Patents by Inventor Shoichi Uchiyama

Shoichi Uchiyama 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: 20210262373
    Abstract: A novel catalyst constituent material for combustion gas purification, which has an extremely good ratio of contact between each catalyst metal particle and an exhaust gas; and catalyst device which uses this catalyst constituent material for combustion gas purification; and a method for producing this catalyst constituent material for combustion gas purificaton. The catalyst constituent obtained by mixing catalyst metal particles and a pore-forming material that disappears at high temperatures into a catalyst supporting material which is a slurry containing fine ceramic particles. The pore-forming material also contains long fibers of cellulose nanofibers and/or short fibers of cellulose nanofibers.
    Type: Application
    Filed: February 7, 2020
    Publication date: August 26, 2021
    Inventors: Hou PENG, Kazuhiro Nishihara, Shoichi Uchiyama, Hiromi Suzuki, Miho Yamashita
  • Patent number: 10831288
    Abstract: A projector including an exterior enclosure, a light source apparatus, a light modulator, a projection optical apparatus, a plurality of detection light radiators that radiate detection light used to detect a pointing element onto a projection area, an imager that receives light that belongs to a wavelength region including the wavelength of the detection light to capture an image of the projection area, and a position detector that detects the position of the pointing element in the projection area based on the image captured by the imager, wherein the plurality of detection light radiators are arranged in different positions on the exterior enclosure, the plurality of detection light radiators include a first detection light radiator, and the first detection light radiator is so configured that a distance therefrom to another detection light radiator out of the plurality of detection light radiators is changeable.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: November 10, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Shoichi Uchiyama
  • Patent number: 10670953
    Abstract: A light source device is provided with a blue laser emitting element, a red laser emitting element, a phosphor, a polarization split element having a polarization split function with respect to blue light and red light, and a diffusion element. The blue light emitted from the blue laser emitting element enters the polarization split element to be split into a first blue polarization component and a second blue polarization component. The first blue polarization component enters the diffusion element to turn to blue diffused light. The phosphor is excited by the second blue polarization component to emit fluorescence, and the red light emitted from the red laser emitting element enters the diffusion element to be diffusely transmitted to turn to red diffused light. The blue diffused light, the red diffused light and a part of the fluorescence are combined with each other, and then emitted from the polarization split element.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: June 2, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Shoichi Uchiyama
  • Patent number: 10642140
    Abstract: An illumination device includes a blue laser emitting element, a red laser emitting element, a diffusely reflecting element configured to diffuse and reflect a part of light from the blue laser emitting element, a phosphor, a bandpass filter provided to the phosphor to transmit light from the red laser emitting element, a polarization splitting/combining element having a polarization split function, and a first wave plate disposed between the polarization splitting/combining element and the diffusely reflecting element. The polarization splitting/combining element guides a blue first polarization component to the diffusely reflecting element and guides a blue second polarization component to the phosphor. Then, the polarization splitting/combining element combines the fluorescence, the light from the red laser emitting element entering a second surface of the phosphor and then emitted from a first surface, and blue diffused light with each other to generate illumination light.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: May 5, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Shoichi Uchiyama
  • Publication number: 20190391475
    Abstract: An illumination device includes a blue laser emitting element, a red laser emitting element, a diffusely reflecting element configured to diffuse and reflect a part of light from the blue laser emitting element, a phosphor, a bandpass filter provided to the phosphor to transmit light from the red laser emitting element, a polarization splitting/combining element having a polarization split function, and a first wave plate disposed between the polarization splitting/combining element and the diffusely reflecting element. The polarization splitting/combining element guides a blue first polarization component to the diffusely reflecting element and guides a blue second polarization component to the phosphor. Then, the polarization splitting/combining element combines the fluorescence, the light from the red laser emitting element entering a second surface of the phosphor and then emitted from a first surface, and blue diffused light with each other to generate illumination light.
