Patents by Inventor Tatsuya Iguchi

Tatsuya Iguchi 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: 11175576
    Abstract: A method of an operation of a projector, projector including first, second, and third light provider configured to output a first, second, and third light having first color, first generator configured to generate first output light from first light, second generator configured to generate second output light from second light, third generator configured to generate third output light from third light, and projection optical system configured to project projection image using first, second, and third output light, method includes, based on image information representing first image, amplification information representing degree of amplification of brightness of first image, and controlling, based on amplification information, proportion of light intensity of second output light to light intensity of second light received by second generator, and proportion of light intensity of third output light to light intensity of third light received by third generator.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: November 16, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Tatsuya Iguchi
  • Publication number: 20210200076
    Abstract: A method of an operation of a projector, projector including first, second, and third light provider configured to output a first, second, and third light having first color, first generator configured to generate first output light from first light, second generator configured to generate second output light from second light, third generator configured to generate third output light from third light, and projection optical system configured to project projection image using first, second, and third output light, method includes, based on image information representing first image, amplification information representing degree of amplification of brightness of first image, and controlling, based on amplification information, proportion of light intensity of second output light to light intensity of second light received by second generator, and proportion of light intensity of third output light to light intensity of third light received by third generator.
    Type: Application
    Filed: December 23, 2020
    Publication date: July 1, 2021
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Tatsuya IGUCHI
  • Patent number: 11016376
    Abstract: A projector that modulates light emitted by a light source unit and projects a resultant image includes the light source unit, which includes an array light source and a first retardation film that adjusts the white balance of the light emitted by the array light source, an electric power controller that adjusts electric power to be supplied to the array light source in accordance with the period for which the light source unit was used, and a white balance controller that determines an adjustment parameter used to adjust the white balance of the light emitted by the light source unit and corresponding to the adjustment made by the electric power controller and causes the first retardation film to adjust the white balance based on the determined adjustment parameter.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: May 25, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Tatsuya Iguchi
  • Publication number: 20210011364
    Abstract: A projector that modulates light emitted by a light source unit and projects a resultant image includes the light source unit, which includes an array light source and a first retardation film that adjusts the white balance of the light emitted by the array light source, an electric power controller that adjusts electric power to be supplied to the array light source in accordance with the period for which the light source unit was used, and a white balance controller that determines an adjustment parameter used to adjust the white balance of the light emitted by the light source unit and corresponding to the adjustment made by the electric power controller and causes the first retardation film to adjust the white balance based on the determined adjustment parameter.
    Type: Application
    Filed: July 10, 2020
    Publication date: January 14, 2021
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Tatsuya IGUCHI
  • Patent number: 10412351
    Abstract: A projector includes a light-emitting element that outputs light of a first wavelength band which is in a first polarization state; a retardation plate that converts a portion of the light into a second polarization state; a polarization separation element that separates the light into a first flux of light in the first polarization state and a second flux of light in a second polarization state; a phosphor, which outputs a third flux of light of a second wavelength band; an optical modulator that modulates the light in accordance with a video signal; a light-emitting element control unit that controls brightness of the light-emitting element in accordance with brightness information; and a retardation plate control unit that controls a rotation angle of the retardation plate in accordance with the brightness information.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: September 10, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takashi Toyooka, Tatsuya Iguchi
  • Patent number: 10321108
    Abstract: A projector which modulates light emitted from a solid light source by an optical modulator and projects an image includes, a division unit which divides first light beams forming the image, a diffusion plate which diffuses one of the first light beams divided by the division unit, a first sensor which receives the light beams diffused by the diffusion plate, a second sensor which receives second light beams having a full width at the half maximum of a spectrum different from the first light beams and forming the image, an adjustment unit which adjusts a ratio of the first light beams to the second light beams according to a detection result of the first sensor and a detection result of the second sensor.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: June 11, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Tatsuya Iguchi, Takashi Toyooka
  • Publication number: 20180295332
    Abstract: A projector includes a light-emitting element that outputs light of a first wavelength band which is in a first polarization state; a retardation plate that converts a portion of the light into a second polarization state; a polarization separation element that separates the light into a first flux of light in the first polarization state and a second flux of light in a second polarization state; a phosphor, which outputs a third flux of light of a second wavelength band; an optical modulator that modulates the light in accordance with a video signal; a light-emitting element control unit that controls brightness of the light-emitting element in accordance with brightness information; and a retardation plate control unit that controls a rotation angle of the retardation plate in accordance with the brightness information.
