3), or a mixture of at least one solvent selected from (S-1) and at least one solvent selected from (S-2): (S-1) solvents dissolving the transparent support; (S-2) solvents swelling the transparent support; and (S-3) solvents neither dissolving nor swelling the transparent support.
    Type: Application
    Filed: April 8, 2013
    Publication date: November 7, 2013
    Inventors: Hiroyuki YONEYAMA, Yuta TAKAHASHI, Miho ASAHI, Junko IBARAKI
  • Publication number: 20130062605
    Abstract: In a case where a semiconductor chip is mounted over a first package, 80 pads are coupled to 80 terminals of the package, and in a case where the semiconductor chip is mounted over a second package, 100 pads are coupled to 100 terminals of the second package. An internal circuit of the semiconductor chip operates as a microcomputer with 80 terminals in a case where electrodes are insulated from each other and operates as a microcomputer with 100 terminals in a case where the electrodes are shorted therebetween by an end part of a bonding wire. Therefore, a dedicated pad for setting the number of terminals of the packages is no longer required.
    Type: Application
    Filed: July 24, 2012
    Publication date: March 14, 2013
    Inventor: Yuta TAKAHASHI
  • Patent number: 8368859
    Abstract: An optical film is provided and has retardations satisfying relations (1) to (3): 0?Re(550)?10; ??(1) ?25 ?Rth(550)?25; and ??(2) |I|+|II|+|III|+|IV|>0.5 (nm), ??(3) with definitions: I=Re(450)?Re(550); II=Re(650)?Re(550); III=Rth(450)?Rth(550); and IV=Rth(650)?Rth(550), wherein Re(450), Re(550) and Re(650) are in-plane retardations measured with lights of wavelength of 450, 550 and 650 nm, respectively; and Rth(450), Rth(550) and Rth(650) are retardations in a thickness direction of the optical film, which are measured with lights of wavelength of 450, 550 and 650 nm, respectively.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: February 5, 2013
    Assignee: FUJIFILM Corporation
    Inventors: Hajime Nakayama, Hirofumi Toyama, Yuta Takahashi
  • Publication number: 20130003000
    Abstract: An optical film is provided and has retardations satisfying relations (1) to (3): 0?Re(550)?10;??(1) ?25?Rth(550)?25; and??(2) |I|+|II|+|III|+|IV|>0.5 (nm),??(3) with definitions: I=Re(450)-Re(550); II=Re(650)-Re(550); III=Rth(450)-Rth(550); and IV=Rth(650)-Rth(550), wherein Re(450), Re(550) and Re(650) are in-plane retardations measured with lights of wavelength of 450, 550 and 650 nm, respectively; and Rth(450), Rth(550) and Rth(650) are retardations in a thickness direction of the optical film, which are measured with lights of wavelength of 450, 550 and 650 nm, respectively.
    Type: Application
    Filed: September 11, 2012
    Publication date: January 3, 2013
    Applicant: FUJIFILM Corporation
    Inventors: Hajime NAKAYAMA, Hirofumi Toyama, Yuta Takahashi
  • Publication number: 20120182507
    Abstract: An optical film is provided and has retardations satisfying relations (1) to (3): (1) 0?Re(550)?10; (2) ?25 ?Rth(550)?5; and (3) |I|+|II|+|III|+|IV|>0.5 (nm), with definitions: I=Re(450)?Re(550); II=Re(650)?Re(550); III=Rth(450)?Rth(550); and IV=Rth(650)?Rth(550), wherein Re(450), Re(550) and Re(650) are in-plane retardations measured with lights of wavelength of 450, 550 and 650 nm, respectively; and Rth(450), Rth(550) and Rth(650) are retardations in a thickness direction of the optical film, which are measured with lights of wavelength of 450, 550 and 650 nm, respectively.
    Type: Application
    Filed: March 29, 2012
    Publication date: July 19, 2012
    Applicant: FUJIFILM Corporation
    Inventors: Hajime NAKAYAMA, Hirofumi Toyama, Yuta Takahashi
  • Publication number: 20120169970
    Abstract: An optical film includes, in the following order: a transparent support; an oriented film; an optically anisotropic layer; and a hardcoat layer, the oriented film is directly contacted with the optically anisotropic layer and the optically anisotropic layer is directly contacted with the hardcoat layer, the optically anisotropic layer is formed from a composition containing a liquid crystalline compound having an unsaturated double bond, the optically anisotropic layer and the hardcoat layer are connected with a covalent bond, and in-plane retardation of the optical film at a wavelength of 550 nm is from 80 to 200 nm and retardation in a direction of thickness of the optical film at a wavelength of 550 nm is from ?70 to 70 nm.
