Patents by Inventor Hiromasa Sasaoka

Hiromasa Sasaoka 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: 10007147
    Abstract: A display device comprises a display component, a light source, an optical element, and a first reflective member. The optical element is positioned in a light emission direction from the light source. The first reflective member is positioned rearward of the display component. The first reflective member includes a first opening and a second opening that is continuous with the first opening and in which the light source is positioned. A width of the optical element is smaller than a width of the first opening and is larger than a width of the second opening in a first direction.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: June 26, 2018
    Assignee: FUNAI ELECTRIC CO., LTD.
    Inventors: Hiromasa Sasaoka, Noritaka Tanabe, Naoki Nitanai
  • Publication number: 20170115530
    Abstract: A display device comprises a display component, a light source, an optical element, and a first reflective member. The optical element is positioned in a light emission direction from the light source. The first reflective member is positioned rearward of the display component. The first reflective member includes a first opening and a second opening that is continuous with the first opening and in which the light source is positioned. A width of the optical element is smaller than a width of the first opening and is larger than a width of the second opening in a first direction.
    Type: Application
    Filed: October 24, 2016
    Publication date: April 27, 2017
    Inventors: Hiromasa SASAOKA, Noritaka TANABE, Naoki NITANAI
  • Patent number: 9297979
    Abstract: A lens driving device includes a lens holder for holding a lens, a supporter portion for supporting the lens holder in a movable manner, a drive portion for driving the lens holder, and an elastic portion for supplying the lens holder with a force in a predetermined direction. The supporter portion includes a shaft engaging with a bearing of the lens holder, and the force in a predetermined direction includes a force in a direction perpendicular to the shaft and a force in a direction to rotate the lens holder about the shaft.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: March 29, 2016
    Assignee: Funai Electric Co., Ltd.
    Inventors: Kazuya Harada, Tetsuo Nishidate, Toyoshi Nogami, Hiromasa Sasaoka
  • Patent number: 9158058
    Abstract: This display device includes a display device body, a display portion arranged on the front side of the display device body, a light source substrate, a light guide plate arranged on the rear side of the display portion to be opposed to the light source substrate mounted with the light source, having a light incident surface including a side surface receiving light emitted from the light source, a heat sink arranged on the rear side of the light guide plate, including a light source substrate fixing portion to which the light source substrate is attached and fixed by a double-faced adhesive tape, and a substrate pressing portion pressing the front end surface of the light source substrate attached to the light source substrate fixing portion in a direction toward the bottom surface of the heat sink in a surface contact state.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: October 13, 2015
    Assignee: Funai Electric Co., Ltd.
    Inventor: Hiromasa Sasaoka
  • Publication number: 20150055053
    Abstract: A display device includes a display panel that displays an image on a screen on a front surface of the display panel, a backlight unit that covers a back surface side of the display panel and irradiates light toward the back surface side of the display panel, a back surface member disposed on a back surface side of the backlight unit, a frame-shaped member that presses a peripheral edge portion of the display panel from a front surface side of the display panel and is fixed to the back surface member, and a support member provided between the display panel and the backlight unit. The support member presses at least a portion of a peripheral edge portion of the backlight unit from the front surface side.
    Type: Application
    Filed: August 12, 2014
    Publication date: February 26, 2015
    Inventors: Hiromasa Sasaoka, Hirofumi Horiuchi
  • Publication number: 20150055056
    Abstract: A display device includes a display panel and a backlight unit. The backlight unit has a light source that emits light, a light guide plate that guides the light from a side face of the light guide plate to a front face to the light guide plate to emit the light toward a rear face of the display panel, an optical sheet that is disposed on a front side relative to the light guide plate, and a first reflection member that is disposed between an end portion of the light guide plate near the light source and an end portion of the optical sheet near the light source, and reflects the light from the light source. One of a rear face of the first reflection member and the front face of the light guide plate has at least one absorption processing region that absorbs the light.
    Type: Application
    Filed: August 6, 2014
    Publication date: February 26, 2015
    Inventors: Hirofumi HORIUCHI, Hiromasa SASAOKA, Yuichi HAYASHI
  • Patent number: 8830407
    Abstract: A display device includes a display component, a light source, a light guide plate, a spacer member, and a biasing member. The display component displays images. The light source emits light. The light guide plate guides the light emitted from the light source to the display component. The light guide plate has a light incident face on which the light emitted from the light source is directly incident. The spacer member is disposed in a region other than where the light guide plate and the light source are opposite each other such that the spacer member maintains a specific spacing between the light source and the light incident face of the light guide plate. The biasing member is arranged to bias one of the light source and the light guide plate towards the other of the light source and the light guide plate.
    Type: Grant
    Filed: October 4, 2013
    Date of Patent: September 9, 2014
    Assignee: Funai Electric Co., Ltd.
