Patents Assigned to Seiko Epson Corporation
  • Patent number: 12045019
    Abstract: An austenized ferritic stainless steel includes a first region including a first soft magnetic layer composed of a ferrite phase, a first non-magnetic layer composed of an austenized phase in which the ferrite phase is austenized, and a first mixed layer in which the ferrite phase and the austenized phase are mixed, the first mixed layer being formed between the first soft magnetic layer and the first non-magnetic layer, and a second region including a second non-magnetic layer composed of the austenized phase, the second non-magnetic layer having a thickness greater than that of the first non-magnetic layer.
    Type: Grant
    Filed: May 19, 2023
    Date of Patent: July 23, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Koki Takasawa
  • Publication number: 20240242678
    Abstract: A display device includes a scanning line, a first data line and a second data line, a first transistor circuit, a second transistor circuit, a first light emitting element including a first pixel electrode, and a second light emitting element including a second pixel electrode, wherein the first transistor circuit includes a first drive transistor and a first selection transistor, the second transistor circuit includes a second drive transistor and a second selection transistor, the first pixel electrode and the second pixel electrode are arranged in the second direction, the first transistor circuit and the second transistor circuit are arranged in the first direction, and a gate included in the first selection transistor and a gate included in the second selection transistor are electrically coupled to the scanning line.
    Type: Application
    Filed: January 12, 2024
    Publication date: July 18, 2024
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takumi KODAMA, Takeshi KOSHIHARA
  • Publication number: 20240239123
    Abstract: There is provided a ribbon cartridge, in which a cartridge case is provided with a cartridge-side tape inlet, and a cartridge-side tape outlet, a first case portion and a second case portion are combined by a plurality of case engagement portions including a second B engagement pin provided at the second case portion and a first B engagement hole provided at the first case portion and engaged with the second B engagement pin, and the cartridge-side tape inlet is provided at a position at which a distance from one case engagement portion of the plurality of case engagement portions is smaller than a dimension of the cartridge-side tape inlet in a lateral direction.
    Type: Application
    Filed: January 11, 2024
    Publication date: July 18, 2024
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Atsushi Yanagisawa, Akio Ishimoto
  • Publication number: 20240241409
    Abstract: An electro-optical device includes a first substrate, a second substrate facing the first substrate, and an electro-optical layer disposed between the first substrate and the second substrate and having an optical characteristic changeable in accordance with an electrical field. The first substrate includes a substrate, an inorganic insulating layer, a first pixel electrode and a second pixel electrode spaced apart from each other, and an alignment layer. The inorganic insulating layer, the first pixel electrode, the second pixel electrode, and the alignment layer are arranged in this order from the substrate toward the electro-optical layer. The cover layer includes a first portion filling an area of the inorganic insulating layer between the first pixel electrode and the second pixel electrode. The alignment film includes a second portion that is in contact with the first portion and of which a surface opposite to the first portion is a planar surface.
    Type: Application
    Filed: January 15, 2024
    Publication date: July 18, 2024
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Yukihiro SUGIURA
  • Publication number: 20240239122
    Abstract: There is provided a ribbon cartridge, in which a cartridge case includes a first case portion, and a second case portion provided in a first direction with respect to the first case portion, and combined with the first case portion, the second case portion includes a second A case portion, and a second B case portion made of a member different from a member of the second A case portion, the cartridge case is provided with a cartridge-side tape inlet provided between the second A case portion and the second B case portion, a cartridge-side tape outlet, and a tape path from the cartridge-side tape inlet to the cartridge-side tape outlet, and the second A case portion is configured to open and close a first path from the cartridge-side tape inlet to a middle of the tape path, in the first direction.
    Type: Application
    Filed: January 11, 2024
    Publication date: July 18, 2024
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Atsushi Yanagisawa, Akio Ishimoto
  • Patent number: 12039213
    Abstract: A print control apparatus includes a modification control section configured to change, in accordance with a given number relating to a print request issued by a terminal device, the number or a specification of one or more virtual data conversion servers that convert data of a print job based on the print request into data suitable for the printing apparatus, and an allocation control section configured to allocate the print job to any one of the changed one or more data conversion servers.
    Type: Grant
    Filed: March 23, 2023
    Date of Patent: July 16, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takumi Yoshida, Masayuki Kobayashi, Yukie Yamazaki
  • Patent number: 12037503
    Abstract: An ink jet ink composition is a water-based ink that contains at least one pigment and at least one resin and is for use in recording on a low- or non-absorbent recording medium. The ink composition contains at least one water-soluble low-molecular-weight organic compound that has a melting point of 30° C. or above and is any of an amide, sulfur-containing compound, or cyclic ether, and the low-molecular-weight organic compound constitutes 10% by mass or less of the total mass of the ink composition. The ink composition also contains at least one organic solvent that is a diol having a melting point of 25° C. or below, and the organic solvent constitutes a higher percentage than the low-molecular-weight organic compound.
