Patents by Inventor Tetsuya Hamada

Tetsuya Hamada 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: 8287149
    Abstract: In a direct backlight, a substrate on which LEDs are provided includes a plurality of module substrates. Each module substrate can be reduced in warping or deformation after a blanking process. In addition, each module substrate can be formed thin since bending due to its own weight is small. Consequently, the substrate as a whole and the backlight can be formed thin.
    Type: Grant
    Filed: November 2, 2006
    Date of Patent: October 16, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Tetsuya Hamada
  • Patent number: 8289478
    Abstract: Disclosed is a backlight unit (49) comprising a light-emitting unit (UT) and a light guide plate (42) for receiving light from the light-emitting unit (UT). In this backlight unit (49), a light-receiving surface (42S) of the light guide plate (42) receiving light from an LED (12) is provided with a recess (DH) for housing an FFC (14) which connects mounted boards (11) arranged side by side.
    Type: Grant
    Filed: November 4, 2008
    Date of Patent: October 16, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Tetsuya Hamada
  • Patent number: 8267569
    Abstract: A backlight device (3) includes: a light guide plate (32); a chassis (31) on which the light guide plate (32) is mounted; a frame member (35) having the light guide plate (32) held between the chassis (31) and the frame member (35); a spot light source (36) arranged near a side surface of the light guide plate (32); a flexible printed circuit board (37) on which the spot light source (36) is mounted; and a heat dissipation plate (31a) (part of the chassis (31)) bonded through a double-faced adhesive (38) to the flexible printed circuit board (37). The frame member (35) is provided with a protrusion portion (351) that is in contact with the flexible printed circuit board (37) and that presses the flexible printed circuit board (37) onto the heat dissipation plate (31a), and a tip portion of the protrusion portion (351) is so tapered as to be located apart from the flexible printed circuit board (37).
    Type: Grant
    Filed: April 10, 2009
    Date of Patent: September 18, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Tetsuya Hamada
  • Patent number: 8258361
    Abstract: The invention provides transition metal complex compounds, high-activity olefin oligomerization catalysts containing the compounds, and olefin oligomerization processes using the catalysts. A transition metal complex compound [A] according to the invention is represented by Formula (I) or Formula (I?) below. An olefin oligomerization catalyst includes the transition metal complex compound [A]. In an olefin oligomerization process of the invention, an olefin is oligomerized in the presence of the catalyst.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: September 4, 2012
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Yasuhiko Suzuki, Shinsuke Kinoshita, Atsushi Shibahara, Naritoshi Yoshimura, Isao Hara, Tetsuya Hamada, Kazumori Kawamura, Kou Tsurugi, Yasunori Saito, Seiichi Ishii, Yasushi Nakayama, Naoto Matsukawa, Susumu Murata
  • Patent number: 8242700
    Abstract: A backlight unit that realizes stabilization of lighting operation in the event of carrying out lighting operation at low luminance. The backlight unit is backlight unit (10) comprising a light source composed of multiple light emitting diode groups (4a, 4b, 31a, 31b, 31c, 31d) each including a given number of serially connected light emitting diodes (4,31); and lighting circuit (20, 40) for lighting the light source in accordance with a light control signal. The lighting circuit has at least multiple drive circuit portions (21a, 21b, 41a, 41b, 41c, 41d) respectively connected to the multiple light emitting diode groups, and in accordance with a light control signal, allows all the light emitting diodes included in each of the multiple light emitting diode groups to emit light, or allows only light emitting diodes included in light emitting diode group(s) selected from among the multiple light emitting diode groups to emit light.
    Type: Grant
    Filed: February 27, 2008
    Date of Patent: August 14, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Tetsuya Hamada
  • Patent number: 8235574
    Abstract: In a light emitting device, LEDs are arranged in a line on a film which is provided with a conductor. The conductor connects the LEDs to a connector. The film is bent at a division line between a region where the LEDs are arranged and a region where the conductor is formed, and disposed on the inner surface of a reflector. A reflective material is arranged on a surface of the conductor region which faces to the LEDs.
    Type: Grant
    Filed: November 2, 2006
    Date of Patent: August 7, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Tetsuya Hamada
  • Publication number: 20120127393
    Abstract: Disclosed is a display device configured to prevent its size from becoming large. The display device includes a case member (4) and attachment pieces (8) for attachment to an external member, where the attachment pieces (8) are provided on the case member (4). The case member (4) is constituted of a combination of a frame (5) and a bezel (6). Corner portions (5c) of a side section (5b) of the frame (5) disposed at locations of prescribed corner sections (4d) of the plurality of corner sections (4d) of the case member (4) are formed into chamfered surfaces. Also, attachment pieces (8) are disposed at least at the prescribed corner sections (4d) of the case member (4).
