Patents by Inventor Yoshiharu Kataoka

Yoshiharu Kataoka 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: 20190345596
    Abstract: A vapor deposition mask includes a mask substrate including a mask aperture, and a base material of the mask substrate includes fibrous micro cellulose.
    Type: Application
    Filed: December 2, 2016
    Publication date: November 14, 2019
    Inventors: Yoshiharu KATAOKA, Koji YAMABUCHI
  • Patent number: 9029861
    Abstract: Thin film transistors having a high current drive capability and a suitable threshold voltage are provided. The thin film transistor includes a gate electrode, an insulating layer formed on the gate electrode, a semiconductor layer formed on the insulating layer, and source/drain electrodes formed on the semiconductor layer. The semiconductor layer includes a plurality of regions separated from each other in a longitudinal direction of the source/drain electrodes.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: May 12, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tetsuo Kikuchi, Yoshiharu Kataoka, Shinya Tanaka, Junya Shimada, Chikao Yamasaki
  • Patent number: 8963152
    Abstract: A distance (d1) from an edge of a first region (R) at places (D) where branch electrodes (4b) extending, which branch off from an electrode line (4a) of a second source/drain electrode (4), start to overlap with a first region (R) to the electrode line (4a) is 5 ?m or more. This realizes a TFT including a comb-shaped source/drain structure that enables easy repair of a source-drain leakage.
    Type: Grant
    Filed: October 9, 2008
    Date of Patent: February 24, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Shinya Tanaka, Tetsuo Kikuchi, Hajime Imai, Hideki Kitagawa, Yoshiharu Kataoka
  • Patent number: 8946719
    Abstract: In at least one embodiment, a TFT includes: a first capacitor formed of a first capacitor electrode connected to a source electrode and a second capacitor electrode; a second capacitor formed of a third capacitor electrode and a fourth capacitor electrode; a first lead-out line; a second lead-out line connected to a gate electrode; a third lead-out line; a fourth lead-out line; a first interconnection; and a second interconnection. This realizes a TFT which can be easily saved from being a defective product even if leakage occurs in a capacitor connected to a TFT body section.
    Type: Grant
    Filed: January 27, 2009
    Date of Patent: February 3, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Shinya Tanaka, Tetsuo Kikuchi, Hajime Imai, Hideki Kitagawa, Yoshiharu Kataoka
  • Publication number: 20140306225
    Abstract: Thin film transistors having a high current drive capability and a suitable threshold voltage are provided. The thin film transistor includes a gate electrode, an insulating layer formed on the gate electrode, a semiconductor layer formed on the insulating layer, and source/drain electrodes formed on the semiconductor layer. The semiconductor layer includes a plurality of regions separated from each other in a longitudinal direction of the source/drain electrodes.
    Type: Application
    Filed: May 20, 2011
    Publication date: October 16, 2014
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Tetsuo Kikuchi, Yoshiharu Kataoka, Shinya Tanaka, Junya Shimada, Chikao Yamasaki
  • Patent number: 8735887
    Abstract: The present invention provides an ion sensor with which an ion concentration can be stably measured with high accuracy, and a display device. The present invention is an ion sensor that includes a field effect transistor. The ion sensor also includes an ion sensor antenna and a reset device. The ion sensor antenna and the reset device are connected to a gate electrode of the field effect transistor. The reset device is capable of controlling the potential of the gate electrode and the ion sensor antenna to a predetermined potential.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: May 27, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Atsuhito Murai, Yoshiharu Kataoka, Takuya Watanabe, Yuhko Hisada, Satoshi Horiuchi
  • Patent number: 8717334
    Abstract: A display device includes: an optical sensor circuit provided in a display region, the optical sensor circuit including a light-receiving element and detecting intensity of light incident to the light-receiving element; and a pressure detection circuit which detects pressure applied to a display surface of a display panel on a basis of a change of the display surface in a panel thickness direction which change is caused by the pressure, with respect to a region in which the pressure is to be detected, both of the detection of the pressure by the pressure detection circuit and the detection of the intensity of the light by the optical sensor circuit being carried out within a period allocated to acquisition of detection data concerning the pressure in the display region.