    Type: Application
    Filed: January 4, 2012
    Publication date: July 5, 2012
    Applicant: FUJIFILM CORPORATION
    Inventors: Kenichi FUKUDA, Yuta TAKAHASHI
  • Publication number: 20120147300
    Abstract: An optical film includes, in the following order: an optically anisotropic layer; a transparent support; and a hardcoat layer, in-plane retardation of the optical film at a wavelength of 550 nm is from 80 to 200 nm and retardation in a direction of thickness of the optical film at a wavelength of 550 nm is from ?70 to 70 nm.
    Type: Application
    Filed: November 30, 2011
    Publication date: June 14, 2012
    Applicant: FUJIFILM CORPORATION
    Inventors: Kenichi FUKUDA, Yuta TAKAHASHI
  • Patent number: 8053040
    Abstract: A composition comprising at least one liquid crystal compound, and at least one polymer is disclosed. The polymer comprises a constitutional unit represented by a following formula (A) and a constitutional unit derived from a monomer having a fluoroaliphatic group(s): wherein Mp represents a trivalent group constituting fully or partially a polymer main chain; L represents a single bond or a divalent linking group; and X represents a substituted or non-substituted aromatic condensed ring group.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: November 8, 2011
    Assignee: FUJIFILM Corporation
    Inventors: Yi Li, Hideyuki Nishikawa, Yuta Takahashi, Masataka Yoshizawa, Takafumi Hosokawa
  • Patent number: 8025936
    Abstract: The present invention aims to provide an optical compensation film that allows superior phase difference between a first optically anisotropic layer and a second optically anisotropic layer and excellent wavelength dispersibility in terms of front and inclined retardation of liquid crystal layers in liquid crystal cells, a polarizing plate containing the optical compensation film, and a liquid-crystal display device that can display superior images with less color change due to the polarizing plate. In order to attain the object, an optical compensation film etc. is provided that comprises at least a first optically anisotropic layer and a second optically anisotropic layer, wherein the first optically anisotropic layer satisfies at least one of the following Equations (i) to (iii): 1?Re1450)(0°)/Re1650)(0°)?1.25:??Equation (i) 1?Re1450)(40°)/Re1650)(40°)?1.25:??Equation (ii) 1?Re1450)(?40°)/Re1650)(?40°)?1.25:??Equation (iii).
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: September 27, 2011
    Assignee: FUJIFILM Corporation
    Inventors: Ryota Matsubara, Yuta Takahashi, Akira Ikeda, Masaru Yoshikawa, Takafumi Hosokawa, Michio Nagai, Makoto Takahashi
  • Publication number: 20110141755
    Abstract: A vehicle lamp can include a light source, a first reflector and a second reflector configured to reflect light from the light source, a convex lens disposed in front of the first reflector, and a shade configured to partially shield the light reflected by the first reflector. One component (e.g., second reflector) out of the first reflector, the second reflector and the shade can be assembled to be brought into contact with another component (e.g., shade) out of the first reflector, the second reflector and the shade at respective contact areas of the one component and the other component according to a particular specification.
    Type: Application
    Filed: November 17, 2010
    Publication date: June 16, 2011
    Inventors: Tadao Tsukagoshi, Ryoji Konoki, Yuta Takahashi
  • Patent number: 7876403
    Abstract: A novel optical compensation film is disclosed. The film comprises at least a first optically anisotropic layer and a second optically anisotropic layer, the first optically anisotropic layer having an in-plane retardation of 0 to 10 nm and an in-thickness direction retardation of ?400 to ?80 nm, the second optically anisotropic layer having an in-plane retardation of 20 to 150 nm and an in-thickness direction retardation of 100 to 300 nm, and at least either one of the first and second optically anisotropic layer being a polymer film.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: January 25, 2011
    Assignee: Fujifilm Corporation
    Inventors: Kenichi Fukuda, Yuta Takahashi, Hiroyuki Kawanishi