Patents by Inventor Chihiro Tanaka

Chihiro Tanaka 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: 20190114027
    Abstract: There is provided a display device equipped with a touch sensor that can decrease the area of the mounting surface with electromagnetic interference reduced. The display device includes a plurality of drive electrodes, an output circuit connected to the plurality of drive electrodes, a power supply circuit, and a resistor element. A power of the output circuit is connected to the power supply circuit through the resistor element.
    Type: Application
    Filed: October 11, 2018
    Publication date: April 18, 2019
    Inventors: Toshihiko TANAKA, Naoki TAKADA, Chihiro TANAKA
  • Patent number: 10197946
    Abstract: A developing apparatus includes a rotary shaft member, a sheet member including a first developer conveying portion, an internal edge of which is held by the rotary shaft member, and which conveys developer in a first direction along a rotary shaft of the rotary shaft member, and a second developer conveying portion which conveys the developer in a second direction opposite to the first direction along the rotary shaft. The second developer conveying portion has an internal edge held by the rotary shaft member, and the rotary shaft member is radially disposed between the internal edges of the first and second developer conveying portions. In addition, a reinforcing unit reinforces the sheet member so as to have different degrees of reinforcement with respect to each of the first and second developer conveying portions.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: February 5, 2019
    Assignee: CANON FINETECH NISCA INC.
    Inventors: Hideo Nagura, Ryo Nakajima, Chihiro Tanaka
  • Patent number: 10175795
    Abstract: According to one embodiment, a sensor-equipped display device includes a display panel which includes a sensor driving electrode disposed in a display area for displaying an image, detection electrodes each including a body portion opposed to the sensor driving electrode in the display area and a broadened portion connected to the body portion and formed to be wider than the body portion, and a lead line disposed in a non-display area outside the display area and electrically connected to the broadened portion. The broadened portion is disposed in the non-display area without being overlaid on the display area in planar view.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: January 8, 2019
    Assignee: Japan Display Inc.
    Inventors: Hayato Kurasawa, Toshihiko Tanaka, Naoki Takada, Chihiro Tanaka, Koji Ishizaki
  • Patent number: 10133106
    Abstract: An image quality of a display device is improved. The display device includes: a display unit having a display functional layer; a cover member having a front surface and a back surface positioned on an opposite side of the front surface and covering the display unit; and a polarizing plate having a front surface so as to oppose the back surface of the cover member through a space spreading along the back surface of the cover member. Also, a reflection suppressing layer reducing reflected light which is visually recognized on the display surface side is formed on either one of the back surface of the cover member and the front surface of the polarizing plate.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: November 20, 2018
    Assignee: Japan Display Inc.
    Inventors: Naosuke Furutani, Atsushi Nakamura, Osamu Ishige, Koji Noguchi, Chihiro Tanaka
  • Patent number: 10068538
    Abstract: According to an aspect, a display device comprising: a display unit; a plurality of electrodes arranged side by side in a first direction along a display surface of the display unit; a detecting unit that detects one of an electric resistance of the electrodes, a voltage, and a current; and a specifying unit that specifies temperature distribution of the display surface based on the one of the electric resistance of the electrodes, the voltage, and the current. The electrodes are tapered in a second direction along the display surface and orthogonal to the first direction, and the electrodes include a first electrode tapered toward one side in the second direction and a second electrode tapered toward the other side opposite to the one side. The first and second electrodes are alternately arranged side by side in the first direction.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: September 4, 2018
    Assignee: Japan Display Inc.
    Inventors: Chihiro Tanaka, Toshihiko Tanaka, Toshinori Uehara
  • Publication number: 20180224986
    Abstract: According to an aspect, a display apparatus includes: a plurality of pixels configured to display an image; a plurality of signal lines configured to supply pixel signals to the pixels; a plurality of detection conductors configured to be capacitively coupled to the signal lines; and a controller configured to output the pixel signals to the signal lines and read detection signals generated in the detection conductors due to the pixel signals.
    Type: Application
    Filed: January 31, 2018
    Publication date: August 9, 2018
    Inventors: Chihiro TANAKA, Naoki TAKADA, Toshihiko TANAKA
  • Patent number: 9977369
    Abstract: A developer conveying apparatus for conveying a developer that develops an electrostatic latent image includes a rotation unit which rotates around a rotation shaft extending in an axial direction and parallel to a developer conveying direction, a first developer conveying portion which is provided in the rotation unit and which has an opening configured to convey the developer in a first axial direction of the rotation shaft, and a second developer conveying portion which is provided in the rotation unit and which has an opening configured to convey the developer in a second axial direction opposite to the first axial direction. A distance from the rotation shaft to the opening in the first developer conveying portion is different than a distance from the rotation shaft to the opening in the second developer conveying portion.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: May 22, 2018
    Assignee: CANON FINETECH NISCA INC.
