Patents Assigned to Seiko Epson Corporation
  • Light source device and projector
    Patent number: 10845691
    Abstract: A light source device includes a light source section configured to emit first light, a light guide body configured to propagate a part of the first light, a wavelength conversion section including a phosphor which is excited by another part of the first light and transmitted though the light guide body, and emits second light, and a light combining section configured to combine the part of the first and second lights together. The light guide body includes a first and a second side surface opposed to each other, and the wavelength conversion section includes a third and a fourth side surface opposed to each other. The light source section is disposed at a position opposed to the first side surface, and the light guide body and wavelength conversion section are disposed in parallel to each other so that the second and third side surfaces are opposed to each other.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: November 24, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Junichi Suzuki, Hidefumi Sakata, Shingo Komiyama
  • Liquid ejection apparatus
    Patent number: 10843471
    Abstract: A liquid ejection apparatus comprises a carriage that includes a liquid ejection head and that moves inside a predetermined moving range, a plurality of liquid containers mounted on the carriage, the plurality of liquid containers including liquid refill ports respectively, an exterior member that covers the moving range, the exterior member including an opening configured to have a liquid outlet portion of the liquid refilling container be inserted therein, a selection information receiving portion that receives an input of a selected target liquid container, among the plurality of liquid containers, in which refilling of the liquid is to be performed, and a control unit that, using selection information that the selected information receiving portion has received, moves the carriage so that the liquid refill port of the target liquid container faces the opening.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: November 24, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Taku Ishizawa, Tadahiro Mizutani
  • Image reading apparatus and dirt detection method
    Patent number: 10848626
    Abstract: An image reading apparatus includes a reading section that receives light input via a transparent member to perform reading, a background section configured to switch a background facing the transparent member either to a first background that is a background of a first color or to a second background that is a background of a second color brighter than the first color, and a control section. The control section compares, with a threshold set in advance, first read data generated by causing the reading section to perform reading of the first background, compares, with the threshold, second read data generated by causing the reading section to perform reading of the second background, and, when the first read data is above the threshold or when the second read data is below the threshold, determines that dirt is present on the transparent member.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: November 24, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Daisuke Honda, Kohei Arai, Masahiko Mizoguchi
  • Liquid container and liquid consumption device
    Patent number: 10845730
    Abstract: A liquid container is configured to be fitted to the carriage of a liquid consumption device including the carriage where a head is provided and that jets, while making the carriage reciprocate, a liquid from the head so as to consume and stores the liquid to be supplied to the head. The liquid container includes: a liquid storage portion configured to store the liquid inside; an undulation reduction portion provided in the liquid storage portion and including a wall surface configured to reduce the undulation of the liquid and be directed in the direction of gravity in a fitting posture where the liquid container is fitted to the carriage; and a support portion configured to support the undulation reduction portion such that the undulation reduction portion is allowed to swing with the liquid and that the movement of the wall surface along the direction of gravity is restricted.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: November 24, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Naoki Naito, Ryota Takahashi
  • Light source device and projector
    Patent number: 10845685
    Abstract: A light source device has a light source unit including a base member and a plurality of light emitting devices held in the base member, a heat receiving plate including an opening portion, to which the base member is fixed to cover the opening portion, and a heat diffusion member in contact with the base member via the opening portion. Heat from the light source unit is transmitted to the heat receiving plate and the heat diffusion member.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: November 24, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Shin Aruga, Masato Kadotani, Kazuya Usuda
  • Sheet manufacturing apparatus and sheet manufacturing method
    Patent number: 10843386
    Abstract: A sheet manufacturing apparatus includes a web forming unit that forms a web in which at least fiber and resin are deposited in the air; a pressing unit that presses the web; and a heating and pressing unit that heats and presses the web on a further downstream side than the pressing unit in a transport direction of the web, in which a pressing force of the pressing unit is greater than a pressing force of the heating and pressing unit.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: November 24, 2020
    Assignee: Seiko Epson Corporation
    Inventor: Katsuhito Gomi
  • Relaying control commands across network boundaries
    Patent number: 10848638
    Abstract: A processing system includes a storage unit that receives and stores information on electronic equipment from an equipment control unit, and a command relay unit that receives a control command from an information processing unit that performs processing which is based on the information stored in the storage unit. The command relay unit transmits the control command along a second communication path that is different from a first communication path that is a communication path between the information processing unit and the equipment control unit with the storage unit in between, and thus performs relay of the control command between the information processing unit and the equipment control unit.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: November 24, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Hitoshi Yamakado, Tsuyoshi Kameda, Yusuke Nakajima
