Patents Assigned to Seiko Epson Corporation
  • Publication number: 20240248309
    Abstract: A virtual image display device includes: a light modulation element including a liquid crystal pixel and a light-transmitting region, a light-blocking member arranged at the external side of the light modulation element, a light-guiding member arranged between the light-blocking member and the light modulation element , a first polarizing plate arranged between the light-guiding member and the light-transmitting region to polarized light in a first polarization direction, a second polarizing plate arranged at the face side of the light modulation element and including a polarizing film as a polarizing region provided corresponding to the liquid crystal pixel, the polarizing film being configured to restrict image light emitted from the liquid crystal pixel to polarized light in a second polarization direction, and a polarization separation lens element arranged at the face side of the second polarizing plate that functions with respect to polarized light of the image light.
    Type: Application
    Filed: January 18, 2024
    Publication date: July 25, 2024
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Takashi TAKEDA
  • Publication number: 20240249654
    Abstract: In a first operation, in a tournament circuit, any one row of data lines is selected according to a selection signal, and a voltage of the selected data line is output to a test output terminal via an amplifier. In a second operation, a selection circuit in a first layer in the tournament circuit is in an off state between all the data lines and an input end of a selection circuit in a second layer.
    Type: Application
    Filed: January 24, 2024
    Publication date: July 25, 2024
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Tsuyoshi Tamura
  • Publication number: 20240249117
    Abstract: A state classification method includes: acquiring measurement data of a physical quantity related to vibration measured for a vibrating device; outputting, by a deep learning model that includes an encoder and a decoder using a recurrent neural network and performs deep learning for predicting a future value of the measurement data for the device, an intermediate feature of the vibration from the encoder based on the measurement data; and classifying a state of the device using information based on the intermediate feature.
    Type: Application
    Filed: January 17, 2024
    Publication date: July 25, 2024
    Applicants: University Public Corporation Osaka, SEIKO EPSON CORPORATION
    Inventors: Masayoshi TODOROKIHARA, Keishi OMORI, Ryoya ONISHI, Michifumi YOSHIOKA, Katsufumi INOUE
  • Publication number: 20240248307
    Abstract: A head-mounted display apparatus includes: a first projection optical system that irradiates a first scattering region with image light, a second projection optical system that irradiates a second scattering region with the image light, a first polarizing member arranged at a face side of the scattering member and including a first polarizing region provided corresponding to the first scattering region and the second scattering region for restricting the image light scattered by the scattering member to a first polarization direction, a second polarizing member arranged at an external side of a position of the first polarizing member and including a second polarizing region for restricting the external light to a second polarization direction, and a polarization separation lens element arranged at a face side of the first polarizing member and having refractive power that selectively acts on polarized light of the image light.
    Type: Application
    Filed: January 17, 2024
    Publication date: July 25, 2024
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Takashi TAKEDA
  • Publication number: 20240248350
    Abstract: An electro-optical device is an display device provided with a display region for displaying an image and a peripheral region provided outside the display region, and includes a first substrate including a plurality of pixel electrodes provided in the display region, a second substrate including a counter electrode facing the plurality of pixel s, a seal member being provided in the peripheral region, and containing a UV-curable material, and an electro-optical layer being arranged in a region surrounded by at the first substrate, the second substrate, and the seal member and having optical characteristics that change in accordance with an electric field, wherein one substrate of the first substrate and the second substrate includes a non-conductive region that overlaps with the seal member in plan view, is in the same layer as the plurality of pixel electrodes or the counter electrode, and is not provided with a film having conductivity.
    Type: Application
    Filed: January 22, 2024
    Publication date: July 25, 2024
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Masahito YOSHII
  • Publication number: 20240248308
    Abstract: A virtual image display device includes: a scattering member including a scattering region for scattering image light as a pixel display region, a projection optical system configured to irradiate the scattering region with the image light, a light-blocking member arranged at an external side of the scattering member and configured to suppress incidence of external light on the scattering region, a first polarizing member arranged at a face side of the scattering member and including a first polarizing region provided corresponding to the scattering region, a second polarizing member arranged at an external side of a position of the first polarizing member and including a second polarizing region for restricting the external light to a second polarization direction, and a polarization separation lens element arranged at a face side of the first polarizing member and having refractive power that selectively acts on polarized light of the image light.
