Patents by Inventor Haruyoshi Yamada

Haruyoshi Yamada 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: 9258538
    Abstract: A projector modulates light emitted from a light source and projects the light, the projector including an image acquiring unit, a modulating unit, a light adjusting mechanism, and a light adjusting control unit. The image acquiring unit acquires an image from an image source. The modulating unit modulates the light emitted from the light sources, based on the image acquired by the image acquiring unit. The light adjustment mechanism reduces an amount of light incident on the modulating unit from the light source. The light adjustment control unit performs light adjustment control by the light adjustment mechanism, based on the image acquired by the image acquiring unit. The light adjustment control unit performs control to increase the amount of light incident of the modulating unit when the light adjustment mechanism maintains a predetermined light-adjusted state.
    Type: Grant
    Filed: April 21, 2015
    Date of Patent: February 9, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Tatsuhiko Nobori, Toru Katahira, Katsuhiro Matsuyama, Haruyoshi Yamada
  • Publication number: 20150229895
    Abstract: A projector modulates light emitted from a light source and projects the light, the projector including an image acquiring unit, a modulating unit, a light adjusting mechanism, and a light adjusting control unit. The image acquiring unit acquires an image from an image source. The modulating unit modulates the light emitted from the light sources, based on the image acquired by the image acquiring unit. The light adjustment mechanism reduces an amount of light incident on the modulating unit from the light source. The light adjustment control unit performs light adjustment control by the light adjustment mechanism, based on the image acquired by the image acquiring unit. The light adjustment control unit performs control to increase the amount of light incident of the modulating unit when the light adjustment mechanism maintains a predetermined light-adjusted state.
    Type: Application
    Filed: April 21, 2015
    Publication date: August 13, 2015
    Inventors: Tatsuhiko Nobori, Toru Katahira, Katsuhiro Matsuyama, Haruyoshi Yamada
  • Patent number: 9039200
    Abstract: A projector which modulates light emitted from a light source and projects the light, the projector including: an image acquiring unit for acquiring an image from an image source; a modulating unit for modulating the light emitted from the light sources, based on the image acquired by the image acquiring unit; a light adjustment mechanism for reducing an amount of light incident on the modulating unit from the light source; and a light adjustment control unit for performing light adjustment control by the light adjustment mechanism, based on the image acquired by the image acquiring unit; wherein the light adjustment control unit stops execution of the light adjustment control when at least one of an operating state of the projector and a state of the image acquired by the image acquiring unit meets a predetermined condition.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: May 26, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Tatsuhiko Nobori, Toru Katahira, Katsuhiro Matsuyama, Haruyoshi Yamada
  • Publication number: 20130050291
    Abstract: A projector which modulates light emitted from a light source and projects the light, the projector including: an image acquiring unit for acquiring an image from an image source; a modulating unit for modulating the light emitted from the light sources, based on the image acquired by the image acquiring unit; a light adjustment mechanism for reducing an amount of light incident on the modulating unit from the light source; and a light adjustment control unit for performing light adjustment control by the light adjustment mechanism, based on the image acquired by the image acquiring unit; wherein the light adjustment control unit stops execution of the light adjustment control when at least one of an operating state of the projector and a state of the image acquired by the image acquiring unit meets a predetermined condition.
    Type: Application
    Filed: August 28, 2012
    Publication date: February 28, 2013
    Applicant: Seiko Epson Corporation
    Inventors: Tatsuhiko NOBORI, Toru KATAHIRA, Katsuhiro MATSUYAMA, Haruyoshi YAMADA
  • Patent number: 7280157
    Abstract: To provide an image display device, such as a liquid crystal receiver or the like, that has a printer incorporated therein for printing a displayed image on the spot, upon switching-on of a television receiver, an image forming device is activated and images or the like are projected onto a display screen. Here, by appropriately operating an operation section or the like, a command requiring images being displayed on the display screen to be printed out, is inputted into the image forming device. As a result, the printing command signal is issued from the data processing section provided in the output section to the printer unit, together with an image file appropriately converted from video signals. The printer unit develops the input image file, prints the corresponding image, and outputs it.
