Patents by Inventor Toshiharu Oishi

Toshiharu Oishi 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: 11453340
    Abstract: A display device includes: a display panel, a reflective polarization plate, a polarization control panel, a polarization plate, and an optical layer arranged in a stated order. The reflective polarization plate transmits a component polarized in the first direction and reflects a component polarized in the second direction, in light incident on the reflective polarization plate. The polarization control panel is switchable between a first state in which light incident on the polarization control panel has its polarization direction changed and is transmitted accordingly and a second state in which the incident light has its polarization direction maintained and is transmitted accordingly. The polarization plate transmits a component polarized in the first direction or a component polarized in the second direction, in light incident on the polarization plate. The optical layer disturbs a polarization direction of light incident on the optical layer and transmits the light accordingly.
    Type: Grant
    Filed: September 23, 2020
    Date of Patent: September 27, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Toshiharu Oishi
  • Publication number: 20210001778
    Abstract: A display device includes: a display panel, a reflective polarization plate, a polarization control panel, a polarization plate, and an optical layer arranged in a stated order. The reflective polarization plate transmits a component polarized in the first direction and reflects a component polarized in the second direction, in light incident on the reflective polarization plate. The polarization control panel is switchable between a first state in which light incident on the polarization control panel has its polarization direction changed and is transmitted accordingly and a second state in which the incident light has its polarization direction maintained and is transmitted accordingly. The polarization plate transmits a component polarized in the first direction or a component polarized in the second direction, in light incident on the polarization plate. The optical layer disturbs a polarization direction of light incident on the optical layer and transmits the light accordingly.
    Type: Application
    Filed: September 23, 2020
    Publication date: January 7, 2021
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventor: Toshiharu OISHI
  • Publication number: 20170276838
    Abstract: An anti-reflection member has reflection characteristics wherein a specular reflection component of reflected light is 0.15% or less and a diffuse reflection component of the reflected light is in a range from 0.25% to 0.65%, inclusive.
    Type: Application
    Filed: September 8, 2015
    Publication date: September 28, 2017
    Inventors: TOSHIHARU OISHI, TAKAHIDE FUJIMOTO
  • Publication number: 20170235176
    Abstract: The liquid crystal display device includes a transparent cover, a first polarizing plate with retardation function, an optical device, and a liquid crystal panel. The first polarizing plate with retardation function is in a form of a film, and is obtained by laminating, from the front side, a cover film, a polarizer layer, and a cover film with retardation function for changing the polarization state of transmitted light. The first polarizing plate with retardation function and the transparent cover are bonded by using a transparent adhesive layer. The second polarizing plate with retardation function has a configuration in which a cover film with retardation function for changing the polarization state of transmitted light, a polarizer layer, and a cover film are laminated, and is bonded to the liquid crystal section with a transparent adhesive layer being interposed between the second polarizing plate with retardation function and the liquid crystal section.
    Type: Application
    Filed: August 28, 2015
    Publication date: August 17, 2017
    Inventors: TOSHIHARU OISHI, TAKAHIDE FUJIMOTO
  • Publication number: 20170205539
    Abstract: An anti-reflection member includes an anti-glare layer including a fine irregular structure, and an anti-reflection layer formed over the anti-glare layer and including a plurality of films laminated on each other. In the anti-glare layer, a surface of the fine irregular structure having an inclination angle that results in a film thickness variation of the anti-reflection layer falling within ±20%, inclusive, in terms of film thickness occupies 60% or greater of an area in which the fine irregular structure is formed. The film thickness variation of the anti-reflection layer originates from a variation in the inclination angle of the surface of the fine irregular structure.
    Type: Application
    Filed: September 2, 2015
    Publication date: July 20, 2017
    Inventors: TOSHIHARU OISHI, TAKAHIDE FUJIMOTO
  • Publication number: 20170203693
    Abstract: An electronic mirror device for displaying an image captured by a camera mounted to a vehicle includes a liquid crystal display having a display surface, a retarder, and a cholesteric liquid crystal layer. The retarder is disposed opposite the display surface of the liquid crystal display, and circularly polarizes a liquid crystal image emitted from the liquid crystal display. The cholesteric liquid crystal layer is disposed on the opposite side of the retarder from the liquid crystal display. The liquid crystal image circularly polarized by the retarder passes through the cholesteric liquid crystal layer.
