Patents by Inventor Akira Miyamae

Akira Miyamae 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: 11024874
    Abstract: A lithium secondary battery includes a positive electrode, a negative electrode, a separator, and a nonaqueous electrolyte having lithium-ion conductivity. The positive electrode contains a positive electrode active material containing lithium. The negative electrode faces the positive electrode. The separator is disposed between the positive and negative electrodes. The negative electrode includes a negative electrode current collector. The negative electrode current collector includes a layer and protrusions. The layer has a first surface on which lithium metal is deposited during charge. The protrusions protrude from the first surface. At least one of the protrusions includes a conductive material and an insulative material.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: June 1, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Ryohei Miyamae, Akira Kano, Kensuke Nakura
  • Patent number: 9869856
    Abstract: An illumination device including a light source device, a rotary diffusion plate, which includes a first surface, a second surface, a diffusion section disposed on the first surface, and a detection section disposed on at least one of the first surface and the second surface, and to which light from the light source device is input, a light collecting optical system to which light from the diffusion section is input, a detector adapted to detect light from the detection section, and a control device adapted to control the light source device in accordance with a signal output from the detector. The detection section is disposed at a position different from a position where the light from the light source device enters the diffusion section.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: January 16, 2018
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Nozomu Inoue, Akira Miyamae, Shigehiro Yanase, Hiroyuki Shindo
  • Patent number: 9661285
    Abstract: A projector includes a first light source apparatus, a second light source apparatus, a laser light source apparatus, a first light modulator, a second light modulator, a third light modulator that modulates light from the laser light source apparatus, a cross prism that combines first image light, second image light, and third image light formed by the respective light modulators with one another, and a secondary light source image formation system that forms a secondary light source image on an optical path between the laser light source apparatus and the third light modulator, and the secondary light source image is so shaped that the length thereof in a direction perpendicular to a central intersection line of the cross prism is longer than the length thereof in a direction parallel to the central intersection line.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: May 23, 2017
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Akira Miyamae, Takayuki Matsubara
  • Publication number: 20160170199
    Abstract: An illumination device including a light source device, a rotary diffusion plate, which includes a first surface, a second surface, a diffusion section disposed on the first surface, and a detection section disposed on at least one of the first surface and the second surface, and to which light from the light source device is input, a light collecting optical system to which light from the diffusion section is input, a detector adapted to detect light from the detection section, and a control device adapted to control the light source device in accordance with a signal output from the detector. The detection section is disposed at a position different from a position where the light from the light source device enters the diffusion section.
    Type: Application
    Filed: August 1, 2014
    Publication date: June 16, 2016
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Nozomu INOUE, Akira MIYAMAE, Shigehiro YANASE, Hiroyuki SHINDO
  • Patent number: 9323045
    Abstract: An illumination device includes: a light source device adapted to emit an excitation light beam; and a rotating fluorescent plate having a single fluorescent layer adapted to convert a part or whole of the excitation light beam into a fluorescent light beam. The fluorescent light beam includes two or more colored light beams, and the single fluorescent layer is formed on a circular disk, which can be rotated by a motor, continuously along a circumferential direction of the circular disk.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: April 26, 2016
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hidefumi Sakata, Shunji Kamijima, Akira Miyamae, Shuji Narimatsu
  • Patent number: 9300929
    Abstract: An illumination device includes a substrate including a fluorescent layer, and capable of rotating around a predetermined rotary shaft, a light source adapted to emit an excitation light adapted to excite the fluorescent layer, and a control device adapted to control emission of the light source so that, when the substrate is rotating, a first area of the fluorescent layer is irradiated with the excitation light in one round, and at least a part of the first area is not irradiated with the excitation light in another round.