    Type: Grant
    Filed: March 10, 2004
    Date of Patent: October 9, 2007
    Assignee: Seiko Epson Corporation
    Inventors: Haruyoshi Yamada, Chihiro Tsukinokizawa
  • Patent number: 7215470
    Abstract: There is provided a rear projector capable of preventing entry of dust. A cabinet of the rear projector has a front side thereof formed with an opening. A screen panel slightly larger in size than the opening is attached to the front side of the cabinet such that the opening edge portion of the opening of the cabinet and the periphery of the screen panel are opposed to each other. The screen panel receives projection light projected from behind for image display, and thereby displays an image thereon. A projector unit is disposed within the cabinet, for projecting the projection light. A dust-proofing sealing member is disposed between the periphery of the screen panel and the opening edge portion, the screen panel is attached to the housing.
    Type: Grant
    Filed: February 18, 2004
    Date of Patent: May 8, 2007
    Assignee: Seiko Epson Corporation
    Inventors: Shigeki Kato, Haruyoshi Yamada, Shigeyuki Seki
  • Patent number: 7066610
    Abstract: In order to provide a rear projector capable of facilitating position adjustment of an image displayed on a screen and optimizing dispersion of the aspect ratio of the projected image caused by tolerance of components by adjusting the position of the image, a support member (200) is provided with a lateral position adjuster (202) as a planar position adjusting mechanism attached on a support plate of an interior unit in an opposing manner, an inclination adjuster (203) as an inclination position adjusting mechanism vertically provided on the lateral position adjuster (202), and a rotary position adjuster (204) as a rotary position adjusting mechanism attached to the inclination adjuster (203) slanted downward toward rear side.
    Type: Grant
    Filed: October 8, 2004
    Date of Patent: June 27, 2006
    Assignee: Seiko Epson Corporation
    Inventors: Haruyoshi Yamada, Jun Arai
  • Patent number: 6902275
    Abstract: A pair of openings (302) symmetrically disposed around an optical axis of the reflector (412) is formed on a contact surface of a light-transmissive plate (301) and the reflector (412) and a cooling channel (340) for introducing cooling air to a source lamp (411) through the pair of openings (302) and a first and a second cooling channel shutters (350, 360) for shutting the cooling channel (340) when the case is detached from a projector (1) are provided on a case (300). The source lamp (411) can be efficiently cooled, so that the life of the source lamp (411) can be lengthened. Even when a light-emitting tube of the source lamp (411) is exploded while using the projector (1), the fragments of the light-emitting tube do not fall outside in exchanging the light source (413), and cooling efficiency of the source lamp (411) is not impaired.
    Type: Grant
    Filed: December 9, 2003
    Date of Patent: June 7, 2005
    Assignee: Seiko Epson Corporation
    Inventors: Haruyoshi Yamada, Nobuo Watanabe
  • Publication number: 20050110957
    Abstract: In order to provide a rear projector capable of facilitating position adjustment of an image displayed on a screen and optimizing dispersion of the aspect ratio of the projected image caused by tolerance of components by adjusting the position of the image, a support member (200) is provided with a lateral position adjuster (202) as a planar position adjusting mechanism attached on a support plate of an interior unit in an opposing manner, an inclination adjuster (203) as an inclination position adjusting mechanism vertically provided on the lateral position adjuster (202), and a rotary position adjuster (204) as a rotary position adjusting mechanism attached to the inclination adjuster (203) slanted downward toward rear side.
    Type: Application
    Filed: October 8, 2004
    Publication date: May 26, 2005
    Applicant: Seiko Epson Corporation
    Inventors: Haruyoshi Yamada, Jun Arai
  • Patent number: 6851810
    Abstract: A rear projector has a lower cabinet disposing an image generator and an upper cabinet for a screen body to be mounted, two woofer boxes being mounted on the front side of the lower cabinet and high-pitched sound speaker boxes being respectively mounted on the right and left lateral sides of the upper cabinet, so that, since the woofer box is disposed in the lower cabinet, vibration is not easily transferred to a screen body on the upper cabinet and a reflection mirror inside the upper cabinet, thus avoiding flicker of the image on the screen body even when great volume of sound is outputted by the woofer box.
