Patents by Inventor Takayuki Imai

Takayuki Imai 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: 20190237015
    Abstract: According to one embodiment, a display device includes a display panel in which pixel units are arranged, and a controller configured to generate image signals by multiplying display data externally supplied to each line by a luminosity adjustment factor, to supply the generated image signals to the pixel units, to accumulate power consumption of each line, and to execute black insertion if the accumulated power consumption is determined to be greater than power consumption of one previous display frame by a predetermined value, wherein the luminosity adjustment factor is acquired by substituting the power consumption of one previous frame to a decreasing function, and a display pattern including a plurality of continuing black display lines is synchronized with supply of the image signals and is displayed moving the same direction of a screen scanning direction of the display panel during the black insertion.
    Type: Application
    Filed: April 5, 2019
    Publication date: August 1, 2019
    Applicant: JAPAN DISPLAY INC.
    Inventors: Takayuki IMAI, Norio Nakamura
  • Patent number: 10304382
    Abstract: According to one embodiment, a display device includes a display panel in which pixel units are arranged, and a controller configured to generate image signals by multiplying display data externally supplied to each line by a luminosity adjustment factor, to supply the generated image signals to the pixel units, to accumulate power consumption of each line, and to execute black insertion if the accumulated power consumption is determined to be greater than power consumption of one previous display frame by a predetermined value, wherein the luminosity adjustment factor is acquired by substituting the power consumption of one previous frame to a decreasing function, and a display pattern including a plurality of continuing black display lines is synchronized with supply of the image signals and is displayed moving the same direction of a screen scanning direction of the display panel during the black insertion.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: May 28, 2019
    Assignee: JAPAN DISPLAY INC.
    Inventors: Takayuki Imai, Norio Nakamura
  • Patent number: 10283085
    Abstract: According to one embodiment, a display device includes a plurality of light sources, a display panel illuminated by the light sources and a drive circuit which drives the light sources time-divisionally to emit light sequentially based on a first image signal for displaying an image in color. The drive circuit determines whether visibility of the image displayed in color deteriorates because of external light, extracts from the first image signal a brightness signal when determining that the visibility of the image deteriorates, generates a second image signal based on the brightness signal, and drives the display panel based on the second image signal when the second image signal is generated.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: May 7, 2019
    Assignee: Japan Display Inc.
    Inventor: Takayuki Imai
  • Publication number: 20180326519
    Abstract: A saw wire and various methods of use and manufacture are provided. The saw wire includes a metal wire containing at least one of tungsten and a tungsten alloy. A surface roughness Ra of the metal wire is at most 0.15 ?m. A tensile strength of the metal wire is at least 3500 MPa. A diameter of the metal wire is at most 60 ?m.
    Type: Application
    Filed: May 9, 2018
    Publication date: November 15, 2018
    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Tomohiro KANAZAWA, Masato WADA, Takayuki IMAI, Tetsuji SHIBATA, Kazushige SUGITA, Naoki KOHYAMA, Hiroshi GOUDA, Yoshitaka MIZUGUCHI
  • Publication number: 20180326518
    Abstract: A saw wire and various methods of use and manufacture are provided. The saw wire includes a metal wire containing one of tungsten and a tungsten alloy. A surface roughness Ra of the metal wire is at most 0.15 ?m. A diameter of the metal wire is at most 60 ?m.
    Type: Application
    Filed: May 9, 2018
    Publication date: November 15, 2018
    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Tomohiro KANAZAWA, Masato WADA, Takayuki IMAI, Tetsuji SHIBATA, Kazushige SUGITA, Naoki KOHYAMA, Hiroshi GOUDA, Yoshitaka MIZUGUCHI
  • Publication number: 20180292690
    Abstract: According to an aspect, a display device includes: a first translucent substrate; a second translucent substrate facing the first translucent substrate; a liquid crystal layer including polymer dispersed liquid crystal sealed between the first translucent substrate and the second translucent substrate; at least one light emitter facing at least one of a side surface of the first translucent substrate or a side surface of the second translucent substrate; and a display controller that controls transmittance of light passing through the first translucent substrate and the second translucent substrate. A non-light-emitting period in which the at least one light emitter does not emit light is provided between a plurality of light-emitting periods in which the at least one light emitter emits light.