    Type: Application
    Filed: June 15, 2018
    Publication date: October 11, 2018
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takashi TOYOOKA, Tatsuya IGUCHI
  • Patent number: 10015456
    Abstract: A projector includes a light-emitting element that outputs light of a first wavelength band which is in a first polarization state; a retardation plate that converts a portion of the light into a second polarization state; a polarization separation element that separates the light into a first flux of light in the first polarization state and a second flux of light in a second polarization state; a phosphor, which outputs a third flux of light of a second wavelength band; an optical modulator that modulates the light in accordance with a video signal; a light-emitting element control unit that controls brightness of the light-emitting element in accordance with brightness information; and a retardation plate control unit that controls a rotation angle of the retardation plate in accordance with the brightness information.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: July 3, 2018
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takashi Toyooka, Tatsuya Iguchi
  • Patent number: 9961311
    Abstract: A projector includes a light-emitting element that outputs light of a first wavelength band which is in a first polarization state; a retardation plate that converts a portion of the light into a second polarization state; a polarization separation element that separates the light from the retardation plate into a first flux of light in the first polarization state and a second flux of light in a second polarization state; a phosphor, excited by the first flux of light, which outputs a third flux of light of a second wavelength band; a retardation plate control unit that controls a rotation angle of the retardation plate in accordance with brightness information indicating brightness of the third flux of light; and a light-emitting element control unit that controls brightness of the light-emitting element in accordance with the brightness information and temperature information indicating a temperature of the light-emitting element.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: May 1, 2018
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takashi Toyooka, Tatsuya Iguchi
  • Publication number: 20170289507
    Abstract: A projector includes a light adjustment information determination section that determines light adjustment information in accordance with which light adjustment blocks of a light adjustment liquid crystal panel are controlled, in which the light adjustment liquid crystal panel has first pixel that modulate light based on image data inputted to an image I/F section and second pixel that modulate light based on parting pixel data, and the light adjustment information determination section determines, based on the parting pixel data, light adjustment information on light adjustment blocks that adjust light incident on the second pixel.
    Type: Application
    Filed: March 24, 2017
    Publication date: October 5, 2017
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Tatsuya IGUCHI
  • Publication number: 20170208300
    Abstract: A projector includes a light-emitting element that outputs light of a first wavelength band which is in a first polarization state; a retardation plate that converts a portion of the light into a second polarization state; a polarization separation element that separates the light from the retardation plate into a first flux of light in the first polarization state and a second flux of light in a second polarization state; a phosphor, excited by the first flux of light, which outputs a third flux of light of a second wavelength band; a retardation plate control unit that controls a rotation angle of the retardation plate in accordance with brightness information indicating brightness of the third flux of light; and a light-emitting element control unit that controls brightness of the light-emitting element in accordance with the brightness information and temperature information indicating a temperature of the light-emitting element.
    Type: Application
    Filed: January 17, 2017
    Publication date: July 20, 2017
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takashi TOYOOKA, Tatsuya IGUCHI
  • Publication number: 20170208303
    Abstract: A projector includes a light-emitting element that outputs light of a first wavelength band which is in a first polarization state; a retardation plate that converts a portion of the light into a second polarization state; a polarization separation element that separates the light into a first flux of light in the first polarization state and a second flux of light in a second polarization state; a phosphor, which outputs a third flux of light of a second wavelength band; an optical modulator that modulates the light in accordance with a video signal; a light-emitting element control unit that controls brightness of the light-emitting element in accordance with brightness information; and a retardation plate control unit that controls a rotation angle of the retardation plate in accordance with the brightness information.
    Type: Application
    Filed: January 17, 2017
    Publication date: July 20, 2017
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takashi TOYOOKA, Tatsuya IGUCHI
  • Publication number: 20170208308
    Abstract: A projector which modulates light emitted from a solid light source by an optical modulator and projects an image includes, a division unit which divides first light beams forming the image, a diffusion plate which diffuses one of the first light beams divided by the division unit, a first sensor which receives the light beams diffused by the diffusion plate, a second sensor which receives second light beams having a full width at the half maximum of a spectrum different from the first light beams and forming the image, an adjustment unit which adjusts a ratio of the first light beams to the second light beams according to a detection result of the first sensor and a detection result of the second sensor.
    Type: Application
    Filed: December 29, 2016
    Publication date: July 20, 2017
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Tatsuya IGUCHI, Takashi TOYOOKA
  • Patent number: 9361819
    Abstract: An image display device adapted to display an image based on an image signal includes a light source, an adjustment section adapted to adjust light intensity of a light emitted from the light source based on a feature amount related to a luminance of the image, a modulation section adapted to modulate the adjusted light based on the image signal, and a control section adapted to suppress reduction of the light intensity by the adjustment section in a case in which a predetermined condition related to temperature of the modulation section is satisfied.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: June 7, 2016
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Tatsuya Iguchi
  • Publication number: 20150022569
    Abstract: An image display device adapted to display an image based on an image signal includes a light source, an adjustment section adapted to adjust light intensity of a light emitted from the light source based on a feature amount related to a luminance of the image, a modulation section adapted to modulate the adjusted light based on the image signal, and a control section adapted to suppress reduction of the light intensity by the adjustment section in a case in which a predetermined condition related to temperature of the modulation section is satisfied.
