Patents by Inventor Yuhji Yashiro

Yuhji Yashiro 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: 10910718
    Abstract: A transparent antenna 17 is provided with: an antenna body portion 18 having a ring-shape and configured to generate a magnetic field at the center thereof; a lead-out wire portions 19 led out of the antenna body portion 18, the lead-out wire portions 19 including a large-width portions 23 having a line width greater than a line width of the antenna body portion 18.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: February 2, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yuhji Yashiro, Hiroyuki Ogawa, Yasuhiro Sugita
  • Patent number: 10819007
    Abstract: Provided is a display device that ensures both of the conductivity for realizing the antenna function and the light transmissivity for transmitting light that forms a video image displayed on the display device, and at the same, allows short-range wireless communication to be performed in a wide range in a display section of the display device. A display device 100 includes a display panel 3, an antenna pattern 4 for driving, and antenna patterns 5A, 5B for propagation. The antenna driving unit drives the antenna pattern 4 for driving, at predetermined carrier wave frequency, whereby the antenna pattern 4 for driving and the antenna pattern 5A or 5B for propagation are electromagnetically coupled. As a result, proximity wireless communication can be performed in a wide range of a display area AR1 of the display device 100.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: October 27, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yuhji Yashiro, Yasuhiro Sugita, Makoto Nakamura
  • Patent number: 10411353
    Abstract: Included is an antenna wire 21, formed by a reticulated metal film in a shape of a ring, which generates a magnetic field on a center side thereof. The antenna wire 21 has a first extension part 23 extending along a direction of extension of the antenna wire 21 and a second extension part 24 extending along a direction intersecting with the direction of extension. The antenna wire 21 is configured such that a per unit length area of the first extension part 23 is larger than a per unit length area of the second extension part 24.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: September 10, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yasuhiro Sugita, Tomohiro Kimura, Yuhji Yashiro
  • Publication number: 20180314369
    Abstract: Provided is a device for touch panel characterized in that the deterioration of the performance of an antenna due to eddy current generated between the antenna and a touch sensor (electrodes for touch panel) can be prevented, and that the manufacturing cost can be reduced. A touch-panel-equipped display device 100 includes a coexisting conductive layer L_Y_Ant and an X-axis-direction electrode layer L_X. The coexisting conductive layer L_Y_Ant includes first sensor electrode patterns for touch panel and an antenna pattern. The X-axis-direction electrode layer L_X includes second sensor electrode patterns for touch panel that is arranged so as to intersect with the first sensor electrode patterns when viewed in a plan view.
    Type: Application
    Filed: October 18, 2016
    Publication date: November 1, 2018
    Inventors: YUHJI YASHIRO, YASUHIRO SUGITA
  • Publication number: 20180294546
    Abstract: Provided is a display device that ensures both of the conductivity for realizing the antenna function and the light transmissivity for transmitting light that forms a video image displayed on the display device, and at the same, allows short-range wireless communication to be performed in a wide range in a display section of the display device. A display device 100 includes a display panel 3, an antenna pattern 4 for driving, and antenna patterns 5A, 5B for propagation. The antenna driving unit drives the antenna pattern 4 for driving, at predetermined carrier wave frequency, whereby the antenna pattern 4 for driving and the antenna pattern 5A or 5B for propagation are electromagnetically coupled. As a result, proximity wireless communication can be performed in a wide range of a display area AR1 of the display device 100.
    Type: Application
    Filed: May 19, 2016
    Publication date: October 11, 2018
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: YUHJI YASHIRO, YASUHIRO SUGITA, MAKOTO NAKAMURA
  • Patent number: 10037109
    Abstract: Provided are (i) a touch panel substrate improved in uniformity of in-plane light transmittance and (ii) an electronic device employing the touch panel substrate. First sensor electrodes (11) are arranged in a first electrode layer (10), and second electrodes are arranged in a second electrode layer. In part of an outer edge of a first sensor electrode (11) which part is arranged side by side with an outer edge of a second electrode when viewed from above, ends of conductor lines (13) of the first sensor electrode (11) have respective wide width parts (40) each of which is wider than the other part of the conductor lines (13) when viewed from above.
    Type: Grant
    Filed: December 24, 2013
    Date of Patent: July 31, 2018
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yuhji Yashiro, Kazutoshi Kida
  • Patent number: 9880680
    Abstract: Provided are (i) a touch panel substrate improved in uniformity of in-plane light transmittance and (ii) an electronic device employing the touch panel substrate. A plurality of first sensor electrodes (11) are formed by dividing first conductor lines (13). At least one of a pair of ends of the first conductor lines (13), which pair of ends face each other via a dividing line along which the first conductor lines (13) are divided, has a wide width part (40) which is wider than the other part of the first conductor lines (13), when viewed from above.
