Patents by Inventor Yoshio Umeda
Yoshio Umeda 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: 9649723Abstract: A processing apparatus including a chuck table having a holding surface for rotatably holding a workpiece, a laser beam applying mechanism having a laser beam generating unit for generating a laser beam and focusing the laser beam to the inside of the workpiece held on the chuck table, a relatively moving unit for relatively moving the chuck table and the laser beam applying mechanism in a direction parallel to the holding surface of the chuck table while applying the laser beam to the workpiece to thereby form a modified layer inside of the workpiece, a separating unit for separating a part of the workpiece along the modified layer as a boundary formed inside the workpiece, and a grinding/polishing unit having a grinding/polishing wheel for grinding or polishing the modified layer left on the workpiece after separating the part and a spindle for rotatably mounting the grinding/polishing wheel.Type: GrantFiled: July 28, 2014Date of Patent: May 16, 2017Assignee: Disco CorporationInventors: Yoshio Umeda, Satoshi Kobayashi, Yasuyoshi Yubira
-
Patent number: 9588424Abstract: A photosensitive resin composition is prepared by dispersing at least one of a hydrophobic polymer and a mixture of an oil-soluble photopolymerization initiator and a water-insoluble or sparingly water-soluble compound having at least one photoactive, ethylenically unsaturated group in an aqueous solution that contains both a water-soluble polymer and a diazo resin is obtained by condensing a water-soluble salt of an optionally substituted 4-diazodiphenylamine with formaldehyde in the presence of sulfuric acid and phosphoric acid. This photosensitive resin composition gives a photosensitive film having excellent stability over time and a wide exposure latitude. By adding a specific fluorine compound to the photosensitive resin composition, a screen plate has an excellent discharge performance.Type: GrantFiled: September 25, 2012Date of Patent: March 7, 2017Assignee: SUNTYPE CO., LTD.Inventors: Yoshio Umeda, Kenji Ota, Yuichi Ono, Taichi Okada, Yukina Kuwahara, Takafumi Somei, Setsuka Nakajima, Masataka Miyazaki, Toru Mori, Suguru Komatsu, Michihiro Iljima
-
Patent number: 9472145Abstract: The present application discloses a liquid crystal display device for displaying a video on a display surface with pixels arranged in a matrix. Each of the pixels has three sub-pixels formed with different color filter portions in hue. The display surface includes pixel sets. Each of the pixel sets is defined to include two or three of the pixels next to each other in at least one of the vertical and horizontal directions. An opening is formed on one of the color filter portions every hue in each of the pixel sets.Type: GrantFiled: August 13, 2015Date of Patent: October 18, 2016Assignee: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.Inventors: Takahiro Kobayashi, Yoshio Umeda
-
Patent number: 9426456Abstract: A display device includes: a liquid crystal panel which has a display surface including pixels, and displays frame images; a generation portion which generates a first and a second image signals based on a frame image signal, the first image signal rendering an image of a lower resolution than the frame image signal and including data to be written to all the pixels, the second image signal including data to be written to a part of the pixels and not including data to be written to remaining pixels other than the part of the pixels; and a liquid crystal driver which executes, after executing a first scanning operation, a second scanning operation in which scanning based on the second image signal is executed, to drive the liquid crystal panel, wherein data that has been written to the remaining pixels is held in the second scanning operation.Type: GrantFiled: June 26, 2013Date of Patent: August 23, 2016Assignee: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.Inventors: Takahiro Kobayashi, Yoshio Umeda
-
Patent number: 9390662Abstract: A liquid crystal display device includes: a liquid crystal display unit that displays, for each of frames, an image based on an input image signal; a drive unit that applies a voltage based on the input image signal to pixels of the liquid crystal display unit; and a control unit that controls an amplitude of the voltage applied to the pixels. The drive unit applies, in one of the frames, a voltage of the same polarity to the pixels connected to one of the source signal lines. The control unit includes: a temperature-information acquiring unit that acquires temperature information of the drive unit; and a filter unit that acquires high-frequency and low-frequency components of the input image signal in a substantial extending direction of the source signal lines. The control unit controls the amplitude of the applied voltage using the temperature information and an output value of the high-frequency component.Type: GrantFiled: December 21, 2012Date of Patent: July 12, 2016Assignee: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.Inventors: Takahiro Kobayashi, Yoshio Umeda, Hideki Abe, Takayuki Tajiri, Yoshihisa Ooishi, Shinji Yasukawa
