Patents by Inventor Tetsuro Yamamoto

Tetsuro Yamamoto 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: 20140054575
    Abstract: A display unit with which lowering of long-term reliability of a transistor is decreased is provided. The display unit includes a display section having a plurality of organic EL devices with light emitting color different from each other and a plurality of pixel circuits that are singly provided for every said organic EL device for every pixel. The pixel circuit has a first transistor for writing a video signal, a second transistor for driving the organic EL device based on the video signal written by the first transistor, and a retentive capacity, and out of the first transistor and the second transistor, a third transistor provided correspondingly to a second organic EL device adjacent to a first organic EL device is arranged farther from the first organic EL device than a first retentive capacity provided correspondingly to the second organic EL device out of the retentive capacity.
    Type: Application
    Filed: October 29, 2013
    Publication date: February 27, 2014
    Applicant: Sony Corporation
    Inventors: Takayuki Taneda, Tetsuro Yamamoto, Katsuhide Uchino
  • Patent number: 8659515
    Abstract: A display device is disclosed. The display device includes: a pixel array portion and a driver portion for driving the pixel array portion. The pixel array portion has rows of scanning lines, columns of signal lines, pixels arranged in rows and columns at intersections of the scanning lines and the signal lines, and power lines disposed in a corresponding manner to the rows of the pixels. The driver portion includes a main scanner, a power-supply scanner, and a signal selector. Each of the pixels includes light-emitting devices, a sampling transistor, a driving transistor, a retaining capacitor.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: February 25, 2014
    Assignee: Sony Corporation
    Inventors: Yukihito Iida, Katsuhide Uchino, Tetsuro Yamamoto
  • Publication number: 20140049530
    Abstract: A transistor connected to a power source for driving a light-emitting element driving transistor and a transistor setting to a predetermined voltage a source voltage of the light-emitting element driving transistor are commonly controlled by a control signal that takes one of three levels.
    Type: Application
    Filed: October 28, 2013
    Publication date: February 20, 2014
    Applicant: SONY CORPORATION
    Inventors: Katsuhide Uchino, Tetsuro Yamamoto, Junichi Yamashita
  • Patent number: 8648840
    Abstract: A display apparatus includes: a pixel array section including a row of first and second scanning lines, a column of signal lines, and pixels in a matrix, each of the pixels disposed at an intersection of both of the lines; and a drive section. The drive section performs line progressive scanning on the pixels. The pixel includes a light emitting device, a sampling transistor, a driving transistor, a switching transistor, and a holding capacitor. The sampling transistor samples a video signal on the signal line to hold the signal potential in the holding capacitor, the driving transistor makes the light emitting device conductive to be in a luminous state in accordance with the held signal potential, and the switching transistor becomes ON in accordance with the control signal supplied in advance of the sampling of the video signal to change the light emitting device to a non-luminous state.
    Type: Grant
    Filed: March 11, 2008
    Date of Patent: February 11, 2014
    Assignee: Sony Corporation
    Inventors: Katsuhide Uchino, Tetsuro Yamamoto
  • Publication number: 20140035973
    Abstract: Disclosed herein is a display apparatus, including: a plurality of subpixels disposed adjacent each other and forming one pixel which forms a unit for formation of a color image; the plurality of subpixels including a first subpixel which emits light of the shortest wavelength and a second subpixel disposed adjacent the first subpixel; the second subpixel having a light blocking member disposed between the second subpixel and the first subpixel and having a width greater than a channel length or a channel width of a transistor which forms the second subpixel.
    Type: Application
    Filed: October 16, 2013
    Publication date: February 6, 2014
    Applicant: SONY CORPORATION
    Inventors: Tetsuro Yamamoto, Katsuhide Uchino
  • Publication number: 20140028642
    Abstract: A display unit with which diffraction reflection is able to be decreased is provided. The display unit includes a display section having an organic EL device and a pixel circuit for every pixel. The pixel circuit has a first transistor for writing a video signal and a second transistor for driving the organic EL device based on the video signal written by the first transistor. The second transistor has a gate, a source and a drain. The organic EL device has an anode, an organic layer, and a cathode. An upper face of the source or the drain is formed at least in a region opposed to the anode or the cathode.
    Type: Application
    Filed: October 2, 2013
    Publication date: January 30, 2014
    Applicant: SONY CORPORATION
    Inventors: Takayuki Taneda, Tetsuro Yamamoto, Katsuhide Uchino, Yuki Seo
  • Patent number: 8633875
    Abstract: An electroluminescent display panel has pixel circuits for an active matrix driving system. At least one of the pixel circuits has a thin-film transistor in which a portion of a pattern of a metal wiring material above a channel layer of the thin-film transistor is disposed to shield the channel region of the thin-film transistor.