    Type: Application
    Filed: May 12, 2015
    Publication date: July 20, 2017
    Inventor: TOSHIHARU OISHI
  • Publication number: 20170080868
    Abstract: An electronic mirror device has a display device that is mounted on a mounting position of a rear view mirror in an interior of a vehicle and displays an image taken by a camera mounted on the vehicle. The display device has a body case having an opening, and a display unit that is mounted in the body case. The display unit has a video display unit, and a half mirror. The video display unit has a display surface facing an opening of the body case. The half mirror is disposed closer to the opening of the body case than to the video display unit, and apart from the display surface. A gap between the half mirror and the video display unit is smaller at least at one of both ends of the half mirror in a horizontal direction than at a center of the half mirror.
    Type: Application
    Filed: June 4, 2015
    Publication date: March 23, 2017
    Applicant: Panasonic Intellectual Property Management Co., Ltd
    Inventor: TOSHIHARU OISHI
  • Patent number: 8026653
    Abstract: A display device provided with a screen, comprising: an optical filter having a blind sheet that comprises a plurality of semitranslucent layers having translucence arranged side-by-side extending in a horizontal direction and having a predetermined thickness in a vertical direction, and a plurality of transparent layers which are disposed between the semitranslucent layers and which are of a higher translucency than that of the semitranslucent layers and of a greater thickness than the thickness of the semitranslucent layers; and an adhesive member for sticking the optical filter to the screen, wherein the ratio of the transmittance of a limit angle of the screen with respect to the transmittance of the optical filter at the center of the screen is at least 0.10 and not more than 0.50.
    Type: Grant
    Filed: June 20, 2007
    Date of Patent: September 27, 2011
    Assignee: Panasonic Corporation
    Inventors: Toshiharu Oishi, Minoru Higuchi, Takahide Fujimoto, Akihiko Horita, Ryusuke Fukushima, Eishi Mizobata
  • Publication number: 20110228401
    Abstract: A body antireflection layer is provided on a display surface of a display device body. A first antireflection layer and a second antireflection layer are provided on both sides of an optical filter that is opposed to the display surface by a predetermined gap. A light-blocking screen frame layer is provided on the optical filter between a light-transmissive base and the first antireflection layer near the display surface at a peripheral area corresponding to an outer periphery of the display device body. A color difference between a position of the screen frame layer and a position of a display area of the display device body is 40 or less. A border between the display area and the screen frame layer becomes difficult to be visible, so that the optical filter can be recognized by users as an integral surface having no border over the entire surface of the optical filter.
    Type: Application
    Filed: November 13, 2008
    Publication date: September 22, 2011
    Applicant: PANASONIC CORPORATION
    Inventors: Ryusuke Fukushima, Toshiharu Oishi, Takahide Fujimoto, Hiroaki Yoshimatsu
  • Patent number: 8008846
    Abstract: An optical filter 17 is attached to the display screen surface of a flat display panel 3 of a flat display apparatus. The optical filter 17 is constituted of a lamination of an electromagnetic-wave blocking sheet 17A, an infrared-radiation absorbing and color-tone correcting sheet 17B and an ambient light antireflective sheet 17C.
    Type: Grant
    Filed: January 22, 2010
    Date of Patent: August 30, 2011
    Assignee: Panasonic Corporation
    Inventors: Toshiharu Oishi, Akihiko Horita, Ryusuke Fukushima
  • Patent number: 7986081
    Abstract: An optical filter 17 is attached to the display screen surface of a flat display panel 3 of a flat display apparatus. The optical filter 17 is constituted of a lamination of an electromagnetic-wave blocking sheet 17A, an infrared-radiation absorbing and color-tone correcting sheet 17B and an ambient light antireflective sheet 17C.
    Type: Grant
    Filed: January 22, 2010
    Date of Patent: July 26, 2011
    Assignee: Panasonic Corporation
    Inventors: Toshiharu Oishi, Akihiko Horita, Ryusuke Fukushima
  • Patent number: 7768182
    Abstract: An optical filter 17 is attached to the display screen surface of a flat display panel 3 of a flat display apparatus. The optical filter 17 is constituted of a lamination of an electromagnetic-wave blocking sheet 17A, an infrared-radiation absorbing and color-tone correcting sheet 17B and an ambient light antireflective sheet 17C.
    Type: Grant
    Filed: November 13, 2007
    Date of Patent: August 3, 2010
    Assignee: Panasonic Corporation
    Inventors: Toshiharu Oishi, Akihiko Horita, Ryusuke Fukushima
  • Publication number: 20100149779
    Abstract: An optical filter 17 is attached to the display screen surface of a flat display panel 3 of a flat display apparatus. The optical filter 17 is constituted of a lamination of an electromagnetic-wave blocking sheet 17A, an infrared-radiation absorbing and color-tone correcting sheet 17B and an ambient light antireflective sheet 17C.
