Patents by Inventor Hideto Ishiguro

Hideto Ishiguro 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: 9405954
    Abstract: A light receiving section includes light receiving elements. A light source section includes a light emitting section that illuminates the subject and transmissive sections. The light emitting section is provided with a first translucent layer, which includes a light emitting layer, and a reflection layer and a semi-transmissive reflection layer interposing the first translucent layer, so that a resonance structure is formed. Each of the transmissive sections includes a second translucent layer, and a first semi-transmissive reflection layer and a second semi-transmissive reflection layer, which are opposed each other interposing the second translucent layer, so that a resonance structure that resonates incident light from the subject side is formed.
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: August 2, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Hideto Ishiguro, Tsukasa Eguchi, Tetsuji Fujita, Hidetoshi Yamamoto
  • Publication number: 20160218238
    Abstract: An biological body information acquisition apparatus includes an imager including light emitting devices that are arranged in a plane and emit light toward a human body and light receiving devices that are arranged in a plane and receive light from the human body and a light guide plate that is layered on the imager on the side thereof facing the human body and has light transmissivity in the direction of a normal to the light receiving devices and the light emitting devices. The light guide has a first portion (holes) and a second portion (substrate) that are arranged in a plane and have refractive indices different from each other. The first portion (holes) is so disposed as to coincide with the light receiving devices in a plan view, and the second portion (substrate) is so disposed as to coincide with the light emitting devices in the plan view.
    Type: Application
    Filed: January 22, 2016
    Publication date: July 28, 2016
    Inventors: Tsukasa EGUCHI, Hideto ISHIGURO
  • Patent number: 9379157
    Abstract: An image acquisition device includes: an imaging unit which has a plurality of light receiving elements; a condensing unit which condenses light which is input to the light receiving elements, and includes a plurality of microlenses which are arranged one to one with the light receiving elements on a plane; and a band pass filter including amorphous silicon films on a path on which light from an object is input to the light receiving elements.
    Type: Grant
    Filed: April 2, 2012
    Date of Patent: June 28, 2016
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hitoshi Tsuchiya, Hideto Ishiguro, Tsukasa Eguchi
  • Patent number: 9343013
    Abstract: Provided is a method of driving a pixel circuit including a light emitting element and a driving transistor which are connected in series to each other, and a storage capacitor disposed between a path between the light emitting element and the driving transistor and a gate of the driving transistor, the method including the steps of: supplying a driving signal to a gate of the driving transistor; and changing the potential of the driving signal over time so that the time rate of change of the potential of the driving signal at the point in time when the supply of the driving signal stops becomes the time rate of change corresponding to a specified gradation of the pixel circuit.
    Type: Grant
    Filed: May 2, 2014
    Date of Patent: May 17, 2016
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hideto Ishiguro, Satoshi Yatabe
  • Publication number: 20160071456
    Abstract: An electro-optical device includes a first storage capacitor that has a first electrode and a second electrode, and a second storage capacitor that has a third electrode and a fourth electrode, and a first pixel circuit. The first pixel circuit includes a first transistor having a first gate, a first drain, and a first source, an electro-optical element, a second transistor through which a first data line is electrically connected to the first gate during the second transistor is in an on-state, and a third transistor through which the first gate is electrically connected to the first drain or the first source. The second electrode and the third electrode are electrically connected to the first data line.
    Type: Application
    Filed: November 17, 2015
    Publication date: March 10, 2016
    Inventors: Hitoshi OTA, Hideto ISHIGURO
  • Publication number: 20160058339
    Abstract: A small biological information acquisition device that can noninvasively acquire biological information is provided. The biological information acquisition device includes a first light emitting element 30A serving as a first infrared light source that is used for acquiring positional information of blood vessels and emits infrared light having a peak wavelength ?1, and a second light emitting element 30B serving as a second infrared light source that is used for spectral analysis and emits infrared light having a peak wavelength ?2 different from the peak wavelength ?1.
    Type: Application
    Filed: August 5, 2015
    Publication date: March 3, 2016
    Inventors: Tsukasa EGUCHI, Hideto ISHIGURO
  • Publication number: 20160055796
    Abstract: A first storage capacitor is provided with respect to a data line. A pixel circuit includes a first transistor supplying current according to a voltage between a gate and a source, a light emitting element emitting light corresponding to current supplied by the first transistor, and a second transistor which is turned on or off between the data lines and the gate node. In a first period, an initial potential is supplied to the data line by turning on the second transistor, and in a second period, a data signal of a potential corresponding to a gradation level is supplied to the other end of the first storage capacitor by turning on the second transistor. After the second period, the second transistor is turned off.
