Patents Assigned to Seiko Epson Corporation
  • Patent number: 11975532
    Abstract: Provided are: a holding unit configured to rotatably hold a roll body on which a medium is wound; a transport unit configured to transport the medium unwound from the roll body; a tension applying unit configured to press the medium between the holding unit and the transport unit to apply tension to the medium; a driving portion configured to provide driving force to the tension applying unit; a control unit configured to control the transport unit and the driving portion; and a detector configured to detect a load applied to the transport unit, and the control unit controls the driving force by the driving portion on the basis of the load detected by the detector to adjust the tension applied to the medium.
    Type: Grant
    Filed: August 2, 2022
    Date of Patent: May 7, 2024
    Assignee: Seiko Epson Corporation
    Inventors: Daisuke Fujiwara, Ryo Hamano
  • Patent number: 11975537
    Abstract: A liquid ejecting apparatus including an ejector configured to eject a liquid with displacement of a piezoelectric element, a generator configured to generate a driving signal, which has a first waveform, for displacing the piezoelectric element in a first direction, and a second waveform, for displacing the piezoelectric element in a second direction opposite to the first direction, and a detector configured to detect a vibration remaining in the ejector in a detection time period starting after completion of the second time period. The difference between a duration from the first time point to the second time point and a duration that is a natural number times the period of a vibration produced in the ejector is shorter than one quarter times the period of the vibration produced in the ejector.
    Type: Grant
    Filed: March 29, 2022
    Date of Patent: May 7, 2024
    Assignee: Seiko Epson Corporation
    Inventor: Osamu Shinkawa
  • Patent number: 11975936
    Abstract: A printer includes a guide frame, a deforming section, and a lever member. The guide frame includes a transport path. The deforming section includes a toothed roller, a supporting holder, and a torsion spring and deforms paper. The toothed roller comes into contact with the paper discharged from the transport path. The supporting holder is configured to pivot between a first position at which the toothed roller is located on the transport path and a second position at which the toothed roller is not located on the transport path. The torsion spring presses the supporting holder from the second position to the first position. The lever member is configured to switch between a regulating state in which pivoting of the supporting holder at the first position or the second position is regulated and a non-regulating state in which pivoting of the supporting holder is not regulated.
    Type: Grant
    Filed: March 21, 2022
    Date of Patent: May 7, 2024
    Assignee: Seiko Epson Corporation
    Inventor: Hidetoshi Kodama
  • Patent number: 11975542
    Abstract: A liquid absorber of the present disclosure includes: a first base material; a second base material; and an absorption layer provided between the first base material and the second base material, in which the first base material and the second base material both contain a flame-retardant filament nonwoven fabric, and a content of a flame retardant in the absorption layer is less than 10% by mass.
    Type: Grant
    Filed: May 25, 2022
    Date of Patent: May 7, 2024
    Assignee: Seiko Epson Corporation
    Inventor: Hidehiro Takano
  • Patent number: 11975906
    Abstract: Provided is a cushioning material for being put into a packing box configured for encasement of electronic equipment. The cushioning material absorbs external stress applied to the electronic equipment encased in the packing box. The cushioning material includes: a first holder including a first plate configured to face the electronic equipment when the cushioning material and the electronic equipment are encased in the packing box, and a second plate configured to face an inner wall surface of the packing box when the cushioning material and the electronic equipment are encased in the packing box; and a first cushioning block provided between the first plate and the second plate.
    Type: Grant
    Filed: November 7, 2022
    Date of Patent: May 7, 2024
    Assignee: Seiko Epson Corporation
    Inventors: Shinya Kamigaki, Sanshiro Takeshita, Haoki Fushimi
  • Patent number: 11975548
    Abstract: A recording apparatus includes a housing, a recording unit that is accommodated in the housing and that performs recording on a medium, a medium supply port that is provided in an upper portion of the housing, and where the medium is set to supply the medium toward the recording unit, and a medium support member that supports the medium set in the medium supply port, wherein the medium support member includes a first support member configured to be opened and closed with respect to the medium supply port and a second support member that rotatably supports the first support member, and the recording apparatus includes a biasing mechanism configured to, when the first support member is in a closed state with respect to the medium supply port, bias the first support member in a first direction toward the housing which faces a distal end portion of the first support member.
    Type: Grant
    Filed: March 29, 2022
    Date of Patent: May 7, 2024
    Assignee: Seiko Epson Corporation
    Inventors: Saeful Azhar, Erik Hidayat
  • Patent number: 11976923
    Abstract: A physical quantity detection circuit includes: an analog/digital conversion circuit performing analog/digital conversion processing on an analog signal based on an output signal from a physical quantity detection element and outputting a first digital signal; a digital arithmetic circuit having the first digital signal inputted thereto, performing arithmetic processing on the first digital signal, and outputting a second digital signal; and a regulator circuit supplying a power-supply voltage to the analog/digital conversion circuit and the digital arithmetic circuit. The digital arithmetic circuit does not perform an arithmetic processing start operation to start the arithmetic processing and an arithmetic processing end operation to end the arithmetic processing, during an analog/digital conversion period when the analog/digital conversion is performed.
