Patents by Inventor Akihiro Toya

Akihiro Toya 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: 9634768
    Abstract: An optical communication device has a Mach-Zehnder optical modulator; a monitor configured to monitor a modulated light output from the optical modulator; a first controller configured to set a substrate bias voltage or an amplitude of a drive signal applied to the first waveguide of a waveguide pair of the optical modulator to a desired level that provides a first modulation index; and a second controller configured to control a substrate bias voltage or an amplitude of the drive signal applied to the second waveguide of the waveguide pair based upon an output signal from the monitor such that a second modulation index for the second waveguide becomes the same or closer to the first modulation index set for the first waveguide.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: April 25, 2017
    Assignee: FUJITSU OPTICAL COMPONENTS LIMITED
    Inventor: Akihiro Toya
  • Patent number: 9610782
    Abstract: A drying device for drying a medium that has had a liquid ejected thereon includes a guide that the medium that has had the liquid ejected thereon abuts against, a tension control section that is capable of providing tension to the medium that is abutted against the guide, a heating section capable of heating the medium, and a cooling section capable of cooling the medium that has been heated by the heating section, wherein the tension control section is capable of generating a pressing force that presses the medium against the guide, and the heating by the heating section and the cooling by the cooling section are performed on the medium while the tension and the pressing force are being applied to the medium.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: April 4, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Akihiro Toya, Jun Yamada
  • Publication number: 20170028750
    Abstract: An image recording device includes a drive roller, a driven roller, a recording unit and a control unit. The driven roller is configured and arranged with respect to the drive roller so that the recording medium is grasped between the drive roller and the driven roller. The recording unit is configured and arranged to record an image on the recording medium arranged further to a downstream side than the drive roller in a first direction. When the control unit stops conveying of the recording medium in the first direction, the control unit is configured to stop conveying of the recording medium in a state in which an area of the recording medium different from an area, in which the image is planned to be recorded after a timing at which conveying of the recording medium is stopped, is in contact with the driven roller.
    Type: Application
    Filed: October 18, 2016
    Publication date: February 2, 2017
    Inventors: Atsushi IMAMURA, Akihiro TOYA
  • Patent number: 9550376
    Abstract: A printing apparatus includes a dryer that heats and dries a print base material on which a print image is formed in a printing unit. The dryer includes a rotational drum that supports and transports the print base material, and a blower unit that blows hot air to the print base material supported by the rotational drum. The dryer includes a movement unit that displaces the blower unit to a first position which allows the print base material to be heated and to a second position which is away from the print base material while maintaining the blower unit in operation.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: January 24, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Jun Yamada, Akihiro Toya
  • Patent number: 9527309
    Abstract: Provided is a liquid discharging apparatus that includes a supporting portion that supports a medium, a liquid discharging portion that discharges liquid onto the medium which is transported on the supporting portion, and a drying portion that has a drying path through which the medium passes and dries the liquid landing on the medium, in which a length of the drying path is variable.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: December 27, 2016
    Assignee: Seiko Epson Corporation
    Inventor: Akihiro Toya
  • Patent number: 9499368
    Abstract: An image recording device includes a drive roller, a driven roller, a recording unit and a control unit. The driven roller is configured and arranged with respect to the drive roller so that the recording medium is grasped between the drive roller and the driven roller. The recording unit is configured and arranged to record an image on the recording medium arranged further to a downstream side than the drive roller in a first direction. When the control unit stops conveying of the recording medium in the first direction, the control unit is configured to stop conveying of the recording medium in a state in which an area of the recording medium different from an area, in which the image is planned to be recorded after a timing at which conveying of the recording medium is stopped, is in contact with the driven roller.