    Inventors: Hiromasa Sasaoka, Yuto Suzuki, Akifumi Kono
  • Publication number: 20140247620
    Abstract: A display apparatus includes an LCD panel, a resin rear cabinet facing a back of the LCD panel, and a backlight unit that is supported by the rear cabinet. The backlight unit includes a light source, a light guide plate into which light from the light source enters through a side surface and exits through a main surface toward the back of the LCD panel, and a heat sink supported by the rear cabinet and attached to the light source. The rear cabinet includes an integrally formed resin protrusion passing through the heat sink and supporting the light guide plate, and positioning of the light source is determined by a contact surface thereof with the heat sink and positioning of the light guide plate is determined by a contact surface thereof with the protrusion so that optical axes of the light source and the light guide plate are aligned.
    Type: Application
    Filed: February 19, 2014
    Publication date: September 4, 2014
    Applicant: Funai Electric Co., Ltd.
    Inventors: Hiromasa SASAOKA, Naoki HONGO
  • Publication number: 20140218618
    Abstract: A display device includes a display device body, a display portion arranged on the front side, a light source, a light source substrate, a light guide plate having a light incident surface, and a heat sink arranged to be opposed to the light incident surface of the light guide plate between the light guide plate and the light source substrate, including a light source arrangement hole configured to arrange the light source and a spacer portion arranged to be opposed to the light incident surface of the light guide plate between the light guide plate and the light source substrate and keeping an interval between the light incident surface of the light guide plate and the light source at a prescribed interval.
    Type: Application
    Filed: January 28, 2014
    Publication date: August 7, 2014
    Applicant: Funai Electric Co., Ltd.
    Inventors: Hiromasa SASAOKA, Akifumi KONO
  • Publication number: 20140118630
    Abstract: A display device includes a display component, a light source, a light guide plate, a spacer member, and a biasing member. The display component displays images. The light source emits light. The light guide plate guides the light emitted from the light source to the display component. The light guide plate has a light incident face on which the light emitted from the light source is directly incident. The spacer member is disposed in a region other than where the light guide plate and the light source are opposite each other such that the spacer member maintains a specific spacing between the light source and the light incident face of the light guide plate. The biasing member is arranged to bias one of the light source and the light guide plate towards the other of the light source and the light guide plate.
    Type: Application
    Filed: October 4, 2013
    Publication date: May 1, 2014
    Applicant: Funai Electric Co., Ltd.
    Inventors: Hiromasa SASAOKA, Yuto SUZUKI, Akifumi KONO
  • Publication number: 20140118627
    Abstract: This display device includes a display device body, a display portion arranged on the front side of the display device body, a light source substrate, a light guide plate arranged on the rear side of the display portion to be opposed to the light source substrate mounted with the light source, having a light incident surface including a side surface receiving light emitted from the light source, a heat sink arranged on the rear side of the light guide plate, including a light source substrate fixing portion to which the light source substrate is attached and fixed by a double-faced adhesive tape, and a substrate pressing portion pressing the front end surface of the light source substrate attached to the light source substrate fixing portion in a direction toward the bottom surface of the heat sink in a surface contact state.
    Type: Application
    Filed: September 12, 2013
    Publication date: May 1, 2014
    Applicant: Funai Electric Co., Ltd.
    Inventor: Hiromasa SASAOKA
  • Publication number: 20140016449
    Abstract: A lens driving device includes a lens holder for holding a lens, a supporter portion for supporting the lens holder in a movable manner, a drive portion for driving the lens holder, and an elastic portion for supplying the lens holder with a force in a predetermined direction. The supporter portion includes a shaft engaging with a bearing of the lens holder, and the force in a predetermined direction includes a force in a direction perpendicular to the shaft and a force in a direction to rotate the lens holder about the shaft.
    Type: Application
    Filed: July 10, 2013
    Publication date: January 16, 2014
    Inventors: Kazuya HARADA, Tetsuo NISHIDATE, Toyoshi NOGAMI, Hiromasa SASAOKA
  • Patent number: 8141110
    Abstract: A light-source holder used to hold a light source disposed in an optical pickup comprises: a holder main body portion; a through hole which penetrates the holder main body portion and in which a light source is fitted; a first hold potion that holds a first light source if the first light source is fitted in the through hole from a first side, one of first and second sides of the holder main body portion which are opposite to each other with respect to the holder main body portion; and a second hold portion that holds a second light source if the second light source is fitted in the through hole from a second side, one of the first and second sides of the holder main body portion which are opposite to each other with respect to the holder main body portion.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: March 20, 2012
    Assignee: Funai Electric Co., Ltd.
    Inventors: Hiromasa Sasaoka, Teruaki Sogawa, Fumiaki Mori
  • Patent number: 8024749
    Abstract: A base of an optical pickup includes a first bearing portion through which one of two guide shafts disposed in parallel to each other is inserted and a second bearing portion through which the other guide shaft is inserted, and is slidable along the two guide shafts. Under the first guide shaft that is inserted through the first bearing portion, a nut hold portion for holding a nut that connects a member of a drive mechanism for driving the base and the base to each other is disposed on the base. The nut hold portion includes an insertion opening that allows the nut to be inserted along a direction substantially parallel to a longitudinal direction of the first guide shaft.
