Patents by Inventor Hiroshi Hamada

Hiroshi 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).

  • Publication number: 20130162918
    Abstract: A display device includes a display panel, a touch panel arranged on a display surface side of the display panel, a switching liquid crystal panel including a parallax barrier that enables three-dimension display, a common board that is commonly used as a base board of the touch panel and a base board of the switching liquid crystal panel, a plurality of electrodes provided on the common board and used for the touch panel and the switching liquid crystal panel, and a drive circuit configured to apply a synthesized signal to some of the electrodes. The synthesized signal is configured by synthesizing a touch panel drive signal and a switching liquid crystal drive signal.
    Type: Application
    Filed: September 6, 2011
    Publication date: June 27, 2013
    Inventors: Masashi Mayumi, Akinori Kubota, Hiroshi Hamada, Mikihiro Noma
  • Patent number: 8350823
    Abstract: A coordinate detection device according to the present invention includes: a conductor for locating a point of contact; multiple terminals that are connected to the conductor at mutually different points; a signal output section, which includes a charge storage section to store electrical charge there and which outputs a signal with a voltage value representing the quantity of charge stored in the charge storage section; a setting section for setting a voltage for the charge storage section equal to a predetermined value; and a switching section for selectively connecting or disconnecting a particular one of the terminals to/from not only the charge storage section but also a predetermined power supply.
    Type: Grant
    Filed: September 11, 2006
    Date of Patent: January 8, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takao Hasegawa, Takeshi Yamaguchi, Hiroshi Hamada, Ryota Takahashi
  • Publication number: 20120326572
    Abstract: An alternator for a vehicle is provided which is equipped with a heat dissipator and a cooling air generator. The heat dissipator is disposed in a rectifier to cool rectifying devices. The cooling air generator generates a flow of cooling air to the heat dissipator. The heat dissipator has a plurality of sub-fins formed thereon. Each of the sub-fins is defined by a combination of a protrusion and a recess. The protrusions are formed on one of opposed major surfaces of the heat dissipator, while the recesses are formed on the other major surface, one in coincidence with each of the protrusions in a thickness-wise direction of the heat dissipator. This permits the heat dissipator to be pressed to form the protrusions and the recesses to make the sub-fins simultaneously, thus allowing a heat-dissipating area to be increased to ensure a desired degree of heat capacity thereof.
    Type: Application
    Filed: June 8, 2012
    Publication date: December 27, 2012
    Applicant: DENSO CORPORATION
    Inventors: Kazuyoshi KONAYA, Hiroshi HAMADA, Mikio MASHINO, Seiji KONDOH
  • Publication number: 20120327005
    Abstract: A display device includes a touch panel and displays stereoscopic images with reducing its thickness and weight. The display device includes a liquid crystal display panel 20, a switching liquid crystal panel 30 and a touch panel 50. The switching liquid crystal panel 30 is provided on a display surface side of the display panel 20 and switches a display mode between two-dimensional display and three-dimensional display. The touch panel 50 is provided on the display surface side of the display panel 20. The touch panel 50 and the switching liquid crystal panel 30 commonly include one common board 32 and are configured as one component. A touch panel transparent electrode 51 and a switching liquid crystal panel transparent electrode 33 are provided on the common board 32. The switching liquid crystal panel transparent electrode 33 applies a voltage to liquid crystals of the switching liquid crystal panel 30.
    Type: Application
    Filed: February 16, 2011
    Publication date: December 27, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Hiroshi Hamada, Akira Imai, Tomoo Takatani
  • Publication number: 20120292731
    Abstract: A light-receiving device array includes a photodiode array that is provided with plural light-receiving sections each of which includes a first conductivity type electrode and a second conductivity type electrode, and a carrier, wherein the carrier includes plural pair of electric lines each of which is formed from a first electric line connected to the first conductivity type electrode of each light-receiving section, and a second electric line connected to the second conductivity type electrode of the light-receiving section, a first ground electrode that extends between one pair of electric lines of the plural pair of electric lines and a pair of electric lines adjacent to the one pair of electric lines, and a second ground electrode that is formed on a part of the rear surface and is electrically connected to the first ground electrode.