    Type: Application
    Filed: June 21, 2019
    Publication date: December 26, 2019
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Shoichi UCHIYAMA
  • Publication number: 20190391473
    Abstract: A light source device is provided with a blue laser emitting element, a red laser emitting element, a phosphor, a polarization split element having a polarization split function with respect to blue light and red light, and a diffusion element. The blue light emitted from the blue laser emitting element enters the polarization split element to be split into a first blue polarization component and a second blue polarization component. The first blue polarization component enters the diffusion element to turn to blue diffused light. The phosphor is excited by the second blue polarization component to emit fluorescence, and the red light emitted from the red laser emitting element enters the diffusion element to be diffusely transmitted to turn to red diffused light. The blue diffused light, the red diffused light and a part of the fluorescence are combined with each other, and then emitted from the polarization split element.
    Type: Application
    Filed: June 19, 2019
    Publication date: December 26, 2019
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Shoichi UCHIYAMA
  • Publication number: 20180120960
    Abstract: A projector including an exterior enclosure, a light source apparatus, a light modulator, a projection optical apparatus, a plurality of detection light radiators that radiate detection light used to detect a pointing element onto a projection area, an imager that receives light that belongs to a wavelength region including the wavelength of the detection light to capture an image of the projection area, and a position detector that detects the position of the pointing element in the projection area based on the image captured by the imager, wherein the plurality of detection light radiators are arranged in different positions on the exterior enclosure, the plurality of detection light radiators include a first detection light radiator, and the first detection light radiator is so configured that a distance therefrom to another detection light radiator out of the plurality of detection light radiators is changeable.
    Type: Application
    Filed: October 16, 2017
    Publication date: May 3, 2018
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Shoichi UCHIYAMA
  • Patent number: 8684541
    Abstract: A lighting apparatus used for a projection type display is provided, which can change the incident ray volume to an optical modulation device without changing the optical output intensity of the lamp, and can exhibit excellent effects in expressive power of an image and adaptability to the use environment. The lighting apparatus of the present invention comprises; a light source, two fly-eye lenses constituting a uniform lighting device, and a shading plate arranged between these fly-eye lenses and constituting a dimming device for adjusting the amount of light of the outgoing light from the light source. The angle of inclination of the shading plate is controlled based on an image signal supplied to the optical modulation device, thereby enabling adjustment of the amount of light.
    Type: Grant
    Filed: July 21, 2008
    Date of Patent: April 1, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Hidehito Iisaka, Shoichi Uchiyama
  • Publication number: 20130296483
    Abstract: A method for producing an olefin oligomer mixture comprising: feeding a raw olefin oligomer mixture to a first evaporator; feeding a residue which is taken out from the first evaporator to a second evaporator, and returning a distillate which is distilled from the second evaporator to the first evaporator; taking a distillate out from the first evaporator; feeding a residue which is taken out from the second evaporator to a third evaporator; and taking a distillate out from the third evaporator.
    Type: Application
    Filed: January 11, 2012
    Publication date: November 7, 2013
    Applicant: IDEMITSU KOSAN CO, LTD.
    Inventors: Tatsuyoshi Yokota, Shoichi Uchiyama, Hdeki Sato, Shinji Miyamoto
  • Patent number: 8164069
    Abstract: A light-emitting body of rapid speed of response and high light emission intensity, and an electron beam detector, scanning electron microscope and mass spectroscope using this are provided. In the light-emitting body 10 according to the present invention, when fluorescence is emitted by a nitride semiconductor layer 14 formed on one face 12a of a substrate 12 in response to incidence of electrons, at least some of this fluorescence is transmitted through this substrate 12, whereby that fluorescence is emitted from the other face 12b of the substrate. The response speed of this fluorescence is not more than ?sec order. Also, the intensity of emission of this fluorescence is almost identical to that of a conventional P47 phosphor. Specifically, with this light-emitting body 10, a response speed and light emission intensity are obtained that are fully satisfactory for application to a scanning electron microscope or mass spectroscope.