    Type: Grant
    Filed: June 4, 2013
    Date of Patent: January 21, 2014
    Assignee: Sony Corporation
    Inventors: Junichi Yamashita, Tetsuro Yamamoto, Katsuhide Uchino
  • Publication number: 20130341603
    Abstract: Disclosed herein is a display including an acceptor substrate having thereon a red light-emitting element column, a green light-emitting element column, and a blue light-emitting element column that are arranged along a row direction and are each obtained by arranging rectangular organic light-emitting elements for generating light of one of red, green, and blue along a longitudinal direction of the organic light-emitting elements.
    Type: Application
    Filed: June 5, 2013
    Publication date: December 26, 2013
    Inventors: Keisuke Matsuo, Chiyoko Sato, Kohji Hanawa, Takanori Shibasaki, Tetsuro Yamamoto, Kiwamu Miura
  • Publication number: 20130334477
    Abstract: Contained in a thermoplastic resin (A) are a flame retardant (B) including a reaction product of a specific nitrogen-containing compound (such as triallyl isocyanurate) and a specific phosphorus-containing compound (such as 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide), is insoluble in toluene and contains the phosphorus atoms in 5.0 to 10.0% by weight; and at least one kind of a component (C) selected from the group consisting of a flame-retardant promoter (Cx), an impact modifier (Cy), and a layered compound (Cz).
    Type: Application
    Filed: January 23, 2012
    Publication date: December 19, 2013
    Applicant: KANEKA CORPORATION
    Inventors: Shuji Taketani, Tetsuro Yamamoto
  • Patent number: 8610122
    Abstract: A display unit with which lowering of long-term reliability of a transistor is decreased is provided. The display unit includes a display section having a plurality of organic EL devices with light emitting color different from each other and a plurality of pixel circuits that are singly provided for every said organic EL device for every pixel. The pixel circuit has a first transistor for writing a video signal, a second transistor for driving the organic EL device based on the video signal written by the first transistor, and a retentive capacity, and out of the first transistor and the second transistor, a third transistor provided correspondingly to a second organic EL device adjacent to a first organic EL device is arranged farther from the first organic EL device than a first retentive capacity provided correspondingly to the second organic EL device out of the retentive capacity.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: December 17, 2013
    Assignee: Sony Corporation
    Inventors: Takayuki Taneda, Tetsuro Yamamoto, Katsuhide Uchino
  • Patent number: 8605066
    Abstract: Disclosed herein is a display apparatus, including: pixel circuits disposed in a matrix at positions at which a plurality of signal lines and scanning lines cross each other and each including a light emitting element; a light emission driving section adapted to apply a signal value to each of the pixel circuits; a light detection section having a light sensor; a correction information production section adapted to detect the light detection information outputted to the light detection line and supply information for correction of the signal value corresponding to a result of the detection to the light emission driving section; and an initialization control section adapted to set all nodes of the detection signal outputting circuit to an equal potential within a period in which the light detection section does not carry out the light detection operation.
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: December 10, 2013
    Assignee: Sony Corporation
    Inventors: Tetsuro Yamamoto, Katsuhide Uchino
  • Publication number: 20130321250
    Abstract: A pixel circuit, display device, and method of driving a pixel circuit enabling source-follower output with no deterioration of luminance even with a change of the current-voltage characteristic of the light emitting element along with elapse, enabling a source-follower circuit of n-channel transistors, and able to use an n-channel transistor as an EL drive transistor while using current anode-cathode electrodes, wherein a source of a TFT 111 as a drive transistor is connected to an anode of a light emitting element 114, a drain is connected to a power source potential VCC, a capacitor C111 is connected between a gate and source of the TFT 111, and a source potential of the TFT 111 is connected to a fixed potential through a TFT 113 as a switching transistor.
    Type: Application
    Filed: August 6, 2013
    Publication date: December 5, 2013
    Applicant: SONY CORPORATION
    Inventors: Katsuhide UCHINO, Junichi YAMASHITA, Tetsuro YAMAMOTO
  • Publication number: 20130321383
    Abstract: A pixel circuit, display device, and method of driving a pixel circuit enabling source-follower output with no deterioration of luminance even with a change of the current-voltage characteristic of the light emitting element along with elapse, enabling a source-follower circuit of n-channel transistors, and able to use an n-channel transistor as an EL drive transistor while using current anode-cathode electrodes, wherein a source of a TFT 111 as a drive transistor is connected to an anode of a light emitting element 114, a drain is connected to a power source potential VCC, a capacitor C111 is connected between a gate and source of the TFT 111, and a source potential of the TFT 111 is connected to a fixed potential through a TFT 113 as a switching transistor.
