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).
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Patent number: 10007147Abstract: 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: GrantFiled: October 24, 2016Date of Patent: June 26, 2018Assignee: FUNAI ELECTRIC CO., LTD.Inventors: Hiromasa Sasaoka, Noritaka Tanabe, Naoki Nitanai
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Publication number: 20170115530Abstract: 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: ApplicationFiled: October 24, 2016Publication date: April 27, 2017Inventors: Hiromasa SASAOKA, Noritaka TANABE, Naoki NITANAI
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Patent number: 9297979Abstract: 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: GrantFiled: July 10, 2013Date of Patent: March 29, 2016Assignee: Funai Electric Co., Ltd.Inventors: Kazuya Harada, Tetsuo Nishidate, Toyoshi Nogami, Hiromasa Sasaoka
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Patent number: 9158058Abstract: 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: GrantFiled: September 12, 2013Date of Patent: October 13, 2015Assignee: Funai Electric Co., Ltd.Inventor: Hiromasa Sasaoka
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Publication number: 20150055053Abstract: 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: ApplicationFiled: August 12, 2014Publication date: February 26, 2015Inventors: Hiromasa Sasaoka, Hirofumi Horiuchi
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Publication number: 20150055056Abstract: 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: ApplicationFiled: August 6, 2014Publication date: February 26, 2015Inventors: Hirofumi HORIUCHI, Hiromasa SASAOKA, Yuichi HAYASHI
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Patent number: 8830407Abstract: 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: GrantFiled: October 4, 2013Date of Patent: September 9, 2014Assignee: Funai Electric Co., Ltd.Inventors: Hiromasa Sasaoka, Yuto Suzuki, Akifumi Kono
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Publication number: 20140247620Abstract: 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: ApplicationFiled: February 19, 2014Publication date: September 4, 2014Applicant: Funai Electric Co., Ltd.Inventors: Hiromasa SASAOKA, Naoki HONGO
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Publication number: 20140218618Abstract: 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: ApplicationFiled: January 28, 2014Publication date: August 7, 2014Applicant: Funai Electric Co., Ltd.Inventors: Hiromasa SASAOKA, Akifumi KONO
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Publication number: 20140118630Abstract: 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: ApplicationFiled: October 4, 2013Publication date: May 1, 2014Applicant: Funai Electric Co., Ltd.Inventors: Hiromasa SASAOKA, Yuto SUZUKI, Akifumi KONO
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Publication number: 20140118627Abstract: 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: ApplicationFiled: September 12, 2013Publication date: May 1, 2014Applicant: Funai Electric Co., Ltd.Inventor: Hiromasa SASAOKA
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Publication number: 20140016449Abstract: 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: ApplicationFiled: July 10, 2013Publication date: January 16, 2014Inventors: Kazuya HARADA, Tetsuo NISHIDATE, Toyoshi NOGAMI, Hiromasa SASAOKA
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Patent number: 8141110Abstract: 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: GrantFiled: March 31, 2009Date of Patent: March 20, 2012Assignee: Funai Electric Co., Ltd.Inventors: Hiromasa Sasaoka, Teruaki Sogawa, Fumiaki Mori
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Patent number: 8024749Abstract: 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: GrantFiled: April 16, 2009Date of Patent: September 20, 2011Assignee: Funai Electric Co., Ltd.Inventors: Hiromasa Sasaoka, Fumiaki Mori
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Patent number: 7924688Abstract: 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: GrantFiled: October 2, 2007Date of Patent: April 12, 2011Assignee: Funai Electric Co., Ltd.Inventors: Shinya Hatano, Kazuhiro Takahashi, Hiromasa Sasaoka, Ryozo Hosoda
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Patent number: 7903506Abstract: 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: GrantFiled: August 21, 2007Date of Patent: March 8, 2011Assignee: Funai Electric Co., Ltd.Inventors: Ryozo Hosoda, Kazuhiro Takahashi, Shinya Hatano, Hiromasa Sasaoka
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Patent number: 7787340Abstract: 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: GrantFiled: October 2, 2007Date of Patent: August 31, 2010Assignee: Funai Electric Co., Ltd.Inventors: Kazuhiro Takahashi, Hiromasa Sasaoka, Shinya Hatano, Ryozo Hosoda
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Publication number: 20090284971Abstract: 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: ApplicationFiled: March 31, 2009Publication date: November 19, 2009Inventors: Hiromasa SASAOKA, Teruaki SOGAWA, Fumiaki MORI
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Publication number: 20090274030Abstract: 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: ApplicationFiled: April 16, 2009Publication date: November 5, 2009Inventors: Hiromasa SASAOKA, Fumiak MORI
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Patent number: RE48493Abstract: 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: GrantFiled: January 25, 2019Date of Patent: March 30, 2021Assignee: FUNAI ELECTRIC CO., LTD.Inventors: Hiromasa Sasaoka, Noritaka Tanabe, Naoki Nitanai