Patents Assigned to Epson Corporation
  • Patent number: 11964478
    Abstract: A waveform determination method is disclosed that includes acquiring second timing information regarding a timing at which the flight distance of the droplet reaches the first distance when each of the plurality of waveform candidates indicated by the second waveform information is used, and a determination step of determining a waveform of each of the first drive pulse and the second drive pulse based on the first timing information and the second timing information.
    Type: Grant
    Filed: February 7, 2022
    Date of Patent: April 23, 2024
    Assignee: Seiko Epson Corporation
    Inventors: Toshiro Murayama, Atsushi Toyofuku, Shunya Fukuda, Takahiro Katakura
  • Patent number: 11964493
    Abstract: A liquid ejecting apparatus includes a head unit having a plurality of nozzles ejecting an ink, the head unit including a filter provided with holes through which the ink can pass, a first nozzle row formed by the plurality of nozzles, and a second nozzle row formed by the plurality of nozzles, and a mounting portion on which the head unit is detachably mounted. The nozzles forming the second nozzle row communicate with the nozzles forming the first nozzle row via the filter. A pre-operation of forming gas-liquid interfaces in the holes provided in the filter is executed before the head unit is removed from the mounting portion.
    Type: Grant
    Filed: February 15, 2022
    Date of Patent: April 23, 2024
    Assignee: Seiko Epson Corporation
    Inventor: Taichi Yokoyama
  • Patent number: 11964479
    Abstract: A medium feeding device includes a feeding roller that is provided in a medium feeding path through which a medium is fed and that feeds a medium downstream by rotating in the forward direction in response to power of a motor, a nip roller that is provided in the medium feeding path and that nips a medium in cooperation with the feeding roller and rotates, and a controller configured to control the motor. Based on an increase in a variation value varying in accordance with a drive load of the motor, the controller controls the motor and causes the feeding roller to start a medium feeding operation.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: April 23, 2024
    Assignee: Seiko Epson Corporation
    Inventors: Keisuke Sasaki, Takayuki Tanaka, Hiroki Shinagawa
  • Patent number: 11967903
    Abstract: A rectifier circuit includes: a first input line to which a first alternating-current voltage is supplied and that is wired along a first direction; a second input line to which a second alternating-current voltage is supplied and that is wired along the first direction on a second direction side of the first input line; a first output line that is configured to output a first rectified voltage and is wired along the second direction; a second output line that is configured to output a second rectified voltage and is wired along the second direction on a first direction side of the first output line; a first rectifier element that is arranged corresponding to an intersection of the first input line and the first output line; a second rectifier element that is arranged corresponding to an intersection of the second input line and the first output line; a third rectifier element that is arranged corresponding to an intersection of the first input line and the second output line; and a fourth rectifier element t
    Type: Grant
    Filed: February 24, 2022
    Date of Patent: April 23, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Kinya Matsuda, Kazuhiro Maekawa
  • Patent number: 11964468
    Abstract: A printer includes a rolled paper holder that accommodates rolled paper wound with recording paper having a recording surface and an adhesive surface provided on a side opposite to the recording surface, a platen roller that comes into contact with the adhesive surface and draws and feeds the recording paper from the rolled paper, a thermal head that performs printing on the recording surface, and a first guide portion that comes into contact with the recording surface and guides the recording paper, and the first guide portion has a first friction reduction portion that reduces a friction force generated between the recording surface and the first guide portion.
    Type: Grant
    Filed: June 21, 2022
    Date of Patent: April 23, 2024
    Assignee: Seiko Epson Corporation
    Inventor: Kazutaka Yamamoto
  • Patent number: 11966655
    Abstract: A method for controlling a projecting system is provided. The method includes: causing a projector projecting a menu screen onto a screen to store definition information defining the menu screen; causing the information processing device to generate update information used to update the definition information; causing the information processing device to transmit the update information to the projector; causing the projector generating an updated definition information, based on the update information; by updating the definition information and causing the projector to generate the menu screen, based on the updated definition information.
    Type: Grant
    Filed: December 3, 2021
    Date of Patent: April 23, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Toshiki Fujimori
  • Patent number: 11964480
    Abstract: A driving waveform determining method with which a waveform of a driving pulse applied to a driving element provided in a liquid ejecting head that ejects a liquid is determined includes: a first step of measuring, by performing a simulation, ejection characteristics of the liquid from the liquid ejecting head when a waveform candidate is used for the driving pulse; a second step of measuring, by performing an actual measurement, the ejection characteristics of the liquid from the liquid ejecting head when the waveform candidate is used for the driving pulse; and a third step of determining the waveform of the driving pulse in accordance with a measurement result obtained in the first step and a measurement result obtained in the second step.