    Type: Grant
    Filed: July 11, 2022
    Date of Patent: July 16, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Yuta Asakawa, Mitsuaki Kosaka
  • Patent number: 12039761
    Abstract: An image processing method of converting spectral image data of a plurality of spectral wavelengths imaged by a spectral camera into a color image by using a processor, wherein the processor acquires a plurality of pieces of the spectral image data from a storage unit, calculates a correction value by multiplying a optical spectrum of each pixel of a corresponding one of the plurality of spectral image data by a correction constant set for each wavelength, calculates a color conversion value by summing the correction values of the same pixel positions, and generates a color composite image based on the color conversion value. Then, the correction constant is set such that a sum spectrum obtained by summing characteristic spectra obtained by multiplying a sensitivity characteristic with respect to each spectral wavelength of the spectral camera by the correction constant corresponding to each wavelength matches a target spectrum of any color filter.
    Type: Grant
    Filed: October 28, 2022
    Date of Patent: July 16, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Kei Kudo, Teruyuki Nishimura
  • Patent number: 12040748
    Abstract: The oscillation circuit includes a drive circuit and an amplitude limiting circuit. A vibrator-output signal is input to the drive circuit from one end of the vibrator, and the drive circuit outputs a drive signal obtained by inverting the vibrator-output signal. The amplitude limiting circuit is disposed between an output node of the drive circuit and the other end of the vibrator, and outputs an amplitude-limited drive signal obtained by reducing an amplitude of the drive signal to the other end of the vibrator.
    Type: Grant
    Filed: September 10, 2021
    Date of Patent: July 16, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Jun Watanabe
  • Patent number: 12036711
    Abstract: A plasticization device that plasticizes a material, includes: a drive motor; a rotor that is to be rotated by the drive motor and has a groove-forming surface in which a curved projection strip portion is formed from a peripheral edge of a circular central portion toward an outer periphery of the rotor; a barrel that faces the groove-forming surface and includes a communication hole at a position facing the central portion of the groove-forming surface; and a heating unit that heats the material supplied between the rotor and the barrel, the rotor includes a protrusion protruding from the central portion toward the communication hole, and 0.28?S2/S1?1.03??(1), wherein S1 is an area of the central portion and S2 is a maximum area of a cross section of the protrusion along the groove-forming surface.
    Type: Grant
    Filed: February 22, 2021
    Date of Patent: July 16, 2024
    Assignee: Seiko Epson Corporation
    Inventors: Riona Hayashi, Seiichiro Yamashita, Kenta Anegawa, Megumi Enari, Masashi Fuchii
  • Patent number: 12041208
    Abstract: An image reading apparatus includes: a document transport route along which a document inserted into the image reading apparatus from a front side is transported backward; a reader that reads an image of the document; an ejection guide that upwardly guides the document being fed after the document is ejected backward from the document transport route; and a transport-force-applying mechanism that applies a transport force to the document. The transport force applied by the transport-force-applying mechanism to a first side of the document is greater than the transport force applied by the transport-force-applying mechanism to a second side of the document, the first side being positioned on a first-directional side in a width direction intersecting a document transport direction, the second side being positioned a second-directional side that is opposite to the first-directional side. The ejection guide is positioned asymmetrically toward the first-directional side in the width direction.
    Type: Grant
    Filed: December 9, 2021
    Date of Patent: July 16, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Keita Fuji
  • Patent number: 12041205
    Abstract: Provided is a printing device that performs printing using a recording material, the printing device including: an capacitive touch panel; a home operation portion including a mechanical key for transitioning from a screen displayed on the capacitive touch panel to a basic screen including information on a remaining amount of the recording material; and a power supply operation portion including a mechanical key for shifting a power state of the printing device, in which the home operation portion is closer to the capacitive touch panel than the power supply operation portion.
    Type: Grant
    Filed: July 6, 2022
    Date of Patent: July 16, 2024
    Assignee: Seiko Epson Corporation
    Inventors: Yasuo Koyauchi, Seiji Kimura
  • Patent number: 12036740
    Abstract: A three-dimensional shaping device includes an injection head having a nozzle, a stage, a motor, a brush, a blade, a memory, and a processor. The processor is configured to execute a program so as to cause the nozzle to reciprocally move along a zigzag path in a cleaning operation such that the nozzle passes from a side of the blade toward a side of the brush and from the side of the brush toward the side of the blade several times to contact at least one of the brush and the blade at different positions several times. The brush and the blade are disposed at a height at which the brush and the blade contact with the nozzle. The brush and the blade have a melting point higher than a plasticizing temperature of the plasticizing material and have hardness lower than hardness of the nozzle.
    Type: Grant
    Filed: January 25, 2022
    Date of Patent: July 16, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Tatsuo Akasaka
  • Patent number: 12036806
    Abstract: An ink jet recording method includes ejecting a radiation-curable ink jet composition to a recording medium from an ink jet head, and curing the ink jet composition ejected to the recording medium by irradiating with radiation from a LED irradiator having a peak wavelength of 250 to 310 nm to form a cured coating film. The ink jet composition contains a polymerizable compound and an ?-hydroxyketone-based initiator.