  • Electro-optical device and electronic device
    Patent number: 10847114
    Abstract: An electro-optical device includes a control circuit that controls the timing of output of a precharge voltage to a data line, and changes an elapsed time from start of transition of a voltage of a scanning signal G from a selection voltage to a non-selection voltage until an output of the precharge voltage to the data line according to a polarity of a data voltage, the voltage of the scanning signal for selecting one of multiple scanning lines, the selection voltage causing a pixel transistor to turn on, the non-selection voltage causing a pixel transistor to turn off.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: November 24, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Shinsuke Fujikawa
  • Exercise analysis device, exercise analysis method, program, recording medium, and exercise analysis system
    Patent number: 10843040
    Abstract: The sensor information acquisition unit acquires an angular velocity around an axis of a shaft portion of an exercise instrument from a sensor unit. An exercise analysis unit detects a timing of an impact of the exercise instrument. A calculation unit calculates a distance between a standard position set on a hitting surface of the exercise instrument and a position of the hitting based on the angular velocity at the time of an impact.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: November 24, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Masaki Ishikawa
  • Displaying error reports when print jobs and print settings are incompatible
    Patent number: 10846034
    Abstract: Problems may be caused by incompatibility between a print job and print settings. An image processing device controls displaying content by a display, and has a controller configured to determine whether or not a print job containing multiple image layers is compatible with a print setting, and displays an error report on the display when the print job and print setting are not compatible. The controller displays a first input field to receive a number of image layers as part of the print setting, and displays the error report when the number of image layers set according to an operation on the first input field is not compatible with the number of image layers contained in the print job.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: November 24, 2020
    Assignee: Seiko Epson Corporation
    Inventor: Yasutake Miyasaka
  • Sheet manufacturing apparatus, sheet manufacturing method, resin powder, and sheet
    Patent number: 10843373
    Abstract: A sheet manufacturing apparatus according to the invention has a mixing unit that mixes fiber and resin powder in air; and a sheet forming unit that forms a sheet by laying and heating the mixture mixed by the mixing unit; the grindability index of the resin contained in the resin powder being 0.8 or less.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: November 24, 2020
    Assignee: Seiko Epson Corporation
    Inventor: Yoshihiro Ueno
  • Liquid ejection head, liquid ejection device, and liquid ejection method
    Patent number: 10843460
    Abstract: A liquid ejection head configured to eject a liquid through nozzles includes plural head sections including a first head section and a second head section. Each of the plurality of head sections includes plural nozzle rows. One of the plural nozzle rows of the first head section is supplied with an undercoat-forming liquid containing an undercoat-forming pigment with an average particle diameter of at least 200 nm at a concentration of at least 7 percent by mass. Each of the plural nozzle rows of the second head section is supplied with an image-forming liquid containing an image-forming pigment with an average particle diameter of less than 200 nm at a concentration of less than 7 percent by mass.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: November 24, 2020
    Assignee: Seiko Epson Corporation
    Inventor: Toshiyuki Yamagata
  • DISPLAY DEVICE AND DISPLAY METHOD OF IMAGE
    Publication number: 20200363641
    Abstract: An image in a predetermined hue is displayed at a display surface, and is emitted as image light. The image light is guided to a display position by an optical system, and is deflected by a diffraction optical element. The emitted image light includes light emitted from a first position of the display surface and light emitted from a second position of the display surface. A deflection angle at which the light emitted from the first position is diffracted by the diffraction optical element is larger than a deflection angle at which the light emitted from the second position is diffracted by the diffraction optical element. Of the image light in a wavelength range expressing the hue, a wavelength peak of the light emitted from the first position is present on a long wavelength side with respect to a wavelength peak of the light emitted from the second position.
    Type: Application
    Filed: May 12, 2020
    Publication date: November 19, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Toshiyuki NOGUCHI
  • LIQUID CRYSTAL APPARATUS AND ELECTRONIC DEVICE
    Publication number: 20200363667
    Abstract: In a liquid crystal apparatus, a liquid crystal is provided in a cavity surrounded by a seal material between a first substrate and a second substrate, and the liquid crystal is aligned in a diagonal direction formed by corners 10a1, 10a3. Between a pixel area and the seal material, a first groove is formed along a side 20a6 from the corner 10a1 toward a corner 10a2. When a first pump is driven, the liquid crystal of the pixel area is drawn from a first end of the first groove on the corner 10a1 side, and the liquid crystal is ejected from a second end into the pixel area. As a result, a liquid crystal flow from the side of a side 20a7 toward the side of a side 20a9 occurs in the pixel area, and thus the liquid crystal can be smoothly circulated.