    Type: Grant
    Filed: February 24, 2003
    Date of Patent: February 8, 2005
    Assignee: Seiko Epson Corporation
    Inventors: Jun Arai, Haruyoshi Yamada
  • Publication number: 20040252236
    Abstract: To provide an image display device, such as a liquid crystal receiver or the like, that has a printer incorporated therein for printing a displayed image on the spot, upon switching-on of a television receiver, an image forming device activated and images or the like are projected onto a display screen. Here, by appropriately operating an operation section or the like, a command requiring images being displayed on the display screen to be printed out, is inputted into the image forming device. As a result, the printing command signal is issued from the data processing section provided in the output section to the printer unit, together with an image file appropriately converted from video signals. The printer unit develops the input image file, prints the corresponding image, and outputs it.
    Type: Application
    Filed: March 10, 2004
    Publication date: December 16, 2004
    Applicant: Seiko Epson Corporation
    Inventors: Haruyoshi Yamada, Chihiro Tsukinokizawa
  • Publication number: 20040233395
    Abstract: There is provided a rear projector capable of preventing entry of dust. A cabinet of the rear projector has a front side thereof formed with an opening. A screen panel slightly larger in size than the opening is attached to the front side of the cabinet such that the opening edge portion of the opening of the cabinet and the periphery of the screen panel are opposed to each other. The screen panel receives projection light projected from behind for image display, and thereby displays an image thereon. A projector unit is disposed within the cabinet, for projecting the projection light. A dust-proofing sealing member is disposed between the periphery of the screen panel and the opening edge portion, the screen panel is attached to the housing.
    Type: Application
    Filed: February 18, 2004
    Publication date: November 25, 2004
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Shigeki Kato, Haruyoshi Yamada, Shigeyuki Seki
  • Patent number: 6814446
    Abstract: An intake opening (132L) is formed on a left lateral side (132) of a lower cabinet (13) and an exhaust opening (132R) is formed on a right lateral side (132) in a rear projector (1), where a cooling air introduced from the intake opening (132L) by a plurality of fans provided in the lower cabinet (13) flows along a front side of a screen to cool the interior of the projector to be finally discharged from the exhaust opening (132R), so that the air after cooling the interior which is discharged by the exhaust opening (132R) is prevented from entering into the intake opening (132L), thereby always introducing fresh cooling air to cool the interior efficiently.
    Type: Grant
    Filed: February 24, 2003
    Date of Patent: November 9, 2004
    Assignee: Seiko Epson Corporation
    Inventors: Haruyoshi Yamada, Jun Arai
  • Patent number: 6814449
    Abstract: In order to provide a rear projector capable of facilitating position adjustment of an image displayed on a screen and optimizing dispersion of the aspect ratio of the projected image caused by tolerance of components by adjusting the position of the image, a support member (200) is provided with a lateral position adjuster (202) as a planar position adjusting mechanism attached on a support plate of an interior unit in an opposing manner, an inclination adjuster (203) as an inclination position adjusting mechanism vertically provided on the lateral position adjuster (202), and a rotary position adjuster (204) as a rotary position adjusting mechanism attached to the inclination adjuster (203) slanted downward toward rear side.
    Type: Grant
    Filed: February 26, 2003
    Date of Patent: November 9, 2004
    Assignee: Seiko Epson Corporation
    Inventors: Haruyoshi Yamada, Jun Arai
  • Patent number: 6805446
    Abstract: A rear projector (1) has a closed space (530) including an inside of an upper cabinet (12) and an electric optical device (44), where the electric optical device (44), a sirocco fan (541) located below the electric optical device (44), a duct (542) covering the upper side of the electric optical device (44) and a heat sink (543) attached to the upper cabinet (12) are disposed and an upper cabinet cooling system (600) that cools the interior of the closed space (530) in a circulative manner is provided in the closed space (530), thereby preventing invasion of duct etc. and providing high-quality image.
