Patents by Inventor Shinichi Ishizuka

Shinichi Ishizuka 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: 10904963
    Abstract: An optical device includes a light emitting device and a sensor device (light receiving element). The light emitting device includes a substrate, a plurality of light emitting elements, and a plurality of light transmission portions. The substrate has a first surface and a second surface. The second surface is opposite to the first surface. The plurality of light emitting elements is positioned at the first surface side of the substrate. Each of the plurality of light transmission portions is positioned between adjacent light emitting elements. The light emitting device is light-transmissive by the plurality of light transmission portions. Light from the plurality of light emitting elements is mainly output from the second surface of the substrate. An amount of light emitted from each of the light emitting elements and leaked to the outside of the first surface of the substrate is reduced.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: January 26, 2021
    Assignee: PIONEER CORPORATION
    Inventors: Kazuaki Arai, Shinichi Ishizuka
  • Publication number: 20200020874
    Abstract: An optical device (30) includes a light-emitting device (10) and a sensor device (20) (light-receiving element (220)). The light-emitting device (10) includes a substrate (100), a plurality of light-emitting portions (140), and light-transmitting portions (106). The light-emitting portions (140) are located at a first surface (100a) side of the substrate (100). The light-emitting portion (140) has a light-shielding portion (102: first light-shielding portion). The light-shielding portion (102) is located at a position to cover light emitted from the adjacent light-emitting portion (140: first light-emitting portion) and emitted to the first surface (100a) side at at least any angle between 70° to 90° from the light-emitting device (10).
    Type: Application
    Filed: March 13, 2018
    Publication date: January 16, 2020
    Inventor: Shinichi ISHIZUKA
  • Publication number: 20190394842
    Abstract: An optical device includes a light emitting device and a sensor device (light receiving element). The light emitting device includes a substrate, a plurality of light emitting elements, and a plurality of light transmission portions. The substrate has a first surface and a second surface. The second surface is opposite to the first surface. The plurality of light emitting elements is positioned at the first surface side of the substrate. Each of the plurality of light transmission portions is positioned between adjacent light emitting elements. The light emitting device is light-transmissive by the plurality of light transmission portions. Light from the plurality of light emitting elements is mainly output from the second surface of the substrate. An amount of light emitted from each of the light emitting elements and leaked to the outside of the first surface of the substrate is reduced.
    Type: Application
    Filed: January 17, 2018
    Publication date: December 26, 2019
    Inventors: Kazuaki ARAI, Shinichi ISHIZUKA
  • Patent number: 9444071
    Abstract: [Problem] Provided is an organic EL panel in which on a support supporting at least one organic EL element, a connecting wire for supply of power to the organic EL is disposed, and which is capable of preventing damage of the support by heat and impact caused by melting disconnection of a fuse part that is provided in the connecting wire. [Solution Means] A buffer layer is disposed between a face supporting the connecting wire on the support and the fuse part.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: September 13, 2016
    Assignee: PIONEER CORPORATION
    Inventors: Ayako Yoshida, Shinichi Ishizuka, Takuo Shinohara
  • Patent number: 9392659
    Abstract: A light-emitting control unit (24) controls a light source (26). Specifically, the light-emitting control unit (24) controls the light source (26) in accordance with control data which is transmitted from a master control unit (10) through a communication line (32). A communication control unit (22) controls connection between the light-emitting control unit (24) and the communication line (32). Further, the communication control units (22) of a plurality of light-emitting modules (20) are connected to each other in series through a control line (34). In addition, the communication control unit (22) located at an uppermost stream is connected to the master control unit (10) through the control line (34).
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: July 12, 2016
    Assignee: PIONEER CORPORATION
    Inventors: Shinichi Ishizuka, Takeshi Nakamura
  • Publication number: 20150327344
    Abstract: A light-emitting control unit (24) controls a light source (26). Specifically, the light-emitting control unit (24) controls the light source (26) in accordance with control data which is transmitted from a master control unit (10) through a communication line (32). A communication control unit (22) controls connection between the light-emitting control unit (24) and the communication line (32). Further, the communication control units (22) of a plurality of light-emitting modules (20) are connected to each other in series through a control line (34). In addition, the communication control unit (22) located at an uppermost stream is connected to the master control unit (10) through the control line (34).
