Patents by Inventor Yoshiki Takata

Yoshiki Takata 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).

  • Publication number: 20100134395
    Abstract: A display apparatus that can perform even a high quality moving picture display and provides improved color purity, and an illumination device used in the display apparatus are provided. The display apparatus includes: an illumination device (3) that includes a first light source (31G) that emits light of a first color and a second light source (31RB) that emits light of a second color complementary to the first color; a gate driver (24) that sequentially selects each of scanning lines GL at a cycle of 0.5 frames; a source driver (23) that, at a first half of one frame time period, writes a data signal into each of pixels of the first color, and at a latter half thereof, writes a data signal into each of pixels of the other two colors; and a switch circuit (26) that, at the first half of one frame time period, switches on the first light source while switching off the second light source, and at the latter half of the time period, switches on the second light source while switching off the first light source.
    Type: Application
    Filed: April 16, 2008
    Publication date: June 3, 2010
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Yoshiki Takata
  • Publication number: 20100128466
    Abstract: A lamp holder includes a mounting portion, a lamp holding part which is connected to the mounting portion, and includes an end capable of surrounding a peripheral surface of a lamp, and is capable of being elastically opened and deformed during attaching and detaching of the lamp. The lamp holder also includes a recessed portion positioned at a surface of the lamp holding part that is opposite to the lamp and located at a position between an end portion and a connecting region of a mounting portion, such that the recessed portion allows the lamp holding part to bend so that the end portion is displaced in a direction away from the peripheral surface of the lamp.
    Type: Application
    Filed: January 25, 2010
    Publication date: May 27, 2010
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yoshiki TAKATA, Tatsuya KUDARI
  • Patent number: 7719630
    Abstract: In a backlight apparatus, laminated optical sheets are housed in a tray such that a wall portion thereof surrounds their circumferences so that the optical sheets receive light from fluorescent lights. Tips of one corner portion A of optical sheets preferably have a shape in which the tips are trimmed by line segments extending between two edges defining the corner portions. At the wall portion of the tray, an opposing surface is formed along the line segments of the corner portions so as to correspond to the shape of the corner portions having tips trimmed off. The opposing surface restrains the line segments.
    Type: Grant
    Filed: September 24, 2009
    Date of Patent: May 18, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Yoshiki Takata
  • Patent number: 7717580
    Abstract: Relay connectors are arranged to supply power from power boards arranged on the back side of a chassis having a substantially plate-shaped configuration to discharge tubes arranged on the front side of the chassis. Each relay connector includes a holder having an insulation property and to be mounted to the chassis, and further includes a relay terminal mounted to the holder and capable of electrical connection to the discharge tube and the power board. The relay terminal is immune to direct contact with the chassis. This enables the use of a metallic chassis.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: May 18, 2010
    Assignees: Sharp Kabushiki Kaisha, Japan Aviation Electronics Industry Ltd.
    Inventors: Yoshiki Takata, Kenichi Iwamoto, Takaaki Kudo, Naofumi Ikenaga
  • Publication number: 20100110667
    Abstract: A thin, lightweight illuminating device, in the form of a backlight unit, is capable of securing even brightness and improving light use efficiency. The backlight unit includes a light source including a plurality of light emitting diodes mounted on a mounting surface of a board, a diffusion plate which has a light introduction surface that faces the mounting surface of the board at a predetermined distance therefrom and diffuses the light emitted from the plurality of light emitting diodes, and a reflection sheet that is adhered to the mounting surface of the board. A light emission direction of the plurality of light emitting diodes is parallel or substantially parallel to the light introduction surface of the diffusion plate.
    Type: Application
    Filed: January 8, 2008
    Publication date: May 6, 2010
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Yoshiki Takata
  • Patent number: 7703964
    Abstract: An illumination device for a display apparatus provided on a rear side of a display panel of the display apparatus includes a plurality of rod-like light sources arranged substantially parallel to each other; and a light scattering member for scattering light, the light scattering member being provided between two adjacent rod-like light sources among the plurality of rod-like light sources.
    Type: Grant
    Filed: April 23, 2007
    Date of Patent: April 27, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Yoshiki Takata
  • Publication number: 20100097533
    Abstract: In a discharge tube, a conductive ferrule is provided on an end portion of a glass tube. The ferrule includes a body that is to be mounted to the outer circumference of the glass tube and has a contact portion to be electrically conductively fixed to a relay connector (or a bearing device). Further included is a conductive portion that extends from the body so as to have elastic contact with an outer lead. The outer lead will not be under load due to the weight of the discharge tube, but the conductive portion solely has elastic contact therewith. Thus, stress concentration on the outer lead can be prevented.
