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: 11411409Abstract: 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: GrantFiled: April 27, 2018Date of Patent: August 9, 2022Assignee: GS Yuasa International Ltd.Inventors: Tomoshige Inoue, Katsuhisa Michinaga, Takatomo Yoshioka, Takashi Ikeda, Kota Seto
-
Publication number: 20200153255Abstract: 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: ApplicationFiled: April 27, 2018Publication date: May 14, 2020Inventors: Tomoshige INOUE, Katsuhisa MICHINAGA, Takatomo YOSHIOKA, Takashi IKEDA, Kota SETO
-
Patent number: 10539626Abstract: 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: GrantFiled: September 11, 2017Date of Patent: January 21, 2020Assignee: GS YUASA INTERNATIONAL LTD.Inventors: Takatomo Yoshioka, Katsuhisa Michinaga, Takumi Kimura
-
Publication number: 20180095137Abstract: 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: ApplicationFiled: September 11, 2017Publication date: April 5, 2018Inventors: Takatomo Yoshioka, Katsuhisa Michinaga, Takumi Kimura
-
Patent number: 9728115Abstract: 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: GrantFiled: February 18, 2014Date of Patent: August 8, 2017Assignee: Sharp Kabushiki KaishaInventors: Hidekazu Miyata, Takatomo Yoshioka
-
Patent number: 9557600Abstract: 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: GrantFiled: March 31, 2011Date of Patent: January 31, 2017Assignee: SHARP KABUSHIKI KAISHAInventors: Takao Imaoku, Takatomo Yoshioka, Kohji Fujiwara
-
Patent number: 9536491Abstract: 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: GrantFiled: September 20, 2013Date of Patent: January 3, 2017Assignee: Sharp Kabushiki KaishaInventors: Hidekazu Miyata, Yuichi Kita, Takatomo Yoshioka
-
Patent number: 9508297Abstract: 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: GrantFiled: April 22, 2013Date of Patent: November 29, 2016Assignee: Sharp Kabushiki KaishaInventors: Takatomo Yoshioka, Yuichi Kita, Yoshiki Nakatani
-
Publication number: 20160178979Abstract: 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: ApplicationFiled: February 21, 2014Publication date: June 23, 2016Applicant: SHARP KABUSHIKI KAISHAInventors: Yuichi KITA, Yoshiki NAKATANI, Takao IMAOKU, Iori AOYAMA, Takatomo YOSHIOKA
-
Patent number: 9372371Abstract: 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: GrantFiled: May 31, 2012Date of Patent: June 21, 2016Assignee: SHARP KABUSHIKI KAISHAInventors: Takatomo Yoshioka, Iori Aoyama, Takao Imaoku, Yuichi Iyama, Kazuhiko Tsuda
-
Patent number: 9348178Abstract: 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: GrantFiled: May 31, 2012Date of Patent: May 24, 2016Assignee: SHARP KABUSHIKI KAISHAInventors: Iori Aoyama, Takao Imaoku, Yuichi Iyama, Takatomo Yoshioka, Kazuhiko Tsuda
-
Publication number: 20160071449Abstract: 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: ApplicationFiled: February 18, 2014Publication date: March 10, 2016Inventors: Hidekazu MIYATA, Takatomo YOSHIOKA
-
Patent number: 9252282Abstract: 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: GrantFiled: March 9, 2012Date of Patent: February 2, 2016Assignee: SHARP KABUSHIKI KAISHAInventors: Yuichi Iyama, Takao Imaoku, Iori Aoyama, Takatomo Yoshioka, Kazuhiko Tsuda
-
Publication number: 20150339968Abstract: 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: ApplicationFiled: December 10, 2013Publication date: November 26, 2015Applicant: Sharp Kabushiki KaishaInventors: Takatomo YOSHIOKA, Yuichi KITA, Yoshiki NAKATANI, Takao IMAOKU, Iori AOYAMA
-
Patent number: 9165948Abstract: 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: GrantFiled: October 24, 2012Date of Patent: October 20, 2015Assignee: Sharp Kabushiki KaishaInventors: Yuichi Iyama, Takatomo Yoshioka, Kazuhiko Tsuda
-
Publication number: 20150293413Abstract: 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: ApplicationFiled: November 26, 2013Publication date: October 15, 2015Applicant: Sharp Kabushiki KaishaInventors: Iori AOYAMA, Yuichi KITA, Takatomo YOSHIOKA, Takao IMAOKU, Yoshiki NAKATANI
-
Publication number: 20150212377Abstract: 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: ApplicationFiled: May 31, 2012Publication date: July 30, 2015Applicant: SHARP KABUSHIKI KAISHAInventors: Takao Imaoku, Yuichi Iyama, Iori Aoyama, Takatomo Yoshioka, Kazuhiko Tsuda, Mitsuhiro Murata
-
Publication number: 20150206498Abstract: 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: ApplicationFiled: September 20, 2013Publication date: July 23, 2015Applicant: Sharp Kabushiki KaishaInventors: Hidekazu Miyata, Yuichi Kita, Takatomo Yoshioka
-
Publication number: 20150177572Abstract: 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: ApplicationFiled: July 18, 2013Publication date: June 25, 2015Inventors: Yuichi Kita, Kazuhiko Tsuda, Takatomo Yoshioka
-
Publication number: 20150146125Abstract: 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: ApplicationFiled: April 17, 2013Publication date: May 28, 2015Inventors: Yuichi Kita, Takatomo Yoshioka, Yoshiki Nakatani, Kazuhiko Tsuda