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).
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Patent number: 10339879Abstract: 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: GrantFiled: March 30, 2017Date of Patent: July 2, 2019Assignee: SEIKO EPSON CORPORATIONInventors: Chiyoaki Iijima, Kenichi Tajiri, Toshiaki Tokumura, Yusuke Ogasawara
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Patent number: 9970366Abstract: 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: GrantFiled: March 24, 2015Date of Patent: May 15, 2018Assignee: HONDA MOTOR CO., LTD.Inventors: Yuji Yasui, Toru Satake, Kenichi Tajiri
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Publication number: 20170294168Abstract: 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: ApplicationFiled: March 30, 2017Publication date: October 12, 2017Applicant: SEIKO EPSON CORPORATIONInventors: Chiyoaki IIJIMA, Kenichi TAJIRI, Toshiaki TOKUMURA, Yusuke OGASAWARA
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Patent number: 9159267Abstract: 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: GrantFiled: December 4, 2013Date of Patent: October 13, 2015Assignee: Japan Display Inc.Inventors: Kenichi Tajiri, Yutaka Kobashi, Hiroshi Kiya, Nobuhiko Yokoo
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Publication number: 20150275791Abstract: 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: ApplicationFiled: March 24, 2015Publication date: October 1, 2015Inventors: Yuji YASUI, Toru SATAKE, Kenichi TAJIRI
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Patent number: 8723773Abstract: 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: GrantFiled: September 12, 2007Date of Patent: May 13, 2014Assignee: Japan Display West Inc.Inventor: Kenichi Tajiri
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Publication number: 20140092074Abstract: 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: ApplicationFiled: December 4, 2013Publication date: April 3, 2014Inventors: Kenichi Tajiri, Yutaka Kobashi, Hiroshi Kiya, Nobuhiko Yokoo
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Patent number: 8625039Abstract: 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: GrantFiled: September 17, 2010Date of Patent: January 7, 2014Assignee: Japan Display West Inc.Inventors: Kenichi Tajiri, Yutaka Kobashi, Hiroshi Kiya, Nobuhiko Yokoo
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Patent number: 8184082Abstract: 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: GrantFiled: January 9, 2009Date of Patent: May 22, 2012Assignee: Epson Imaging Devices CorporationInventor: Kenichi Tajiri
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Patent number: 8159480Abstract: 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: GrantFiled: August 9, 2007Date of Patent: April 17, 2012Assignee: Sony CorporationInventor: Kenichi Tajiri
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Patent number: 7978297Abstract: 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: GrantFiled: April 17, 2008Date of Patent: July 12, 2011Assignee: Sony CorporationInventors: Fusashi Kimura, Shinichi Kobayashi, Yuki Okuhara, Kenichi Tajiri
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Publication number: 20110075063Abstract: 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: ApplicationFiled: September 17, 2010Publication date: March 31, 2011Applicant: SONY CORPORATIONInventors: Kenichi Tajiri, Yutaka Kobashi, Hiroshi Kiya, Nobuhiko Yokoo
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Patent number: 7889412Abstract: 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: GrantFiled: October 29, 2008Date of Patent: February 15, 2011Assignee: Sony CorporationInventors: Masatoshi Futatsuya, Kenichi Tajiri, Yutaka Ozawa
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Patent number: 7864253Abstract: 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: GrantFiled: January 5, 2007Date of Patent: January 4, 2011Assignee: Sony CorporationInventor: Kenichi Tajiri
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Patent number: 7724222Abstract: 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: GrantFiled: November 20, 2006Date of Patent: May 25, 2010Assignee: Epson Imaging Devices CorporationInventors: Kenichi Tajiri, Chiyoaki Iijima
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Patent number: 7714411Abstract: 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: GrantFiled: May 22, 2006Date of Patent: May 11, 2010Assignee: Epson Imaging Devices CorporationInventors: Fusashi Kimura, Shinichi Kobayashi, Yuki Okuhara, Kenichi Tajiri
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Publication number: 20090213058Abstract: 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: ApplicationFiled: January 9, 2009Publication date: August 27, 2009Applicant: Epson Imaging Devices CorporationInventor: Kenichi TAJIRI
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Patent number: 7551171Abstract: 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: GrantFiled: August 25, 2005Date of Patent: June 23, 2009Inventors: Fusashi Kimura, Satoshi Yatabe, Kenichi Tajiri
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Publication number: 20090141332Abstract: 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: ApplicationFiled: October 29, 2008Publication date: June 4, 2009Applicant: EPSON IMAGING DEVICES CORPORATIONInventors: Masatoshi FUTATSUYA, Kenichi TAJIRI, Yutaka OZAWA
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Publication number: 20090073103Abstract: 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 correspondinType: ApplicationFiled: September 11, 2008Publication date: March 19, 2009Applicant: EPSON IMAGING DEVICES CORPORATIONInventor: Kenichi TAJIRI