    Type: Application
    Filed: January 17, 2024
    Publication date: July 25, 2024
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Takashi TAKEDA
  • Publication number: 20240248306
    Abstract: A virtual image display device includes: a display member including a wavelength-converting region that emits fluorescence upon being excited by image light as a pixel display region, a projection optical system that irradiates the wavelength-converting region with the image light, a light-blocking member arranged at the external side of the display member for suppressing incidence of external light on the wavelength-converting region, a first polarizing member arranged at the face side of the display member and including a first polarizing region, a second polarizing member arranged at the external side of a position of the first polarizing member and including a second polarizing region for restricting the external light to a second polarization direction, and a polarization separation lens element arranged at the face side of the first polarizing member and having refractive power that selectively acts on polarized light of the image light.
    Type: Application
    Filed: January 17, 2024
    Publication date: July 25, 2024
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Takashi TAKEDA
  • Patent number: 12042968
    Abstract: A plasticizing device includes: a drive motor; a screw shaft rotated by the drive motor; a flat screw having a coupling surface coupled to the screw shaft and a groove forming surface in which a groove is formed, and configured to rotate around the screw shaft; a barrel having a facing surface facing the groove forming surface, and formed with a communication hole; a heating unit configured to heat a material supplied to between the flat screw and the barrel; and a bearing part configured to rotatably support the screw shaft and receive a thrust load applied to the screw shaft from the flat screw. The groove forming surface and the facing surface are separated from each other at a predetermined interval.
    Type: Grant
    Filed: July 28, 2022
    Date of Patent: July 23, 2024
    Assignee: Seiko Epson Corporation
    Inventor: Masayuki Gozu
  • Patent number: 12043029
    Abstract: A liquid ejecting head includes: a first pressure chamber to which a first liquid is supplied; a first drive element that applies pressure to the first liquid in the first pressure chamber; a second pressure chamber to which a second liquid is supplied; a second drive element that applies pressure to the second liquid in the second pressure chamber; a nozzle channel which has one end communicating with the first pressure chamber and another end communicating with the second pressure chamber and in which the first liquid supplied from the first pressure chamber and the second liquid supplied from the second pressure chamber are mixed; and a nozzle that is provided in the nozzle channel and ejects a mixture of the first liquid and the second liquid.
    Type: Grant
    Filed: December 27, 2021
    Date of Patent: July 23, 2024
    Assignee: Seiko Epson Corporation
    Inventors: Takanori Aimono, Eiju Hirai, Akinori Taniuchi, Shotaro Tamai
  • Patent number: 12043044
    Abstract: A three-dimensional object printing apparatus includes: a head having a nozzle surface; a robot that has a base portion that supports the head, and changes a position of the head with respect to the base portion; and a cap portion having a fixed position to the base portion to cover the nozzle surface, in which the three-dimensional object printing apparatus is configured to execute: a capping operation of causing the robot to locate the head at a position at which the nozzle surface is covered with the cap portion, and a printing operation of causing the head to eject the liquid to a work with respect to the work, and a yaw angle of the head during the execution of the capping operation and a yaw angle of the head during the execution of the printing operation are different from each other.
    Type: Grant
    Filed: March 8, 2022
    Date of Patent: July 23, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Shinichi Nakamura, Yuta Abe, Yuichiro Matsuura, Yuki Ishii
  • Patent number: 12043040
    Abstract: A cartridge, that can reduce the diameter of a winding core, to be installed in a tape printing device includes: a cartridge case that constitutes an outer shell of the cartridge and accommodates a printing tape, a tape core on which the printing tape is wound, an ink ribbon, and a winding core; a core concave part on the cartridge case and into which a core convex part is inserted from a back side in an installation direction when the cartridge is installed in a cartridge installation part; and a cartridge-side first engagement part and a cartridge-side second engagement part that engage a device-side first engagement part and a device-side second engagement part, respectively, when the core convex part is inserted into the core concave part to change a state of a torque switching mechanism from a second to a first state or from the first to the second state.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: July 23, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Taishi Sasaki, Shinsaku Kosuge, Akio Ishimoto
  • Patent number: 12043043
    Abstract: A recording system includes a printer, a post-processing apparatus, and a first support to be mounted on a floor outside a mounting area of the printer. The printer includes a manual feed tray and an opening/closing portion each configured to be moved outward from a body of the printer to enable a process. The post-processing apparatus is located, in a Z direction, above the manual feed tray and the opening/closing portion that were moved. The first support supports the post-processing apparatus and forms a space in which the manual feed tray and the opening/closing portion are moved.
    Type: Grant
    Filed: July 26, 2022
    Date of Patent: July 23, 2024
    Assignee: Seiko Epson Corporation
    Inventors: Masaki Miyazawa, Chiaki Endo, Hirohisa Adachi
  • Patent number: 12043033
    Abstract: A liquid ejecting head includes a first drive circuit including a switching element that selects, from a plurality of drive elements, a drive element to which a drive signal for ejection of liquid through a nozzle is sent, a case defining a first accommodating portion that is a space accommodating the first drive circuit, and a first gas supply passage that is in communication with the first accommodating portion and through which gas is supplied to the first accommodating portion.