-
Patent number: 9210752Abstract: A backlight device, used in a liquid crystal display device, comprising: a substrate including first and second areas; a plurality of first light emitting diodes (LEDs) arranged in the first area at a density equal to or higher than a predetermined density; a plurality of second LEDs arranged in the second area at a density lower than the predetermined density; and a control unit configured to control current supplied to the first LEDs with respect to the temperature of the first area, and current supplied to the second LEDs with respect to the temperature of the second area so as to make the rate of change in effective value of the current supplied to the first LEDs different from the rate of change in effective value of the current supplied to the second LEDs when temperatures of the first and second areas are higher than a predetermined temperature.Type: GrantFiled: January 19, 2012Date of Patent: December 8, 2015Assignee: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.Inventors: Takahiro Kobayashi, Yoshio Umeda
-
Publication number: 20150348478Abstract: The present application discloses a liquid crystal display device for displaying a video on a display surface with pixels arranged in a matrix. Each of the pixels has three sub-pixels formed with different color filter portions in hue. The display surface includes pixel sets. Each of the pixel sets is defined to include two or three of the pixels next to each other in at least one of the vertical and horizontal directions. An opening is formed on one of the color filter portions every hue in each of the pixel sets.Type: ApplicationFiled: August 13, 2015Publication date: December 3, 2015Inventors: Takahiro KOBAYASHI, Yoshio UMEDA
-
Patent number: 9201246Abstract: A controller for controlling an eyeglass device which performs an assistance operation for assisting in stereoscopically viewing a video includes: a first acquisition portion for acquiring first frequency information relating to a display frequency of frame images of the video; a second acquisition portion for acquiring second frequency information relating to an environmental factor which periodically varies in an environment where the video is viewed; and a generator for generating a reference signal to adapt the assistance operation of the eyeglass device to display of the frame image and periodic variation of the environmental factor on the basis of the first frequency information and the second frequency information.Type: GrantFiled: September 20, 2011Date of Patent: December 1, 2015Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Kazuhiro Mihara, Yoshio Umeda, Seiji Nakazawa
-
Patent number: 9142170Abstract: The present application discloses a liquid crystal display device for displaying a video on a display surface with pixels arranged in a matrix. Each of the pixels has three sub-pixels formed with different color filter portions in hue. The display surface includes pixel sets. Each of the pixel sets is defined to include two or three of the pixels next to each other in at least one of the vertical and horizontal directions. An opening is formed on one of the color filter portions every hue in each of the pixel sets.Type: GrantFiled: December 28, 2012Date of Patent: September 22, 2015Assignee: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.Inventors: Takahiro Kobayashi, Yoshio Umeda
-
Publication number: 20150212413Abstract: A photosenstive resin composition is prepared by dispersing at least one of a hydrophobic polymer and a mixture of an oil-soluble photopolymerization initiator and a water-insoluble or sparingly water-soluble compound having at least one photoactive, ethylenically unsaturated group in an aqueous solution that contains both a water-soluble polymer and a diazo resin is obtained by condensing a water-soluble salt of an optionally substituted 4-diazodiphenylamine with formaldehyde in the presence of sulfuric acid and phosphoric acid. This photosensitive resin composition gives a photosensitive film having excellent stability over time and a wide exposure latitude. By adding a specific fluorine compound to the photosensitive resin composition, a screen plate has an excellent discharge performance.Type: ApplicationFiled: September 25, 2012Publication date: July 30, 2015Inventors: Yoshio Umeda, Kenji Ota, Yuichi Ono, Taichi Okada, Yukina Kuwahara, Takafumi Somei, Setsuka Nakajima, Masataka Miyazaki, Toru Mori, Suguru Komatsu, Michihiro Iijima
-
Patent number: 9024923Abstract: The liquid crystal display panel includes a liquid crystal display unit, and a backlight unit illuminating the liquid crystal display unit. The backlight unit includes first and second white light-emitting diodes that respectively emit white light, and first and second drive units that respectively supply a current to the first and second white light-emitting diodes. The first and second drive units are respectively configured to be able to adjust supply current to the first and second white light-emitting diodes. Chromaticities of the first and second white light-emitting diodes are of a relationship of being positioned opposite each other across a blackbody locus on an xy chromaticity diagram. The first and second white light-emitting diodes change over time so that, on the xy chromaticity diagram, an intersection point of the blackbody locus and a line that passes through the chromaticities of the first and second white light-emitting diodes becomes constant.Type: GrantFiled: December 14, 2012Date of Patent: May 5, 2015Assignees: Panasonic Liquid Crystal Display Co., Ltd., Panasonic CorporationInventors: Takahiro Kobayashi, Yoshio Umeda, Katuji Tanaka
