Patents by Inventor Akihiko Ito

Akihiko Ito 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: 20130278574
    Abstract: An electro-optical device includes first and second output circuits and first and second data lines. A first pixel column is arranged alongside the first data line and the second data line and the first pixel column includes a first pixel and a second pixel. The first output circuit supplies a first data signal that is supplied to the first pixel through the first data line during a first period. The second output circuit supplies a second data signal that is supplied to the second pixel through the second data line during the first period.
    Type: Application
    Filed: June 18, 2013
    Publication date: October 24, 2013
    Inventor: Akihiko Ito
  • Patent number: 8547304
    Abstract: An electro-optical device includes a pixel column, a first and second data lines, and a first and second output circuits. The pixel column including pixel portions are arranged in a first direction. The first and second data lines extend in the first direction. The first and second output circuits output data voltages to different pixel portions of the pixel column through the first and second data lines, respectively.
    Type: Grant
    Filed: January 9, 2009
    Date of Patent: October 1, 2013
    Assignee: Seiko Epson Corporation
    Inventor: Akihiko Ito
  • Patent number: 8497831
    Abstract: An electro-optical device includes pixel electrodes corresponding to intersections of a plurality of scanning lines and a plurality of data lines and specific to the pixels, a common electrode facing the pixel electrode, and a switching element that establishes conduction between the data line and the pixel electrode when a selection voltage is applied to the scanning line, a control circuit that supplies a high voltage having a predetermined value and a low voltage lower than the high voltage alternately at predetermined intervals to the common electrode; a scanning line driving circuit that selects the plurality of scanning lines in a predetermined order and that applies the selection voltage to each of the selected scanning lines; and a data line driving circuit that supplies a data signal defining the grayscale levels of the pixels to the data lines in a period during which one of the scanning lines is selected and during which the voltage applied to the common electrode is maintained at the high voltage
    Type: Grant
    Filed: September 25, 2006
    Date of Patent: July 30, 2013
    Assignee: Seiko Epson Corporation
    Inventor: Akihiko Ito
  • Publication number: 20130076708
    Abstract: An electro-optical device displays a right-eye image and a left-eye image for each display period. The driving circuit supplies a gradation potential to each of the pixels according to a specific gradation using image data which corresponds to the unit period in each of a plurality of unit periods in each of the display periods, and sequentially selects the scanning lines in a plurality of lines and supplies a gradation potential to each of the signal lines according to a specific gradation of each of the pixels which corresponds to any of the scanning lines out of the plurality of lines in a selected state in a unit period in each of the display periods. A driving control section executes overdrive of each of the pixels in the driving circuit in each of two or more unit periods which include the unit period in each of the display periods.
    Type: Application
    Filed: September 13, 2012
    Publication date: March 28, 2013
    Applicant: Seiko Epson Corporation
    Inventors: Toshiaki Tokumura, Akihiko Ito
  • Publication number: 20130076707
    Abstract: An electro-optical device displays a right-eye image and a left-eye image for each display period. In each of the display periods, a driving circuit executes first synchronization selection driving where a first group where scanning lines are segmented into units of two is sequentially selected and a gradation potential is supplied to each of the signal lines according to a gradation in the odd rows, and executes second synchronization selection driving where a second group which is different to the first group is sequentially selected and a gradation potential is supplied to each of the signal lines according to a gradation in the even rows. A display control circuit which controls the driving circuit so that the gradation potential is supplied to each of the signal lines according to a specific gradation which corresponds to the first scanning lines of a display region.
    Type: Application
    Filed: September 13, 2012
    Publication date: March 28, 2013
    Applicant: Seiko Epson Corporation
    Inventors: Toshiaki Tokumura, Akihiko Ito
  • Publication number: 20130069996
    Abstract: A plurality of pixels are arranged corresponding to interconnection between a plurality of scan lines and a plurality of signal lines. A drive circuit alternately displays a right-eye image and a left-eye image on the plurality of pixels every display period. Specifically, the drive circuit sequentially selects the scan lines and supplies a preparation potential corresponding to given grayscale potential (for example, black grayscale) to each of the pixels corresponding to the scan line in a selection state, during a preparation of each of the display periods, and sequentially selects the scan lines and supplies grayscale potential that is in response to an assigned grayscale of the corresponding pixel to each of the pixels corresponding to the scan line in the selection state, during a drive period that starts before selecting the scan line during the preparation of each of the display periods.
    Type: Application
    Filed: September 12, 2012
    Publication date: March 21, 2013
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Akihiko ITO
  • Publication number: 20130070005
    Abstract: A driving circuit applies a voltage according to an assigned grayscale during each unit period of each display period, in such a manner that the applied voltage to a liquid crystal element during one of the unit periods and the applied voltage to the liquid crystal element during the other of the unit periods are opposite in polarity during each of the display periods, and an overdrive control unit enables the drive circuit to perform overdrive of a compensation grayscale according to a display image during the corresponding display period and to a display image during the immediately preceding display period during each of the first and second unit periods of each of the display periods, during each of the display periods.