    Type: Grant
    Filed: July 28, 2021
    Date of Patent: April 23, 2024
    Assignee: Seiko Epson Corporation
    Inventors: Atsushi Toyofuku, Toshiro Murayama, Takahiro Katakura
  • Patent number: 11964491
    Abstract: A cartridge includes a concave portion. The concave portion has an opening, first and second side walls, and a bottom wall, and the bottom wall has a tilted surface tilted. The tilted surface is provided with a cartridge side terminal group. The first side wall is provided with a first restriction portion which restricts movements in a +Z axis direction and a +X axis direction of an apparatus side terminal unit, and the second side wall is provided with a second restriction portion which restricts movements in the +Z axis direction and a ?X axis direction of an apparatus side terminal unit.
    Type: Grant
    Filed: February 22, 2022
    Date of Patent: April 23, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Yuji Aoki, Hiroshi Satoh
  • Patent number: 11964502
    Abstract: A recording device includes a recording unit configured to perform recording on a medium, a housing unit configured to house the recording unit and including an opening through which the recording unit is visible, an opening/closing cover configured to open and close the opening, and an illumination unit provided at a predetermined position above the recording unit and configured to illuminate an interior of the housing unit. The illumination unit is configured to move to a retracted position farther away from the recording unit than is the predetermined position, in response to the opening/closing cover being opened.
    Type: Grant
    Filed: October 10, 2022
    Date of Patent: April 23, 2024
    Assignee: Seiko Epson Corporation
    Inventor: Akina Fujii
  • Patent number: 11968480
    Abstract: A display method includes detecting a write operation on a display surface by a pointer, determining whether an operation button provided on the pointer is pressed or not, displaying an image corresponding to the write operation as a first image on the display surface, when the write operation is detected and it is determined that the operation button is pressed, and erasing the first image when it is determined that the operation button is not pressed during a period when the first image is displayed.
    Type: Grant
    Filed: March 25, 2022
    Date of Patent: April 23, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Tomonori Kumagai
  • Patent number: 11964482
    Abstract: The plurality of pressure compartments includes a first pressure compartment and a second pressure compartment located next to the first pressure compartment in the first direction. The plurality of nozzles includes a first nozzle that is in communication with the first pressure compartment and the second pressure compartment in a shared manner. The piezoelectric element includes a first active region where the piezoelectric body is sandwiched between the common electrode and, among the plurality of individual electrodes, a first individual electrode. The first active region is located to span from at least a part of the first pressure compartment to at least a part of the second pressure compartment as viewed in the second direction.
    Type: Grant
    Filed: December 6, 2021
    Date of Patent: April 23, 2024
    Assignee: Seiko Epson Corporation
    Inventor: Motoki Takabe
  • Patent number: 11966642
    Abstract: An information processing device changes a printer queue generated at the time of USB coupling with a printer to a printer queue corresponding to a predetermined printer driver, when it is detected that the generated printer queue is not a printer queue corresponding to the predetermined printer driver.
    Type: Grant
    Filed: September 30, 2022
    Date of Patent: April 23, 2024
    Assignee: Seiko Epson Corporation
    Inventors: Kazuki Ohashi, Yohei Kondo
  • Patent number: 11967944
    Abstract: The vibrator element includes a vibrating arm provided with an arm part, and a weight part which has a weight, the weight is provided with at least one processing scar, when an axis which overlaps a center in a width direction of the vibrating arm, and which extends along an extending direction of the vibrating arm is a central axis, and an axis which overlaps a centroid of the vibrating arm, and which extends along the extending direction of the vibrating arm is a centroid axis, the processing scar is formed in at least an area at an opposite side to the centroid axis, and S1<S2 an area of the processing scar located at the centroid axis side with respect to the central axis is S1, and an area of the processing scar located at an opposite side to the centroid axis with respect to the central axis is S2.
    Type: Grant
    Filed: February 18, 2021
    Date of Patent: April 23, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Hideaki Kurita
  • Patent number: 11966649
    Abstract: A PC that is communicatable with a server device. The PC includes: a PC memory storing a first application; and a PC processor. The PC processor functions as, by executing the first application, a registration unit configured to register a printer, a generation unit configured to automatically generate, for the printer registered by the registration unit, a hot folder for storing a print job transmitted from the server device, and a notification unit configured to notify the server device of path information indicating a folder path of the hot folder generated by the generation unit.