    Type: Application
    Filed: December 18, 2009
    Publication date: April 22, 2010
    Applicants: SHARP KABUSHIKI KAISHA, JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED
    Inventors: Yoshiki TAKATA, Kenichi IWAMOTO, Takaaki KUDO
  • Publication number: 20100097786
    Abstract: A ferrule includes a body having a cylindrical shape. Elastic gripping portions are arranged on the body so as to bulge radially inwardly. The elastic gripping portions can have elastic contact with the outer circumferential surface of a glass tube. The body of the ferrule is mounted to the glass tube via the elastic gripping portions capable of elastic and radial deformation. Thereby, the variations in outer diameter of the glass tube can be absorbed, and therefore the dimensional control with high precision is not required for glass tubes at the time of manufacturing. This leads to cost reduction.
    Type: Application
    Filed: December 23, 2009
    Publication date: April 22, 2010
    Applicants: SHARP KABUSHIKI KAISHA, JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED
    Inventors: Yoshiki TAKATA, Kenichi IWAMOTO, Takaaki KUDO
  • Publication number: 20100097785
    Abstract: Discharge tubes, each of which includes a glass tube and a ferrule that has a substantially cylindrical shape and is fitted to each end portion of the glass tube, are supported by a plurality of pairs of relay connectors (or supporting members) provided on the front side of a chassis having substantially a plate-shaped configuration. When a discharge tube is supported by relay connectors, stoppers provided on the relay connectors lock the ferrules so that axial movement of the discharge tube relative to the relay connectors is restricted.
    Type: Application
    Filed: December 23, 2009
    Publication date: April 22, 2010
    Applicants: SHARP KABUSHIKI KAISHA, JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED
    Inventors: Yoshiki TAKATA, Kenichi IWAMOTO, Takaaki KUDO, Naofumi IKENAGA
  • Publication number: 20100097787
    Abstract: A lamp holding apparatus for mounting a lamp to a base member includes a mounting plate having a pair of locking portions protruding to a base side. The locking portion is inserted into a mounting hole provided at the base and capable of being locked to a peripheral edge on its back side. Abutting portions, which protrude to the base side and are capable of abutting the base at the time of mounting, are provided on a bottom surface of the mounting plate that is an opposing surface to the base. The abutting portions are provided at three spots with one of the locking portions interposed therebetween. At the time of mounting, each of the abutting portions abut the base, and the mounting plate is elastically deformed so as to be warped, whereby the locking surface of the locking portion is kept in the state in which it is locked to a peripheral edge of a back side of the mounting hole by its elastic force.
    Type: Application
    Filed: December 18, 2009
    Publication date: April 22, 2010
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Hiroki AZUMA, Tatsuya KUDARI, Yoshiki TAKATA
  • Publication number: 20100091481
    Abstract: Relay connectors are arranged to supply power from power boards arranged on the back side of a chassis having a substantially plate-shaped configuration to discharge tubes arranged on the front side of the chassis. Each relay connector includes a holder having an insulation property and to be mounted to the chassis, and further includes a relay terminal mounted to the holder and capable of electrical connection to the discharge tube and the power board. The relay terminal is immune to direct contact with the chassis. This enables the use of a metallic chassis.
    Type: Application
    Filed: December 18, 2009
    Publication date: April 15, 2010
    Applicants: SHARP KABUSHIKI KAISHA, JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED
    Inventors: Yoshiki TAKATA, Kenichi IWAMOTO, Takaaki KUDO, Naofumi IKENAGA
  • Publication number: 20100091199
    Abstract: In a discharge tube, a conductive ferrule is provided on an end portion of a glass tube. The ferrule includes a body that is to be mounted to the outer circumference of the glass tube and has a contact portion to be electrically conductively fixed to a relay connector (or a bearing device). Further included is a conductive portion that extends from the body so as to have elastic contact with an outer lead. The outer lead will not be under load due to the weight of the discharge tube, but the conductive portion solely has elastic contact therewith. Thus, stress concentration on the outer lead can be prevented.
    Type: Application
    Filed: December 18, 2009
    Publication date: April 15, 2010
    Applicants: SHARP KABUSHIKI KAISHA, JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED
    Inventors: Yoshiki TAKATA, Kenichi IWAMOTO, Takaaki KUDO
  • Publication number: 20100085736
    Abstract: A lighting device for display devices preferably used for constituting a backlight of a transmissive or transflective liquid crystal display device includes a light source lamp, and a light-diffusing layer constituted by a diffusing plate or a diffusing sheet, the light source lamp being a light source lamp having a folded portion (curved portion), such as U-shaped tube, and the lighting device for display devices having any of, or a combination of: a configuration in which the folded portion (curved portion) of the light source lamp is covered with a lamp frame; a configuration in which an optical member provided with a light-reducing or light-shielding treatment is used around the folded portion (curved portion) of the light source lamp; a configuration in which the folded portion (curved portion) of the light source lamp is disposed outside an effective display region; a configuration in which the folded portion (curved portion) of the light source lamp is provided with a member for reducing or shielding l
    Type: Application
    Filed: December 8, 2009
    Publication date: April 8, 2010
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yoshiki TAKATA, Katsuaki YAMADA
  • Publication number: 20100066916
    Abstract: Discharge tubes, each of which includes a glass tube and a ferrule that has a substantially cylindrical shape and is fitted to each end portion of the glass tube, are supported by a plurality of pairs of relay connectors (or supporting members) provided on the front side of a chassis having substantially a plate-shaped configuration. When a discharge tube is supported by relay connectors, stoppers provided on the relay connectors lock the ferrules so that axial movement of the discharge tube relative to the relay connectors is restricted.