    Type: Application
    Filed: September 4, 2012
    Publication date: March 21, 2013
    Applicant: Seiko Epson Corporation
    Inventors: Toshiaki Tokumura, Akihiko Ito
  • Publication number: 20130050301
    Abstract: Each control period includes a right eye display period and a left eye display period. A driving circuit supplies grayscale potential based on a right eye image to each pixel in each of the three unit periods of the right eye display period, and supplies the grayscale potential based on a left eye image to each pixel in each of the three unit periods of the left eye display period. The driving circuit performs overdriving in two unit periods from the beginning of each display period, sets the polarity of a voltage applied to each pixel in the two unit periods from the beginning of each display period reverse in the right eye display period of the control period and in the right eye display period of the control period.
    Type: Application
    Filed: August 23, 2012
    Publication date: February 28, 2013
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Akihiko ITO
  • Publication number: 20130050300
    Abstract: A driving circuit perform first driving in which, in a first write period, a grayscale potential in an odd-numbered row is supplied to the pixels of a first group and, in a second write period, the grayscale potential is supplied to the pixels in an even-numbered row, and can perform second driving in which, in the first write period, the grayscale potential in the even-numbered row is supplied to the pixels of a second group and, in the second write period, the grayscale potential is supplied to the pixels in the odd-numbered row. In a right eye display period, the first driving is performed in a unit period U1 and the second driving is performed in a unit period U2. In a left eye display period, the second driving is performed in the unit period U1 and the first driving is performed in the unit period U2.
    Type: Application
    Filed: August 23, 2012
    Publication date: February 28, 2013
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Akihiko ITO
  • Patent number: 8384656
    Abstract: A driving device for driving an electro-optical device includes an outputting section that divides original image signal into and outputs a number of signal portions. The number corresponds to a number of groups of data lines. An assigning section assigns the signal portions to the data lines of corresponding group. A changing section determines an order that the signal portions are to be supplied to the data lines of the corresponding group and changes the order. A correcting section corrects the signal portions to reduce a difference in brightness in the display area generated by the changed order of the signal portions. A supplying section supplies the corrected signal portions to the data lines in accordance with the changed order.
    Type: Grant
    Filed: November 6, 2008
    Date of Patent: February 26, 2013
    Assignee: Seiko Epson Corporation
    Inventor: Akihiko Ito
  • Publication number: 20130010007
    Abstract: In one unit period of a display period, each first pair of scanning lines is selected and a gray scale potential corresponding to pixels of one scanning line of the first pair of scanning lines is supplied to each signal line. In another unit period, each second pair of scanning lines is selected and a gray scale potential corresponding to pixels of one scanning line of the second pair of scanning lines is supplied to each signal line.
    Type: Application
    Filed: July 3, 2012
    Publication date: January 10, 2013
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Akihiko ITO
  • Publication number: 20130010006
    Abstract: In one unit period of a display period, each pair of two scanning lines is selected and a gray scale potential corresponding to an image signal of pixels of one scanning line of each pair of scanning lines is supplied to each signal line. In another unit period, the other scanning line of each pair of scanning lines is selected and a gray scale potential corresponding to an image signal of the pixels of the other scanning line is supplied to each signal line.
    Type: Application
    Filed: July 3, 2012
    Publication date: January 10, 2013
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Akihiko ITO
  • Patent number: 8325120
    Abstract: An electrooptical apparatus includes a plurality of first electrooptical panels which enable a color image to be displayed by combining output lights from the plurality of first electrooptical panels, a polarization axis correction unit through which the output lights from each of the plurality of first electrooptical panels are transmitted and which makes polarization axes of the transmitted output lights aligned, and a polarization axis switching section which switches a polarization axis of the output light from the polarization axis correction unit to a direction intersecting with the direction of the polarization axis at a predetermined timing.