    Type: Application
    Filed: March 16, 2010
    Publication date: May 24, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Tetsuya Hamada
  • Patent number: 8182117
    Abstract: A light emitting includes a bump-shaped slug having a support plane at the top of the bump-shaped slug. The slug includes side planes arranged to function as optical action planes arranged to receive and reflect a portion of the light from the light emitting chip.
    Type: Grant
    Filed: February 19, 2007
    Date of Patent: May 22, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Tetsuya Hamada
  • Publication number: 20120099045
    Abstract: In a liquid crystal display apparatus (1) comprising: a liquid crystal panel (2); an illuminating device (3) for irradiating the liquid crystal panel (2) with illumination light; and an outer casing for accommodating the liquid crystal panel (2) and the illuminating device (3), the outer casing includes a bezel (4) provided on the liquid crystal panel (2) side and a frame (frame member) (5) configured so as to be contained within the bezel (4) and having side walls (5b) to which a mounting board (9) on which light-emitting diodes (8) are mounted is attached. A protruding portion (thermally conductive portion) (14) for transferring heat generated by the light-emitting diodes (8) from the frame (5) side to the bezel (4) side is provided between the side surface (4b) of the bezel (4) and the side wall (5b) of the frame (5).
    Type: Application
    Filed: March 5, 2010
    Publication date: April 26, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Tetsuya Hamada
  • Patent number: 8157430
    Abstract: Electrode terminals (33a, 33b) of an LED (3) and a mounting wiring (42) of an FPC (4) are bonded by using a conductive adhesive, and a metal slug (31) of the LED (3) and a heat dissipation wiring (43) of the FPC (4) are bonded by using the conductive adhesive. The heat dissipation wiring (43) corresponds to each of the LEDs (3) and isolates the LEDs one from the other, not permitting electricity to be carried between them.
    Type: Grant
    Filed: October 10, 2007
    Date of Patent: April 17, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Tetsuya Hamada
  • Publication number: 20120087151
    Abstract: Disclosed is a display device wherein a light emitting element can have a longer service life, while suppressing luminance unevenness without causing an increase in cost or size. The display device comprises a light guide plate (21), an LED (25) that is arranged on the side of at least one corner portion (21d) of the light guide plate (21), a frame (4) that has a lateral portion (4b), and a bezel (5) that has a lateral portion (5b). The LED (25) is attached to a part (4d) of the lateral portion (4b) of the frame (4), and the part (4d) is thermally connected to a part (5d) of the lateral portion (5b) of the bezel (5).
    Type: Application
    Filed: March 16, 2010
    Publication date: April 12, 2012
    Applicant: Sharp Kabushiki Kaisha
    Inventor: Tetsuya Hamada
  • Publication number: 20120087150
    Abstract: A side light type backlight includes a light source including a plurality of LEDs, and a light guide plate. One of the end surfaces of the light guide plate is a light incidence surface at which a plurality of R-LEDs, a plurality of G-LEDs and a plurality of B-LEDs are arranged. LEDs satisfy the relationship of: a distribution range of light emitted from G-LEDs<a distribution range of light emitted from R-LEDs, or a distribution range of light emitted from G-LEDs<a distribution range of light emitted from B-LEDs. Also, LEDs are electrically connected to each other.
    Type: Application
    Filed: December 14, 2011
    Publication date: April 12, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Tetsuya Hamada, Toshihiro Suzuki
  • Patent number: 8147113
    Abstract: An FPC (31) on which LEDs (32) are mounted at predetermined intervals in the longitudinal direction is secured to a lower chassis (21b) used also as a heat-dissipating plate through an elastic heat conductive sheet (34). With a retaining plate (33) is overlapped on the mounting surface of the FPC (31), a screw (S) is inserted into the retaining plate (33) from the outside of a bezel (5) to fix the retaining plate. Furthermore, the FPC (31) is held between the retaining plate (33) and the lower chassis (21b).
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: April 3, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Tetsuya Hamada
  • Patent number: 8134661
    Abstract: To suppress a decrease in the contrast caused by the reflection on the interface to the air layer without decreasing the quality of display. A reflection-type liquid crystal display device includes a light guide plate having a polarizing element stuck or adhered thereto on the side facing a reflection-type liquid crystal display panel and arranged maintaining a predetermined gap relative to the reflection-type liquid crystal display panel. The display device further includes a source of light arranged on an end surface side of the light guide plate, and a member having a light-diffusing function and interposed between the polarizing element and the light guide plate.