    Type: Application
    Filed: April 3, 2018
    Publication date: October 11, 2018
    Applicant: Japan Display Inc.
    Inventors: Tae Kurokawa, Kentaro Okuyama, Takayuki Imai
  • Patent number: 9881650
    Abstract: The present disclosure generally relates to a connector structure that prevents crosstalk in devices such as electronic and data storage devices. The connector structure is disposed in a different plane than the signal lines, but is connected to ground lines that are disposed in the same plane as the signal lines. The connector structure has a beam portion for each ground line. Additionally, there is a backbone portion that connects all of the beam portions. The beam portions are coupled to the ground lines by a ground bar. The ground bar can have a width that is equal to the width of the ground line. Additionally, the connection point between the ground line and the ground bar can be sloped, and the ground line and ground bar can be parallel to each other at the connection point. The connector structure prevents crosstalk between the signal lines.
    Type: Grant
    Filed: December 26, 2016
    Date of Patent: January 30, 2018
    Assignee: Western Digital Technologies, Inc.
    Inventors: Akihiro Sotome, Satoshi Nakamura, Masayuki Mabe, Takayuki Imai
  • Publication number: 20170352329
    Abstract: According to one embodiment, a display device includes a plurality of light sources, a display panel illuminated by the light sources and a drive circuit which drives the light sources time-divisionally to emit light sequentially based on a first image signal for displaying an image in color. The drive circuit determines whether visibility of the image displayed in color deteriorates because of external light, extracts from the first image signal a brightness signal when determining that the visibility of the image deteriorates, generates a second image signal based on the brightness signal, and drives the display panel based on the second image signal when the second image signal is generated.
    Type: Application
    Filed: June 1, 2017
    Publication date: December 7, 2017
    Applicant: Japan Display Inc.
    Inventor: Takayuki IMAI
  • Publication number: 20170301291
    Abstract: According to one embodiment, a display device includes a display panel in which pixel units are arranged, and a controller configured to generate image signals by multiplying display data externally supplied to each line by a luminosity adjustment factor, to supply the generated image signals to the pixel units, to accumulate power consumption of each line, and to execute black insertion if the accumulated power consumption is determined to be greater than power consumption of one previous display frame by a predetermined value, wherein the luminosity adjustment factor is acquired by substituting the power consumption of one previous frame to a decreasing function, and a display pattern including a plurality of continuing black display lines is synchronized with supply of the image signals and is displayed moving the same direction of a screen scanning direction of the display panel during the black insertion.
    Type: Application
    Filed: June 28, 2017
    Publication date: October 19, 2017
    Applicant: Japan Display Inc.
    Inventors: Takayuki IMAI, Norio NAKAMURA
  • Patent number: 9728137
    Abstract: According to one embodiment, a display device includes a display panel in which pixel units are arranged, and a controller configured to generate image signals by multiplying display data externally supplied to each line by a luminosity adjustment factor, to supply the generated image signals to the pixel units, to accumulate power consumption of each line, and to execute black insertion if the accumulated power consumption is determined to be greater than power consumption of one previous display frame by a predetermined value, wherein the luminosity adjustment factor is acquired by substituting the power consumption of one previous frame to a decreasing function, and a display pattern including a plurality of continuing black display lines is synchronized with supply of the image signals and is displayed moving the same direction of a screen scanning direction of the display panel during the black insertion.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: August 8, 2017
    Assignee: Japan Display Inc.