    Type: Application
    Filed: May 7, 2012
    Publication date: November 22, 2012
    Applicant: OPNEXT JAPAN, INC.
    Inventors: Takashi TOYONAKA, Takuma BAN, Hiroshi HAMADA
  • Patent number: 8274481
    Abstract: A touch-sensored display device 20 according to the present invention includes: a counter substrate 6 disposed on a viewer side of an active matrix substrate 8 via a display medium layer 4, the counter substrate 6 having a counter electrode 5 which opposes pixel electrodes; a display panel driving circuit 14 for supplying to the counter electrode 5 a common voltage which undergoes periodic inversion in polarity; a transparent conductive film 7 for position detection placed so as to oppose the counter electrode 5 via the counter substrate 6; a strobe signal generation circuit 32 for generating a strobe signal which is in synchronization with a polarity inversion period of the common voltage, and a noise-cut current signal generation circuit 30 for generating a noise-cut current signal which is obtained by eliminating based on the strobe signal a predetermined portion from a current flowing from a terminal connected to the transparent conductive film 7 for position detection.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: September 25, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tomohiko Nishimura, Saburoh Miyamoto, Toshihisa Nakano, Hiroshi Hamada, Takeshi Yamaguchi
  • Patent number: 8198777
    Abstract: An automotive alternator includes a magnet holder that is composed of first and second magnet holder pieces. Each of the first and second magnet holder pieces is made of a nonmagnetic metal plate to have a one-piece structure. Each of the first and second magnet holder pieces includes a plurality of receiving portions, each of which receives a permanent magnet, and a plurality of connecting portions. All the receiving portions of the first magnet holder piece have the same orientation. Each of the connecting portions of the first magnet holder piece connects a circumferentially-adjacent pair of the receiving portions of the first magnet holder piece. All the receiving portions of the second magnet holder piece have the same orientation. Each of the connecting portions of the second magnet holder piece connects a circumferentially-adjacent pair of the receiving portions of the second magnet holder piece.
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: June 12, 2012
    Assignee: Denso Corporation
    Inventor: Hiroshi Hamada
  • Publication number: 20120098791
    Abstract: A touch panel includes a touch region for detecting a location of a touch by an object, and a plurality of touch location detection electrodes arranged in the touch region. The touch panel is configured to detect the location of the touch based on a capacitance formed between the touch location detection electrodes and the object. An optical characteristic of a gap between the touch location detection electrodes adjacent to each other is substantially equal to an optical characteristic of the touch location detection electrodes.
    Type: Application
    Filed: March 3, 2010
    Publication date: April 26, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Hiroshi Hamada, Minoru Mayumi
  • Publication number: 20120045158
    Abstract: An alternator has front and rear bearings, supported by front and rear frames, to rotatably support a shaft of a rotor extending along axial direction. A washer is located between the rear frame and the rear bearing to apply pressing force to the rear bearing slightly movable along axial direction. The washer has a ring-shaped base portion concentrically located with the rear bearing, slanting portions extending from the base portion toward outside of radial direction such that two adjacent slanting portions arranged as each pair along circumferential direction are inclined to different sides of axial direction, and flattened portions extending from respective slanting portions toward outside and being parallel to the base portion. Flattened portions shifted to front side are in contact with the rear bearing, and flattened portions shifted to rear side are in contact with the rear frame.
    Type: Application
    Filed: June 30, 2011
    Publication date: February 23, 2012
    Applicant: DENSO CORPORATION
    Inventors: Mikio MASHINO, Hiroshi HAMADA
  • Publication number: 20110291993
    Abstract: A touch panel includes: an infrared light transmitting material through which infrared light is transmitted and which has a surface as a touch surface (20) touched by a detection subject; area sensors (3) including photo sensor elements (4) below a touch region, which is touched by the detection subject, of the infrared light transmitting material; and infrared light sources (1) provided outside the touch region, the infrared light sources (1) emitting infrared light along said surface of the infrared light transmitting material such that an entire circumference of the detection subject touching the touch surface (20) is irradiated with the infrared light, the touch panel detecting a position touched by the detection subject so that the photo sensor element (4) receives, among infrared light emitted by the infrared light sources (1) along said surface, infrared light reflected by the detection subject and transmitted through the infrared light transmitting material.
