Patents Assigned to Seiko Epson Corporation
  • Publication number: 20210135191
    Abstract: A positive electrode active material composite body according to the present disclosure includes a positive electrode active material containing a transition metal element and having a particulate shape, and an ion conductor provided in contact with a surface of the positive electrode active material, wherein the ion conductor is constituted by a material containing Li, Zr, and M which is at least one type of element selected from the group consisting of Nb, Sb, and Ta, the transition metal element is partially diffused in the ion conductor, and an average decrease ratio of a content ratio of the transition metal element until a point where the content ratio of the transition metal element in the ion conductor to be determined by a characteristic X-ray has reached 12% of the content ratio of the transition metal element at an interface between the positive electrode active material and the ion conductor based on a substance amount is 0.5% or more and 6.1% or less per 1 nm thickness from the interface.
    Type: Application
    Filed: November 4, 2020
    Publication date: May 6, 2021
    Applicant: Seiko Epson Corporation
    Inventors: Tomofumi YOKOYAMA, Hitoshi YAMAMOTO, Tsutomu TERAOKA, Naoyuki TOYODA
  • Publication number: 20210132889
    Abstract: The display system includes a host apparatus and an HMD. The host apparatus includes an image display unit configured to display, an image transmitted from the host apparatus, in which the image processing unit is configured, when detecting that the host apparatus is connected with the HMD, to associate first sensor data from the first inertial sensor with second sensor data received from the second inertial sensor, to recognize a target in the image captured by the camera, to use the second sensor data to perform image processing, and to cause the image display unit to display the image after the image processing in association with the target, when detecting that the host apparatus is not connected with the HMD, to use the first sensor data to maintain an estimation of a state of the target in the outside scene until the host apparatus is reconnected with the HMD.
    Type: Application
    Filed: October 26, 2020
    Publication date: May 6, 2021
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Shinya SATO
  • Publication number: 20210132386
    Abstract: When an image is displayed on two display units provided corresponding to both eyes of a user, an interpupillary distance of the user is acquired, an original image is modified according to a difference between the interval of the two display units and the acquired interpupillary distance, and the two display units are caused to display a modified image that was modified.
    Type: Application
    Filed: October 26, 2020
    Publication date: May 6, 2021
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Fusashi KIMURA
  • Publication number: 20210132483
    Abstract: A wavelength converter according to the present disclosure includes a wavelength conversion layer that has a first surface and a second surface, converts first light that belongs to a first wavelength band into second light that belongs to a second wavelength band, and emits the second light via the first surface, a transparent member having a third surface and a fourth surface, the third surface so provided as to face the first surface of the wavelength conversion layer, and a plurality of nano-antennas provided on the fourth surface of the transparent member. The wavelength conversion layer contains light scatterers, and the plurality of nano-antennas selectively emit third light that belongs to a specific wavelength band out of the second wavelength band along the direction of a normal to the fourth surface.
    Type: Application
    Filed: October 30, 2020
    Publication date: May 6, 2021
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Osamu OKUMURA
  • Publication number: 20210129551
    Abstract: The printing system includes a liquid supply container that stores a liquid; a printing device that receives a liquid supplied from the liquid supply container and performs printing; an imaging device that acquires image information including at least a part of the liquid supply container; an acquisition section that acquires reference information; a determination section that collates the image information with the reference information and determines whether or not the liquid is allowed to be supplied according to a collation result; and a control section that controls the printing device according to the determination.
    Type: Application
    Filed: October 29, 2020
    Publication date: May 6, 2021
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Tadahiro MIZUTANI, Taku ISHIZAWA, Ryoichi TANAKA
  • Publication number: 20210132398
    Abstract: A head-mounted display includes an optical device that is an image light generating device that forms a virtual image, and a support device that includes a pair of temples and supports the image light generating device from above. The temple includes a contact unit coupled to a main body of the temple by a universal joint, and causes the contact unit to come into contact with a flat portion, for example.
    Type: Application
    Filed: October 26, 2020
    Publication date: May 6, 2021
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Takeshi FUJISHIRO
  • Publication number: 20210129546
    Abstract: A lever provided in a liquid storage apparatus that includes a liquid filling port, the lever including a first member that is pivotable relative to an apparatus body of the liquid storage apparatus, a second member that is pivotable relative to the first member, and a flexible sealing plug that seals the liquid filling port, the first member including a lever body on which the sealing plug is mounted, a first attaching portion provided on a first end of the lever body, the first attaching portion configured to pivotably engage with the apparatus body, and a second attaching portion provided on a second end of the lever body, the second attaching portion configured to pivotably engage with the second member.