    Inventors: Takayuki Imai, Norio Nakamura
  • Patent number: 9485810
    Abstract: A handler includes: a rotating section which is a holding unit mounting section which can take a mounted state in which a holding unit for holding an IC device is mounted; and a transportation mechanism which transports the IC device held by the holding unit. The rotating section includes a heat generation section which generates heat and a heating flow path through which fluid which is heated by the heat generation section and is used for heating of the IC device passes.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: November 1, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Takayuki Imai, Haruhiko Miyamoto, Fuyumi Takata, Toshioki Shimojima
  • Patent number: 9460652
    Abstract: According to one embodiment, a display device displays an n?1th frame (n is an integer which is greater than or equal 2) and an nth frame in this order. The display device includes a display panel, calculator, adjuster, and controller. The calculator calculates power consumption of the n?1th frame. The adjuster determines whether or not the nth frame is brighter than the n?1th frame, and adjusts brightness of the nth frame based on a brightness adjustment magnification of the nth frame calculated based on the power consumption of the n?1th frame and a decreasing function, when the nth frame is not brighter than the n?1th frame. The controller stops light emission with an arbitrary timing when the nth frame is displayed, when the nth frame is brighter than the n?1th frame.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: October 4, 2016
    Assignee: Japan Display Inc.
    Inventors: Takayuki Imai, Norio Nakamura
  • Publication number: 20160035317
    Abstract: According to one embodiment, a display device includes a display panel in which pixel units are arranged, and a controller configured to generate image signals by multiplying display data externally supplied to each line by a luminosity adjustment factor, to supply the generated image signals to the pixel units, to accumulate power consumption of each line, and to execute black insertion if the accumulated power consumption is determined to be greater than power consumption of one previous display frame by a predetermined value, wherein the luminosity adjustment factor is acquired by substituting the power consumption of one previous frame to a decreasing function, and a display pattern including a plurality of continuing black display lines is synchronized with supply of the image signals and is displayed moving the same direction of a screen scanning direction of the display panel during the black insertion.
    Type: Application
    Filed: July 29, 2015
    Publication date: February 4, 2016
    Applicant: Japan Display Inc.
    Inventors: Takayuki IMAI, Norio NAKAMURA
  • Patent number: 9176616
    Abstract: In one embodiment, a display device having a touch function includes an insulating substrate and a plurality of pixels formed on the insulating substrate and arranged in a matrix of rows and columns. The pixels form a plurality of pixel blocks formed of a plurality of rows and columns of the pixels. A sensor circuit is arranged in a space between adjacent pixels on the insulating substrate and includes a coupling electrode, a detection electrode arranged adjacent to the coupling electrode for forming a coupling capacitance therebetween, and a reading-out circuit to read out a potential of the detection electrode. At least one sensor circuit is arranged in each pixel block. The contact or non-contact by a fingertip or a nib is detected by a potential difference of the detection electrode.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: November 3, 2015
    Assignee: JAPAN DISPLAY, INC.
    Inventors: Takashi Nakamura, Satoru Tomita, Masayoshi Fuchi, Hirotaka Hayashi, Takayuki Imai, Takashi Okada, Takahiko Endo, Miyuki Ishikawa, Masahiro Tada, Yasuo Saruhashi, Keiichi Saito, Hideyuki Takahashi
  • Publication number: 20150138257
    Abstract: According to one embodiment, a display device displays an n?1th frame (n is an integer which is greater than or equal 2) and an nth frame in this order. The display device includes a display panel, calculator, adjuster, and controller. The calculator calculates power consumption of the n?1th frame. The adjuster determines whether or not the nth frame is brighter than the n?1th frame, and adjusts brightness of the nth frame based on a brightness adjustment magnification of the nth frame calculated based on the power consumption of the n?1th frame and a decreasing function, when the nth frame is not brighter than the n?1th frame. The controller stops light emission with an arbitrary timing when the nth frame is displayed, when the nth frame is brighter than the n?1th frame.
    Type: Application
    Filed: November 18, 2014
    Publication date: May 21, 2015
    Applicant: Japan Display Inc.
    Inventors: Takayuki IMAI, Norio NAKAMURA
  • Patent number: 9001075
    Abstract: A display device having a touch panel function includes a plurality of pixel circuits arranged in a matrix shape and sensing circuits arranged in a region between the adjacent pixel circuits for reading out a magnitude of coupling capacitance. A display driver writes a display signal in the pixel circuit every row line by driving the scanning lines and signal lines in a display operation period. A sensing driver senses a signal showing magnitude of the coupling capacitance from the sensing circuit every row line by driving the plurality of scanning lines and signal lines in a sensing operation period. The display operation period and the sensing operation period are repeated in turns. A voltage in a range used for the displaying operation is written into the signal line in a preliminary writing operation period between after the sensing operation period and before the display operation period.