    Type: Grant
    Filed: January 10, 2011
    Date of Patent: April 24, 2012
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Shoichi Uchiyama, Yasufumi Takagi, Minoru Niigaki, Minoru Kondo, Itaru Mizuno
  • Publication number: 20110101219
    Abstract: A light-emitting body of rapid speed of response and high light emission intensity, and an electron beam detector, scanning electron microscope and mass spectroscope using this are provided. In the light-emitting body 10 according to the present invention, when fluorescence is emitted by a nitride semiconductor layer 14 formed on one face 12a of a substrate 12 in response to incidence of electrons, at least some of this fluorescence is transmitted through this substrate 12, whereby that fluorescence is emitted from the other face 12b of the substrate. The response speed of this fluorescence is not more than ?sec order. Also, the intensity of emission of this fluorescence is almost identical to that of a conventional P47 phosphor. Specifically, with this light-emitting body 10, a response speed and light emission intensity are obtained that are fully satisfactory for application to a scanning electron microscope or mass spectroscope.
    Type: Application
    Filed: January 10, 2011
    Publication date: May 5, 2011
    Inventors: Shoichi UCHIYAMA, Yasufumi TAKAGI, Minoru NIIGAKI, Minoru KONDO, Itaru MIZUNO
  • Patent number: 7910895
    Abstract: A light-emitting body of rapid speed of response and high light emission intensity, and an electron beam detector, scanning electron microscope and mass spectroscope using this are provided. In the light-emitting body 10 according to the present invention, when fluorescence is emitted by a nitride semiconductor layer 14 formed on one face 12a of a substrate 12 in response to incidence of electrons, at least some of this fluorescence is transmitted through this substrate 12, whereby that fluorescence is emitted from the other face 12b of the substrate. The response speed of this fluorescence is not more than ?sec order. Also, the intensity of emission of this fluorescence is almost identical to that of a conventional P47 phosphor. Specifically, with this light-emitting body 10, a response speed and light emission intensity are obtained that are fully satisfactory for application to a scanning electron microscope or mass spectroscope.
    Type: Grant
    Filed: April 7, 2005
    Date of Patent: March 22, 2011
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Shoichi Uchiyama, Yasufumi Takagi, Minoru Niigaki, Minoru Kondo, Itaru Mizuno
  • Patent number: 7841725
    Abstract: An image display device includes a first optical modulator that modulates a plurality of color lights coming from a light source, a color combination member that combines the color lights, a second optical modulator that modulates a light provided by the color combination member as a result of the color light combination, and a relay optical system that is disposed between the color combination member and the second optical modulator. The replay optical system guides the light provided by the color combination member to the second optical modulator. A light transmissive member is disposed between the relay optical system and the second optical modulator, and allows optical path conditions from the first optical modulator to the relay optical system via the color combination member to be substantially the same as optical path conditions from the relay optical system to the second optical modulator.
    Type: Grant
    Filed: October 25, 2006
    Date of Patent: November 30, 2010
    Assignee: Seiko Epson Corporation
    Inventors: Junichi Nakamura, Takashi Nitta, Shoichi Uchiyama, Tsunemori Asahi
  • Patent number: 7742028
    Abstract: A display control apparatus that controls first and second modulation sections optically connected in series includes a storage unit and a control unit. The storage unit stores information to specify a defective pixel of the first modulation section. The control unit controls the second modulation section in response to a defect of the defective pixel being stored in the storage unit.
    Type: Grant
    Filed: September 26, 2005
    Date of Patent: June 22, 2010
    Assignee: Seiko Epson Corporation
    Inventors: Takashi Nitta, Junichi Nakamura, Shoichi Uchiyama, Tsunemori Asahi
  • Patent number: 7712902
    Abstract: A projector includes: a first light modulation device that modulates illumination light; a second light modulation device that further modulates the illumination light modulated by the first light modulation device; a projection unit that projects the modulated illumination light toward a screen; and an optical device moving unit that moves an optical device blocking at least part of the illumination light relatively to a light path of the illumination light to move the device off the light path in response to an external request.