    Type: Grant
    Filed: December 27, 2021
    Date of Patent: July 16, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Toru Saito, Kiyoshi Nakamura, Toshiyuki Yoda, Midori Sekine
  • Patent number: 12041210
    Abstract: An image reading apparatus includes a platen on which a document is to be placed, an image sensor configured to read an image of the document on the platen, an opening/closing member configured to cover and uncover the platen, a document pressing layer disposed on a surface of the opening/closing member and configured to press the document on the plate when the opening/closing member covers the platen, elastic layers located between the document pressing layer and the opening/closing member and spaced apart from each other on a surface of the document pressing layer, and connection layers connecting the elastic layers to the opening/closing member. An area of the elastic layer is larger than an area of the connection layer.
    Type: Grant
    Filed: August 11, 2022
    Date of Patent: July 16, 2024
    Assignee: Seiko Epson Corporation
    Inventors: Koji Migita, Yutaro Kajitani, Masato Ogawa
  • Patent number: 12041391
    Abstract: A control method for a display device includes: determining whether an illuminance in an environment where a display device having a light source is installed belongs to a first range or a second range; when the illuminance in the environment belongs to the first range, adjusting a luminance of the light source by referring to first luminance information designating the luminance corresponding to when the illuminance in the environment belongs to the first range; when the illuminance in the environment belongs to the second range, adjusting the luminance by referring to second luminance information designating the luminance corresponding to when the illuminance in the environment belongs to the second range; when a first operation of changing the luminance when the illuminance belongs to the first range is accepted from a user, updating the first luminance information to an updated first luminance information in response to the first operation; updating the second luminance information, based on the updated f
    Type: Grant
    Filed: February 24, 2023
    Date of Patent: July 16, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Yasuhiro Nakamura, Yoshiteru Uchiyama, Takumi Takahashi, Akihiro Kashiwagi
  • Patent number: 12041393
    Abstract: A projector controlling method including projecting, by a projector, a projection image by using first setting values with the projector attached to a base apparatus that specifies the direction in which the projector projects projection light and the position where the projector is installed, changing the settings of the projector from the first setting values to second setting values when the projector is detached from the base apparatus, and changing the settings of the projector from the second setting values to the first setting values when the projector detects that the projector is attached to the base apparatus, and the set of first setting values and the set of second setting values each including a parameter relating to geometric correction of the projection image.
    Type: Grant
    Filed: November 16, 2022
    Date of Patent: July 16, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Eisuke Sakamoto
  • Patent number: 12036808
    Abstract: An ink jet recording method is a method in which a cyan ink, a magenta ink, a black ink, and a yellow ink radiation that are curable inks are ejected from ink jet heads to attach the radiation curable inks to a recording medium. The method includes, in this order, a first step of attaching the cyan ink, the magenta ink, and the black ink onto the recording medium and applying temporary curing radiation to the recording medium and a second step of attaching the yellow ink onto the recording medium and applying full curing radiation to the recording medium without applying the temporary curing radiation.
    Type: Grant
    Filed: March 23, 2022
    Date of Patent: July 16, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Kiyoshi Nakamura, Yoshinobu Yoshida, Chigusa Sato, Asako Kubota, Shohei Namikoshi, Tsuyoshi Sano
  • Patent number: 12038325
    Abstract: An optical filter includes a variable wavelength interference filter including a pair of reflection films and having a plurality of transmission peak wavelengths according to the dimension of the gap between the pair of reflection films and a fixed wavelength filter disposed so as to face the variable wavelength interference filter and having a plurality of filter regions different from one another in transmission wavelength segment. The plurality of transmission peak wavelengths of the variable wavelength interference filter correspond to the transmission wavelength segments of the plurality of filter regions, respectively. The plurality of transmission peak wavelengths of the variable wavelength interference filter each change within the corresponding transmission wavelength segment of the plurality of filter regions in accordance with a change in the gap dimension.
    Type: Grant
    Filed: September 23, 2021
    Date of Patent: July 16, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Kei Kudo
  • Patent number: 12038329
    Abstract: A color measurement apparatus includes an opening portion that is formed in an opening portion forming member arranged in a bottom portion of the apparatus and causes light arriving from a measurement target to enter inside the apparatus, a light emission portion that emits light for measurement toward the measurement target, and a shutter unit that is configured to switch between a closed state in which the opening portion is covered, and an open state in which the opening portion is open, and that has a reflection reference surface at a position facing the opening portion in the closed state as a reference of reflectance, in which the shutter unit is disposed such that the shutter unit is configured to switch to, in addition to the closed state and the open state, an exposed state in which the reflection reference surface is exposed outside the apparatus.
    Type: Grant
    Filed: March 3, 2022
    Date of Patent: July 16, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Toshio Miyake, Haruki Miyasaka, Kenichi Furuya, Hisayuki Akahane