    Type: Grant
    Filed: October 15, 2012
    Date of Patent: April 7, 2015
    Assignee: Japan Display Inc.
    Inventors: Takayuki Imai, Hideyuki Takahashi, Hirofumi Kato, Jun Hanari, Atsunori Ooyama
  • Patent number: 8936450
    Abstract: A roots type fluid machine includes a case having a side wall, a pair of rotary shafts provided in the case, a pair of rotors engaged with each other and fixed to the pair of rotary shafts so as to extend axially, respectively, a suction space formed by the case and the pair of rotors for introducing fluid, a discharge space formed by the case for discharging fluid and the pair of rotors and a transfer chamber formed by the case and the rotor. The rotor has a rotor end surface. A clearance is formed between the side wall and the rotor end surface. The transfer chamber transfers gas introduced in the suction space to the discharge space in accordance with the rotation of the pair of rotors. The case has a guide groove formed in the side wall facing the rotor end surface. Gas leaked from the discharge space into the clearance is introduced to the transfer chamber through the guide groove.
    Type: Grant
    Filed: July 12, 2011
    Date of Patent: January 20, 2015
    Assignee: Kabushiki Kaisha Toyota Jidoshokki
    Inventors: Yuya Izawa, Shinya Yamamoto, Takashi Ban, Takayuki Imai, Katsumi Yamashita, Yasunaka Hanaoka
  • Patent number: 8872793
    Abstract: According to one embodiment, a sensor module includes a first sensor circuit, a second sensor circuit and a differential circuit. The first sensor circuit includes a first detection electrode, a first amplifier formed of a thin-film transistor and a first coupling capacitor. The second sensor circuit includes a second detection electrode, a second amplifier formed of a thin-film transistor and a second coupling capacitor. The differential circuit is connected to the drain electrode of the first amplifier and the drain electrode of the second amplifier.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: October 28, 2014
    Assignee: Japan Display Inc.
    Inventors: Masahiro Tada, Takashi Nakamura, Hirotaka Hayashi, Masayoshi Fuchi, Takahiko Endo, Miyuki Ishikawa, Takashi Okada, Takayuki Imai, Satoru Tomita, Yasuo Saruhashi
  • Publication number: 20140312924
    Abstract: A handler includes: a rotating section which is a holding unit mounting section which can take a mounted state in which a holding unit for holding an IC device is mounted; and a transportation mechanism which transports the IC device held by the holding unit. The rotating section includes a heat generation section which generates heat and a heating flow path through which fluid which is heated by the heat generation section and is used for heating of the IC device passes.
    Type: Application
    Filed: March 7, 2014
    Publication date: October 23, 2014
    Applicant: Seiko Epson Corporation
    Inventors: Takayuki Imai, Haruhiko Miyamoto, Fuyumi Takata, Toshioki Shimojima
  • Publication number: 20130162590
    Abstract: A display device having a touch panel function includes a plurality of pixel circuits arranged in a matrix shape and sensing circuits arranged in a region between the adjacent pixel circuits for reading out a magnitude of coupling capacitance. A display driver writes a display signal in the pixel circuit every row line by driving the scanning lines and signal lines in a display operation period. A sensing driver senses a signal showing magnitude of the coupling capacitance from the sensing circuit every row line by driving the plurality of scanning lines and signal lines in a sensing operation period. The display operation period and the sensing operation period are repeated in turns. A voltage in a range used for the displaying operation is written into the signal line in a preliminary writing operation period between after the sensing operation period and before the display operation period.
    Type: Application
    Filed: October 15, 2012
    Publication date: June 27, 2013
    Inventors: Takayuki Imai, Hideyuki Takahashi, Hirofumi Kato, Jun Hanari, Atsunori Ooyama