Patents by Inventor Kenichi Tajiri

Kenichi Tajiri 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: 10339879
    Abstract: An image processing apparatus includes a corrector and a determinator. The corrector corrects a correspondence between display pixels of a display unit and data pixels on an image signal to be inputted to the display pixels so that at least one of the display pixels is defined as a mask pixel to which the image signal is no longer inputted. The determinator determines a gradation of the mask pixel in accordance with a gradation indicated by the image signal to be inputted to an edge pixel that is included in the display pixels and located at an edge of the display pixels.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: July 2, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Chiyoaki Iijima, Kenichi Tajiri, Toshiaki Tokumura, Yusuke Ogasawara
  • Patent number: 9970366
    Abstract: A control apparatus using a feedback control algorithm including an integral term, which is capable of controlling a controlled object having a response lag characteristic while suppressing influences of aging and sudden changes in an operating state, and thereby improving control accuracy. The control apparatus that controls a supercharger includes an ECU. The ECU calculates a reference FB target pressure using a first-order lag equation, an allowable upper limit value based on a value obtained by adding a predetermined allowable range value to the reference FB target pressure, an FB target pressure such that an actual boost pressure does not exceed the allowable upper limit value, and a feedback correction term using a PI control algorithm such that the actual boost pressure becomes equal to the FB target pressure, and controls the actual boost pressure using a driver demand boost pressure and the feedback correction term.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: May 15, 2018
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Yuji Yasui, Toru Satake, Kenichi Tajiri
  • Publication number: 20170294168
    Abstract: An image processing apparatus includes a corrector and a determinator. The corrector corrects a correspondence between display pixels of a display unit and data pixels on an image signal to be inputted to the display pixels so that at least one of the display pixels is defined as a mask pixel to which the image signal is no longer inputted. The determinator determines a gradation of the mask pixel in accordance with a gradation indicated by the image signal to be inputted to an edge pixel that is included in the display pixels and located at an edge of the display pixels.
    Type: Application
    Filed: March 30, 2017
    Publication date: October 12, 2017
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Chiyoaki IIJIMA, Kenichi TAJIRI, Toshiaki TOKUMURA, Yusuke OGASAWARA
  • Patent number: 9159267
    Abstract: Disclosed herein is a liquid crystal display device having first and second substrates disposed to face each other so as to hold a liquid crystal layer therebetween, and a gate potential creating circuit for outputting a selection potential and a non-selection potential, scanning lines, signal lines, thin film transistors formed so as to correspond to intersection portions between the scanning lines and the signal lines, respectively, pixel electrodes electrically connected to the thin film transistors, respectively, and a gate control circuit for switching the selection potential and the non-selection potential supplied from the gate potential creating circuit over to each other, thereby supplying one of the selection potential and the non-selection potential to corresponding ones of the thin film transistors through corresponding one of the scanning lines being formed on the first substrate, and a common electrode being formed either on the first substrate or the second substrate.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: October 13, 2015
    Assignee: Japan Display Inc.
    Inventors: Kenichi Tajiri, Yutaka Kobashi, Hiroshi Kiya, Nobuhiko Yokoo
  • Publication number: 20150275791
    Abstract: A control apparatus using a feedback control algorithm including an integral term, which is capable of controlling a controlled object having a response lag characteristic while suppressing influences of aging and sudden changes in an operating state, and thereby improving control accuracy. The control apparatus that controls a supercharger includes an ECU. The ECU calculates a reference FB target pressure using a first-order lag equation, an allowable upper limit value based on a value obtained by adding a predetermined allowable range value to the reference FB target pressure, an FB target pressure such that an actual boost pressure does not exceed the allowable upper limit value, and a feedback correction term using a PI control algorithm such that the actual boost pressure becomes equal to the FB target pressure, and controls the actual boost pressure using a driver demand boost pressure and the feedback correction term.