    Type: Grant
    Filed: April 16, 2009
    Date of Patent: September 20, 2011
    Assignee: Funai Electric Co., Ltd.
    Inventors: Hiromasa Sasaoka, Fumiaki Mori
  • Patent number: 7924688
    Abstract: An optical pickup includes a first objective lens, a second objective lens having a numerical aperture different from that of the first objective lens, and an objective lens holder that holds the objective lenses. The first objective lens is attached to the objective lens holder via a spacer. The objective lens holder has a first fixture hole that receives the spacer with the first objective lens and a second fixture hole that receives the second objective lens. The first fixture hole is provided with a spacer supporting portion in which the spacer is inserted in a rotatable manner.
    Type: Grant
    Filed: October 2, 2007
    Date of Patent: April 12, 2011
    Assignee: Funai Electric Co., Ltd.
    Inventors: Shinya Hatano, Kazuhiro Takahashi, Hiromasa Sasaoka, Ryozo Hosoda
  • Patent number: 7903506
    Abstract: The present invention provides an optical pickup device capable of properly suppressing coma aberration which occurs due to a relative tilt error between objective lenses. The optical pickup device includes: first and second objective lenses having different optical characteristics; a lens holder provided with first and second lens receiving cylindrical parts to which the first and second objective lenses are attached so that distance from the first objective lens to an optical recording medium becomes shorter than distance from the second objective lens to the optical recording medium without overlapping the objective lenses; and a buffer member formed in a cylindrical shape so as to surround the periphery of the first objective lens, and having a projection for preventing collision between the first objective lens and the optical recording medium, the projection being provided at an end on the optical recording medium side.
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: March 8, 2011
    Assignee: Funai Electric Co., Ltd.
    Inventors: Ryozo Hosoda, Kazuhiro Takahashi, Shinya Hatano, Hiromasa Sasaoka
  • Patent number: 7787340
    Abstract: The optical pickup includes two objective lenses, and an objective lens holder that holds the two objective lenses. The objective lens holder has two fixture holes that pass through from the lower surface to the upper surface to which the two objective lenses are attached at an upper portion with space between them. The fixture hole is provided with a fixed lens supporting portion and two movable lens supporting portions for supporting the objective lens and adjusting tilt degree thereof. The movable lens supporting portion includes a through hole that passes through to the upper portion of the fixture hole and a column member that is inserted in the through hole in a slidable manner.
    Type: Grant
    Filed: October 2, 2007
    Date of Patent: August 31, 2010
    Assignee: Funai Electric Co., Ltd.
    Inventors: Kazuhiro Takahashi, Hiromasa Sasaoka, Shinya Hatano, Ryozo Hosoda
  • Publication number: 20090284971
    Abstract: A light-source holder used to hold a light source disposed in an optical pickup comprises: a holder main body portion; a through hole which penetrates the holder main body portion and in which a light source is fitted; a first hold potion that holds a first light source if the first light source is fitted in the through hole from a first side, one of first and second sides of the holder main body portion which are opposite to each other with respect to the holder main body portion; and a second hold portion that holds a second light source if the second light source is fitted in the through hole from a second side, one of the first and second sides of the holder main body portion which are opposite to each other with respect to the holder main body portion.
    Type: Application
    Filed: March 31, 2009
    Publication date: November 19, 2009
    Inventors: Hiromasa SASAOKA, Teruaki SOGAWA, Fumiaki MORI
  • Publication number: 20090274030
    Abstract: A base of an optical pickup includes a first bearing portion through which one of two guide shafts disposed in parallel to each other is inserted and a second bearing portion through which the other guide shaft is inserted, and is slidable along the two guide shafts. Under the first guide shaft that is inserted through the first bearing portion, a nut hold portion for holding a nut that connects a member of a drive mechanism for driving the base and the base to each other is disposed on the base. The nut hold portion includes an insertion opening that allows the nut to be inserted along a direction substantially parallel to a longitudinal direction of the first guide shaft.
    Type: Application
    Filed: April 16, 2009
    Publication date: November 5, 2009
    Inventors: Hiromasa SASAOKA, Fumiak MORI
  • Patent number: RE48493
    Abstract: A display device comprises a display component, a light source, an optical element, and a first reflective member. The optical element is positioned in a light emission direction from the light source. The first reflective member is positioned rearward of the display component. The first reflective member includes a first opening and a second opening that is continuous with the first opening and in which the light source is positioned. A width of the optical element is smaller than a width of the first opening and is larger than a width of the second opening in a first direction.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: March 30, 2021
    Assignee: FUNAI ELECTRIC CO., LTD.
    Inventors: Hiromasa Sasaoka, Noritaka Tanabe, Naoki Nitanai