    Type: Grant
    Filed: June 28, 2010
    Date of Patent: December 4, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Akihiko Ito
  • Patent number: 8317847
    Abstract: A biostimulation apparatus of the present invention includes a laser oscillator for oscillating an ultra short pulsed laser beam and an optical system for focusing the ultra short pulsed laser beam, wherein the ultra short pulsed laser beam is focused by the optical system at a target portion of a living subject to cause the target portion to be irradiated with the laser beam to stimulate an acupuncture point, and wherein the target portion is either the acupuncture point or its periphery.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: November 27, 2012
    Assignees: Japan Science and Technology Agency, National University Corporation Kobe University
    Inventors: Yoichiro Hosokawa, Hiroshi Masuhara, Kazunori Okano, Yutaka Takaoka, Mika Ohta, Akihiko Ito
  • Publication number: 20120287098
    Abstract: An electro-optic device includes an electro-optical panel and a polarization axis conversion unit that emits transmission lights corresponding to a first image or a second image with the polarization axis of the first image intersecting the polarization axis of the second image, by converting the polarization axis of the lights emitted from the electro-optical panel. The electro-optic device further includes a scanning signal supply unit supplying scanning signals through the plurality of scanning lines and an image signal supply unit supplying a first image signal corresponding to a first image to the plurality of pixel sections during a first field period and supplying a second image signal corresponding to a second image to the plurality of pixel sections during a second field period through the plurality of data lines, the first field period and the second field period being divided into a plurality of subfield periods respectively.
    Type: Application
    Filed: July 23, 2012
    Publication date: November 15, 2012
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Akihiko ITO
  • Publication number: 20120215794
    Abstract: Provided are providing an ECG unit which is formed of content information and related information related thereto, and is linked to another ECG unit through the related information, calculating an association-degree score between the pieces of content information based on a degree of association of an attribute between the pieces of content information, collecting a history of operation performed for making a transition from a link-source-ECG unit to a link-destination-ECG unit, as a usage log of the ECG unit, calculating a transition score between the ECG units in a manner that a weight of a larger correction coefficient is assigned to a number of usage logs, as there are more attributes of content information having low degree of association with each other between the link-source-ECG unit and the link-destination-ECG unit, and generating an ECG unit linked to another ECG unit, based on the association-degree score and the transition score.
    Type: Application
    Filed: February 9, 2012
    Publication date: August 23, 2012
    Applicant: SONY CORPORATION
    Inventors: Kazuhiro Fukuda, Tetsuo Maruyama, Akihiko Ito
  • Patent number: 8240593
    Abstract: A paper feeding device that feeds a sheet of a paper roll to a printing device includes two spaced-apart side plates having opposed first notches for rotatably bearing-supporting a first paper roll and opposed second notches for rotatably bearing-supporting a second paper roll that may have a different diameter in an unused state from that of the first paper roll. A near end sensor for detecting the remaining amount of the paper rolls is slidably positioned in a linear groove formed in one of the side plates. The linear groove having a longitudinal axis that passes through a midpoint of a straight line connecting a rotation center of a first paper roll bearing-supported in the first notches and a rotation center of a second paper roll bearing-supported in the second notches. When first and second paper rolls of different sizes are used, if both paper rolls are wound on paper tubes of the same size, the position of the near end sensor need not be changed, which is a great convenience for the user.
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: August 14, 2012
    Assignee: Seiko Instruments Inc.
    Inventor: Akihiko Ito
  • Publication number: 20120176375
    Abstract: A plurality of pixel circuits include liquid crystal elements which are arranged corresponding to each intersection of a plurality of scanning lines and a plurality of signal lines, and display a gradation corresponding to a gradation signal of the signal line at the time of selecting the scanning line. A driving circuit sequentially selects the plurality of scanning lines as a selection unit in a first writing period of a right eye period, supplies a gradation signal corresponding to a specified gradation of a right eye image which corresponds to a specified scanning line in the selection unit to each pixel circuit, and sequentially selects a scanning line other than the specified scanning line, and supplies a gradation signal which corresponds to the specified gradation corresponding to the specified gradation to each pixel circuit, in a second writing period.
    Type: Application
    Filed: January 5, 2012
    Publication date: July 12, 2012
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Akihiko ITO
  • Publication number: 20120112777
    Abstract: An electronic device pushing apparatus includes a pushing unit which has: a plurality of pushers which contact DUTs; and base plate on which the plurality of pushers are provided. A rigidity of the base plate is set to a rigidity which is lower relative to the rigidity of a spacing frame of the HIFIX.
    Type: Application
    Filed: July 14, 2009
    Publication date: May 10, 2012
    Applicant: ADVANTEST CORPORATION
    Inventors: Mitsunori Aizawa, Akihiko Ito, Noboru Masuda
  • Patent number: 8139052
    Abstract: An electro-optical device includes data lines divided into groups of M data lines, where N is a natural number equal to or greater than three. Output lines are arranged in correspondence with the data lines and receive, during a predetermined period, output of a correction voltage having a predetermined voltage level and sequential data voltages for defining gray scale levels of the pixels. A time division circuit simultaneously supplies the correction voltage output to the output line to M data lines of each group of data lines, where M is a natural number equal to or greater than two and equal to or less than “N?1”.
    Type: Grant
    Filed: February 21, 2008
    Date of Patent: March 20, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Akihiko Ito