    Type: Application
    Filed: March 24, 2015
    Publication date: October 1, 2015
    Inventors: Yuji YASUI, Toru SATAKE, Kenichi TAJIRI
  • Patent number: 8723773
    Abstract: In accordance with an embodiment of the invention, a control unit of the electro-optical device performs black data insertion processing for all the pixels in a vertical retrace period and each of the pixels includes a first subpixel and at least one second subpixel. Accordingly, blur of a motion picture is suppressed (a motion picture is improved in visual quality) by the black data insertion processing while using the minimum number of switching devices in the pixel unit.
    Type: Grant
    Filed: September 12, 2007
    Date of Patent: May 13, 2014
    Assignee: Japan Display West Inc.
    Inventor: Kenichi Tajiri
  • Publication number: 20140092074
    Abstract: Disclosed herein is a liquid crystal display device having first and second substrates disposed to face each other so as to hold a liquid crystal layer therebetween, and a gate potential creating circuit for outputting a selection potential and a non-selection potential, scanning lines, signal lines, thin film transistors formed so as to correspond to intersection portions between the scanning lines and the signal lines, respectively, pixel electrodes electrically connected to the thin film transistors, respectively, and a gate control circuit for switching the selection potential and the non-selection potential supplied from the gate potential creating circuit over to each other, thereby supplying one of the selection potential and the non-selection potential to corresponding ones of the thin film transistors through corresponding one of the scanning lines being formed on the first substrate, and a common electrode being formed either on the first substrate or the second substrate.
    Type: Application
    Filed: December 4, 2013
    Publication date: April 3, 2014
    Inventors: Kenichi Tajiri, Yutaka Kobashi, Hiroshi Kiya, Nobuhiko Yokoo
  • Patent number: 8625039
    Abstract: Disclosed herein is a liquid crystal display device having first and second substrates disposed to face each other so as to hold a liquid crystal layer therebetween, and a gate potential creating circuit for outputting a selection potential and a non-selection potential, scanning lines, signal lines, thin film transistors formed so as to correspond to intersection portions between the scanning lines and the signal lines, respectively, pixel electrodes electrically connected to the thin film transistors, respectively, and a gate control circuit for switching the selection potential and the non-selection potential supplied from the gate potential creating circuit over to each other, thereby supplying one of the selection potential and the non-selection potential to corresponding ones of the thin film transistors through corresponding one of the scanning lines being formed on the first substrate, and a common electrode being formed either on the first substrate or the second substrate.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: January 7, 2014
    Assignee: Japan Display West Inc.
    Inventors: Kenichi Tajiri, Yutaka Kobashi, Hiroshi Kiya, Nobuhiko Yokoo
  • Patent number: 8184082
    Abstract: A liquid crystal display selectively operates in one of a full screen display mode, in which the full screen of the display panel is set as a display area, and a partial display mode, in which a partial area in the full screen is set as a display area and a remaining area is set as a non-display area.
    Type: Grant
    Filed: January 9, 2009
    Date of Patent: May 22, 2012
    Assignee: Epson Imaging Devices Corporation
    Inventor: Kenichi Tajiri
  • Patent number: 8159480
    Abstract: An electro-optical device includes a plurality of scanning lines and a plurality of data lines, pixels arranged so as to correspond to intersections of the plurality of scanning lines and the plurality of data lines, and an electro-optical material in which a response speed at a time of halftone display is lower than those at a time of low-gray-scale-level display and at a time of high-gray-scale-level display. Each of the pixels includes at least two adjacent subpixels as a group. Each of the subpixels includes a pixel electrode, a common electrode arranged so as to face the pixel electrode, and a switching device which electrically connects a corresponding one of the data lines to the pixel electrode in accordance with a selection voltage supplied from a corresponding one of the scanning lines. The switching device is connected to the corresponding one of the scanning lines.