    Type: Grant
    Filed: May 20, 2022
    Date of Patent: July 23, 2024
    Assignee: Seiko Epson Corporation
    Inventors: Hiroki Miyajima, Kazuya Tajima, Yuji Shingu, Yasuyuki Kudo
  • Patent number: 12046592
    Abstract: In a static electricity protection circuit, an N+ embedded region is provided, extending over an upper surface of a P-type P semiconductor substrate. One N?-semiconductor region, another N?-semiconductor region, and an N? common impurity region are provided in an upward direction from the N+ embedded region. The one N?-semiconductor region and the other N?-semiconductor region are coupled together via the N? common impurity region. A P? impurity region is provided in the upward direction from the one N?-semiconductor region. Another P? impurity region is provided in the upward direction from the other N?-semiconductor region. A diode formed by the one P? impurity region and the one N?-semiconductor region and a diode formed by the other P? impurity region and the other N?-semiconductor region are coupled in opposite directions to each other via the N? common impurity region.
    Type: Grant
    Filed: January 18, 2022
    Date of Patent: July 23, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Masuhide Ikeda
  • Patent number: 12044572
    Abstract: A color measurement apparatus includes an opening portion forming member that is a member in which an opening portion for causing light arriving from a measurement target to enter inside the apparatus is formed, and that is arranged on a bottom surface at a time of measurement performed by the apparatus, an incident light processing portion that processes light incident through the opening portion, and a shutter unit configured to be displaced between a closed position at which the opening portion is covered, in which the shutter unit includes a shutter member that closes the opening portion when the shutter unit is at the closed position, a shutter holding member that holds the shutter member such that the shutter member is configured to be displaced in a direction of approaching to and separating from the opening portion, and a pressing member that presses the shutter member toward the opening portion.
    Type: Grant
    Filed: November 12, 2021
    Date of Patent: July 23, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Kenichi Furuya, Haruki Miyasaka, Hisayuki Akahane
  • Patent number: 12044571
    Abstract: An autofocusing method includes causing light having n wavelengths different from one another to sequentially pass through a spectral filter and acquiring n image frames corresponding to the n wavelengths, n being an integer greater than or equal to two, selecting a wavelength corresponding to the image frame having the largest statistical value from the n image frames, the statistical value being one of the average, median, and mode of class values of pixels contained in a first region out of entire measurement pixels in each of the image frames, and determining a focusing point in a second region wider than the first region out of the entire measurement pixels while causing the light having the selected wavelength to pass through the spectral filter.
    Type: Grant
    Filed: June 8, 2022
    Date of Patent: July 23, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Takeshi Nozawa
  • Patent number: 12042965
    Abstract: An injection molding system includes a main unit in which a first injection molding machine that injects a first molding material and molds a molded article is disposed and a control unit separated from the main unit and configured to control the first injection molding machine. The control unit is coupled to the main unit via a connection cable having predetermined length.
    Type: Grant
    Filed: September 27, 2022
    Date of Patent: July 23, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hidenobu Maruyama, Kenta Anegawa
  • Patent number: 12045520
    Abstract: A display control device includes a progress acquirer that acquires progress of a plurality of processes for generating print products, a subdivision progress acquirer that acquires, in at least one of the plurality of processes, progress of subdivided processes obtained by subdividing the process, a process display that displays the plurality of processes on a display device so that at least one of the processes being executed is distinguishable, and a subdivided process display that displays the subdivided processes on the display device so that at least one of the subdivided processes being executed is distinguishable.
    Type: Grant
    Filed: August 29, 2023
    Date of Patent: July 23, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Ryota Hara
  • Patent number: 12046415
    Abstract: A method for manufacturing a dust core, includes: applying energy to a surface of a soft magnetic powder coated with an insulating body containing a compound having an aluminum-oxygen bond; exposing the soft magnetic powder to an atmosphere having a dew point of ?30° C. or higher and 15° C. or lower under an atmospheric pressure; and forming a molded product by pressing the soft magnetic powder at 20 MPa or more and 400 MPa or less.
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: July 23, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Yasutaka Matsumoto, Sukenori Ichikawa
  • Patent number: 12044852
    Abstract: A virtual image display apparatus according to the present disclosure includes a first display module, a second display module, and a coupling portion having an adjustable structure. The adjustable structure adjusts the first display module with respect to the second display module at least a relative rotational position and relative positions in longitudinal and depth directions.
    Type: Grant
    Filed: October 28, 2021
    Date of Patent: July 23, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Toshiyuki Noguchi, Takashi Takeda