    Type: Grant
    Filed: February 26, 2003
    Date of Patent: October 19, 2004
    Assignee: Seiko Epson Corporation
    Inventors: Jun Arai, Haruyoshi Yamada
  • Publication number: 20040114113
    Abstract: A pair of openings (302) symmetrically disposed around an optical axis of the reflector (412) is formed on a contact surface of a light-transmissive plate (301) and the reflector (412) and a cooling channel (340) for introducing cooling air to a source lamp (411) through the pair of openings (302) and a first and a second cooling channel shutters (350, 360) for shutting the cooling channel (340) when the case is detached from a projector (1) are provided on a case (300). The source lamp (411) can be efficiently cooled, so that the life of the source lamp (411) can be lengthened. Even when a light-emitting tube of the source lamp (411) is exploded while using the projector (1), the fragments of the light-emitting tube do not fall outside in exchanging the light source (413), and cooling efficiency of the source lamp (411) is not impaired.
    Type: Application
    Filed: December 9, 2003
    Publication date: June 17, 2004
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Haruyoshi Yamada, Nobuo Watanabe
  • Patent number: 6746125
    Abstract: A centrifugal fan (50) is provided around the light source of the projector and an exhaust duct (51) is connected to the centrifugal fan with at least one of bent portion (52) for bending exhaust stream from the centrifugal fan being formed on the exhaust duct. Since the centrifugal fan for exhausting air can be disposed at a position remote from the exhaust hole, the noise generated from the projector can be reduced even when the size of the cooling fan is increased.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: June 8, 2004
    Assignee: Seiko Epson Corporation
    Inventors: Hirohisa Nakano, Nobuo Watanabe, Haruyoshi Yamada
  • Patent number: 6698899
    Abstract: A pair of openings (302) symmetrically disposed around an optical axis of the reflector (412) is formed on a contact surface of a light-transmissive plate (301) and the reflector (412) and a cooling channel (340) for introducing cooling air to a source lamp (411) through the pair of openings (302) and a first and a second cooling channel shutters (350, 360) for shutting the cooling channel (340) when the case is detached from a projector (1) are provided on a case (300). The source lamp (411) can be efficiently cooled, so that the life of the source lamp (411) can be lengthened. Even when a light-emitting tube of the source lamp (411) is exploded while using the projector (1), the fragments of the light-emitting tube do not fall outside in exchanging the light source (413), and cooling efficiency of the source lamp (411) is not impaired.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: March 2, 2004
    Assignee: Seiko Epson Corporation
    Inventors: Haruyoshi Yamada, Nobuo Watanabe
  • Publication number: 20040021835
    Abstract: In order to provide a rear projector capable of facilitating position adjustment of an image displayed on a screen and optimizing dispersion of the aspect ratio of the projected image caused by tolerance of components by adjusting the position of the image, a support member (200) is provided with a lateral position adjuster (202) as a planar position adjusting mechanism attached on a support plate of an interior unit in an opposing manner, an inclination adjuster (203) as an inclination position adjusting mechanism vertically provided on the lateral position adjuster (202), and a rotary position adjuster (204) as a rotary position adjusting mechanism attached to the inclination adjuster (203) slanted downward toward rear side.
    Type: Application
    Filed: February 26, 2003
    Publication date: February 5, 2004
    Applicant: Seiko Epson Corporation
    Inventors: Haruyoshi Yamada, Jun Arai
  • Publication number: 20030202162
    Abstract: A rear projector (1) has a lower cabinet (13) disposing an image generator and an upper cabinet (12) for a screen body (51) to be mounted, two woofer boxes (60) being mounted on the front side of the lower cabinet (13) and high-pitched sound speaker boxes (70) being respectively mounted on the right and left lateral sides of the upper cabinet (12), so that, since the woofer box (60) is disposed in the lower cabinet (13), vibration is not easily transferred to a screen body (51) on the upper cabinet (12) and a reflection mirror inside the upper cabinet (12), thus avoiding flicker of the image on the screen body (51) even when great volume of sound is outputted by the woofer box (60).
    Type: Application
    Filed: February 24, 2003
    Publication date: October 30, 2003
    Applicant: Seiko Epson Corporation
    Inventors: Jun Arai, Haruyoshi Yamada