    Type: Application
    Filed: January 22, 2010
    Publication date: June 17, 2010
    Applicant: PANASONIC CORPORATION
    Inventors: Toshiharu Oishi, Akihiko Horita, Ryusuke Fukushima
  • Publication number: 20100118391
    Abstract: An optical filter 17 is attached to the display screen surface of a flat display panel 3 of a flat display apparatus. The optical filter 17 is constituted of a lamination of an electromagnetic-wave blocking sheet 17A, an infrared-radiation absorbing and color-tone correcting sheet 17B and an ambient light antireflective sheet 17C.
    Type: Application
    Filed: January 22, 2010
    Publication date: May 13, 2010
    Applicant: PANASONIC CORPORATION
    Inventors: Toshiharu Oishi, Akihiko Horita, Ryusuke Fukushima
  • Publication number: 20100118478
    Abstract: An optical filter 17 is attached to the display screen surface of a flat display panel 3 of a flat display apparatus. The optical filter 17 is constituted of a lamination of an electromagnetic-wave blocking sheet 17A, an infrared-radiation absorbing and color-tone correcting sheet 17B and an ambient light antireflective sheet 17C.
    Type: Application
    Filed: January 22, 2010
    Publication date: May 13, 2010
    Applicant: PANASONIC CORPORATION
    Inventors: Toshiharu Oishi, Akihiko Horita, Ryusuke Fukushima
  • Publication number: 20100067115
    Abstract: A display device provided with a screen, comprising: an optical filter having a blind sheet that comprises a plurality of semitranslucent layers having translucence arranged side-by-side extending in a horizontal direction and having a predetermined thickness in a vertical direction, and a plurality of transparent layers which are disposed between the semitranslucent layers and which are of a higher translucency than that of the semitranslucent layers and of a greater thickness than the thickness of the semitranslucent layers; and an adhesive member for sticking the optical filter to the screen, wherein the ratio of the transmittance of a limit angle of the screen with respect to the transmittance of the optical filter at the center of the screen is at least 0.10 and not more than 0.50.
    Type: Application
    Filed: June 20, 2007
    Publication date: March 18, 2010
    Applicant: Pioneer Corporation
    Inventor: Toshiharu OISHI
  • Publication number: 20080180016
    Abstract: An optical filter 17 is attached to the display screen surface of a flat display panel 3 of a flat display apparatus. The optical filter 17 is constituted of a lamination of an electromagnetic-wave blocking sheet 17A, an infrared-radiation absorbing and color-tone correcting sheet 17B and an ambient light antireflective sheet 17C.
    Type: Application
    Filed: November 13, 2007
    Publication date: July 31, 2008
    Inventors: Toshiharu Oishi, Akihiko Horita, Ryusuke Fukushima
  • Patent number: 7339311
    Abstract: An optical filter 17 is attached to the display screen surface of a flat display panel 3 of a flat display apparatus. The optical filter 17 is constituted of a lamination of an electromagnetic-wave blocking sheet 17A, an infrared-radiation absorbing and color-tone correcting sheet 17B and an ambient light antireflective sheet 17C.
    Type: Grant
    Filed: December 9, 2003
    Date of Patent: March 4, 2008
    Assignee: Pioneer Corporation
    Inventors: Toshiharu Oishi, Akihiko Horita, Ryusuke Fukushima
  • Patent number: 6977709
    Abstract: A drive circuit board 11 is mounted on a side portion of a chassis 10 in a position forming an angle with a flat display panel 1. A wiring board 13 has two flections 13DA, 13DB formed in two positions. The wiring board 13 is placed in a front corner of the flat display apparatus and between the flat display panel 1 and the drive circuit board 11, which are placed at angles on the chassis 10, in such a way that electrode terminals 13B and 13C are respectively connected to the flat display panel 1 and the drive circuit board 11, and a board body 13A is bent by the flections 13DA, 13DB, provided in the two positions, in the direction of projecting toward the front of the flat display panel 1.
    Type: Grant
    Filed: December 1, 2003
    Date of Patent: December 20, 2005
    Assignee: Pioneer Corporation
    Inventors: Yukiharu Miyamura, Koichi Kaneko, Sadao Yokoi, Yousuke Tagaya, Toshiharu Oishi
  • Patent number: 6833674
    Abstract: In a plasma display panel device including a plasma display panel and a drive circuit for driving the plasma display panel, a plurality of circuit boards (4, 13) are provided, and electronic components (E1′, E1″, E2′) making up the drive circuit are mounted separately on the plurality of circuit boards (4, 13).
    Type: Grant
    Filed: June 7, 2001
    Date of Patent: December 21, 2004
    Assignees: Pioneer Corporation, Pioneer Display Products Corp.
    Inventors: Koichi Kaneko, Sadao Yokoi, Toshiharu Oishi, Daisuke Takao