    Type: Grant
    Filed: March 11, 2021
    Date of Patent: May 7, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Atsushi Tanaka, Katsuhito Nakajima
  • Patent number: 11976204
    Abstract: A composition for aqueous ink jet contains a specific dye which is one or more coloring materials selected from the group consisting of C. I. Acid Black 172 and C. I. Acid Black 194, and a specific aromatic compound which is at least one compound selected from the group consisting of compounds represented by formulae (1) to (4) below. The content of the specific aromatic compound relative to 100 parts by mass of the specific dye is 0.2 parts by mass or more and 50 parts by mass or less.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: May 7, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Homare Kuribayashi, Shotaro Watanabe, Kei Hiruma, Masato Hanamura, Koji Imamura, Jungo Asano
  • Patent number: 11975937
    Abstract: A feeding unit includes: a retard roller; a holder section; a protruding section; an accommodating section; a pressing section; a first restricting section; and a second restricting section. The holder section rotatably holds the retard roller. The protruding section serves as a rocking fulcrum of the holder section. The accommodating section accommodates the holder section. The pressing section presses the holder section. The first restricting section restricts movement of the holder section in a retreating direction. The second restricting section restricts movement of the holder section in a direction opposite to the retreating direction. The pressing section is arranged so as to deviate in a Y direction with respect to a virtual line passing through a middle point of the protruding section and a middle point of the first restricting section. The holder section comes into contact with the first restricting section and the second restricting section.
    Type: Grant
    Filed: December 6, 2021
    Date of Patent: May 7, 2024
    Assignee: Seiko Epson Corporation
    Inventors: Katsuyuki Kondo, Junko Ao
  • Patent number: 11979124
    Abstract: A charge amplifier includes: an input line thorough which an electric charge signal is propagated; an integration circuit including an input terminal coupled to the input line and an output terminal that outputs the voltage signal; a reset switch configured to reset the voltage signal by closing between the input terminal and the output terminal; a leakage current correction circuit including a first resistance circuit and a first switch coupled in series in this order between a first node, which has a first potential different from a potential of the input line, and the input line; and a control circuit configured to control the first switch based on the voltage signal so as to cancel at least a part of a leakage current flowing through the integration circuit.
    Type: Grant
    Filed: March 10, 2021
    Date of Patent: May 7, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Noriyuki Osumi
  • Patent number: 11979540
    Abstract: An image reading system includes an image reading apparatus including a transport unit configured to transport a document from a bundle of cut documents one by one, a reading unit configured to read an image of the transported document, and a reading control unit, and an external control unit included in an external device coupled to the image reading apparatus, wherein an inclination correction process that corrects an inclination of the image of the document, a size determination process that determines a size of the image as a standard for the bundle of documents, and a size correction process that corrects the size of the image of the document to a specific size determined by the size determination process are performed.
    Type: Grant
    Filed: December 23, 2022
    Date of Patent: May 7, 2024
    Assignee: Seiko Epson Corporation
    Inventor: Yuji Kohama
  • Patent number: 11976974
    Abstract: A spectroscopic camera includes a spectroscopic element and a light receiver, and a method for correcting the spectroscopic camera includes causing light having a first wave number from a spectroscopic light source to be incident on the spectroscopic element, causing the light receiver to receive light having a second wave number and outputted from the spectroscopic element, generating a matrix representing the spectral characteristics of the light having the second wave number based on the output from the light receiver, and generating a correction matrix based on the inverse matrix of the matrix and storing the correction matrix in a storage section.
    Type: Grant
    Filed: May 18, 2022
    Date of Patent: May 7, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Tsugio Gomi
  • Patent number: 11978298
    Abstract: A magnetic sheet includes a sheet, line-shaped N first magnetic members arranged on the sheet and having magnetic properties, and line-shaped N second magnetic members arranged on the sheet and having magnetic properties, where N denotes the number of the first magnetic members and denotes the number of the second magnetic members.