    Type: Application
    Filed: March 12, 2010
    Publication date: December 1, 2011
    Inventors: Shinichi Miyazaki, Hiroshi Hamada, Mikihiro Noma, Kengo Takahama, Masakazu Wada, Norikazu Hohshi
  • Publication number: 20110286083
    Abstract: Provided is a backside illuminated semiconductor light-receiving device enhancing a frequency characteristic without deteriorating assembling operability. The light-receiving device includes a rectangular substrate; a light receiving mesa portion formed on a center portion of one side on a front surface of the substrate and includes a PN junction portion; a P-type electrode formed on the light receiving mesa portion and conductive with one side of the PN junction portion; an N-type electrode mesa portion formed on one corner portion of the one side; an N-type electrode pulled out to the N-type electrode mesa portion and conductive with the other side of the PN junction portion; a P-type electrode mesa portion and a dummy electrode mesa portion formed in a region including three other corner portions; and a dummy electrode formed on the dummy electrode mesa portion.
    Type: Application
    Filed: April 13, 2011
    Publication date: November 24, 2011
    Applicant: OPNEXT JAPAN, INC.
    Inventors: Takashi TOYONAKA, Hiroshi HAMADA, Masataka YOKOSAWA
  • Publication number: 20110248954
    Abstract: A touch panel device includes a plurality of touch position detection electrodes provided in a touch area, and a detection circuit configured to detect a touch position or positions based on a capacitance or capacitances formed between the touch position detection electrodes and a touching object. The touch position detection electrodes include a first electrode and second electrodes formed along a curved substrate surface. The first electrode has a center portion provided at a center of the touch area, and a plurality of tip portions radially extending from the center portion to reach a periphery of the touch area. The second electrodes are located in a region including the periphery of the touch area, and one of the second electrodes is located between each adjacent pair of the tip portions.
    Type: Application
    Filed: December 9, 2009
    Publication date: October 13, 2011
    Inventors: Hiroshi Hamada, Minoru Mayumi, Seiji Satoh
  • Publication number: 20110233708
    Abstract: Provided is a semiconductor light receiving device including: a semiconductor substrate; a semiconductor layer laminated on the semiconductor substrate and including an upper surface portion; a reflecting film formed to cover the upper surface portion of the semiconductor layer and including a principal reflecting region and an upper surface; and an upper electrode formed to cover at least one portion of the upper surface of the reflecting film, and including a junction portion extending through the reflecting file to be provided in contact with the upper surface portion of the semiconductor layer, the junction portion of the upper electrode surrounding a portion of a circumference of the principal reflecting region of the reflecting film, the principal reflecting region being connected to a region of the reflecting film located outside the junction portion, in which the semiconductor light receiving device detects light entering from another side of the semiconductor substrate.
    Type: Application
    Filed: March 23, 2011
    Publication date: September 29, 2011
    Inventors: Ryu WASHINO, Yasushi SAKUMA, Hiroshi HAMADA
  • Publication number: 20110227238
    Abstract: [Object] An apparatus and a method for producing optical sheeting with which increased productivity can be achieved while maintaining the accuracy of produced optical sheeting.
    Type: Application
    Filed: August 19, 2009
    Publication date: September 22, 2011
    Applicant: NIPPON CARBIDE INDUSTRIES CO., INC.
    Inventors: Ikuo Mimura, Chihiro Hayashi, Akihiro Mathuda, Hiroshi Hamada, Naotake Osaki
  • Publication number: 20110157097
    Abstract: A coordinate sensor (10) includes at least two line sensors (1) that are disposed in x-axis and y-axis directions, and right-angle prisms (2) each of which changes a light path of light that has passed through an image display region of a liquid crystal panel (20). Each of the line sensors (1) is disposed outside the image display region and has a light-receiving surface (1a) parallel to an image display surface of the liquid crystal panel (20). The right angle prisms (2) cause light which travels in the x-axis and y-axis directions and which has passed through the image display region to be guided to the light-receiving surfaces (1a) of the line sensors (1). The coordinate sensor (10) receives the light which has thus passed through the image display region of the liquid crystal panel (20) so as to detect a coordinate, on the image display region, that is indicated by an object to be detected such as a finger.