    Type: Grant
    Filed: January 11, 2012
    Date of Patent: March 29, 2016
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Akihiro Kashiwagi, Akira Miyamae
  • Patent number: 9291313
    Abstract: A wavelength conversion element includes a phosphor layer that includes phosphors and a binder. The thickness of a phosphor region obtained by multiplying the thickness of the phosphor layer by the volume concentration of the phosphor is equal to or larger than 15 ?m.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: March 22, 2016
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Akihiro Kashiwagi, Shigeo Nojima, Akira Miyamae
  • Patent number: 9206959
    Abstract: A wavelength conversion element includes a substrate, and a fluorescent material layer disposed on the substrate. The volume concentration of the fluorescent material in the fluorescent material layer is equal to or higher than 15 vol %.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: December 8, 2015
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Akihiro Kashiwagi, Shigeo Nojima, Akira Miyamae, Akira Egawa
  • Publication number: 20150042961
    Abstract: A projector includes a first light source apparatus, a second light source apparatus, a laser light source apparatus, a first light modulator, a second light modulator, a third light modulator that modulates light from the laser light source apparatus, a cross prism that combines first image light, second image light, and third image light formed by the respective light modulators with one another, and a secondary light source image formation system that forms a secondary light source image on an optical path between the laser light source apparatus and the third light modulator, and the secondary light source image is so shaped that the length thereof in a direction perpendicular to a central intersection line of the cross prism is longer than the length thereof in a direction parallel to the central intersection line.
    Type: Application
    Filed: July 30, 2014
    Publication date: February 12, 2015
    Inventors: Akira MIYAMAE, Takayuki MATSUBARA
  • Publication number: 20140152964
    Abstract: An illumination device includes: a light source device adapted to emit an excitation light beam; and a rotating fluorescent plate having a single fluorescent layer adapted to convert a part or whole of the excitation light beam into a fluorescent light beam. The fluorescent light beam includes two or more colored light beams, and the single fluorescent layer is formed on a circular disk, which can be rotated by a motor, continuously along a circumferential direction of the circular disk.
    Type: Application
    Filed: February 4, 2014
    Publication date: June 5, 2014
    Applicant: Seiko Epson Corporation
    Inventors: Hidefumi SAKATA, Shunji KAMIJIMA, Akira MIYAMAE, Shuji NARIMATSU
  • Patent number: 8678596
    Abstract: An illumination device includes: a light source device adapted to emit an excitation light beam; and a rotating fluorescent plate having a single fluorescent layer adapted to convert a part or whole of the excitation light beam into a fluorescent light beam. The fluorescent light beam includes two or more colored light beams, and the single fluorescent layer is formed on a circular disk, which can be rotated by a motor, continuously along a circumferential direction of the circular disk.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: March 25, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Hidefumi Sakata, Shunji Kamijima, Akira Miyamae, Shuji Narimatsu
  • Patent number: 8602562
    Abstract: A projector includes: a first solid-state light source device which includes a first solid-state light source emitting excitation light, and a fluorescent layer converting excitation light emitted from the first solid-state light source to light including a first color light component and a second color light component different from the first color light component, and emitting converted light; a second solid-state light source device which includes a second solid-state light source emitting a third color light component different from the first color light component and the second color light component; a light modulation device modulating the first color light component, the second color light component, and the third color light component in accordance with image information; and a projection optical system projecting the modulated light components from the light modulation device as a projection image.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: December 10, 2013
    Assignee: Seiko Epson Corporation
    Inventor: Akira Miyamae
  • Patent number: 8382288
    Abstract: A projector includes: a first solid-state light source device including a first solid-state light source emitting main excitation light, and a fluorescent layer converting the main excitation light to light including a first color light component and a second color light component different from the first color light component, and emitting converted light; a second solid-state light source device including a second solid-state light source emitting a third color light component different from the first and second color light components; a light modulation device modulating the first, second and third color light components in accordance with image information; a projection optical system projecting the modulated light components from the light modulation device as a projection image; and a color light combining optical system combining light emitted from the first solid-state light source device and the third color light component.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: February 26, 2013
    Assignee: Seiko Epson Corporation
    Inventors: Shuji Narimatsu, Akira Miyamae
  • Patent number: 8287132
    Abstract: A projector includes: a first solid-state light source device which includes a first solid-state light source emitting main excitation light, and a fluorescent layer converting main excitation light to light including a first color light component and a second color light component different from the first color light component, and emitting converted light; a second solid-state light source device which includes a second solid-state light source emitting a third color light component different from the first color light component and the second color light component; a light modulation device modulating the first color light component, the second color light component, and the third color light component in accordance with image information; a projection optical system projecting the modulated light components from the light modulation device as a projection image; and a third solid-state light source device which includes a third solid-state light source emitting auxiliary excitation light, wherein the fluo
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: October 16, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Akira Miyamae, Shuji Narimatsu
  • Publication number: 20120188516
    Abstract: An illumination device includes a substrate including a fluorescent layer, and capable of rotating around a predetermined rotary shaft, a light source adapted to emit an excitation light adapted to excite the fluorescent layer, and a control device adapted to control emission of the light source so that, when the substrate is rotating, a first area of the fluorescent layer is irradiated with the excitation light in one round, and at least a part of the first area is not irradiated with the excitation light in another round.