    Type: Grant
    Filed: October 27, 2009
    Date of Patent: May 6, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Atsuhito Murai, Yoshiharu Kataoka, Takuya Watanabe, Hajime Imai, Hideki Kitagawa
  • Patent number: 8716709
    Abstract: The present invention provides an inexpensive display device that includes an ion sensor portion and a display and that can be miniaturized. The present invention is a display device that includes an ion sensor portion including an ion sensor circuit and a display including a display-driving circuit. The display device has a substrate, and at least one portion of the ion sensor circuit and at least one portion of the display-driving circuit are formed on the same main surface of the substrate.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: May 6, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Atsuhito Murai, Yoshiharu Kataoka, Takuya Watanabe, Yuhko Hisada, Satoshi Horiuchi
  • Patent number: 8659726
    Abstract: Transflective-type and reflection type liquid crystal display devices having a high image quality are provided with a good production efficiency. A liquid crystal display device according to the present invention is a liquid crystal display device which includes; a first substrate and a second substrate between which liquid crystal is interposed; a first electrode and a second electrode formed on the first substrate for applying a voltage for controlling an orientation of the liquid crystal; a transistor having an electrode which is electrically connected to the first electrode; a metal layer being formed on the first substrate and including a protrusion, a recess, or an aperture; and a reflective layer formed above the metal layer on the first substrate for reflecting incident light toward a display surface. The metal layer is made of a same material as that of a gate electrode of the transistor.
    Type: Grant
    Filed: December 27, 2007
    Date of Patent: February 25, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hajime Imai, Tetsuo Kikuchi, Hideki Kitagawa, Yoshihito Hara, Junya Shimada, Mitsunori Imade, Yoshiharu Kataoka
  • Publication number: 20130313554
    Abstract: The present invention provides an ion sensor with which an ion concentration can be stably measured with high accuracy, and a display device. The present invention is an ion sensor that includes a field effect transistor. The ion sensor also includes an ion sensor antenna and a reset device. The ion sensor antenna and the reset device are connected to a gate electrode of the field effect transistor. The reset device is capable of controlling the potential of the gate electrode and the ion sensor antenna to a predetermined potential.
    Type: Application
    Filed: May 18, 2011
    Publication date: November 28, 2013
    Inventors: Atsuhito Murai, Yoshiharu Kataoka, Takuya Watanabe, Yuhko Hisada, Satoshi Horiuchi
  • Publication number: 20130240746
    Abstract: The present invention provides an ion sensor and a display device which are capable of detecting positive ions and negative ions with high precision, at low cost. The ion sensor includes: a field effect transistor; an ion sensor antenna; and a capacitor, the ion sensor antenna and one terminal of the capacitor connected to a gate electrode of the field effect transistor, the other terminal of the capacitor receiving voltage.
    Type: Application
    Filed: May 18, 2011
    Publication date: September 19, 2013
    Inventors: Atsuhito Murai, Yoshiharu Kataoka, Takuya Watanabe, Yuhko Hisada, Satoshi Horiuchi
  • Patent number: 8508678
    Abstract: A liquid crystal display device includes an active matrix substrate (20a) including a plurality of first touch panel interconnects (19b) extending in parallel with each other, a counter substrate (30a) facing the active matrix substrate (20a) and including a plurality of second touch panel interconnects (25a) extending in parallel with each other in a direction intersecting the first touch panel interconnects (19b), a liquid crystal layer (40) provided between the active matrix substrate (20a) and the counter substrate (30a) with an alignment film (9a, 9b) being interposed between the liquid crystal layer (40) and each of the active matrix substrate (20a) and the counter substrate (30a), and a plurality of columnar touch pins (P) connected to the first or second touch panel interconnects (19b, 25a). Repellency to the alignment films (9a, 9b) is imparted to at least a portion of a top portion of each of the touch pins (P).
    Type: Grant
    Filed: June 17, 2009
    Date of Patent: August 13, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takehiko Sakai, Dai Chiba, Yoshiharu Kataoka, Takuya Watanabe, Shogo Nishiwaki, Kazunori Morimoto
  • Publication number: 20130200373
    Abstract: The present invention provides an inexpensive display device that includes an ion sensor portion and a display and that can be miniaturized. The present invention is a display device that includes an ion sensor portion including an ion sensor circuit and a display including a display-driving circuit. The display device has a substrate, and at least one portion of the ion sensor circuit and at least one portion of the display-driving circuit are formed on the same main surface of the substrate.
    Type: Application
    Filed: May 18, 2011
    Publication date: August 8, 2013
    Inventors: Atsuhito Murai, Yoshiharu Kataoka, Takuya Watanabe, Yuhko Hisada, Satoshi Horiuchi
  • Patent number: 8411212
    Abstract: A touch electrode and a detection element are positioned in at least two of pixels. The touch electrode is formed in a first substrate, and is positioned so as to face a counter electrode. The touch electrode contacts the counter electrode and is electrically connected thereto when a second substrate is pressed and bent toward the first substrate. The detection element is connected to the touch electrode, and detects the electrical connection between the touch electrode and the counter electrode.
