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).
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Patent number: 11152585Abstract: 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: GrantFiled: March 13, 2018Date of Patent: October 19, 2021Assignee: PIONEER CORPORATIONInventor: Shinichi Ishizuka
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Patent number: 10904963Abstract: 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: GrantFiled: January 17, 2018Date of Patent: January 26, 2021Assignee: PIONEER CORPORATIONInventors: Kazuaki Arai, Shinichi Ishizuka
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Publication number: 20200020874Abstract: 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: ApplicationFiled: March 13, 2018Publication date: January 16, 2020Inventor: Shinichi ISHIZUKA
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Publication number: 20190394842Abstract: 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: ApplicationFiled: January 17, 2018Publication date: December 26, 2019Inventors: Kazuaki ARAI, Shinichi ISHIZUKA
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Patent number: 9444071Abstract: [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: GrantFiled: June 28, 2012Date of Patent: September 13, 2016Assignee: PIONEER CORPORATIONInventors: Ayako Yoshida, Shinichi Ishizuka, Takuo Shinohara
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Patent number: 9392659Abstract: 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: GrantFiled: December 10, 2012Date of Patent: July 12, 2016Assignee: PIONEER CORPORATIONInventors: Shinichi Ishizuka, Takeshi Nakamura
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Publication number: 20150327344Abstract: 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: ApplicationFiled: December 10, 2012Publication date: November 12, 2015Inventors: Shinichi ISHIZUKA, Takeshi NAKAMURA
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Publication number: 20150325809Abstract: [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: ApplicationFiled: June 28, 2012Publication date: November 12, 2015Applicant: Pioneer CorporationInventors: Ayako YOSHIDA, Shinichi ISHIZUKA, Takuo SHINOHARA
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Publication number: 20150145440Abstract: 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: ApplicationFiled: May 22, 2012Publication date: May 28, 2015Applicant: PIONEER CORPORATIONInventor: Shinichi Ishizuka
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Publication number: 20130040510Abstract: 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: ApplicationFiled: August 9, 2012Publication date: February 14, 2013Inventors: Shinichi Ishizuka, Ryosuke Soejima
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Publication number: 20120162169Abstract: 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: ApplicationFiled: June 19, 2009Publication date: June 28, 2012Applicant: PIONEER CORPORATIONInventor: Shinichi Ishizuka
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Publication number: 20120001891Abstract: 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: ApplicationFiled: September 12, 2011Publication date: January 5, 2012Applicant: PIONEER CORPORATIONInventor: Shinichi Ishizuka
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Patent number: 8063858Abstract: 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: GrantFiled: November 29, 2006Date of Patent: November 22, 2011Assignee: Pioneer CorporationInventor: Shinichi Ishizuka
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Patent number: 8059116Abstract: 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: GrantFiled: July 13, 2006Date of Patent: November 15, 2011Assignee: Pioneer CorporationInventor: Shinichi Ishizuka
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Publication number: 20110084992Abstract: 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: ApplicationFiled: May 23, 2008Publication date: April 14, 2011Applicant: PIONEER CORPORATIONInventor: Shinichi Ishizuka
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Publication number: 20090167649Abstract: 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: ApplicationFiled: November 29, 2006Publication date: July 2, 2009Applicant: Pioneer CorporationInventor: Shinichi Ishizuka
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Publication number: 20090058843Abstract: 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: ApplicationFiled: July 13, 2006Publication date: March 5, 2009Inventor: Shinichi Ishizuka
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Publication number: 20080284679Abstract: 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: ApplicationFiled: May 2, 2006Publication date: November 20, 2008Applicant: PIONEER CORPORATIONInventor: Shinichi ISHIZUKA
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Patent number: 7274363Abstract: 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: GrantFiled: December 19, 2002Date of Patent: September 25, 2007Assignee: Pioneer CorporationInventors: Shinichi Ishizuka, Masami Tsuchida, Hideo Ochi, Tsuyoshi Sakamoto
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Patent number: 7245277Abstract: 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: GrantFiled: July 9, 2003Date of Patent: July 17, 2007Assignee: Pioneer CorporationInventor: Shinichi Ishizuka