    Type: Application
    Filed: January 11, 2012
    Publication date: July 26, 2012
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Akihiro KASHIWAGI, Akira MIYAMAE
  • Patent number: 8047659
    Abstract: A light source device includes plural light-emitting elements that emit lights, a wavelength selection element that has plural light selection areas in which wavelength selection is performed for the lights emitted from the plural light-emitting elements, respectively, and selectively reflects a part of the lights emitted from the plural light-emitting elements, a state detecting unit that detects states of the plural light selection areas of the wavelength selection element, and a state changing unit that changes, according to the states of the plural light selection areas detected by the state detecting unit, the states of the light selection areas of the wavelength selection element to make wavelengths of the lights selected in the plural light selection areas different from one another.
    Type: Grant
    Filed: June 10, 2008
    Date of Patent: November 1, 2011
    Assignee: Seiko Epson Corporation
    Inventors: Fumika Sumiyama, Akira Miyamae
  • Publication number: 20110228232
    Abstract: An illumination device includes: a light source device adapted to emit an excitation light beam; and a rotating fluorescent plate having a single fluorescent layer adapted to convert a part or whole of the excitation light beam into a fluorescent light beam. The fluorescent light beam includes two or more colored light beams, and the single fluorescent layer is formed on a circular disk, which can be rotated by a motor, continuously along a circumferential direction of the circular disk.
    Type: Application
    Filed: March 11, 2011
    Publication date: September 22, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Hidefumi SAKATA, Shunji KAMIJIMA, Akira MIYAMAE, Shuji NARIMATSU
  • Publication number: 20110051095
    Abstract: A projector includes: a first solid-state light source device which includes a first solid-state light source emitting main excitation light, and a fluorescent layer converting main excitation light emitted from the first solid-state light source to light including a first color light component and a second color light component different from the first color light component, and emitting converted light; a second solid-state light source device which includes a second solid-state light source emitting a third color light component different from the first color light component and the second color light component; a light modulation device modulating the first color light component, the second color light component, and the third color light component in accordance with image information; a projection optical system projecting the modulated light components from the light modulation device as a projection image; and a color light combining optical system combining light emitted from the first solid-state lig
    Type: Application
    Filed: June 30, 2010
    Publication date: March 3, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Shuji NARIMATSU, Akira Miyamae
  • Publication number: 20110043761
    Abstract: A projector includes: a first solid-state light source device which includes a first solid-state light source emitting excitation light, and a fluorescent layer converting excitation light emitted from the first solid-state light source to light including a first color light component and a second color light component different from the first color light component, and emitting converted light; a second solid-state light source device which includes a second solid-state light source emitting a third color light component different from the first color light component and the second color light component; a light modulation device modulating the first color light component, the second color light component, and the third color light component in accordance with image information; and a projection optical system projecting the modulated light components from the light modulation device as a projection image.
    Type: Application
    Filed: June 30, 2010
    Publication date: February 24, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Akira MIYAMAE
  • Patent number: RE45033
    Abstract: A projector includes: a first solid-state light source device which includes a first solid-state light source emitting main excitation light, and a fluorescent layer converting main excitation light to light including a first color light component and a second color light component different from the first color light component, and emitting converted light; a second solid-state light source device which includes a second solid-state light source emitting a third color light component different from the first color light component and the second color light component; a light modulation device modulating the first color light component, the second color light component, and the third color light component in accordance with image information; a projection optical system projecting the modulated light components from the light modulation device as a projection image; and a third solid-state light source device which includes a third solid-state light source emitting auxiliary excitation light, wherein the fluo
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: July 22, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Akira Miyamae, Shuji Narimatsu