    Type: Application
    Filed: December 10, 2012
    Publication date: November 12, 2015
    Inventors: Shinichi ISHIZUKA, Takeshi NAKAMURA
  • Publication number: 20150325809
    Abstract: [Problem] Provided is an organic EL panel in which on a support supporting at least one organic EL element, a connecting wire for supply of power to the organic EL is disposed, and which is capable of preventing damage of the support by heat and impact caused by melting disconnection of a fuse part that is provided in the connecting wire. [Solution Means] A buffer layer is disposed between a face supporting the connecting wire on the support and the fuse part.
    Type: Application
    Filed: June 28, 2012
    Publication date: November 12, 2015
    Applicant: Pioneer Corporation
    Inventors: Ayako YOSHIDA, Shinichi ISHIZUKA, Takuo SHINOHARA
  • Publication number: 20150145440
    Abstract: An organic EL panel with less variation in an emission luminance thereof and a method for manufacturing a light-emitting device using the same are provided. The organic EL panel of the present invention includes: a substrate; a light-emitting section of the organic EL panel provided on the substrate; a current supply terminal provided on the substrate for supplying a current to the light-emitting section; and a current density adjusting section electrically connected to the current supply terminal in parallel to the light-emitting section and provided on the substrate. A current density of the light-emitting section is adjusted by processing of the current density adjusting section. Moreover, in the method for manufacturing a light-emitting device according to the present invention, after a light-emitting characteristic is adjusted by processing a post-processing region of the above-described organic EL panel, a light-emitting device including the processed organic EL panel is manufactured.
    Type: Application
    Filed: May 22, 2012
    Publication date: May 28, 2015
    Applicant: PIONEER CORPORATION
    Inventor: Shinichi Ishizuka
  • Publication number: 20130040510
    Abstract: A connector includes: a first contact part; a second contact part; and an elastic deformable part provided between the first and second contact parts, the elastic deformable part comprising: at least one rounding part which rounds less than one circle around a phantom line interconnecting a base position of the first contact part and a base position of the second contact part; a connecting part which is extended from one end of the rounding part to the first contact part; and a connecting part which is extended from the other end of the rounding part to the second contact part.
    Type: Application
    Filed: August 9, 2012
    Publication date: February 14, 2013
    Inventors: Shinichi Ishizuka, Ryosuke Soejima
  • Publication number: 20120162169
    Abstract: To control a chronological luminance decrease of an organic EL element in an active matrix drive type organic EL display and to provide a reliable organic EL display. An organic EL display comprising a luminance decrease detector to detect a luminance decrease of an organic EL element; a reverse bias voltage generator to generate a reverse bias voltage pulse according to an amount of the luminance decrease; and a controller to control applying the above reverse bias voltage pulse to a driving transistor in a time period in which the organic EL element emits no light.
    Type: Application
    Filed: June 19, 2009
    Publication date: June 28, 2012
    Applicant: PIONEER CORPORATION
    Inventor: Shinichi Ishizuka
  • Publication number: 20120001891
    Abstract: A display apparatus includes a capacitor which is provided on each of the pixels and stores the data signal while a first terminal of the capacitor is connected to a control electrode of the driving transistor, an application voltage generating unit which generates an application voltage to a second terminal of the capacitor, and a capacitor voltage adjusting unit which adjusts an application voltage to the second terminal of the capacitor.
    Type: Application
    Filed: September 12, 2011
    Publication date: January 5, 2012
    Applicant: PIONEER CORPORATION
    Inventor: Shinichi Ishizuka
  • Patent number: 8063858
    Abstract: A display includes connection lines each of which is provided for the corresponding scanning line of the display and is connected to a light emission element driving circuit, a ramp voltage generating section for generating ramp voltage for varying the control electrode voltage of each of the driver transistors relative to the voltage of the other electrode of the corresponding driver transistor to change the emission state of the corresponding light emission element, and a ramp voltage driver for supplying the ramp voltage to each of the connection lines provided for the corresponding scanning line in response to the scanning.
    Type: Grant
    Filed: November 29, 2006
    Date of Patent: November 22, 2011
    Assignee: Pioneer Corporation
    Inventor: Shinichi Ishizuka
  • Patent number: 8059116
    Abstract: A two-terminal switching device provided on each of a plurality of pixel units and connected at a first terminal to a control electrode of a drive transistor, the two-terminal switching device being transferred to a conductive state according to magnitude of the voltage applied to a second terminal to supply the applied voltage to the control electrode; and a reverse bias voltage applying unit for adjusting the voltage applied to the second terminal and applying a reverse bias voltage to the drive transistor are provided.