    Type: Grant
    Filed: December 24, 2013
    Date of Patent: January 30, 2018
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yuhji Yashiro, Kazutoshi Kida
  • Patent number: 9870493
    Abstract: A communication device including a device-side antenna 30 for wireless communication with an IC card 10 including a card-side antenna 11 wound in a rectangular form. The antenna 30 is formed in one or multiple loops. During the wireless communication with the IC card 10 having an inner perimeter with a long dimension of 69 mm and a short dimension of 38 mm at a distance of 25 mm, an inner perimeter of the antenna 30 is formed at a position at which intensity H of a magnetic field produced by the card-side antenna 11 in a direction perpendicular to a surface on which the antenna 30 is disposed is in a range expressed by inequation (1): 0.037I/4?<H<0.063I/4???(1) where I is a current of the card-side antenna [A] and ? is pi.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: January 16, 2018
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yuhji Yashiro, Hiroyuki Ogawa, Yasuhiro Sugita
  • Patent number: 9863991
    Abstract: A method of inspecting a sensor sheet formed by a roll-to-roll scheme for a touch sensor, the sensor sheet including a roll sheet and a sensor electrode layer thereon, the sensor electrode layer including sensor electrodes running in a prescribed direction, the sensor sheet further including a terminal connected to the sensor electrode layer and alignment marks, the method including: arranging the sensor sheet on an inspection table of an inspection device, the inspection table having an alignment mark and inspection electrodes running in another prescribed direction such that at least one of the alignment marks aligns with the alignment mark on the inspection table and such that the inspection electrodes face the sensor electrodes orthogonally in a plan view and are vertically separated by a dielectric to form capacitances at respective intersections therebetween; measuring the capacitances at the respective intersections; and outputting the measured capacitances as an inspection result.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: January 9, 2018
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yuhji Yashiro, Kazuya Yoshimura, Shinji Matsumoto
  • Publication number: 20170373397
    Abstract: A transparent antenna 17 is provided with: an antenna body portion 18 having a ring-shape and configured to generate a magnetic field at the center thereof; a lead-out wire portions 19 led out of the antenna body portion 18, the lead-out wire portions 19 including a large-width portions 23 having a line width greater than a line width of the antenna body portion 18.
    Type: Application
    Filed: December 15, 2015
    Publication date: December 28, 2017
    Inventors: YUHJI YASHIRO, HIROYUKI OGAWA, YASUHIRO SUGITA
  • Patent number: 9846512
    Abstract: Provided is a method for inspecting a touch panel with which method it is possible to perform an inspection with high accuracy and to allow an improvement in yield. A drive signal is supplied to either one of sensor electrodes (12) and an inspection electrode (142), a plurality of sense signals related to the respective sensor electrodes (12) are obtained from the other of the sensor electrodes and the inspection electrode, and conditions of the sensor electrodes (12) are determined according to the sense signals.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: December 19, 2017
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yuhji Yashiro, Kazuya Yoshimura, Shogo Hayashi, Kazutoshi Kida, Shinji Matsumoto, Takenori Maruyama, Tsuyoshi Ohmori, Akira Yasuta
  • Publication number: 20170352959
    Abstract: Included is an antenna wire 21, formed by a reticulated metal film in a shape of a ring, which generates a magnetic field on a center side thereof. The antenna wire 21 has a first extension part 23 extending along a direction of extension of the antenna wire 21 and a second extension part 24 extending along a direction intersecting with the direction of extension. The antenna wire 21 is configured such that a per unit length area of the first extension part 23 is larger than a per unit length area of the second extension part 24.
    Type: Application
    Filed: December 15, 2015
    Publication date: December 7, 2017
    Applicant: Sharp Kabushiki Kaisha
    Inventors: YASUHIRO SUGITA, TOMOHIRO KIMURA, YUHJI YASHIRO
  • Publication number: 20170344766
    Abstract: A communication device including a device-side antenna 30 for wireless communication with an IC card 10 including a card-side antenna 11 wound in a rectangular form. The antenna 30 is formed in one or multiple loops. During the wireless communication with the IC card 10 having an inner perimeter with a long dimension of 69 mm and a short dimension of 38 mm at a distance of 25 mm, an inner perimeter of the antenna 30 is formed at a position at which intensity H of a magnetic field produced by the card-side antenna 11 in a direction perpendicular to a surface on which the antenna 30 is disposed is in a range expressed by inequation (1): 0.037I/4?<H<0.063I/4???(1) where I is a current of the card-side antenna [A] and ? is pi.