    Inventors: Hideo Nagura, Chihiro Tanaka, Masashi Wakisaka, Naoki Tamaru, Ryo Nakajima, Tsuyoshi Takahashi
  • Publication number: 20180136768
    Abstract: According to one embodiment, a touch detection device includes first detection electrodes in a detection area, second detection electrodes in the detection area, extending to intersect the first detection electrodes, first control lines connected to the first detection electrodes, respectively, and provided in a non-detection area, and second control lines connected to the second detection electrodes, respectively, and provided in the non-detection area. The second control lines overlap the first control lines at a plurality of positions as seen in plan view, such that areas of overlapping portions in which the first control lines overlap the second control lines are substantially equalized.
    Type: Application
    Filed: October 31, 2017
    Publication date: May 17, 2018
    Inventors: Chihiro TANAKA, Naoki TAKADA, Toshihiko TANAKA, Hayato KURASAWA, Koji ISHIZAKI, Tatsuya WAKIMOTO, Masaki MIYATAKE
  • Publication number: 20180095587
    Abstract: A display apparatus includes a first substrate, a second substrate, a display functional layer, first electrodes, second electrodes, third electrodes, and a drive circuit. The second substrate faces the first substrate. The display functional layer is provided between the first substrate and the second substrate and used to display an image in a display area. The first electrodes are provided in the display area between the first substrate and the second substrate. The second electrodes are provided, facing the first electrodes, in the display area on the surface of the second substrate. The third electrodes are provided in a frame area on the outer side of the display area. The drive circuit supplies a first drive signal to at least one of the first electrodes and the second electrodes.
    Type: Application
    Filed: October 2, 2017
    Publication date: April 5, 2018
    Inventors: Hayato KURASAWA, Naoki TAKADA, Shota HOSAKA, Toshihiko TANAKA, Chihiro TANAKA, Taiki KASAI
  • Publication number: 20170083137
    Abstract: According to one embodiment, a sensor-equipped display device includes a display panel which includes a sensor driving electrode disposed in a display area for displaying an image, detection electrodes each including a body portion opposed to the sensor driving electrode in the display area and a broadened portion connected to the body portion and formed to be wider than the body portion, and a lead line disposed in a non-display area outside the display area and electrically connected to the broadened portion. The broadened portion is disposed in the non-display area without being overlaid on the display area in planar view.
    Type: Application
    Filed: September 15, 2016
    Publication date: March 23, 2017
    Inventors: Hayato KURASAWA, Toshihiko TANAKA, Naoki TAKADA, Chihiro TANAKA, Koji ISHIZAKI
  • Publication number: 20160306294
    Abstract: A conveying unit includes a rotary shaft member and a sheet member. The conveying unit is disposed so as to be rotatable with respect to a developer housing container. The conveying unit replenishes developer in a radius direction while stirring the developer in a direction of a rotary shaft by rotation. The conveying unit includes a plurality of portions that adjusts stirring performance of the developer in the direction of a rotary shaft and has different strength, as reinforcing portions that adjust a bend of the sheet member.
    Type: Application
    Filed: March 24, 2016
    Publication date: October 20, 2016
    Inventors: Hideo Nagura, Ryo Nakajima, Chihiro Tanaka
  • Patent number: 9454939
    Abstract: A display apparatus is configured to allow a user positioned in a first direction to visually recognize a first image and to allow a user positioned in a second direction different from the first direction to visually recognize a second image. The display apparatus includes a display unit that alternately displays the first and second images; an irradiation unit that provides irradiation light; a color filter that respectively includes first and second areas for the first and second images, through which the irradiation light is transmitted; and a distribution unit that distributes the irradiation light transmitted through the first area of the color filter to the first direction and through the second area of the color filter to the second direction. The color filter includes color components of three primary colors and a white color.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: September 27, 2016
    Assignee: Japan Display Inc.
    Inventors: Tae Nakahara, Chihiro Tanaka
  • Publication number: 20160202525
    Abstract: According to one embodiment, a display device includes a display panel including a first surface and a second surface on an opposite side to the first surface, configured to display an image on the second surface, a cover glass includes a third surface and a fourth surface on an opposite side to the third surface, the third surface facing the second surface of the display panel, an adhesive layer configured to fix the display panel and the cover glass to each other and an optical film fixed to the fourth surface of the cover glass.
    Type: Application
    Filed: January 11, 2016
    Publication date: July 14, 2016
    Inventors: Chihiro Tanaka, Koji Noguchi, Naosuke Furutani, Toshihiko Tanaka
  • Patent number: 9390668
    Abstract: According to an aspect, a liquid-crystal display device includes: a liquid crystal layer; and a control unit that controls a display operation. The control unit performs a first display control mode when a response speed of the liquid crystal layer is equal to or higher than a predetermined speed and performs a second display control mode when the response speed of the liquid crystal layer is lower than the predetermined speed. In the first display control mode, the control unit executes a display control at a first frame rate with which a number of frames per unit time is equal to a predetermined number. In the second display control mode, the control unit executes a display control at a second frame rate obtained by dividing the number of frames at the first frame rate by an integer equal to or larger than 2.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: July 12, 2016
    Assignee: Japan Display Inc.