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: March 13, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tetsuya Hamada, Kunihiro Tashiro, Mari Sugawara, Toshihiro Suzuki, Hidefumi Yoshida
  • Patent number: 8128261
    Abstract: An LED package housing member that includes a light emitting chip has a missing portion in its side walls.
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: March 6, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Tetsuya Hamada
  • Patent number: 8122851
    Abstract: A substrate processing apparatus is configured to provide in series a plurality of processing blocks, each block including a processing unit and a transport robot transporting a substrate. A substrate rest is provided in a connecting portion of adjacent processing blocks. A sensor plate with sensor coils is provided spanning over support pins of the substrate rest. Once a temperature-measurement substrate with temperature-measuring elements, each element formed by connecting a coil to a quartz resonator, is placed on the support pins, a transmitter-receiver transmits transmission waves corresponding to the characteristic frequencies of the quartz resonators to the temperature-measuring elements through the sensor coils. After the stop of the transmission, the transmitter-receiver receives electromagnetic waves from the temperature-measuring elements through the sensor coils, and the temperature computer computes the substrate temperature based on the frequencies of the electromagnetic waves.
    Type: Grant
    Filed: November 7, 2008
    Date of Patent: February 28, 2012
    Assignee: Sokudo Co., Ltd.
    Inventor: Tetsuya Hamada
  • Patent number: 8118656
    Abstract: A roulette-shaped big monopoly unit 12 is disposed at the center of a casing 10, and a triangular pointer 14 for pointing a partition of the annular board 13 is disposed at the summit of the big monopoly unit 12. The players playing in the satellites 20 satisfy prescribed conditions to thereby to play in a big monopoly game using the big monopoly unit 12. In the big monopoly game, the players sequentially revolve the annular board 12. The game is advanced in accordance with contents of a partition pointed by the pointer 14 which is common among all the players when the revolving annular board 13 stops. The game can be played closely related among the satellites.
    Type: Grant
    Filed: February 13, 2006
    Date of Patent: February 21, 2012
    Assignee: Sega Corporation
    Inventor: Tetsuya Hamada
  • Publication number: 20120037593
    Abstract: A substrate processing apparatus includes an anti-reflection film processing block, a resist film processing block, and a resist cover film processing block. In the processing blocks, an anti-reflection film, a resist film, and a resist cover film are formed on a substrate, respectively. Additionally, a film formed at a peripheral edge of the substrate is removed. The film formed at the peripheral edge of the substrate is removed by supplying a removal liquid capable of dissolving and removing the film to the peripheral edge of the substrate during rotation. When the peripheral edge of the film is removed, the position of the substrate is corrected such that the center of the substrate coincides with the center of a rotation shaft.
    Type: Application
    Filed: October 28, 2011
    Publication date: February 16, 2012
    Applicant: SOKUDO CO., LTD.
    Inventors: Tadashi Miyagi, Masashi Kanaoka, Tetsuya Hamada, Kazuhito Shigemori, Shuichi Yasuda
  • Patent number: 8104932
    Abstract: A backlight structure includes: light source modules 1 and 1; a light guide plate 2 disposed between the light source modules 1 and 1; a rear plate 3 disposed at the rear side of the light source modules 1 and the light guide plate 2; a fan-mount plate 4 disposed at the rear side of the rear plate 3; and a cooling fan 5 mounted on the fan-mount plate 4. The rear plate 3 has portions thereof at the rear side of the light source modules 1 and 1 formed into protruding portions 3a, and has a portion thereof between the upper and lower protruding portions 3a formed into a flat surface 3b. A cooling wind passage 11 is formed between a front surface 4a of the fan-mount plate and the flat surface 3b of the rear plate. Heat from LED chips 1a of the light source modules is made to concentrate at the protruding portions 3a of the rear plate and is then rejected into the outside by the wind guided from the cooling fan 5 into the cooling wind passage 11.
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: January 31, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Tetsuya Hamada
  • Patent number: 8104943
    Abstract: A side light type backlight includes a light source including a plurality of LEDs, and a light guide plate. One of the end surfaces of the light guide plate is a light incidence surface at which a plurality of R-LEDs, a plurality of G-LEDs and a plurality of B-LEDs are arranged. LEDs satisfy the relationship of: a distribution range of light emitted from G-LEDs<a distribution range of light emitted from R-LEDs, or a distribution range of light emitted from G-LEDs<a distribution range of light emitted from B-LEDs. Also, LEDs are electrically connected to each other.
    Type: Grant
    Filed: December 6, 2010
    Date of Patent: January 31, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tetsuya Hamada, Toshihiro Suzuki