    Type: Grant
    Filed: October 15, 2015
    Date of Patent: November 22, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Atsushi Imamura, Akihiro Toya
  • Patent number: 9448458
    Abstract: An optical communication device has a pair of Mach-Zehnder optical modulators; a voltage monitor configured to monitor a voltage component acquired by optical-to-electric conversion of combined light output from the Mach-Zehnder optical modulators; a power monitor configured to monitor a power component acquired by square law detection of the optical-to-electric converted combined light from the Mach-Zehnder optical modulators; a first controller configured to control a substrate bias voltage or a driving amplitude applied to one of two waveguides of each of the Mach-Zehnder optical modulators based upon an output of the power monitor, and a second controller configured to control the substrate bias voltage or the driving amplitude applied to the other of the two waveguides of each of the Mach-Zehnder optical modulator based upon an output of the voltage monitor.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: September 20, 2016
    Assignee: FUJITSU OPTICAL COMPONENTS LIMITED
    Inventors: Hiroshi Nishimoto, Akihiro Toya
  • Patent number: 9387697
    Abstract: A liquid discharge apparatus includes a support that supports a medium; a head that discharges liquid to the medium transported onto the support; and a drying portion that dries the liquid that has landed on the medium. The liquid discharge apparatus has a heated area and a non-heated area. The drying portion is disposed in the heated area, and the support and the head are disposed in the non-heated area.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: July 12, 2016
    Assignee: Seiko Epson Corporation
    Inventor: Akihiro Toya
  • Patent number: 9375957
    Abstract: An image recording device includes a drive roller that conveys a recording medium by rotating, a driven roller that grasps the recording medium between it and the drive roller, a recording unit capable of recording an image on the recording medium arranged further to the downstream side than the drive roller in a first direction which is the recording media conveyance direction, and a control unit that records an image on the recording media while conveying the recording media in the first direction. The control unit, when the conveying of the recording media in the first direction stops, starts conveying the recording media in a second direction which is the reverse direction of the first direction, and stops conveying of the recording media in the second direction in a state with the image recorded on the recording media positioned between the drive roller and the driven roller.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: June 28, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Atsushi Imamura, Akihiro Toya
  • Publication number: 20160167403
    Abstract: A drying apparatus includes: a heat drying section that heats a medium to which a liquid has been applied from a first surface side of the medium; a temperature adjusting section that adjusts a temperature of the medium from a second surface side of the medium, the second surface being on the opposite side to the first surface; and a control section capable of controlling the heat drying section and the temperature adjusting section. The control section controls the heat drying section and the temperature adjusting section individually in accordance with the type of the medium.
    Type: Application
    Filed: December 8, 2015
    Publication date: June 16, 2016
    Inventors: Akihiro TOYA, Jun YAMADA
  • Publication number: 20160147129
    Abstract: An optical communication device has a pair of Mach-Zehnder optical modulators; a voltage monitor configured to monitor a voltage component acquired by optical-to-electric conversion of combined light output from the Mach-Zehnder optical modulators; a power monitor configured to monitor a power component acquired by square law detection of the optical-to-electric converted combined light from the Mach-Zehnder optical modulators; a first controller configured to control a substrate bias voltage or a driving amplitude applied to one of two waveguides of each of the Mach-Zehnder optical modulators based upon an output of the power monitor, and a second controller configured to control the substrate bias voltage or the driving amplitude applied to the other of the two waveguides of each of the Mach-Zehnder optical modulator based upon an output of the voltage monitor.
    Type: Application
    Filed: November 24, 2015
    Publication date: May 26, 2016
    Applicant: FUJITSU OPTICAL COMPONENTS LIMITED
    Inventors: Hiroshi Nishimoto, AKIHIRO TOYA
  • Publication number: 20160144633
    Abstract: A drying device for drying a medium that has had a liquid ejected thereon includes a guide that the medium that has had the liquid ejected thereon abuts against, a tension control section that is capable of providing tension to the medium that is abutted against the guide, a heating section capable of heating the medium, and a cooling section capable of cooling the medium that has been heated by the heating section, wherein the tension control section is capable of generating a pressing force that presses the medium against the guide, and the heating by the heating section and the cooling by the cooling section are performed on the medium while the tension and the pressing force are being applied to the medium.
    Type: Application
    Filed: November 17, 2015
    Publication date: May 26, 2016
    Inventors: Akihiro TOYA, Jun YAMADA
  • Publication number: 20160121624
    Abstract: A printing apparatus includes a dryer that heats and dries a print base material on which a print image is formed in a printing unit. The dryer includes a rotational drum that supports and transports the print base material, and a blower unit that blows hot air to the print base material supported by the rotational drum. The dryer includes a movement unit that displaces the blower unit to a first position which allows the print base material to be heated and to a second position which is away from the print base material while maintaining the blower unit in operation.
    Type: Application
    Filed: November 2, 2015
    Publication date: May 5, 2016
    Inventors: Jun YAMADA, Akihiro TOYA
  • Publication number: 20160114601
    Abstract: An image recording device includes a drive roller, a driven roller, a recording unit and a control unit. The driven roller is configured and arranged with respect to the drive roller so that the recording medium is grasped between the drive roller and the driven roller. The recording unit is configured and arranged to record an image on the recording medium arranged further to a downstream side than the drive roller in a first direction. When the control unit stops conveying of the recording medium in the first direction, the control unit is configured to stop conveying of the recording medium in a state in which an area of the recording medium different from an area, in which the image is planned to be recorded after a timing at which conveying of the recording medium is stopped, is in contact with the driven roller.
