Patents by Inventor Takatomo Yoshioka

Takatomo Yoshioka 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: 11411409
    Abstract: A management device 21 comprising a main control part 23 that, during charging of a plurality of power storage elements 41 connected in series, outputs a first pull-down signal to a converter 11 so as to lower a charging voltage when the cell voltage of any of the power storage elements 41 is equal to or greater than a first threshold value.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: August 9, 2022
    Assignee: GS Yuasa International Ltd.
    Inventors: Tomoshige Inoue, Katsuhisa Michinaga, Takatomo Yoshioka, Takashi Ikeda, Kota Seto
  • Publication number: 20200153255
    Abstract: A management device 21 comprising a main control part 23 that, during charging of a plurality of power storage elements 41 connected in series, outputs a first pull-down signal to a converter 11 so as to lower a charging voltage when the cell voltage of any of the power storage elements 41 is equal to or greater than a first threshold value.
    Type: Application
    Filed: April 27, 2018
    Publication date: May 14, 2020
    Inventors: Tomoshige INOUE, Katsuhisa MICHINAGA, Takatomo YOSHIOKA, Takashi IKEDA, Kota SETO
  • Patent number: 10539626
    Abstract: An energy storage apparatus includes a plurality of energy storage devices connected in series, a voltage detection unit configured to detect voltage of each of the energy storage devices, and a monitoring unit configured to monitor the plurality of energy storage devices. The monitoring unit determines a state of the energy storage apparatus in accordance with average cell voltage or an average SOC of the plurality of energy storage devices and minimum cell voltage of the plurality of energy storage devices.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: January 21, 2020
    Assignee: GS YUASA INTERNATIONAL LTD.
    Inventors: Takatomo Yoshioka, Katsuhisa Michinaga, Takumi Kimura
  • Publication number: 20180095137
    Abstract: An energy storage apparatus includes a plurality of energy storage devices connected in series, a voltage detection unit configured to detect voltage of each of the energy storage devices, and a monitoring unit configured to monitor the plurality of energy storage devices. The monitoring unit determines a state of the energy storage apparatus in accordance with average cell voltage or an average SOC of the plurality of energy storage devices and minimum cell voltage of the plurality of energy storage devices.
    Type: Application
    Filed: September 11, 2017
    Publication date: April 5, 2018
    Inventors: Takatomo Yoshioka, Katsuhisa Michinaga, Takumi Kimura
  • Patent number: 9728115
    Abstract: A liquid crystal display device of the field sequential system is realized that is capable of suppressing an occurrence of a color shift. The liquid crystal display device of the field sequential system includes a minimum responsive color difference data correction unit (122) that corrects a data value of pixel data of a color outside a displayable range to a value of a color in the displayable range, a tristimulus value-digital gradation value conversion unit (124) that converts the corrected pixel data to digital gradation data, and a digital gradation data correction unit (126) that performs a correction for over driving on the digital gradation data.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: August 8, 2017
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hidekazu Miyata, Takatomo Yoshioka
  • Patent number: 9557600
    Abstract: A backlight unit includes excellent heat radiation characteristics. The backlight unit of an embodiment of the present invention includes a chassis and a light source attached to the chassis. As the light source, an LED is preferably used. The chassis includes an aluminum base or aluminum layer, and a porous alumina layer or pore-sealed porous alumina layer provided on the surface of the aluminum base or aluminum layer.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: January 31, 2017
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Takao Imaoku, Takatomo Yoshioka, Kohji Fujiwara
  • Patent number: 9536491
    Abstract: A source driver generates a plurality of gradation voltages based on a plurality of gradation reference voltages VH255 to VL255 generated by a gradation reference voltage generation circuit, and drives the data lines using the generated gradation voltages. The control unit sets a waiting time before the power of the source driver is cut off, and controls the gradation reference voltage generation circuit such that all the plurality of gradation reference voltages VH255 to VL255 become the same voltage during the waiting time. In this way, the same voltages are written into the pixel circuits and the charge remaining in the pixel circuits are discharged, and thus, an afterimage, a ghosting, and a flickering caused by the remaining charge when the power is cut off are prevented.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: January 3, 2017
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hidekazu Miyata, Yuichi Kita, Takatomo Yoshioka
  • Patent number: 9508297
    Abstract: The present invention provides a liquid-crystal-driving method of driving liquid crystal by causing a potential difference between a pair of electrodes provided for one of upper and lower substrates, wherein a DC image sticking and a flicker are sufficiently reduced, and a liquid crystal display device driven by using the liquid-crystal-driving method. The present invention relates to a method of driving liquid crystal by causing a potential difference between a pair of electrodes provided for one of upper and lower substrates. In the liquid-crystal-driving method, a driving operation of driving liquid crystal by causing a potential between a pair of electrodes is executed. In the driving operation, the absolute value of a second offset voltage is larger than that of a first offset voltage.