    Type: Application
    Filed: October 29, 2020
    Publication date: May 6, 2021
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Shoma KUDO, Naomi KIMURA
  • Publication number: 20210129541
    Abstract: An ink absorption member is to be used to absorb ink. The ink absorption member includes a fiberized material and a liquid-absorbent resin. The fiberized material includes a fiber. In the ink absorption member, a content of the liquid-absorbent resin is greater than 5 wt. % and 90 wt. % or less relative to a weight of the fiber. Furthermore, it is preferable that a bulk density of the ink absorption member of the present invention be 0.01 g/cm3 or greater and 0.3 g/cm3 or less.
    Type: Application
    Filed: December 27, 2018
    Publication date: May 6, 2021
    Applicant: Seiko Epson Corporation
    Inventor: Yoichi MIYASAKA
  • Publication number: 20210132391
    Abstract: A change amount of illuminance of a luminescent color by a light-emitting element is acquired, and based on the change amount acquired for each luminescent color, drive power to be supplied to the light-emitting element of each luminescent color is calculated in order to reduce the change amount. In addition, light emission of each light-emitting element of each luminescent color is controlled with the calculated drive power to control display of the display unit.
    Type: Application
    Filed: October 28, 2020
    Publication date: May 6, 2021
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Atsushi Amano
  • Publication number: 20210132118
    Abstract: A control device configured to communicate with a first projector which projects a first image in a first projection area, and a second projector which projects a second image in a second projection area having a first overlap area overlapping the first projection area to make the first projector and the second projector perform an edge blending process includes a reception section for receiving input of designation information including a direction in which an overlap width, a generation section for generating first overlap information including information representing first side in the first overlap area and information representing the overlap width of the first overlap area, and second overlap information including information representing second side in the first overlap area and the information, and a transmission section for transmitting the first overlap information to the first projector, and the second overlap information to the second projector.
    Type: Application
    Filed: December 29, 2020
    Publication date: May 6, 2021
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Akihiko OTA, Yusuke KUDO
  • Publication number: 20210134007
    Abstract: A non-transitory computer readable medium storing instructions to cause one or more processors to acquire an image data sequence containing images of an object in a scene along time and track a pose of the object through an object pose tracking algorithm. The processor may further, acquire a first pose of the object in a first image of the image data sequence, the first pose being a result of tracking a pose of the object through an object pose tracking algorithm, verify the first pose, extract 2D features of the object from the first image when the first pose is verified, and store a training dataset containing the extracted 2D features and the corresponding verified first pose in the one or more memories or other one or more memories.
    Type: Application
    Filed: July 13, 2020
    Publication date: May 6, 2021
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Mirza Tahir AHMED, Yan HE, Dibyendu MUKHERJEE
  • Publication number: 20210132392
    Abstract: A display element, and a light-guiding member including a plurality of reflection surfaces and configured to guide image light from the display element by reflecting the image light at an inner surface, and cause the image light and external light to be visually recognized in an overlapping manner are provided, wherein at a boundary between a first reflection surface and a second reflection surface adjacent to each other included in the plurality of reflection surfaces of the light-guiding member with at least one of the first reflection surface and the second reflection surface including a curved surface, an end of the first reflection surface and an end of the second reflection surface match when projected from a specific direction.
    Type: Application
    Filed: October 29, 2020
    Publication date: May 6, 2021
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Masayuki TAKAGI, Tokito YAMAGUCHI, Toshiaki MIYAO, Takashi TAKEDA
  • Publication number: 20210132388
    Abstract: A head-mounted display includes an image display device including a panel unit serving as a display element configured to display an image, a colored optical member disposed on a light path of imaging light emitted from the panel unit and having a yellowness of a predetermined value or greater, and a coloring correction optical member configured to correct a degree of coloring of the imaging light of the entire light path in accordance with the yellowness of the colored optical member.