    Type: Grant
    Filed: August 9, 2007
    Date of Patent: April 17, 2012
    Assignee: Sony Corporation
    Inventor: Kenichi Tajiri
  • Patent number: 7978297
    Abstract: An electro-optical device includes: a substrate; a plurality of wiring lines which is formed on the substrate; and an IC which is mounted on the substrate so as to be electrically connected to the plurality of wiring lines. At least a pair of wiring lines among the plurality of wiring lines include a first conductive layer formed on the substrate and a second conductive layer formed on at least the first conductive layer. The first conductive layer and the second conductive layer have different resistance values. The first conductive layer of one of the pair of wiring lines has a plurality of first resistors each extending toward the other wiring line, and the second conductive layer of the other wiring line has a second resistor extending toward the one wiring line. The plurality of first resistors is connected to the second resistor.
    Type: Grant
    Filed: April 17, 2008
    Date of Patent: July 12, 2011
    Assignee: Sony Corporation
    Inventors: Fusashi Kimura, Shinichi Kobayashi, Yuki Okuhara, Kenichi Tajiri
  • Publication number: 20110075063
    Abstract: Disclosed herein is a liquid crystal display device having first and second substrates disposed to face each other so as to hold a liquid crystal layer therebetween, and a gate potential creating circuit for outputting a selection potential and a non-selection potential, scanning lines, signal lines, thin film transistors formed so as to correspond to intersection portions between the scanning lines and the signal lines, respectively, pixel electrodes electrically connected to the thin film transistors, respectively, and a gate control circuit for switching the selection potential and the non-selection potential supplied from the gate potential creating circuit over to each other, thereby supplying one of the selection potential and the non-selection potential to corresponding ones of the thin film transistors through corresponding one of the scanning lines being formed on the first substrate, and a common electrode being formed either on the first substrate or the second substrate.
    Type: Application
    Filed: September 17, 2010
    Publication date: March 31, 2011
    Applicant: SONY CORPORATION
    Inventors: Kenichi Tajiri, Yutaka Kobashi, Hiroshi Kiya, Nobuhiko Yokoo
  • Patent number: 7889412
    Abstract: An electrooptical apparatus includes a display unit that emits display light, a light emission stopping unit that stops emission of the display light in the display unit, a light receiving unit that receives outside light around the display unit while emission of the display light is stopped, an accumulating unit that accumulates the amount of outside light received by the light receiving unit, and a calculating unit that calculates the light intensity of outside light on the basis of the time taken for the accumulated amount of outside light received to exceed a predetermined threshold.
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: February 15, 2011
    Assignee: Sony Corporation
    Inventors: Masatoshi Futatsuya, Kenichi Tajiri, Yutaka Ozawa
  • Patent number: 7864253
    Abstract: An image display includes the following components. A display panel has a plurality of pixels arrayed in a first direction and a second direction intersecting the first direction. A light source emits light toward the display panel. A polarization-axis control unit separates the light emitted from the light source into light having a first polarization axis and light having a second polarization axis. An optical element allows the light emitted from the light source to travel in a direction substantially orthogonal to the first direction. The polarization-axis control unit includes a first substrate, a second substrate, a liquid crystal layer sandwiched between the first and second substrates, a first electrode, a second electrode, and a third electrode. The third electrode is superposed over the first electrode and the second electrode in a region corresponding to a pixel array area of the display panel.
    Type: Grant
    Filed: January 5, 2007
    Date of Patent: January 4, 2011
    Assignee: Sony Corporation
    Inventor: Kenichi Tajiri
  • Patent number: 7724222
    Abstract: An image display device includes: pixels in first and second directions; a polarization controller providing first and second polarization axis light; and a controller. The polarization controller includes first electrodes extending in the first direction on a first substrate with a predetermined interval in the second direction, and second electrodes extending in the first direction on a second substrate with an interval in the second direction twice the predetermined interval. The controller switches display between dual-screen and three-dimensional modes. In the dual-screen mode, the controller applies voltages to the second electrodes so adjacent electrodes have opposite phases, and applies the same phase voltage as one of the second electrode voltages to the first electrodes. In the three-dimensional mode, the controller applies voltages to the first electrodes so adjacent electrodes have opposite phases, and applies the same phase voltage as one of the first electrode voltages to the second electrodes.