    Type: Application
    Filed: August 6, 2013
    Publication date: December 5, 2013
    Applicant: Sony Corporation
    Inventors: Katsuhide UCHINO, Junichi Yamashita, Tetsuro Yamamoto
  • Patent number: 8599178
    Abstract: A transistor connected to a power source for driving a light-emitting element driving transistor and a transistor setting to a predetermined voltage a source voltage of the light-emitting element driving transistor are commonly controlled by a control signal that takes one of three levels.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: December 3, 2013
    Assignee: Sony Corporation
    Inventors: Katsuhide Uchino, Tetsuro Yamamoto, Junichi Yamashita
  • Patent number: 8593441
    Abstract: Disclosed herein is a display apparatus, including: a plurality of subpixels disposed adjacent each other and forming one pixel which forms a unit for formation of a color image; the plurality of subpixels including a first subpixel which emits light of the shortest wavelength and a second subpixel disposed adjacent the first subpixel; the second subpixel having a light blocking member disposed between the second subpixel and the first subpixel and having a width greater than a channel length or a channel width of a transistor which forms the second subpixel.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: November 26, 2013
    Assignee: Sony Corporation
    Inventors: Tetsuro Yamamoto, Katsuhide Uchino
  • Patent number: 8593445
    Abstract: A display apparatus employs a pixel array section including pixel circuits forming a matrix, signal lines as columns, scan lines as rows and power-supply lines, and driving sections. The driving sections are a signal selector, a write scanner and a drive scanner. The signal selector provides an electric potential representing a gradation or a predetermined reference electric potential. The write scanner provides a control signal. The drive scanner provides a power-supply voltage changing the electric potential from high to low. The drive scanner drives adjacent power-supply lines as a group. The number of lines as a group is determined in advance. The drive scanner switches a power-supply voltage from high to low and vice versa, and applies the voltage to groups by shifting the phase from group to group. The voltage is supplied to a group at the same phase and switched the electric potential.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: November 26, 2013
    Assignee: Sony Corporation
    Inventors: Tetsuro Yamamoto, Katsuhide Uchino, Naobumi Toyomura
  • Publication number: 20130310544
    Abstract: An objective is to provide screening methods for substances having an activity of promoting maturation into hemocytes. It was revealed that in the maturation process of erythrocytes and platelets, RP S19 multimers are released to the outside of the cell and act on the C5a receptors of erythroblasts and megakaryocytes, thereby causing maturation of erythroblasts and megakaryocytes to erythrocytes and platelets. Based on such findings, the present invention provides methods of screening for substances having an activity of promoting maturation into hemocytes by targeting the RP S19 multimers and C5a receptors. The screening methods of the present invention can detect hemocyte maturation using an increase of the R4 RGS family as an indicator. Furthermore, the present invention provides agents for promoting hemocyte maturation, which comprise RP S19 multimers and a substance having an activity of promoting maturation into hemocytes as useful components.
    Type: Application
    Filed: May 13, 2011
    Publication date: November 21, 2013
    Applicants: Chugai Seiyaku Kabushiki Kaisha, National University Corporation Kumamoto University
    Inventors: Tetsuro Yamamoto, Hiroshi Nishiura, Hideki Saito
  • Patent number: 8587195
    Abstract: Disclosed herein is a display including an acceptor substrate having thereon a red light-emitting element column, a green light-emitting element column, and a blue light-emitting element column that are arranged along a row direction and are each obtained by arranging rectangular organic light-emitting elements for generating light of one of red, green, and blue along a longitudinal direction of the organic light-emitting elements.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: November 19, 2013
    Assignee: Sony Corporation
    Inventors: Keisuke Matsuo, Chiyoko Sato, Kohji Hanawa, Takanori Shibasaki, Tetsuro Yamamoto, Kiwamu Miura
  • Patent number: 8581807
    Abstract: Disclosed herein is a display device including a pixel array section having pixel circuits arranged in a form of a matrix, the pixel circuits each including a driving transistor for generating a driving current, an electrooptic element connected to an output terminal of the driving transistor, a storage capacitor for retaining information corresponding to signal amplitude of a video signal, and a sampling transistor for writing the information corresponding to the signal amplitude to the storage capacitor; a vertical scanning section configured to generate a vertical scanning pulse for vertical scanning of the pixel circuits; a horizontal scanning section configured to supply the video signal to the pixel circuits so as to coincide with the vertical scanning in the vertical scanning section; and a driving signal constancy achieving circuit for holding the driving current constant.
    Type: Grant
    Filed: June 8, 2009
    Date of Patent: November 12, 2013
    Assignee: Sony Corporation
    Inventors: Tetsuro Yamamoto, Katsuhide Uchino
  • Patent number: 8581889
    Abstract: A display unit with which diffraction reflection is able to be decreased is provided. The display unit includes a display section having an organic EL device and a pixel circuit for every pixel. The pixel circuit has a first transistor for writing a video signal and a second transistor for driving the organic EL device based on the video signal written by the first transistor. The second transistor has a gate, a source and a drain. The organic EL device has an anode, an organic layer, and a cathode. An upper face of the source or the drain is formed at least in a region opposed to the anode or the cathode.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: November 12, 2013
    Assignee: Sony Corporation
    Inventors: Takayuki Taneda, Tetsuro Yamamoto, Katsuhide Uchino, Yuki Seo