    Type: Grant
    Filed: July 13, 2006
    Date of Patent: November 15, 2011
    Assignee: Pioneer Corporation
    Inventor: Shinichi Ishizuka
  • Publication number: 20110084992
    Abstract: A display apparatus comprises an average luminance calculating unit that calculates average luminance of a display screen based on a video signal; and a drive voltage adjuster that adjusts a drive voltage of drive transistors each driving a light-emitting element provided in a pixel unit according to the calculated average luminance.
    Type: Application
    Filed: May 23, 2008
    Publication date: April 14, 2011
    Applicant: PIONEER CORPORATION
    Inventor: Shinichi Ishizuka
  • Publication number: 20090167649
    Abstract: A display includes connection lines each of which is provided for the corresponding scanning line of the display and is connected to a light emission element driving circuit, a ramp voltage generating section for generating ramp voltage for varying the control electrode voltage of each of the driver transistors relative to the voltage of the other electrode of the corresponding driver transistor to change the emission state of the corresponding light emission element, and a ramp voltage driver for supplying the ramp voltage to each of the connection lines provided for the corresponding scanning line in response to the scanning.
    Type: Application
    Filed: November 29, 2006
    Publication date: July 2, 2009
    Applicant: Pioneer Corporation
    Inventor: Shinichi Ishizuka
  • Publication number: 20090058843
    Abstract: A two-terminal switching device provided on each of a plurality of pixel units and connected at a first terminal to a control electrode of a drive transistor, the two-terminal switching device being transferred to a conductive state according to magnitude of the voltage applied to a second terminal to supply the applied voltage to the control electrode; and a reverse bias voltage applying unit for adjusting the voltage applied to the second terminal and applying a reverse bias voltage to the drive transistor are provided.
    Type: Application
    Filed: July 13, 2006
    Publication date: March 5, 2009
    Inventor: Shinichi Ishizuka
  • Publication number: 20080284679
    Abstract: A display apparatus includes a capacitor which is provided on each of the pixels and stores the data signal while a first terminal of the capacitor is connected to a control electrode of the driving transistor, an application voltage generating unit which generates an application voltage to a second terminal of the capacitor, and a capacitor voltage adjusting unit which adjusts an application voltage to the second terminal of the capacitor.
    Type: Application
    Filed: May 2, 2006
    Publication date: November 20, 2008
    Applicant: PIONEER CORPORATION
    Inventor: Shinichi ISHIZUKA
  • Patent number: 7274363
    Abstract: A display panel driving device and driving method for providing high quality images without irregular luminance even after long-time use. The value of the light-emission drive current flowing when causing each light-emission elements bearing each pixel to independently emit light in succession is measured, then the luminance is corrected for each input pixel data based on the above light-emission drive current values, associated with the pixels corresponding to the input pixel data. According to another aspect, the voltage value of the drive voltage is adjusted in such a manner that one value among each measured light-emission drive current value becomes equal to a predetermined reference current value. According to a further aspect, the current value is measured while an off-set current component corresponding to a leak current of the display panel is added to the current outputted from the drive voltage generator circuit and the resultant current is supplied to each of the pixel portions.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: September 25, 2007
    Assignee: Pioneer Corporation
    Inventors: Shinichi Ishizuka, Masami Tsuchida, Hideo Ochi, Tsuyoshi Sakamoto
  • Patent number: 7245277
    Abstract: An active type display panel comprises a plurality of pixel sections each having a series circuit constituted by a light emitting element and a drive element for supplying a drive current to the light emitting element, a pair of power supply lines which connect the series circuits of the pixel sections in parallel, and a plurality of measurement lines. Each of the pixel sections includes a switch element between a point connecting the light emitting element and the drive element, and one line of the measurement lines. A display device, in which the display panel is used, detects the voltage across the terminals of the light emitting element and controls the drive element such that the voltage across these terminals is a predetermined voltage.
    Type: Grant
    Filed: July 9, 2003
    Date of Patent: July 17, 2007
    Assignee: Pioneer Corporation
    Inventor: Shinichi Ishizuka
  • Patent number: 7233302
    Abstract: A display apparatus which can display an image at a proper luminance corresponding to a video signal irrespective of a temperature-related change or a change with the passage of time. The display apparatus has: a current source for generating a reference current; and a reference transistor having an input terminal for a power voltage, an output terminal to which the current source is connected, and a control terminal connected to the output terminal and having almost the same electrical characteristics as those of a driving transistor for supplying a drive current to a light emitting device serving as a pixel. The driving transistor is driven by a voltage (reference control voltage) on the control terminal of the reference transistor. The loss of electric power can be suppressed by the driving method of this apparatus.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: June 19, 2007
    Assignee: Pioneer Corporation
    Inventor: Shinichi Ishizuka