Patents Assigned to Seiko Epson Corporation
  • Patent number: 11325389
    Abstract: A liquid ejecting apparatus including a liquid ejecting head that ejects a liquid, a liquid storage portion that stores the liquid, a supply flow path that communicates the liquid ejecting head and the liquid storage portion with each other, and an air chamber that is coupled to the supply flow path through a plurality of flow paths. The supply flow path includes a filter. The plurality of flow paths are, in the supply flow path, connected upstream of the filter, and the air chamber is positioned at a position higher than the filter when in a posture during use.
    Type: Grant
    Filed: August 26, 2020
    Date of Patent: May 10, 2022
    Assignee: Seiko Epson Corporation
    Inventors: Takashi Koase, Yuta Komatsu
  • Patent number: 11325383
    Abstract: A liquid ejecting apparatus includes a liquid ejecting portion that ejects a liquid, a belt-shaped member absorbs the liquid, a feeding portion that retains the belt-shaped member in a rolled state, a pressing portion presses a contact portion of a portion of the belt-shaped member wound off from the feeding portion and bring the contact portion into contact with the liquid ejecting portion, the contact portion being located in a contact area, a winding portion moves the contact portion in a moving direction by winding up the belt-shaped member, and a control portion that, when it is assumed that a contact length is a length of the contact portion along the direction of movement, causes the winding portion to wind up the belt-shaped member corresponding to a length longer than the contact length after bringing the contact portion into contact with the liquid ejecting portion.
    Type: Grant
    Filed: October 6, 2020
    Date of Patent: May 10, 2022
    Assignee: Seiko Epson Corporation
    Inventors: Yuji Kanazawa, Naoki Yokoyama, Masanobu Yamaguchi, Hitotoshi Kimura
  • Patent number: 11329494
    Abstract: A mobile device includes a driving circuit, a first accommodation section configured to accommodate a first battery which supplies electric power to the driving circuit and which is an all-solid-state battery having a solid electrolyte, a control circuit configured to control the driving circuit such that driving is performed in one of a plurality of modes including a first mode and a second mode in which power consumption is smaller than the first mode, and a determination circuit configured to determine whether electric power is supplied from an external power source to the first battery. When the determination circuit determines that the electric power is supplied from the external power source to the first battery, the control circuit performs switching from the second mode to the first mode.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: May 10, 2022
    Assignee: Seiko Epson Corporation
    Inventors: Ryohei Horita, Nobuaki Ito
  • Patent number: 11325386
    Abstract: A liquid container device includes: a liquid container having an inlet; a casing in which the liquid container is housed; and a cap lever having a cap configured to seal the inlet. The liquid container has an upper surface, and a visualization surface. The casing includes a cover configured to pivot and that protects the upper surface, a cap lever-engaging portion, a visualization portion having an opening, and a wall portion disposed on the +Z direction side with respect to the visualization portion. The cap lever includes an engageable portion configured to be engaged with the cap lever-engaging portion, and a body extending in the +Y direction from the engageable portion. A surface disposed so as to face the cover of the body is planar, and an end of the body in the +Y direction is separated from an end of the wall portion in the +Z direction.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: May 10, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hideki Okumura, Toshiyuki Ochiai
  • Patent number: 11325392
    Abstract: A printer includes an ink tank, a print head that performs printing by using ink in the ink tank, a light source that emits light into the ink tank, a sensor that outputs pixel data by detecting light incident from an ink tank side in a period during which the light source emits light, and a processing section that determines an ink amount by an output of the sensor. The processing section designates a reading area for the sensor, and determines an ink amount based on pixel data of the reading area output from the sensor.