    Type: Grant
    Filed: March 24, 2006
    Date of Patent: May 11, 2010
    Assignee: Seiko Epson Corporation
    Inventors: Junichi Nakamura, Takashi Nitta, Shoichi Uchiyama, Tsunemori Asahi
  • Patent number: 7683919
    Abstract: In a projection-type display device 1, a display control device 2 that controls a first DMD 50 and a second DMD 70 is composed by comprising an interface circuit 2a, a mirror device drive circuit 2b for controlling the driving of the micromirrors of second DMD 50, a mirror device drive circuit 2c for controlling the driving of the micromirrors of second DMD 70, a CPU 2d that controls computations and the entire system based on a control program, a ROM 2e that contains the control program of CPU 2d and so forth in a predefined area, and a RAM 2f for containing data read from ROM 2e and so forth and computation results required for the computation process of CPU 2d.
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: March 23, 2010
    Assignee: Seiko Epson Corporation
    Inventors: Tsunemori Asahi, Junichi Nakamura, Shoichi Uchiyama, Takashi Nitta
  • Patent number: 7663705
    Abstract: Exemplary embodiments of the present invention provide a light propagation characteristic control apparatus which extends the light-intensity dynamic range and the number of levels, and are suited for enhancing image quality and reducing the size and generation time of tables. Exemplary embodiments provide a projection display apparatus that tentatively decides a transmissivity T2 of each pixel of a color-modulation light valve depending upon HDR display data, and decides a transmissivity T1 of each pixel of an intensity-modulation light valve depending upon a tentatively decided transmissivity T2 and the HDR display data, and a control value of each pixel of the intensity-modulation light valve depending upon a decided transmissivity T1. Depending upon a decided transmissivity T1 and the HDR display data, transmissivity T2 is decided of each pixel of the color-modulation light valve. Depending upon a decided transmissivity T2, a control value is decided of each pixel of the color-modulation light valve.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: February 16, 2010
    Assignee: Seiko Epson Corporation
    Inventors: Tsunemori Asahi, Junichi Nakamura, Shoichi Uchiyama, Takashi Nitta
  • Patent number: 7652425
    Abstract: A transmission type photocathode includes a light absorption layer 1 formed of diamond or a material containing diamond as a main component, a supporting frame 21 for reinforcing the mechanical strength of the light absorption layer 1, a first electrode 31 provided at the plane of incidence of the light absorption layer 1, and a second electrode 32 provided at the plane of emission of the light absorption layer 1. A voltage is applied between the plane of incidence and plane of emission of the light absorption layer 1 to form an electric field in the light absorption layer 1. When light to be detected is made incident and photoelectrons occur in the light absorption layer 1, the photoelectrons are accelerated to the plane of emission by the electric field formed in the light absorption layer 1, and emitted to the outside of the transmission type photocathode.
    Type: Grant
    Filed: February 24, 2003
    Date of Patent: January 26, 2010
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Minoru Niigaki, Shoichi Uchiyama, Hirofumi Kan
  • Patent number: 7581836
    Abstract: An image display device that displays an image by modulating a light from a light source according to display image data, includes: a first light modulation element that modulates a light emitted from the light source; and a second light modulation element that is disposed on an optical path in series with the first light modulation element and modulates a light exiting from the first light modulation element, wherein the first light modulation element and the second light modulation element are disposed in such a manner that a bright-field direction of an optical image of the first light modulation element and a bright-field direction of the second light modulation element almost coincide with each other.
    Type: Grant
    Filed: February 28, 2006
    Date of Patent: September 1, 2009
    Assignee: Seiko Epson Corporation
    Inventors: Shoichi Uchiyama, Junichi Nakamura, Takashi Nitta, Tsunemori Asahi
  • Patent number: 7575327
    Abstract: An image display apparatus includes: a light source; a first light modulation element which has a plurality of pixels whose light modulation characteristics can be independently controlled and modulates light emitted from the light source; a second light modulation element which has a plurality of pixels whose light modulation characteristics can be independently controlled and modulates light emitted from the first light modulation element; and a relay optical system disposed between the first light modulation element and the second light modulation element to create an image formation surface by forming an optical image produced by the first light modulation element at a predetermined position. A pixel surface of the second light modulation element is positioned away from the image formation surface of the optical image produced by the first light modulation element.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: August 18, 2009
    Assignee: Seiko Epson Corporation
    Inventor: Shoichi Uchiyama