    Type: Application
    Filed: July 14, 2014
    Publication date: January 22, 2015
    Inventor: Tatsuya IGUCHI
  • Patent number: 4927287
    Abstract: A fastener includes a female body and male body. By forcibly inserting the male body into a male body insertion hole of the female body, the two bodies are temporarily coupled together. By further inserting the male body into the female body from this state, leg portions of the female body are caused to flare outwardly so that overlapped plates are fastened together between the flared leg portions and a head portion of the female body. By further inserting the male body into the female body from this state, the leg portions are released from the flared state, so that the plates can be unfastened. When and only when the leg portions are inserted through a hole of a plate to be fastened by means of the fastener disposed in the temporarily coupled state, can the male body be further inserted within the female body so as to fasten the two plates to each other.
    Type: Grant
    Filed: June 20, 1989
    Date of Patent: May 22, 1990
    Assignee: NIFCO, Inc.
    Inventors: Toshiya Ohkawa, Hiromichi Nakayama, Tatsuya Iguchi
  • Patent number: 4920618
    Abstract: A clip for securing a first member to a second member includes a flange portion having an opening, an inserting portion, a pawl portion provided upon the inserting portion so as to be engageable with the flange portion and the second member, and a plurality of foldable coupling portions for connecting the inserting portion with the flange portion. The inserting portion is inserted through the first member in a first direction, then back downwardly into the opening of the flange portion and finally through the second member in a second direction, thereby securing the first member to the second member. When the inserting portion is inserted into the opening of the flange portion, the pawl portion engages the flange portion to retain the flange portion in engagement with the undersurface of the first member. When the inserting portion is further inserted through the second member, the pawl portion engages the second portion member so as to clamp the second member in cooperation with the flange portion.
    Type: Grant
    Filed: November 29, 1988
    Date of Patent: May 1, 1990
    Assignee: Nifco, Inc.
    Inventor: Tatsuya Iguchi
  • Patent number: 4916778
    Abstract: A plastic device for securing an automobile seat to an automobile panel includes a body and a lever arm. The body integrally has a leg-like lower portion open at the top, an upper portion united to the top of the leg-like portion, and upper and lower flange portions extending outwardly in a spaced-apart relation with respect to each other from the respective upper and lower ends of the upper portion. The lever arm is pivotally coupled to the upper and lower flange portions. The leg-like portion has engaging means for cooperating with the lower flange portion so as to clamp a portion of the automobile panel surrounding a hole through which the device is inserted. The upper portion of the body has a side hole.
    Type: Grant
    Filed: August 9, 1989
    Date of Patent: April 17, 1990
    Assignee: Nifco, Inc.
    Inventor: Tatsuya Iguchi
  • Patent number: 4874276
    Abstract: A fastener includes a cylindrical outer member and an insertion member. The cylindrical outer member has a cylindrical portion with an axial bore, and a flange portion provided at one end of the cylindrical portion. The cylindrical portion tapers toward the other end thereof and includes a plurality of arially extending notches, a plurality of inner projections formed upon inner surfaces of the end portion, and elastically deformable locking pieces projecting obliquely outwardly from an intermediate portion thereof toward the flange portion. The insertion member has a large-diameter portion for disposition within the axial bore of the cylindrical portion. The cylindrical portion is expanded radially outwardly by inserting the insertion member into the axial bore of the cylindrical outer member from the flange portion end thereof and by bringing the large-diameter portion into engagement with the inner projections of the cylindrical portion of the insertion member.
    Type: Grant
    Filed: September 7, 1988
    Date of Patent: October 17, 1989
    Assignee: Nifco, Inc.
    Inventor: Tatsuya Iguchi
  • Patent number: 4765036
    Abstract: There is disclosed a clip structure insertable through an apertured work piece for protecting coated surfaces of the work piece comprising a main clip body including resilient clip means adapted to be snapped through the aperture and a protecting cap having a dome into which the clip means may be inserted and further having lateral window means through which the clip means may at least partially project when in assembled relationship.
    Type: Grant
    Filed: January 7, 1987
    Date of Patent: August 23, 1988
    Assignee: Nifco, Inc.
    Inventors: Tatsuya Iguchi, Kunihiro Fukuhara, Tsutomu Kadomiya, Moritoshi Fukuda