    Type: Grant
    Filed: January 27, 2023
    Date of Patent: April 23, 2024
    Assignee: Seiko Epson Corporation
    Inventor: Kei Jintsugawa
  • Patent number: 11964474
    Abstract: A recording apparatus includes a plurality of medium containing units that is provided along a vertical direction and contains a medium before recording, a liquid ejecting head that performs recording by ejecting liquid toward the medium, and at least one liquid containing unit that contains the liquid. The plurality of medium containing units includes a first medium containing unit located at an uppermost position, and a second medium containing unit located below the first medium containing unit. A size of the first medium containing unit in a medium feeding-out direction, in which the medium is fed out, is smaller than a size of the second medium containing unit in the medium feeding-out direction, and the at least one liquid containing unit is provided above the second medium containing unit in such a way as to overlap with the first medium containing unit in a vertical direction.
    Type: Grant
    Filed: January 5, 2023
    Date of Patent: April 23, 2024
    Assignee: Seiko Epson Corporation
    Inventors: Takamasa Ikagawa, Akinobu Nakahata
  • Publication number: 20240128803
    Abstract: A control device includes a control portion that controls a power supply portion that supplies power to a load based on received power received by a power receiving portion from a power transmitting device. In the case where the power receiving portion, after receiving a signal having a first frequency and a first duty from the power transmitting device, receives a signal having a second frequency that is different from the first frequency or a signal having a second duty that is different from the first duty, the control portion specifies an issued command based on a length of a reception period of the signal having the second frequency or the signal having the second duty.
    Type: Application
    Filed: December 28, 2023
    Publication date: April 18, 2024
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Kota ONISHI
  • Patent number: 11958199
    Abstract: A robot control device that controls operation of a robot including a robot arm, a driving section configured to drive the robot arm, and a driving control section configured to receive electric power supplied to the driving section and output power to the driving section based on an input control signal, the robot control device including a logical operation circuit configured to perform a logical operation about a stop signal and output an operation result and a power interruption circuit configured to interrupt, based on the operation result, the electric power supplied to the driving control section or the control signal input to the driving control section to thereby interrupt the power of the driving section.
    Type: Grant
    Filed: September 1, 2021
    Date of Patent: April 16, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Daisuke Higashi, Takahiro Kamijo, Tomonori Yamada, Motoki Ito
  • Patent number: 11960074
    Abstract: An optical filter includes a pair of reflection films facing each other via a gap, and a gap change portion that changes a distance between the pair of reflection films, wherein the reflection film is formed by a plurality of layered structures, the plurality of layered structures are respectively formed by alternate stacking of high-refractive layers and low-refractive layers having smaller refractive indices than the high-refractive layers and, in the respective layered structures, optical film thicknesses of the high-refractive layers and optical film thicknesses of the low-refractive layers are film thicknesses based on predetermined design center wavelengths set with respect to each of the layered structures, and the design center wavelengths are different with respect to each of the layered structures.
    Type: Grant
    Filed: July 9, 2020
    Date of Patent: April 16, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Tomoaki Nakamura
  • Patent number: 11958113
    Abstract: A three-dimensional shaped article production method for producing a three-dimensional shaped article by ejecting a shaping material to a stage and stacking layers according to a path including multiple partial paths is provided.
    Type: Grant
    Filed: October 27, 2021
    Date of Patent: April 16, 2024
    Assignee: Seiko Epson Corporation
    Inventor: Satoshi Yamazaki
  • Patent number: 11961646
    Abstract: A soft magnetic powder including particles having a composition represented by FexCuaNbb(Si1-yBy)100-x-a-b [provided that a, b, and x are each a number whose unit is at % and satisfy 0.3?a?2.0, 2.0?b?4.0, and 73.0?x?79.5, respectively, and y is a number satisfying f(x)?y?0.99, in which f(x)=(4×10?34)x17.56], wherein the particle contains a crystal grain having a grain diameter of 1.0 nm or more and 30.0 nm or less, and includes a Cu segregated portion in which Cu is segregated, the Cu segregated portion is present at a position deeper than 30 nm from a surface of the particle, and a maximum Cu concentration in the Cu segregated portion exceeds 6.0 at %.
    Type: Grant
    Filed: February 7, 2022
    Date of Patent: April 16, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Mayu Watanabe