    Type: Application
    Filed: November 18, 2015
    Publication date: November 30, 2017
    Inventors: YUHJI YASHIRO, HIROYUKI OGAWA, YASUHIRO SUGITA
  • Patent number: 9811221
    Abstract: An input device having a row electrode and a column electrode made by patterning a meshed metallic layer by forming a dividing section on a metallic line constituting the meshed metallic layer can suppress variability in areas of individual dividing sections formed on the metallic lines, whereby uneven shading due to the patterned, meshed conductive layer is suppressed from appearing on a touch operation surface. In the input device having the row electrode and the column electrode made by patterning the meshed metallic layer by forming the dividing section on the metallic line constituting the meshed metallic layer, a mesh side section intersecting with an ideal contour Sp2 of the column electrode (meshed electrode) corresponding to one side of a mesh in the metallic line Mw2 is divided by a dividing section Rs that does not overlap with an intersection Mcp of the metallic lines to form an actual contour of the column electrode.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: November 7, 2017
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Shogo Hayashi, Kazutoshi Kida, Yuhji Yashiro, Kazuya Yoshimura
  • Patent number: 9798430
    Abstract: An input device having a row electrode and a column electrode made by patterning a meshed metallic layer by forming a dividing section on a metallic line constituting the meshed metallic layer can make areas of individual dividing sections of the metallic lines uniform, whereby uneven shading due to the patterned, meshed conductive layer is suppressed from appearing on a touch operation surface. In the input device having the row electrode and the column electrode made by patterning the meshed metallic layer by forming the dividing section on the metallic line constituting the meshed metallic layer, at an intersecting section where metallic lines Mw2 constituting a meshed conductive layer Lp2 intersects an ideal contour Sp2 of a meshed column electrode, the direction for dividing the metallic lines at the intersecting section is set to the direction matching the direction of width of the metallic lines such that the area of the dividing section traversing the metallic line is minimal.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: October 24, 2017
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Shogo Hayashi, Kazutoshi Kida, Yuhji Yashiro, Kazuya Yoshimura
  • Patent number: 9535548
    Abstract: A display device (1) includes (i) a display panel (12) including a polarizing plate (18) on a surface of the display panel (12) and (ii) a touch panel (20) including a birefringent base material (31) on which a Y electrode pattern (32) and an X electrode pattern (33) are provided. Polarized light which has exited from the polarizing plate (18) enters the birefringent base material (31). The display device (1) includes an antireflection layer (28) which reduces reflection of the polarized light. The antireflection layer (28) is provided on a first surface of the touch panel (20) which first surface is opposite to a second surface of the touch panel (20) which second surface faces the display panel (12).
    Type: Grant
    Filed: April 22, 2013
    Date of Patent: January 3, 2017
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yuhji Yashiro, Kazutoshi Kida, Hiromi Katoh
  • Patent number: 9436334
    Abstract: Provided is an in-cell touch panel having improved display quality. An opposite substrate relating to one embodiment of the present invention is provided with a black matrix, first electrodes, which are disposed in the Y direction, and second electrodes, which are disposed in the X direction. The first electrodes and the second electrodes are formed such that the boundaries therebetween are positioned in regions that coincide with the black matrix in a planar view.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: September 6, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Kazutoshi Kida, Yasuhiro Sugita, Shinji Yamagishi, Yuhji Yashiro, Hiroyuki Ogawa
  • Patent number: 9405330
    Abstract: A touch panel substrate (5) provided with position detecting electrodes (first electrodes (12) and second electrodes (13)) includes a black matrix (17) which is made of an electrically conductive material and is electrically connected to a counter electrode (19). This provides (i) a touch panel substrate which is high in position detection performance and capable of carrying out a stable position detecting operation and which is used in an in-cell touch panel, and (ii) a display panel including such a touch panel substrate.
    Type: Grant
    Filed: July 4, 2012
    Date of Patent: August 2, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Shinji Yamagishi, Yasuhiro Sugita, Yuhji Yashiro, Kazutoshi Kida, Hiroyuki Ogawa
  • Publication number: 20160139191
    Abstract: A method of inspecting a sensor sheet formed by a roll-to-roll scheme for a touch sensor, the sensor sheet including a roll sheet and a sensor electrode layer thereon, the sensor electrode layer including sensor electrodes running in a prescribed direction, the sensor sheet further including a terminal connected to the sensor electrode layer and alignment marks, the method including: arranging the sensor sheet on an inspection table of an inspection device, the inspection table having an alignment mark and inspection electrodes running in another prescribed direction such that at least one of the alignment marks aligns with the alignment mark on the inspection table and such that the inspection electrodes face the sensor electrodes orthogonally in a plan view and are vertically separated by a dielectric to form capacitances at respective intersections therebetween; measuring the capacitances at the respective intersections; and outputting the measured capacitances as an inspection result.
    Type: Application
    Filed: February 26, 2014
    Publication date: May 19, 2016
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Yuhji YASHIRO, Kazuya YOSHIMURA, Shinji MATSUMOTO
  • Publication number: 20160124575
    Abstract: Provided is a method for inspecting a touch panel with which method it is possible to perform an inspection with high accuracy and to allow an improvement in yield. A drive signal is supplied to either one of sensor electrodes (12) and an inspection electrode (142), a plurality of sense signals related to the respective sensor electrodes (12) are obtained from the other of the sensor electrodes and the inspection electrode, and conditions of the sensor electrodes (12) are determined according to the sense signals.
    Type: Application
    Filed: February 27, 2014
    Publication date: May 5, 2016
    Inventors: Yuhji YASHIRO, Kazuya YOSHIMURA, Shogo HAYASHI, Kazutoshi KIDA, Shinji MATSUMOTO, Takenori MARUYAMA, Tsuyoshi OHMORI, Akira YASUTA