    Type: Grant
    Filed: August 18, 2020
    Date of Patent: May 10, 2022
    Assignee: Seiko Epson Corporation
    Inventors: Takahiro Netsu, Takuma Usuda, Kei Nagaoka
  • Patent number: 11327392
    Abstract: A light source device of the present disclosure includes a light emitting device that outputs a first light having a first wavelength in a first polarization direction, a first optical element having a first area and a second area, a second optical element into which the first light reflected by the first area is entered, converting the first light into a circularly-polarized second light having the first wavelength, and a diffuser element into which the second light is entered. The second light entering the second optical element is converted into a third light having the first wavelength in a second polarization direction, the third light is transmitted through the first area, the second light is transmitted through the second area, and a fourth light output from the diffuser element and entered into the first area and the second area is transmitted through the first area and the second area.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: May 10, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Koichi Akiyama
  • Patent number: 11327301
    Abstract: A virtual image display device includes an image element configured to display an image, a first lens disposed in an extraction position of image light and including at the image element side thereof a convex surface, a second lens disposed further toward the image element side than the first lens and including a concave surface bonded to the convex surface of the first lens, a half mirror provided in a bonding portion for bonding together the convex surface and the concave surface, a transmission/reflection selection member provided at a light emitting side of the first lens and configured to selectively perform transmission or reflection of the light depending on a polarization state of the light, and a light-guiding portion keeping close contact between the image element and the second lens and configured to guide the image light.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: May 10, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Masayuki Takagi, Akira Komatsu, Takashi Takeda, Toshiaki Miyao, Tokito Yamaguchi
  • Patent number: 11329041
    Abstract: A semiconductor integrated circuit includes a first MOS transistor, a second MOS transistor, and a P+ region. The first MOS transistor is an NMOS transistor which has a first N-type region and a second N-type region and in which a first power supply voltage is supplied to the first N-type region. The second MOS transistor is an NMOS transistor which has a third N-type region and a fourth N-type region and in which a second power supply voltage higher than the first power supply voltage is supplied to the third N-type region. The P+ region is supplied with the first power supply voltage. In plan view of the semiconductor substrate, the first MOS transistor and the second MOS transistor are disposed to be adjacent to each other, and the P+ region is located between the first N-type region and the third N-type region.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: May 10, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Noboru Itomi
  • Patent number: 11325388
    Abstract: A liquid ejecting unit includes: a liquid ejecting head configured to eject a liquid; a holding portion holding the liquid ejecting head; a coupling member; and a first fixing member fixing the liquid ejecting head to the holding portion, in which the coupling member is provided with a first coupling portion and a first through-hole, the liquid ejecting head is provided with a second coupling portion that is configured to be coupled to the first coupling portion, and the first fixing member passes through the first through-hole in a state in which the first coupling portion and the second coupling portion are coupled to each other.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: May 10, 2022
    Assignee: Seiko Epson Corporation
    Inventors: Daiki Tatsuta, Osamu Murayama, Yoji Takahashi
  • Patent number: 11330142
    Abstract: Provided is a service providing system including: a service providing server providing a printer use service; and a user terminal configured to communicate with the service providing server, in which the user terminal receives an input of a card number recorded in a service card for receiving the printer use service and transmits the received card number to the service providing server, and the service providing server performs authentication processing of the service card based on the card number received from the user terminal and performs printer delivery processing of causing a service printer to be delivered when authentication of the service card in the authentication processing is successful.
    Type: Grant
    Filed: October 27, 2020
    Date of Patent: May 10, 2022
    Assignee: Seiko Epson Corporation
    Inventors: Norihiko Nakajima, Diego Albergoni, Mauro Bartoletti, Alberto Raviolo
  • Patent number: 11326305
    Abstract: A fibrous body accumulating device includes: a drum having an opening for releasing a material containing fibers and rotating around a central axis; and a first dispersion member disposed in the drum and at a position unevenly distributed vertically below the central axis, and dispersing the material in the drum. Preferably, the fibrous body accumulating device further includes a second dispersion member disposed in the drum and at a position unevenly distributed vertically above the central axis, and dispersing the material in the drum.
    Type: Grant
    Filed: February 5, 2021
    Date of Patent: May 10, 2022
    Assignee: Seiko Epson Corporation
    Inventor: Kazuma Miyazawa
  • Patent number: 11330236
    Abstract: A projector controlling method including projecting a pattern image, capturing an image of the pattern image with an image sensor to acquire captured pattern image data, determining based on the captured pattern image data a flat surface range where a flat surface is present within the range over which the pattern image is projected, generating an on-screen-display superimposed image in such a way that the superimposed image is selectively projected within the flat surface range, and projecting the superimposed image.