    Type: Application
    Filed: November 2, 2015
    Publication date: February 25, 2016
    Inventors: Hitoshi OTA, Hideto ISHIGURO
  • Publication number: 20160035940
    Abstract: A manufacturing method is a method for manufacturing a light emitting apparatus including a translucent substrate, and a light emitting section and an optical filer section that are arranged in a first region of the substrate when viewed in a normal direction of a first surface of the substrate. The manufacturing method includes: forming a dielectric multilayer film over the first region of the substrate; forming a first electrode on the dielectric multilayer film included in the light emitting section; forming a functional layer with a light emitting layer over the first electrode and the dielectric multilayer film included in the optical filter section; and forming a second electrode having semi-transmissive reflectivity on the functional layer over the first region of the substrate.
    Type: Application
    Filed: September 21, 2015
    Publication date: February 4, 2016
    Inventors: Tetsuji FUJITA, Hidetoshi YAMAMOTO, Hideto ISHIGURO, Tsukasa EGUCHI
  • Patent number: 9230477
    Abstract: A first storage capacitor is provided with respect to a data line. A pixel circuit includes a first transistor supplying current according to a voltage between a gate and a source, a light emitting element emitting light corresponding to current supplied by the first transistor, and a second transistor which is configured to be turned on or off between the data line and the gate. In a first period, an initial potential is supplied to the data line by turning on the second transistor, and in a second period, a data signal of a potential corresponding to a gradation level is supplied to the first storage capacitor by turning on the second transistor. After the second period, the second transistor is turned off.
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: January 5, 2016
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hitoshi Ota, Hideto Ishiguro
  • Patent number: 9224333
    Abstract: An electro-optical device includes a first storage capacitor that has a first electrode and a second electrode, and a second storage capacitor that has a third electrode and a fourth electrode, and a first pixel circuit. The first pixel circuit includes a first transistor having a first gate, a first drain, and a first source, an electro-optical element, a second transistor through which a first data line is electrically connected to the first gate during the second transistor is in an on-state, and a third transistor through which the first gate is electrically connected to the first drain or the first source. The second electrode and the third electrode are electrically connected to the first data line.
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: December 29, 2015
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hitoshi Ota, Hideto Ishiguro
  • Publication number: 20150325615
    Abstract: An imaging apparatus includes a light emitting element layer, an optically transmissive first substrate and a light receiving element. The light emitting element layer faces a plurality of lenses. The optically transmissive first substrate includes a first surface with the light emitting element layer being disposed on the first surface. The light receiving element is arranged on an opposite side to the light emitting element layer so as to interpose the first substrate.
    Type: Application
    Filed: July 13, 2015
    Publication date: November 12, 2015
    Inventors: Hitoshi TSUCHIYA, Tsukasa EGUCHI, Hideto ISHIGURO
  • Patent number: 9178102
    Abstract: A light emitting apparatus includes a translucent substrate, and a light emitting section and an optical filter section arranged in a first region of the substrate when viewed in a normal direction of a first surface of the substrate. The light emitting section has a laminate structure that includes, on the first surface of the substrate, a dielectric multilayer film, a first electrode, a functional layer with a light emitting layer, and a second electrode having semi-transmissive reflectivity. The optical filter section has a laminate structure that includes, on the first surface of the substrate, the dielectric multilayer film, the functional layer, and the second electrode. The dielectric multilayer film and the functional layer extend over the first region.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: November 3, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Tetsuji Fujita, Hidetoshi Yamamoto, Hideto Ishiguro, Tsukasa Eguchi
  • Publication number: 20150310249
    Abstract: A light receiving section includes light receiving elements. A light source section includes a light emitting section that illuminates the subject and transmissive sections. The light emitting section is provided with a first translucent layer, which includes a light emitting layer, and a reflection layer and a semi-transmissive reflection layer interposing the first translucent layer, so that a resonance structure is formed. Each of the transmissive sections includes a second translucent layer, and a first semi-transmissive reflection layer and a second semi-transmissive reflection layer, which are opposed each other interposing the second translucent layer, so that a resonance structure that resonates incident light from the subject side is formed.