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: April 2, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Dai Chiba, Takehiko Sakai, Tetsuo Fujita, Kazunori Morimoto, Yoshiharu Kataoka, Shogo Nishiwaki
  • Publication number: 20130069121
    Abstract: The present invention provides an ion sensor with which an ion concentration in a sample in which both ions are mixed can be measured with high accuracy, a display device, a method for driving the ion sensor, and a method for calculating an ion concentration. The present invention is an ion sensor that includes a field effect transistor. The ion sensor detects one of negative ions and positive ions using the field effect transistor, and consecutively thereafter detects the other of the negative ions and positive ions using the field effect transistor.
    Type: Application
    Filed: May 18, 2011
    Publication date: March 21, 2013
    Inventors: Atsuhito Murai, Yoshiharu Kataoka, Takuya Watanabe, Yuhko Hisada, Satoshi Horiuchi
  • Patent number: 8390771
    Abstract: A device includes: an active matrix substrate (20a) including a plurality of first display lines (11a) extending parallel to each other and a plurality of second display lines extending parallel to each other in a direction crossing the first display lines (11a); and a counter substrate (30a) including a black matrix (B) provided so as to overlap the first display lines (11a) and the second display lines, wherein the active matrix substrate (20a) includes a plurality of touch panel lines (11b) extending parallel to each other in a direction in which the first display lines (11a) extend, and portions of the black matrix (B) overlapping the second display lines are electrically conductive and are configured so as to come into contact with the touch panel lines (11b) when the surface of the active matrix substrate (20a) or the counter substrate (30a) is pressed.
    Type: Grant
    Filed: June 22, 2009
    Date of Patent: March 5, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takehiko Sakai, Dai Chiba, Yoshiharu Kataoka, Takuya Watanabe
  • Patent number: 8384853
    Abstract: It is an object to provide a display that can reliably shield visible light in the entire wavelength regions when viewed from an oblique direction and a viewing angle control element used for the display. A viewing angle control liquid crystal panel (2) is comprised of a liquid crystal cell (21) and an emission-side polarizing plate (22). When light having a part of wavelength components (R,G) in the visible wavelength regions enters at least at a predetermined angle, the liquid crystal cell (21) provides the incident light with a phase difference so as to function as a first light-shielding layer that shields the light of the R and G components not to pass through the emission-side polarizing plate (22).
    Type: Grant
    Filed: May 20, 2008
    Date of Patent: February 26, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takehiko Sakai, Dai Chiba, Katsuhiko Morishita, Yoshiharu Kataoka, Chikanori Tsukamura
  • Patent number: 8243032
    Abstract: A touch panel includes an insulating substrate, a transparent touch electrode provided on the insulating substrate, and a frame portion connected to a periphery of the touch electrode. The touch panel detects a touched position on the touch electrode based on an electric signal through the frame portion. The frame portion is provided between the insulating substrate and the touch electrode.
    Type: Grant
    Filed: January 31, 2007
    Date of Patent: August 14, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Shogo Nishiwaki, Yoshiharu Kataoka, Toru Daito, Shinya Tanaka, Yukihiko Nishiyama, Shingo Kawashima, Hiroyuki Kaigawa, Takayuki Urabe
  • Patent number: 8199139
    Abstract: There are provided a viewing angle control device that can provide a pure black display without coloring and have a significantly improved shielding ability in the narrow viewing angle state, and a display using the viewing angle control device. To adjust the VT (voltage-transmittance) characteristics of a viewing angle control liquid crystal panel (2) that switches a viewing angle between a wide viewing angle state and a narrow viewing angle state by using birefringence of liquid crystal, translucent electrode films (205r, 205g, 206b), to which alternating-current voltages with different frequencies are applied, are provided on a portion of at least one of a pair of translucent substrates (201, 202) sandwiching the liquid crystal, the portion corresponding to at least one color of a picture element of a display liquid crystal panel (1), so that the voltage-transmittance characteristics of the liquid crystal are adjusted.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: June 12, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tsuyoshi Okazaki, Takehiko Sakai, Katsuhiko Morishita, Yoshiharu Kataoka, Chikanori Tsukamura, Dai Chiba
  • Publication number: 20120133867
    Abstract: A negative C plate (31) is arranged to be between a polarizing plate (32) and a reflective liquid crystal panel (20). A retardation of the negative C plate (31) is set so that a combination of the negative C plate (31) and the liquid crystal panel (20) generates a phase difference of “n?/4+?/8 (n is 0, or a positive or negative integer)” for a one-way light path with respect to linearly-polarized light entering into the liquid crystal display device. This makes it possible to provide, at low cost, a liquid crystal display device whose viewing angle can be narrowed by arbitrarily setting a direction in which visibility is limited.
    Type: Application
    Filed: February 6, 2012
    Publication date: May 31, 2012
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Takehiko Sakai, Dai Chiba, Katsuhiko Morishita, Yoshiharu Kataoka, Chikanori Tsukamura