    Type: Application
    Filed: May 12, 2020
    Publication date: November 19, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Naoki TOMIKAWA
  • DISPLAY DEVICE, AND METHOD OF CONTROLLING DISPLAY DEVICE
    Publication number: 20200365068
    Abstract: A projector includes an image generation section adapted to generate a composite image including a first image based on a first image signal, a second image based on a second image signal, and a boundary line indicating a position to be a boundary between the first image and the second image, a projection section adapted to display the composite image generated by the image generation section on a screen, a position detection section adapted to detect a position of a pointing body with respect to the screen, and a control section adapted to make the image generation section generate a composite image with a boundary line moved based on the position of the pointing body detected by the position detection section.
    Type: Application
    Filed: August 5, 2020
    Publication date: November 19, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takahiro ANO, Koichiro OTA, Kazuyoshi KITABAYASHI, Kento YAMADA
  • LIQUID CRYSTAL APPARATUS AND ELECTRONIC DEVICE
    Publication number: 20200363668
    Abstract: In a liquid crystal apparatus, a liquid crystal is provided in a cavity surrounded by a seal material between a first substrate and a second substrate. Between a display area on an inner side of the seal material and the seal material, a circulation flow path coupled to the display area is constituted by the seal material and a partition. The partition is formed simultaneously with the seal material. The circulation flow path is provided with a forced circulation apparatus configured to forcibly cause the liquid crystal of the circulation flow path to flow. The circulation flow path has a higher adsorptivity for ions than the display area, and ionic impurities contained in the liquid crystal passing through the circulation flow path are removed from the liquid crystal in the circulation flow path.
    Type: Application
    Filed: May 12, 2020
    Publication date: November 19, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Shuhei YAMADA
  • ORGANIC ELECTROLUMINESCENT DEVICE AND ELECTRONIC APPARATUS
    Publication number: 20200365084
    Abstract: An electroluminescent device includes a light-emitting element, a drive transistor that supplies a driving current corresponding to a gradation voltage to the light-emitting element, a first conductive layer that is electrically connected to a gate of the drive transistor, and a second conductive layer that is supplied a fixed potential and that is disposed on a same layer as the first conductive layer. The first conductive layer and the second conductive layer are disposed apart and electrically insulated from one another, and in plan view, the first conductive layer is surrounded by the second conductive layer.
    Type: Application
    Filed: August 6, 2020
    Publication date: November 19, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Hitoshi OTA, Ryoichi NOZAWA
  • ELECTRO-OPTICAL DEVICE, ELECTRONIC APPARATUS, AND METHOD OF DRIVING ELECTRO-OPTICAL DEVICE
    Publication number: 20200365083
    Abstract: An electro-optical device includes a first data transfer line that intersects a scan line, a second data transfer line, a first transistor that controls coupling between the first data transfer line and the second transfer line. The two or more second data transfer lines are respectively coupled to the first data transfer line via first capacitors, and when a collection of pixel circuits that are coupled to the same first data transfer line via the second data transfer lines is referred to as a pixel string, the second data transfer lines are provided to pixel circuits less than the pixel circuits included in the pixel string.
    Type: Application
    Filed: August 5, 2020
    Publication date: November 19, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Hitoshi OTA, Takeshi KOSHIHARA
  • OPTICAL DEVICE, METHOD FOR CONTROLLING OPTICAL DEVICE, AND IMAGE DISPLAY APPARATUS
    Publication number: 20200363707
    Abstract: A method for controlling an optical device including a movable section including an optical section that refracts incident video image light in accordance with the angle of incidence of the video image light and outputs the refracted video image light and a holding section that supports the optical section, and an actuator that causes the movable section to swing, the method including applying a drive signal to the actuator to cause the movable section to swing. The drive signal is a trapezoidal wave having a trapezoidal waveform. Each leg section of the trapezoidal wave is formed of a first leg section and a second leg section connected to the first leg section. The inclination of the second leg section respect to the flat section of the trapezoidal wave is smaller than the inclination of the first leg section with respect to the flat section of the trapezoidal wave.
    Type: Application
    Filed: May 15, 2020
    Publication date: November 19, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Takao HIRAKURA
  • Changing specification of operation based on start position
    Patent number: 10838550
    Abstract: An electronic apparatus includes a display, a change unit, and a specification unit. The change unit changes a specification algorithm for specifying an operation with respect to the display according to a start position of the operation. The specification unit specifies the operation based on the specification algorithm.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: November 17, 2020
    Assignee: Seiko Epson Corporation
    Inventor: Tatsuya Sugahara