    Type: Grant
    Filed: April 22, 2013
    Date of Patent: November 29, 2016
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takatomo Yoshioka, Yuichi Kita, Yoshiki Nakatani
  • Publication number: 20160178979
    Abstract: A liquid crystal display device (100) has a liquid crystal display panel (1), which includes a first substrate (10), a second substrate (20), and a liquid crystal layer (30). The first substrate includes a first electrode (11) provided for each pixel, and a second electrode (12) for generating a lateral field across the liquid crystal layer in cooperation with the first electrode, whereas the second substrate includes a third electrode (21) for generating a vertical field across the liquid crystal layer in cooperation with the first electrode and the second electrode.
    Type: Application
    Filed: February 21, 2014
    Publication date: June 23, 2016
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yuichi KITA, Yoshiki NAKATANI, Takao IMAOKU, Iori AOYAMA, Takatomo YOSHIOKA
  • Patent number: 9372371
    Abstract: The present invention provides a liquid crystal display panel which is capable of providing a sufficiently high response speed and an excellent transmittance, and a liquid crystal display device. The liquid crystal display panel of the present invention includes a first substrate, a second substrate, and a liquid crystal layer disposed between the substrates. The first substrate and the second substrate have electrodes. The electrodes of the second substrate include a pair of comb-shaped electrodes and a slit-formed electrode.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: June 21, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Takatomo Yoshioka, Iori Aoyama, Takao Imaoku, Yuichi Iyama, Kazuhiko Tsuda
  • Patent number: 9348178
    Abstract: The present invention provides a liquid crystal display panel and a liquid crystal display device each of which exhibits a sufficiently high response speed and an excellent transmittance. The liquid crystal display panel of the present invention includes a first substrate; a second substrate; and a liquid crystal layer disposed between the substrates, the first substrate and the second substrate each comprising an electrode, the electrode of the second substrate including a pair of comb-shaped electrodes and a planar electrode, the liquid crystal layer containing liquid crystal molecules which are inclined from an orthogonal direction to the main faces of the substrates between the pair of comb-shaped electrodes in a plan view of the main faces of the substrates when a voltage lower than a threshold voltage is applied.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: May 24, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Iori Aoyama, Takao Imaoku, Yuichi Iyama, Takatomo Yoshioka, Kazuhiko Tsuda
  • Publication number: 20160071449
    Abstract: A liquid crystal display device of the field sequential system is realized that is capable of suppressing an occurrence of a color shift. The liquid crystal display device of the field sequential system includes a minimum responsive color difference data correction unit (122) that corrects a data value of pixel data of a color outside a displayable range to a value of a color in the displayable range, a tristimulus value-digital gradation value conversion unit (124) that converts the corrected pixel data to digital gradation data, and a digital gradation data correction unit (126) that performs a correction for over driving on the digital gradation data.
    Type: Application
    Filed: February 18, 2014
    Publication date: March 10, 2016
    Inventors: Hidekazu MIYATA, Takatomo YOSHIOKA
  • Patent number: 9252282
    Abstract: The present invention provides a liquid crystal display device that can achieve a sufficiently-high-speed response and has a sufficiently excellent transmittance and a thin film transistor array substrate preferably used in the liquid crystal display device. The thin film transistor array substrate according to the present invention is a thin film transistor array substrate that includes, as electrodes, one pair of comb electrodes and a sheet electrode, and at least one electrode selected from the group consisting of the pair of comb electrodes and the sheet electrode being electrically connected along a pixel line.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: February 2, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yuichi Iyama, Takao Imaoku, Iori Aoyama, Takatomo Yoshioka, Kazuhiko Tsuda
  • Publication number: 20150339968
    Abstract: The present invention provides a field sequential liquid crystal display device which can provide display with an appropriate gray scale value in a period when the period succeeds a period in which the light source in the backlight unit is turned off.