    Type: Grant
    Filed: October 28, 2020
    Date of Patent: May 10, 2022
    Assignee: Seiko Epson Corporation
    Inventor: Shoichi Kinoshita
  • Patent number: 11325404
    Abstract: A recording apparatus is configured to support a roll body on which a medium is wound in a rolled form, and to perform recording on the medium fed out from the roll body, the recording apparatus including a housing, and a roll unit configured to support the roll body, in which the roll unit is configured to transition to a first mode in which the roll unit is stored inside the housing in a state of not supporting the roll body, and to a second mode in which the roll unit is drawn out from inside the housing to outside the housing where the roll unit is configured to support the roll body.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: May 10, 2022
    Assignee: Seiko Epson Corporation
    Inventors: Masaaki Kinoshita, Hitoshi Igarashi
  • Patent number: 11327369
    Abstract: An electro-optical device includes a first substrate including a layered body including a plurality of insulating layers, and a pixel electrode disposed at the layered body, a second substrate including a common electrode, an electro-optical layer disposed between the pixel electrode and the common electrode, the electro-optical layer having optical characteristics varying according to an electric field, a spacer coupled to the first substrate, the spacer defining a distance between the pixel electrode and the common electrode, in which the spacer has a first portion overlapping with the pixel electrode when viewed in a thickness direction of the first substrate, and a second portion not overlapping with the pixel electrode when viewed in the thickness direction.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: May 10, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Satoshi Ito
  • Patent number: 11327444
    Abstract: A watch includes a case, a first spring bar support portion and a second spring bar support portion which are provided on the case. Further included is a spring bar supported by the first spring bar support portion and the second spring bar support apportion, a cover member into which the spring bar is inserted and which is between the first spring bar support portion and the second spring bar support portion. The cover member entirely surrounds a circumference of the spring bar. A band is provided between the cover member and the case.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: May 10, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Yoshio Mishima, Atsushi Kobayashi
  • Patent number: 11326881
    Abstract: A vibrator device includes a vibrator having a first and second electrode, and a circuit device having a drive circuit adapted to drive the vibrator, and an output circuit adapted to output a monitor signal corresponding to a vibration characteristic of the vibrator while driven by the drive circuit. The circuit device includes a first terminal electrically connected to the first electrode, and from which an output signal from the drive circuit to the vibrator is output, a second terminal electrically connected to the second electrode, and to which an input signal from the vibrator to the drive circuit is input, a third terminal electrically separated from the first electrode and the second electrode, and a monitor terminal from which the monitor signal is output. The vibrator is supported on an active surface side of the circuit device using conductive bumps respectively to the first, second, and third terminal.
    Type: Grant
    Filed: January 8, 2019
    Date of Patent: May 10, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Hiroshi Kiya
  • Patent number: 11327389
    Abstract: A method of controlling an image projection system that includes a plurality of projectors including a first projector and a second projector having a lens shift function, and that includes an imaging device, includes: projecting, by the first projector, a first pattern having a first color tone; projecting, by the second projector, a second pattern having a second color tone; generating, by the imaging device, a captured image obtained by capturing a composite image including the first and second pattern; determining, by the first projector, whether an area of an overlapping portion of the second pattern in the captured image is equal to or larger than a predetermined ratio; and causing, by the first projector, the second projector to perform lens shift by the lens shift function of the second projector such that the second pattern overlaps the first pattern, when the area is less than the predetermined ratio.
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: May 10, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Shoichi Kinoshita
  • Patent number: 11325401
    Abstract: A printer for printing on rolled paper includes an air pressure sensor that detects air pressure, a platen that has a suction hole and is installed on a transport path of the rolled paper, a suction fan that sucks the rolled paper via the suction hole, and a control section that performs control for changing a rotation speed of the suction fan according to a detection result of the air pressure sensor.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: May 10, 2022
    Assignee: Seiko Epson Corporation
    Inventors: Yusuke Kanno, Hiroyuki Endo
  • Patent number: 11327705
    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: Grant
    Filed: October 26, 2020
    Date of Patent: May 10, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Shinya Sato
  • Patent number: 11327327
    Abstract: An image display device according to the present disclosure includes a first self-light-emitting display element that emits light for an image of red light, a second self-light-emitting display element that emits light for an image of blue light, a third self-light-emitting display element that emits light for an image of green light, and a prism having a dichroic mirror that synthesizes images of three colors, in which the first self-light-emitting display element, the second self-light-emitting display element, and the third self-light-emitting display element have a first cathode, a second cathode, and a third cathode, respectively, and when a film thickness of the first cathode is referred to as TR, a film thickness of the second cathode is referred to as TB, and a film thickness of the third cathode is referred to as TG, a relationship TR<TG is satisfied.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: May 10, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Yuiga Hamade, Hidetoshi Yamamoto