    Inventors: Toshiharu Matsushima, Chihiro Tanaka
  • Publication number: 20160187813
    Abstract: A developer conveying apparatus for conveying a developer that develops an electrostatic latent image includes a rotation unit which rotates around rotation shaft pallalel to a developer conveying direction, a first developer conveying portion which is provided in the rotation unit and which conveys the developer in an axial direction of the rotation shaft, and a second developer conveying portion which is provided in the rotation unit at a position where a distance from the rotation shaft is different from that of the first developer conveying portion, and which conveys the developer in a direction opposite to that of the first developer conveying portion.
    Type: Application
    Filed: December 21, 2015
    Publication date: June 30, 2016
    Inventors: Hideo Nagura, Chihiro Tanaka, Masashi Wakisaka, Naoki Tamaru, Ryo Nakajima, Tsuyoshi Takahashi
  • Publication number: 20160131931
    Abstract: An image quality of a display device is improved. The display device includes: a display unit having a display functional layer; a cover member having a front surface and a back surface positioned on an opposite side of the front surface and covering the display unit; and a polarizing plate having a front surface so as to oppose the back surface of the cover member through a space spreading along the back surface of the cover member. Also, a reflection suppressing layer reducing reflected light which is visually recognized on the display surface side is formed on either one of the back surface of the cover member and the front surface of the polarizing plate.
    Type: Application
    Filed: November 9, 2015
    Publication date: May 12, 2016
    Inventors: Naosuke FURUTANI, Atsushi NAKAMURA, Osamu ISHIGE, Koji NOGUCHI, Chihiro TANAKA
  • Patent number: 9318057
    Abstract: A display apparatus allowing a user positioned in a first direction to visually recognize a first image and allowing a user positioned in a second direction different from the first direction to visually recognize a second image includes: a display unit displaying a combined image formed by combining the first image with the second image; an irradiation unit irradiating the display unit displaying the combined image with irradiation light; a distribution unit distributing components corresponding to the first image of the irradiation light transmitted through the display unit to the first direction and distributing components corresponding to the second image of the irradiation light transmitted through the display unit to the second direction; and a cancellation unit cancelling luminance characteristics of the irradiation light distributed by the distribution unit.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: April 19, 2016
    Assignee: Japan Display Inc.
    Inventors: Chihiro Tanaka, Toshinori Uehara
  • Publication number: 20160012760
    Abstract: According to an aspect, a display device comprising: a display unit; a plurality of electrodes arranged side by side in a first direction along a display surface of the display unit; a detecting unit that detects one of an electric resistance of the electrodes, a voltage, and a current; and a specifying unit that specifies temperature distribution of the display surface based on the one of the electric resistance of the electrodes, the voltage, and the current. The electrodes are tapered in a second direction along the display surface and orthogonal to the first direction, and the electrodes include a first electrode tapered toward one side in the second direction and a second electrode tapered toward the other side opposite to the one side. The first and second electrodes are alternately arranged side by side in the first direction.
    Type: Application
    Filed: July 9, 2015
    Publication date: January 14, 2016
    Inventors: Chihiro TANAKA, Toshihiko TANAKA, Toshinori UEHARA
  • Publication number: 20150379946
    Abstract: A display apparatus is configured to allow a user positioned in a first direction to visually recognize a first image and to allow a user positioned in a second direction different from the first direction to visually recognize a second image. The display apparatus includes a display unit that alternately displays the first and second images; an irradiation unit that provides irradiation light; a color filter that respectively includes first and second areas for the first and second images, through which the irradiation light is transmitted; and a distribution unit that distributes the irradiation light transmitted through the first area of the color filter to the first direction and through the second area of the color filter to the second direction. The color filter includes color components of three primary colors and a white color.
    Type: Application
    Filed: September 9, 2015
    Publication date: December 31, 2015
    Inventors: Tae Nakahara, Chihiro Tanaka
  • Patent number: 9167140
    Abstract: An imaging device includes a welded part on a lens barrel side that is hardened after a contact portion of a lens barrel or a contact part on the lens barrel side is softened, where the contact portion of the lens barrel and the contact part on the lens barrel side are fixed, and a welded part on a light-receiving circuit side that is hardened after a contact portion of the light-receiving circuit or a contact part on a light-receiving circuit side is softened, where the contact portion of the light-receiving circuit and the contact part on the light-receiving circuit side are fixed.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: October 20, 2015
    Assignee: RICOH COMPANY, LTD.
    Inventors: Mitsuru Nakajima, Tetsuya Ogata, Kenichi Yoshimura, Kohei Shimizu, Chihiro Tanaka