    Type: Application
    Filed: December 10, 2013
    Publication date: November 26, 2015
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Takatomo YOSHIOKA, Yuichi KITA, Yoshiki NAKATANI, Takao IMAOKU, Iori AOYAMA
  • Patent number: 9165948
    Abstract: The present invention provides a thin film transistor array substrate and a liquid crystal display device including the thin film transistor array substrate that are preferably applicable to a liquid crystal display device including the three-layered electrode structure that enables high response speed and high transmittance, and can have a high aperture ratio.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: October 20, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yuichi Iyama, Takatomo Yoshioka, Kazuhiko Tsuda
  • Publication number: 20150293413
    Abstract: The present invention provides a thin-film transistor array substrate capable of sufficiently preventing a decrease in the aperture ratio and insufficient charging of thin-film transistor elements due to shortening of signal writing time for pixels while achieving high speed driving; and a liquid crystal display device including the thin-film transistor array substrate.
    Type: Application
    Filed: November 26, 2013
    Publication date: October 15, 2015
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Iori AOYAMA, Yuichi KITA, Takatomo YOSHIOKA, Takao IMAOKU, Yoshiki NAKATANI
  • Publication number: 20150212377
    Abstract: The present invention provides a liquid crystal display panel and a liquid crystal display device each of which exhibits a sufficiently increased transmittance and an excellent response speed in falling, with its three-layered electrode structure that controls the alignment of liquid crystal molecules by an electric field in both rising and falling. The liquid crystal display panel of the present invention includes: a first substrate; a second substrate; and a liquid crystal layer disposed between the substrates, the first substrate and the second substrate each having an electrode, the first substrate further having a dielectric layer, the electrode of the second substrate including a pair of comb-shaped electrodes and a planar electrode.
    Type: Application
    Filed: May 31, 2012
    Publication date: July 30, 2015
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Takao Imaoku, Yuichi Iyama, Iori Aoyama, Takatomo Yoshioka, Kazuhiko Tsuda, Mitsuhiro Murata
  • Publication number: 20150206498
    Abstract: A source driver generates a plurality of gradation voltages based on a plurality of gradation reference voltages VH255 to VL255 generated by a gradation reference voltage generation circuit, and drives the data lines using the generated gradation voltages. The control unit sets a waiting time before the power of the source driver is cut off, and controls the gradation reference voltage generation circuit such that all the plurality of gradation reference voltages VH255 to VL255 become the same voltage during the waiting time. In this way, the same voltages are written into the pixel circuits and the charge remaining in the pixel circuits are discharged, and thus, an afterimage, a ghosting, and a flickering caused by the remaining charge when the power is cut off are prevented.
    Type: Application
    Filed: September 20, 2013
    Publication date: July 23, 2015
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Hidekazu Miyata, Yuichi Kita, Takatomo Yoshioka
  • Publication number: 20150177572
    Abstract: The present invention provides a liquid crystal display device that can suppress flicker. The liquid crystal display device of the present invention includes a pair of substrates; and a liquid crystal layer interposed between the pair of substrates, at least one of the pair of substrates including a first electrode that includes at least two parallel comb teeth and at least two parallel slits, a second plate electrode, and an insulating film that separates the first electrode and the second electrode into different layers, assuming that the width of a comb tooth is L1 and the width of another comb tooth is L2 among the at least two comb teeth; and that the width of a slit is S1 and the width of another slit is S2 among the at least two slits, then L1, L2, S1, and S2 satisfy the formulas (H1) to (H6).
    Type: Application
    Filed: July 18, 2013
    Publication date: June 25, 2015
    Inventors: Yuichi Kita, Kazuhiko Tsuda, Takatomo Yoshioka
  • Publication number: 20150146125
    Abstract: The present invention provides a liquid crystal display panel and a liquid crystal display device each having sufficiently excellent transmittance, and a thin film transistor array substrate for use in the liquid crystal display panel and the liquid crystal display device. The present invention provides a liquid crystal display panel including a first substrate, a second substrate, and a liquid crystal layer interposed between the first and second substrates, wherein the first substrate includes an electrode having a T-shaped branched section, and the electrode includes linear portions forming the T-shaped branched section and separately extending in directions different from a pixel array direction.
    Type: Application
    Filed: April 17, 2013
    Publication date: May 28, 2015
    Inventors: Yuichi Kita, Takatomo Yoshioka, Yoshiki Nakatani, Kazuhiko Tsuda