    Type: Application
    Filed: May 29, 2009
    Publication date: June 30, 2011
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Hiroshi Hamada, Shinichi Miyazaki, Mikihiro Noma, Kengo Takahama, Masakazu Wada, Norikazu Hohshi, Kohichi Oda, Yukio Mizuno
  • Publication number: 20110106450
    Abstract: Disclosed is a satellite navigation/dead-reckoning navigation integrated positioning device with improved accuracy of navigation data including position, velocity, and the like, which can be constituted at low cost. A tracking processing module (31) performs, based on a GPS positioning signal, acquisition processing and tracking processing thereof and demodulation processing of a navigation message. A GPS positioning calculation module (32) calculates position, velocity, and the like based on a pseudo-range observation, a Doppler frequency observation, and ephemeris data and gives the calculated position, velocity, and the like to an output judgment module (43) and the tracking processing module (31).
    Type: Application
    Filed: January 20, 2009
    Publication date: May 5, 2011
    Applicant: FURUNO ELECTRIC CO., LTD.
    Inventors: Hiroyuki Toda, Masaki Suyama, Hiroshi Hamada, Mika Tanaka, Kunihiko Hashimoto
  • Publication number: 20110043083
    Abstract: The vehicle electric rotating machine includes a pulley unit having an opening portion formed in an axial front end thereof, and configured to perform at least one of transmission and reception of a rotation drive force to and from the rotation shaft of the rotor, and a lid attached to the opening portion to close an internal space of the pulley unit. The rotor includes a rotor side receiving surface in contact with one axial end surface of an inner ring of the bearing rotatably supporting the rotor. The pulley unit includes a pulley side receiving surface in contact with the other axial end surface of the inner ring. An air passage enabling air communication between the internal space of the pulley unit closed by the lid and ambient space is formed in at least one of the rotor side receiving surface, the pulley side receiving surface, and the lid.
    Type: Application
    Filed: August 17, 2010
    Publication date: February 24, 2011
    Applicant: DENSO CORPORATION
    Inventors: Hiroshi Hamada, Tooru Ooiwa, Keiichi Yoshimura
  • Patent number: 7863783
    Abstract: A brushless alternating current generator for vehicles comprises a stator, rotor, field winding, rectifier, housing, cover, and extension member. The rectifier has plural rectifying elements to rectify a voltage from the stator winding and output the rectified voltage and a radiating fin to which the rectifying elements are attached. The housing has a side wall and houses both the stator and the rotor and has an end face to which electric parts including the rectifier are attached. The side wall is along the axial direction. The end face is along the radial direction. Both the side wall and the radiating fin are mutually adjacent to provide a gap in the radial direction. The cover encloses the end face of the housing and has plural air inlets that takes in cooling air. The extension member is secured to the cover and extends into the gap in the axial direction.
    Type: Grant
    Filed: June 24, 2008
    Date of Patent: January 4, 2011
    Assignee: Denso Corporation
    Inventor: Hiroshi Hamada
  • Patent number: 7830050
    Abstract: A brushless alternator includes a stationary field winding, a rotor, a stator, a rectifier, a terminal, and a protective resistor. The stationary field winding creates a magnetic flux. The rotor creates a rotating magnetic field with the magnetic flux created by the field winding. The stator includes three different-phase windings to generate a three-phase AC power in the rotating magnetic field created by the rotor. The rectifier rectifies the three-phase AC power generated by the stator into a DC power. The terminal is provided so that AC power generated by one of the three windings of the stator can be output from the alternator to external through the terminal. The protective resistor is electrically connected between the terminal and the one of the three windings of the stator to protect the alternator from electrical damage.
    Type: Grant
    Filed: April 2, 2008
    Date of Patent: November 9, 2010
    Assignee: Denso Corporation
    Inventor: Hiroshi Hamada
  • Patent number: 7717146
    Abstract: A pneumatic tire and noise damper assembly comprises a pneumatic tire, a noise damper being attached to an inner surface of the tire and extending in the circumferential direction of the tire, and a protective cover being detachably attached to the tire and protecting the noise damper from ultraviolet rays and water.
    Type: Grant
    Filed: December 4, 2006
    Date of Patent: May 18, 2010
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Naoki Yukawa, Hiroshi Hamada