-
Patent number: 9019325Abstract: A liquid crystal display device includes: a liquid crystal display unit including pixels and displaying an image based on an input image signal; a drive unit that applies a voltage based on the input image signal to the pixels while inverting a polarity of the voltage for each of frames; a luminance determination unit that determines whether a detected average luminance has changed, between the frames, by an amount equal to or more than a reference luminance; and a signal generation unit that generates a phase inversion enabling signal for inverting a phase of the polarity of the voltage applied to the pixels, in a case where the luminance determination unit determines that the average luminance has changed by the above amount, wherein the drive unit inverts the phase of the polarity of the voltage applied to the pixels when the phase inversion enabling signal is generated.Type: GrantFiled: December 20, 2012Date of Patent: April 28, 2015Assignee: Panasonic Liquid Crystal Display Co., Ltd.Inventors: Takahiro Kobayashi, Yoshio Umeda
-
Publication number: 20150038062Abstract: A processing apparatus including a chuck table having a holding surface for rotatably holding a workpiece, a laser beam applying mechanism having a laser beam generating unit for generating a laser beam and focusing the laser beam to the inside of the workpiece held on the chuck table, a relatively moving unit for relatively moving the chuck table and the laser beam applying mechanism in a direction parallel to the holding surface of the chuck table while applying the laser beam to the workpiece to thereby form a modified layer inside of the workpiece, a separating unit for separating a part of the workpiece along the modified layer as a boundary formed inside the workpiece, and a grinding/polishing unit having a grinding/polishing wheel for grinding or polishing the modified layer left on the workpiece after separating the part and a spindle for rotatably mounting the grinding/polishing wheel.Type: ApplicationFiled: July 28, 2014Publication date: February 5, 2015Inventors: Yoshio Umeda, Satoshi Kobayashi, Yasuyoshi Yubira
-
Patent number: 8917222Abstract: A display device includes: a liquid crystal panel including a display surface on which frame images are displayed; a conversion portion for converting a frame image signal into a first image signal representing an image having a lower resolution and a second image signal representing an image having a higher resolution; and a liquid crystal driver for driving the liquid crystal panel with performing first and second scanning operations of the first and second image signals over pixels of the entire display surface. The liquid crystal driver performs the second scanning operation with targeting a drive luminance value which is set in response to an expected value of an achieved luminance value during the first scanning operation for the pixel of the display surface before the second scanning operation commences, and target luminance value for the pixels defined by the frame image signal.Type: GrantFiled: December 23, 2011Date of Patent: December 23, 2014Assignee: Panasonic Liquid Crystal Display Co., Ltd.Inventors: Takahiro Kobayashi, Yoshio Umeda
-
Patent number: 8917296Abstract: A luminous intensity distribution system includes a first optical element extending in a first direction, and distributes, given that a first direction is taken to be leftward-rightward when viewed frontward-rearward, light having entered a light-incident surface from a right-rear direction and emits the light through a light-emitting surface toward a right-forward direction when viewed from the frontward end, and distributes light having entered the light-incident surface from a left-rear direction and emits the light through the light-emitting surface toward a left-forward direction when viewed from the frontward end; and a second optical element extending in the first direction and that diffuses light having entered the light-incident surface and emits the light through the light-emitting side, with the first optical element and the second optical element being arranged in parallel with each other vertically when viewed frontward-rearward.Type: GrantFiled: May 23, 2012Date of Patent: December 23, 2014Assignee: Panasonic CorporationInventors: Kouki Ichihashi, Takahiro Kobayashi, Yoshio Umeda, Masahiro Kasano
-