    Type: Application
    Filed: June 15, 2015
    Publication date: October 29, 2015
    Inventors: Hideto ISHIGURO, Tsukasa EGUCHI, Tetsuji FUJITA, Hidetoshi YAMAMOTO
  • Publication number: 20150282739
    Abstract: A biological information acquisition apparatus includes a light source, a light-receiving unit, and a calculation unit. The light source is configured to irradiate a biological body with light. The light-receiving unit is configured to receive the light from the biological body. The calculation unit is configured to determine biological information. The calculation unit is configured to detect a first value by using a first signal from the light-receiving unit while the light source emits the light, detect a second value by using a second signal from the light-receiving unit while the light source does not emit the light, determine a temperature of the biological body based on the second value, and correct the first value using the temperature.
    Type: Application
    Filed: April 1, 2015
    Publication date: October 8, 2015
    Inventors: Kazuhiro NISHIDA, Hideto ISHIGURO, Tsukasa EGUCHI
  • Patent number: 9117399
    Abstract: There is provided a method of driving a pixel circuit that includes a light emitting element; a driving transistor that is connected to the light emitting element in series; and a storage capacitor that is interposed between a gate of the driving transistor and a path, which is formed between the light emitting element and the driving transistor.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: August 25, 2015
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hideto Ishiguro, Satoshi Yatabe
  • Patent number: 9111831
    Abstract: An imaging apparatus comprising an optically transmissive first substrate which includes a first surface, a plurality of lenses which oppose the first surface and focus incident light from the opposite side to the first substrate, a light emitting layer on a surface of the first surface, and a plurality of light receiving elements which are arranged on the opposite side to the plurality of lenses so as to interpose the first substrate.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: August 18, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Hitoshi Tsuchiya, Tsukasa Eguchi, Hideto Ishiguro
  • Publication number: 20150216482
    Abstract: In a blood sugar level measuring device, a blood-sugar-level predicting unit predicts a blood sugar level of a user. A light emitting unit irradiates measurement light to the inside of a living organism of the user. A light-emission control unit, a measurement-point-candidate setting unit, a light-amount-control-method determining unit, and a measurement-point selecting unit control a light amount of measurement light per one measurement on the basis of the predicted blood sugar level. A light-reception control unit, a light-absorption-spectrum generating unit, and a blood-sugar-value calculating unit receive reflected light from the user and measure a blood sugar level.
    Type: Application
    Filed: January 20, 2015
    Publication date: August 6, 2015
    Inventors: Hirokazu KASAHARA, Kimitake MIZOBE, Hideto ISHIGURO
  • Publication number: 20150216454
    Abstract: A blood glucose level measurement apparatus is a non-invasive measurement apparatus which is mounted on the wrist or the like of a user and performs a measurement by using light. When a biological image is captured in order to acquire a blood vessel pattern, not all light emitting elements emit light (entire surface emission is not performed) but some of the light emitting elements within a light emission range emit light. The light emission range is set to a range centering on an irradiation position (measurement light emitting element) in the previous measurement.
    Type: Application
    Filed: January 30, 2015
    Publication date: August 6, 2015
    Inventors: Hirokazu KASAHARA, Kimitake MIZOBE, Hideto ISHIGURO
  • Publication number: 20150216457
    Abstract: A blood glucose level measurement apparatus is a non-invasive measurement apparatus mounted on a wrist or the like of a user and using light, and intermittently measures a blood glucose level of the user. A measurement interval is set according to a measured blood glucose level. For example, in a case where the measured blood glucose level is low, the measurement interval is set to be short.
    Type: Application
    Filed: January 29, 2015
    Publication date: August 6, 2015
    Inventors: Hirokazu KASAHARA, Kimitake MIZOBE, Hideto ISHIGURO
  • Publication number: 20150216458
    Abstract: In a biological information processing apparatus, a variation index value calculation section calculates a variation index value on the basis of a plurality of measured values obtained by measuring biological information of a subject. A display data generation section generates display data which is used to display a measurement result and undergoes identification display corresponding to the variation index value.
    Type: Application
    Filed: January 29, 2015
    Publication date: August 6, 2015
    Inventors: Hirokazu KASAHARA, Tsukasa EGUCHI, Hideto ISHIGURO