    Type: Grant
    Filed: November 20, 2006
    Date of Patent: May 25, 2010
    Assignee: Epson Imaging Devices Corporation
    Inventors: Kenichi Tajiri, Chiyoaki Iijima
  • Patent number: 7714411
    Abstract: An electro-optical device includes: a substrate; a plurality of wiring lines which is formed on the substrate; and an IC which is mounted on the substrate so as to be electrically connected to the plurality of wiring lines. At least a pair of wiring lines among the plurality of wiring lines include a first conductive layer formed on the substrate and a second conductive layer formed on at least the first conductive layer. The first conductive layer and the second conductive layer have different resistance values. The first conductive layer of one of the pair of wiring lines has a plurality of first resistors each extending toward the other wiring line, and the second conductive layer of the other wiring line has a second resistor extending toward the one wiring line. The plurality of first resistors is connected to the second resistor.
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: May 11, 2010
    Assignee: Epson Imaging Devices Corporation
    Inventors: Fusashi Kimura, Shinichi Kobayashi, Yuki Okuhara, Kenichi Tajiri
  • Publication number: 20090213058
    Abstract: A liquid crystal display selectively operates in one of a full screen display mode, in which the full screen of the display panel is set as a display area, and a partial display mode, in which a partial area in the full screen is set as a display area and a remaining area is set as a non-display area.
    Type: Application
    Filed: January 9, 2009
    Publication date: August 27, 2009
    Applicant: Epson Imaging Devices Corporation
    Inventor: Kenichi TAJIRI
  • Patent number: 7551171
    Abstract: A voltage supply circuit includes a first holding element with a first end and a second end that supplies a voltage held between the first end and the second end to a load, the second end being connected to a ground, and a second holding element with a first end and a second end, the first end of the second holding element being electrically connected to the first end of the first holding element. The voltage supply circuit also includes a charging circuit that charges the second holding element with a voltage higher than the voltage to be supplied to the load in a first mode, and a potential adjusting circuit that shifts a potential at the second end of the second holding element towards a potential at the first end of the first holding element according to the voltage held by the first holding element or the second holding element in a second mode exclusive with respect to the first mode.
    Type: Grant
    Filed: August 25, 2005
    Date of Patent: June 23, 2009
    Inventors: Fusashi Kimura, Satoshi Yatabe, Kenichi Tajiri
  • Publication number: 20090141332
    Abstract: An electrooptical apparatus includes a display unit that emits display light, a light emission stopping unit that stops emission of the display light in the display unit, a light receiving unit that receives outside light around the display unit while emission of the display light is stopped, an accumulating unit that accumulates the amount of outside light received by the light receiving unit, and a calculating unit that calculates the light intensity of outside light on the basis of the time taken for the accumulated amount of outside light received to exceed a predetermined threshold.
    Type: Application
    Filed: October 29, 2008
    Publication date: June 4, 2009
    Applicant: EPSON IMAGING DEVICES CORPORATION
    Inventors: Masatoshi FUTATSUYA, Kenichi TAJIRI, Yutaka OZAWA
  • Publication number: 20090073103
    Abstract: A liquid crystal display device includes: a pixel region including a plurality of pixels; a plurality of storage capacitance lines; a storage capacitor connected between a pixel electrode of each of the pixels and each of the storage capacitance lines; a polarity signal generating circuit that generates a polarity signal, which is repeatedly inverted between a first level and a second level for every frame, in a display region of the pixel region where an image is displayed and that fixes the polarity signal to the first level or the second level in a non-display region where an image is not displayed; a first switching element that switches an electric potential of the storage capacitance line according to the polarity signal generated by the polarity signal generating circuit; and a control circuit that when the display region is changed to the non-display region, makes a control such that a refresh operation of writing a signal corresponding to non-display into the pixel electrode of the pixel correspondin
    Type: Application
    Filed: September 11, 2008
    Publication date: March 19, 2009
    Applicant: EPSON IMAGING DEVICES CORPORATION
    Inventor: Kenichi TAJIRI