    Type: Grant
    Filed: September 27, 2021
    Date of Patent: May 7, 2024
    Assignee: Seiko Epson Corporation
    Inventors: Sotaro Oana, Makoto Omura, Toshiaki Yamagami
  • Publication number: 20240142834
    Abstract: An electro-optical device includes a substrate; a transistor including a semiconductor layer and a gate electrode, the semiconductor layer including a drain region to which a pixel potential is applied and extending in a first direction; a scanning line electrically coupled to the gate electrode; a first insulating layer disposed between the scanning line and the gate electrode; and a light-blocking part with a light-blocking property. The semiconductor layer, the gate electrode, the first insulating layer, and the scanning line are arranged in this order from the substrate. The light-blocking part surrounds the semiconductor layer as viewed in the first direction. The light-blocking part includes a first portion disposed at the first insulating layer. The pixel potential is applied to the light-blocking part.
    Type: Application
    Filed: October 29, 2023
    Publication date: May 2, 2024
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Takafumi EGAMI
  • Publication number: 20240146888
    Abstract: A projection method including: when executing a first adjustment including correction of a shape of a first projection image to be projected by a projector, updating a first setting value for correcting the shape of the first projection image by receiving an operation of changing the shape of the first projection image; and projecting, from the projector, a third projection image in which the shape of the first projection image is corrected based on the first setting value and a luminance of an overlapping area in the first projection image is not corrected, the overlapping area being an area where a second projection image projected by another projector different from the projector and the first projection image overlap with each other.
    Type: Application
    Filed: October 26, 2023
    Publication date: May 2, 2024
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Ippei KUROTA
  • Publication number: 20240147762
    Abstract: A light emitting device includes a transistor, a light reflection layer, a first insulation layer that includes a first layer thickness part, a second layer thickness part, and a third layer thickness part, a pixel electrode that is provided on the first insulation layer, a second insulation layer that covers a peripheral section of the pixel electrode, a light emission functional layer, a facing electrode, and a conductive layer that is provided on the first layer thickness part. The pixel electrode includes a first pixel electrode which is provided in the first layer thickness part, a second pixel electrode which is provided in the second layer thickness part, and a third pixel electrode which is provided in the third layer thickness part. The first pixel electrode, the second pixel electrode, and the third pixel electrode are connected to the transistor through the conductive layer.
    Type: Application
    Filed: December 22, 2023
    Publication date: May 2, 2024
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takeshi KOSHIHARA, Ryoichi NOZAWA
  • Publication number: 20240142780
    Abstract: A virtual image display device includes a first image display device configured to display a virtual image, a second image display device configured to display a virtual image, a line-of-sight direction distance detection device configured to detect an object distance in a line-of-sight direction of a wearer, an image display control unit configured to control display states of the first image display device and the second image display device in accordance with the object distance, and a liquid crystal lens configured to be disposed in front of eyes of the wearer and configured such that a focal length changes with respect to a s-polarization component of image light emitted from the first image display device and the second image display device.
    Type: Application
    Filed: October 25, 2023
    Publication date: May 2, 2024
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takashi TAKEDA, Atsushi SAITO
  • Publication number: 20240142839
    Abstract: Included are a transistor, a pixel electrode provided corresponding to the transistor, a lens layer provided at a layer between the transistor and the pixel electrode, a light transmitting layer provided at a layer between the lens layer and the pixel electrode, and planarized together with the lens layer, a relay layer provided at a layer between the transistor and the lens layer, and another relay layer provided at a layer between the light transmitting layer and the pixel electrode, and electrically connected to the relay layer via a contact hole.
    Type: Application
    Filed: October 25, 2023
    Publication date: May 2, 2024
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Yuki YASHIRO
  • Publication number: 20240144505
    Abstract: A measurement method including generating first restoration information representing a Euclidean restoration result for a first region of a screen that is a non-planar surface based on a first image that is one of an image input to a first apparatus including a first lens and having known internal parameters relating to the first lens and an image output from the first apparatus, and a second image that is one of an image input to a second apparatus including a second lens and having known internal parameters relating to the second lens and an image output from the second apparatus, generating second restoration information representing a projection restoration result for a second region of the screen based on a third image that is one of an image input to a third apparatus including a third lens and having unknown internal parameters relating to the third lens and an image output from the third apparatus, and the first image, generating a three-dimensional projective transformation matrix for transforming th
    Type: Application
    Filed: October 27, 2023
    Publication date: May 2, 2024
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Hiroki SENSHIKI
  • Publication number: 20240145490
    Abstract: Provided are a transistor, a pixel electrode provided corresponding to the transistor, a relay layer provided at a layer between the transistor and the pixel electrode and including, in this order from the pixel electrode side, a metal material layer containing a metal material, an insulating material layer containing an insulating material, and a metal material layer containing a metal material, and a lens layer provided at a layer between the relay layer and the pixel electrode and including a contact hole for electrically connecting the relay layer and the pixel electrode, and in the relay layer, portions of the metal material layer and the insulating material layer overlapping the contact hole are removed.
    Type: Application
    Filed: October 29, 2023
    Publication date: May 2, 2024
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Masahito YOSHII