    Type: Application
    Filed: June 4, 2007
    Publication date: March 18, 2010
    Applicants: SHARP KABUSHIKI KAISHA, JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED
    Inventors: Yoshiki Takata, Kenichi Iwamoto, Takaaki Kudo, Naofumi Ikenaga
  • Publication number: 20100066272
    Abstract: A cold cathode tube lamp is fed with power from a first conductive member and a second conductive member provided outside in a mounted state, and includes a glass tube, first and second internal electrodes provided inside the glass tube, a first external electrode provided outside the glass tube and connected to the first internal electrode, a second external electrode provided outside the glass tube and connected to the second internal electrode, a first insulating layer coated on the first external electrode, and a second insulating layer coated on the second external electrode. In a mounted state, the first conductive member and the first external electrode are capacitively coupled together, and the second conductive member and the second external electrode are capacitively coupled together. With such a structure, parallel lighting can be achieved by parallel driving.
    Type: Application
    Filed: November 18, 2009
    Publication date: March 18, 2010
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Yoshiki TAKATA
  • Patent number: 7677757
    Abstract: A lamp holder includes a mounting portion, a lamp holding part which is connected to the mounting portion, and includes an end capable of surrounding a peripheral surface of a lamp, and is capable of being elastically opened and deformed with attaching and detaching of the lamp. The present invention also includes a recessed portion positioned at an opposed surface to the lamp in the lamp holding part and in a position between an end portion and a connecting region to a mounting portion, such that the recessed portion allows the lamp holding part to bend so that the end portion displaces in a direction to be away from the peripheral surface of the lamp.
    Type: Grant
    Filed: November 8, 2005
    Date of Patent: March 16, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshiki Takata, Tatsuya Kudari
  • Publication number: 20100039572
    Abstract: In a power board, relay terminals penetrate a circuit board through fitting holes, and are connected to output terminals. The fitting holes are thus formed as through holes on the circuit board, and thereby on-board connectors provided for connection to the relay terminals on a chassis can be arranged on the back surface of the circuit board on the opposite side of the chassis. Electronic components free from restriction of the positional relationship with the chassis can be mounted on the back surface of the circuit board, as are the on-board connectors.
    Type: Application
    Filed: May 24, 2007
    Publication date: February 18, 2010
    Applicants: SHARP KABUSHIKI KAISHA, JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED
    Inventors: Yoshiki Takata, Kenichi Iwamoto, Takaaki Kudo, Naofumi Ikenaga
  • Patent number: 7658534
    Abstract: A lamp holding apparatus for mounting a lamp to a base member includes a mounting plate having a pair of locking portions protruding to a base side. The locking portion is inserted into a mounting hole provided at the base and capable of being locked to a peripheral edge on its back side. Abutting portions, which protrude to the base side and are capable of abutting the base at the time of mounting, are provided on a bottom surface of the mounting plate that is an opposing surface to the base. The abutting portions are provided at three spots with one of the locking portions interposed therebetween. At the time of mounting, each of the abutting portions abut the base, and the mounting plate is elastically deformed so as to be warped, whereby the locking surface of the locking portion is kept in the state in which it is locked to a peripheral edge of a back side of the mounting hole by its elastic force.
    Type: Grant
    Filed: April 21, 2009
    Date of Patent: February 9, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiroki Azuma, Tatsuya Kudari, Yoshiki Takata
  • Patent number: 7651233
    Abstract: A lighting device for display devices preferably used for constituting a backlight of a transmissive or transflective liquid crystal display device includes a light source lamp, and a light-diffusing layer constituted by a diffusing plate or a diffusing sheet, the light source lamp being a light source lamp having a folded portion(curved portion), such as U-shaped tube, and the lighting device for display devices having any of, or a combination of: a configuration in which the folded portion (curved portion) of the light source lamp is covered with a lamp frame; a configuration in which an optical member provided with a light-reducing or light-shielding treatment is used around the folded portion (curved portion) of the light source lamp; a configuration in which the folded portion (curved portion) of the light source lamp is disposed outside an effective display region; a configuration in which the folded portion (curved portion) of the light source lamp is provided with a member for reducing or shielding li
    Type: Grant
    Filed: November 18, 2004
    Date of Patent: January 26, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshiki Takata, Katsuaki Yamada
  • Publication number: 20100014023
    Abstract: A lighting device for a display device includes a display panel, a light source, and an optical member to be arranged between the light source and the display panel. The optical member has light reflectivity that is higher at an end of the plane of the optical member than at the center thereof.
    Type: Application
    Filed: July 31, 2007
    Publication date: January 21, 2010
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Yoshiki Takata