    Type: Application
    Filed: October 15, 2015
    Publication date: April 28, 2016
    Inventors: Atsushi IMAMURA, Akihiro TOYA
  • Publication number: 20160114598
    Abstract: A printing apparatus includes a rotating drum which rotates by winding the printing base material around a circumferential side surface, and through which the printing base material is transported in the transporting direction; a recording portion which forms a printed image with respect to the printing base material on the rotating drum; and a driven roller which is positioned to be closer to a downstream side than the recording portion in the transporting direction, and rotates together with the rotating drum. The driven roller is disposed at a position for regulating a terminal position of the transporting direction in which the printing base material is wound in the rotating drum. The driven roller comes into contact with the printing base material at positions on both sides in a direction which intersects with the transporting direction of a region where the recording portion forms the printed image.
    Type: Application
    Filed: October 23, 2015
    Publication date: April 28, 2016
    Inventors: Shinji KAWAKAMI, Akihiro TOYA
  • Publication number: 20160114997
    Abstract: A transporting device includes a first driving roller which transports the base material; a second driving roller which is disposed to be closer to a downstream side of the transporting direction than the first driving roller, and transports the base material; a driven roller which nips the base material between the second driving roller and the driven roller, and rotates together with the second driving roller; and an inter-roller transporting path which is provided between the first driving roller and the second driving roller, and through which the base material is transported in a state where the base material is suspended in a direction of gravity and bent. The second driving roller starts winding the base material at a position which is closer to an upstream side of the transporting direction than a position where the driven roller is in contact with the base material.
    Type: Application
    Filed: October 21, 2015
    Publication date: April 28, 2016
    Inventors: Shinji KAWAKAMI, Akihiro TOYA, Masaru JINGUSHI
  • Patent number: 9302477
    Abstract: Provided is a printing apparatus including a head and a control unit. The head ejects, onto a printing medium, an image forming liquid for forming an image and an ancillary liquid ancillary to forming of the image performed by the image forming liquid. The control unit performs control so as to cause the head to perform a first operation of ejecting the image forming liquid onto a first region of the printing medium, and a second operation of ejecting the ancillary liquid onto a second region of the printing medium, the second region being different from the first region. Further, the control unit performs control so as to cause the head to perform the second operation in an anterior pass and perform the first operation in a posterior pass.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: April 5, 2016
    Assignee: Seiko Epson Corporation
    Inventor: Akihiro Toya
  • Publication number: 20160065310
    Abstract: An optical communication apparatus includes an optical modulator having a Mach-Zehnder interferometer with a pair of waveguides and configured to modulate a phase of light emitted from a light source, a first controller configured to control a first substrate bias voltage or an amplitude of a first drive signal applied to a first waveguide of the waveguide pair of the optical modulator based upon an output of the optical modulator or a wavelength of the light source; and a second controller configured to control a second substrate bias voltage or an amplitude of a second drive signal applied to a second waveguide of the waveguide pair of the optical modulator independently from the first controller, based upon the output of the optical modulator or the wavelength of the light source.
    Type: Application
    Filed: July 28, 2015
    Publication date: March 3, 2016
    Applicant: FUJITSU OPTICAL COMPONENTS LIMITED
    Inventor: Akihiro TOYA
  • Publication number: 20160056896
    Abstract: An optical communication device includes an optical modulator of a Mach-Zehnder type, a low frequency superimposing circuit configured to superimpose a low frequency signal on a substrate bias voltage applied to the optical modulator, a monitor configured to monitor a modulated light output from the optical modulator, and a substrate bias controller configured to control the substrate bias voltage based upon a low frequency component contained in a monitor signal output from the monitor.
    Type: Application
    Filed: July 28, 2015
    Publication date: February 25, 2016
    Applicant: Fujitsu Optical Components Limited
    Inventor: Akihiro TOYA
  • Publication number: 20160056897
    Abstract: An optical communication device has a Mach-Zehnder optical modulator; a monitor configured to monitor a modulated light output from the optical modulator; a first controller configured to set a substrate bias voltage or an amplitude of a drive signal applied to the first waveguide of a waveguide pair of the optical modulator to a desired level that provides a first modulation index; and a second controller configured to control a substrate bias voltage or an amplitude of the drive signal applied to the second waveguide of the waveguide pair based upon an output signal from the monitor such that a second modulation index for the second waveguide becomes the same or closer to the first modulation index set for the first waveguide.
    Type: Application
    Filed: July 29, 2015
    Publication date: February 25, 2016
    Applicant: FUJITSU OPTICAL COMPONENTS LIMITED
    Inventor: Akihiro TOYA