    Type: Application
    Filed: October 27, 2020
    Publication date: May 6, 2021
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Tokito YAMAGUCHI, Masayuki TAKAGI, Toshiaki MIYAO, Akira KOMATSU, Takashi TAKEDA
  • Publication number: 20210132389
    Abstract: A light-guiding device is configured to accept image light through a light incidence part, guide the image light through reflection, and emit, to outside through a light emission part, the image light that is guided, the light-guiding device includes a protective member having a sheet shape and configured to cover a body member in a region corresponding to an optical surface of a surface of the light-guiding device, and an adhesive layer is formed between the body member and the protective member.
    Type: Application
    Filed: October 28, 2020
    Publication date: May 6, 2021
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Toshiaki MIYAO, Masayuki TAKAGI, Tokito YAMAGUCHI, Takashi TAKEDA
  • Patent number: 10998576
    Abstract: An electrolyte precursor solution includes a metallic compound containing elements constituting an electrolyte, a solvent capable of dissolving the metallic compound, and an anionic surfactant having a sulfate group (SO42?) bonded to a hydrophobic group R. By reacting such an electrolyte precursor solution with active material particles containing lithium, lithium sulfate derived from the anionic surfactant is interposed at the interface between the surface of the active material particle and the electrolyte so as to enhance the dissociation of lithium ions at the interface, and thus, an excellent ion conductivity can be realized.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: May 4, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hitoshi Yamamoto, Tomofumi Yokoyama
  • Patent number: 10997406
    Abstract: An image processing apparatus includes a controller configured to execute a process on a result of reading on a plurality of documents. The controller obtains document data of a plurality of pages generated by reading the plurality of pages, executes detection of a heading region corresponding to a headline of a document on the obtained document data of the individual pages, and makes a determination as to whether reading order of the documents is appropriate by estimating the anteroposterior relationship among the pages based on presence or absence of the heading region in the document data of the individual pages.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: May 4, 2021
    Assignee: Seiko Epson Corporation
    Inventors: Eiichi Harada, Kiyoshi Mizukura
  • Patent number: 10998907
    Abstract: An integrated circuit device includes a digital signal processing circuit that generates frequency control data by performing a temperature compensation process by a neural network calculation process based on temperature detection data and an amount of change in time of the temperature detection data, and an oscillation signal generation circuit that generates an oscillation signal of a frequency set by the frequency control data using a resonator.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: May 4, 2021
    Assignee: Seiko Epson Corporation
    Inventors: Yasuhiro Sudo, Hideo Haneda
  • Patent number: 10994951
    Abstract: An electronic component handler includes an electronic component transporter transporting an electronic component in an arrangement state where a shuttle plate is arranged, the shuttle plate having a recess receiving the electronic component, a light source casting light, a light receiver receiving the light, a detector detecting presence/absence of the electronic component in the recess, and a negative pressure generator putting the recess under a negative pressure. The shuttle plate has a first flow path. The electronic component transporter has: a shuttle plate fastener having a second flow path communicated with the first flow path in the arrangement state and having the shuttle plate fixed thereto in the arrangement state, a transmission member sealing the second flow path and transmitting the light, and a driver driving the shuttle plate fastener. The negative pressure generator is coupled to the second flow path and sucks the electronic component in the recess.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: May 4, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Fuyumi Takata, Noriaki Kotani
  • Patent number: 10994538
    Abstract: A liquid ejecting head has head units for ejecting a liquid from nozzles onto a medium that is relatively moved in a first direction are arranged in a second direction perpendicular to the first direction. The head unit includes: a nozzle row in which the nozzles are arranged in a third direction intersecting the first direction and the second direction; a pressure chamber which communicates with the nozzles; a pressure generation element which corresponds to the pressure chamber; a supply liquid chamber which communicates with the pressure chambers and into which the liquid to be supplied to each pressure chamber is introduced; an inflow port through which the liquid flows into the head unit; and an outflow port through which the liquid flows out of the head unit.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: May 4, 2021
    Assignee: Seiko Epson Corporation
    Inventor: Fumiya Takino
  • Patent number: 10996551
    Abstract: A light source device configured to emit a light beam in a first direction emits a first colored light beam from a first exit position, a second colored light beam longer in wavelength than the first colored light beam, a third colored light beam shorter in wavelength than the first colored light beam, and a fourth colored light beam, a mixed light beam including the first colored light beam and the second colored light beam enters an outgoing light switching device disposed in a light path of the fourth colored light beam.
    Type: Grant
    Filed: August 27, 2020
    Date of Patent: May 4, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Koichi Akiyama