Patent number: 8866395Abstract: The instant application describes a display apparatus that includes a display panel configured to display an image; and a backlight unit configured to illuminate the display panel from a back of the display panel. The backlight unit includes: N light-emitting diode strings connected in parallel with each other, each of the N light-emitting diode strings includes M light-emitting diodes connected in series, N being an integer of 2 or more and M being an integer of 1 or more; a power source unit connected in series with the N light-emitting diode strings and configured to generate a voltage; a drive unit connected in series with the N light-emitting diode strings and the power source unit and configured to supply currents to the N light-emitting diode strings; and a current regulator configured to regulate current flowing in each of the N light-emitting diode strings.Type: GrantFiled: August 28, 2012Date of Patent: October 21, 2014Assignee: Panasonic Liquid Crystal Display Co., Ltd.Inventors: Akihiro Yamamura, Isao Matsuda, Yoshio Umeda
-
Patent number: 8581941Abstract: Provided is a backlight device wherein when the drive duty and the drive current are controlled according to a motion, the image quality is improved by preventing flicker caused by the change of the drive waveform. A light-emitting unit (121) comprises a plurality of light-emitting areas. A motion amount detecting unit (131) detects the motion amount of an image in each of a plurality of motion areas each corresponding to at least one or more light-emitting areas. A drive condition specifying unit specifies a drive condition including the duty and pulse height value of a drive pulse for causing each of the plurality of light-emitting areas to emit light, on the basis of the detected motion amount. A drive unit drives each of the plurality of light-emitting areas according to the specified drive condition. The drive condition specifying unit adjusts the drive condition such that the drive condition temporally smoothly changes.Type: GrantFiled: September 29, 2010Date of Patent: November 12, 2013Assignee: Panasonic CorporationInventors: Toshiki Onishi, Hideyuki Nakanishi, Takahiro Kobayashi, Yoshio Umeda, Akihiro Yamamura, Seiji Hamada
-
Publication number: 20130286167Abstract: A display device includes: a liquid crystal panel which has a display surface including pixels, and displays frame images; a generation portion which generates a first and a second image signals based on a frame image signal, the first image signal rendering an image of a lower resolution than the frame image signal and including data to be written to all the pixels, the second image signal including data to be written to a part of the pixels and not including data to be written to remaining pixels other than the part of the pixels; and a liquid crystal driver which executes, after executing a first scanning operation, a second scanning operation in which scanning based on the second image signal is executed, to drive the liquid crystal panel, wherein data that has been written to the remaining pixels is held in the second scanning operation.Type: ApplicationFiled: June 26, 2013Publication date: October 31, 2013Inventors: Takahiro KOBAYASHI, Yoshio UMEDA
-
Patent number: 8466869Abstract: A display apparatus including: a liquid crystal panel for displaying left and right images; a liquid crystal driver for writing an image signal into the liquid crystal panel; a backlight source for radiating light to the liquid crystal panel; and a controller for controlling the backlight source so that it emits the light during first emission periods which are set for a left viewing periods while a left image is viewed with a left eye and right viewing periods while a right image is viewed with a right eye, respectively, wherein the controller controls the backlight source so that it emits the light during a second emission period within a non-viewing period, during which no image is viewed, and sets a turn-off period during which the backlight source is turned off between the first and second emission periods.Type: GrantFiled: December 8, 2011Date of Patent: June 18, 2013Assignee: Panasonic CorporationInventors: Takahiro Kobayashi, Yoshio Umeda, Seiji Hamada, Tatsuya Ina
-
Publication number: 20130049616Abstract: The instant application describes a display apparatus that includes a display panel configured to display an image; and a backlight unit configured to illuminate the display panel from a back of the display panel. The backlight unit includes: N light-emitting diode strings connected in parallel with each other, each of the N light-emitting diode strings includes M light-emitting diodes connected in series, N being an integer of 2 or more and M being an integer of 1 or more; a power source unit connected in series with the N light-emitting diode strings and configured to generate a voltage; a drive unit connected in series with the N light-emitting diode strings and the power source unit and configured to supply currents to the N light-emitting diode strings; and a current regulator configured to regulate current flowing in each of the N light-emitting diode strings.Type: ApplicationFiled: August 28, 2012Publication date: February 28, 2013Inventors: Akihiro YAMAMURA, Isao Matsuda, Yoshio Umeda