Patents Assigned to Seiko Epson Corporation
  • Patent number: 10672359
    Abstract: A display driver includes amplifier circuits, D/A conversion circuits configured to output D/A conversion voltages to the amplifier circuits, a logic circuit, and signal line groups that couple the D/A conversion circuits to the logic circuit. The amplifier circuits are disposed in a direction D1. The D/A conversion circuits are disposed in the direction D1 on a direction D2 of the amplifier circuits. The logic circuit is disposed on the direction D2 of the D/A conversion circuits, and outputs first to n-th display data, with each display data being k bits, to the D/A conversion circuit on the signal line group in a time division manner.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: June 2, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Akihiro Tomie
  • Patent number: 10674042
    Abstract: A color measurement apparatus includes a color measurement portion, a carriage, and a movement mechanism the color measurement portion starts color measurement after a predetermined initialization process, a moving section between patches from a point P1 to a point P3 overlaps an initialization section where the spot moves at the time of performing the initialization process, and the moving section between the patches is a section between a forward point having a distance as a radius of the spot with respect to the X direction and a backward point having a distance as a radius of the spot with respect to the X direction, based on a boundary of the patches.
    Type: Grant
    Filed: May 2, 2018
    Date of Patent: June 2, 2020
    Assignee: Seiko Epson Corporation
    Inventor: Nozomu Hirokubo
  • Patent number: 10670856
    Abstract: An optical module includes a variable wavelength interference filter provided with a pair of reflecting films, and an electrostatic actuator configured to change a gap dimension between the pair of reflecting films, a driver configured to apply a periodic drive voltage to the electrostatic actuator, a gap detector configured to detect a gap dimension between the pair of reflecting films, and a light receiver configured to receive light from the variable wavelength interference filter. The light reception signal from the light receiver is detected at a predetermined timing from a detection timing of one of a maximum value and a minimum value of the gap dimension detected by the gap detector.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: June 2, 2020
    Assignee: Seiko Epson Corporation
    Inventor: Ryohei Kuri
  • Patent number: 10674126
    Abstract: A projector includes a first corrector that performs first correction that corrects distortion of an image on first image information to generate first corrected image information, a second corrector that performs second correction that corrects distortion of an image on second image information to generate second corrected image information, a combiner that combines the first corrected image information and the second corrected image information with each other to generate combined image information, and a projection section that projects an image according to the combined image information. The second correction differs from the first correction.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: June 2, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Susumu Ota
  • Patent number: 10672547
    Abstract: A soft magnetic powder of the invention has a composition represented by Fe100-a-b-c-d-e-fCuaSibBcMdM?eXf (at %) [wherein M is Nb, W, Ta, Zr, Hf, Ti, or Mo, M? is V, Cr, Mn, Al, a platinum group element, Sc, Y, Au, Zn, Sn, or Re, X is C, P, Ge, Ga, Sb, In, Be, or As, and a, b, c, d, e, and f are numbers that satisfy the following formulae: 0.1?a?3, 0<b?30, 0<c?25, 5?b+c?30, 0.1?d?30, 0?e?10, and 0?f?10], wherein a crystalline structure having a particle diameter of 1 nm or more and 30 nm or less is contained in an amount of 40 vol % or more, and the difference in the coercive force of the powder after classification satisfies predetermined conditions.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: June 2, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Yasuko Kudo, Toshiki Akazawa, Yu Maeda
  • Patent number: 10674108
    Abstract: An image display device is a self-luminous type device including a light emitting portion, and a casing portion of a display device unit has a heat dissipating structure portion through which a part of the image display device is exposed for heat dissipation. In manufacturing the display device unit, when performing simple and reliable assembly while securing a high heat dissipation characteristic, for example, by using characteristics of a silicon substrate, high accurate positioning is performed in a display device positioning portion.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: June 2, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takahiro Totani, Masayuki Takagi, Yoshitaka Hama
  • Patent number: 10670428
    Abstract: A circuit device adapted to perform detection of angular velocity observed by a capacitance type angular velocity transducer includes a drive device, a detection device, a vibration frequency controller adapted to variably control at least one of a detection frequency and a drive frequency of the capacitance type angular velocity transducer, and a storage adapted to store a correction parameter group adapted to correct a sensor characteristic of the capacitance type angular velocity transducer due to a variation of at least one of the detection frequency and the drive frequency.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: June 2, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Ryuta Nishizawa, Kei Kanemoto, Takayuki Kikuchi
  • Patent number: 10673143
    Abstract: An antenna structure (GPS antenna) includes a plate-shaped conductor element (antenna electrode), a plate-shaped element (circuit board) including a ground conductor portion disposed so as to overlap the conductor element in plan view, and a skeletal resin frame for frequency adjustment disposed between the conductor element and the ground conductor portion.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: June 2, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Seiji Osawa, Tadashi Aizawa
  • Patent number: 10670952
    Abstract: A wavelength converter to which the invention is applied includes a phosphor that converts the wavelength of blue light to emit fluorescence, a rotating mechanism that rotates the phosphor around an axis of rotation that extends in a light incident direction in which the blue light is incident, and a heat insulating member that is provided between the phosphor and the rotating mechanism in the light incident direction. The phosphor has a coinciding section that coincides with the rotating mechanism when viewed in the light incident direction.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: June 2, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Tetsuo Shimizu, Akira Egawa
  • Patent number: 10674020
    Abstract: A user of a control server 15 can be made aware of the need for a rule change. A control server 15 has an acquisition unit 401 that acquires printed text data containing the object values of multiple objects printed on roll paper according to a specific layout as text data corresponding to the specific layout; an analyzer 402 that executes a search process on the printed text data acquired by the acquisition unit 401 to find the object value of an object targeted by the search based on an analytical rule set that is set relationally to object of the search target; a detector 403 that detects change in the analytical rule set defined for the analyzer 402; and at least one of a control server display 43 or control server network communicator 41 that reports change in the analytical rule set.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: June 2, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Ryota Shimosato
  • Patent number: 10671023
    Abstract: A wrist apparatus as a portable electronic apparatus includes a case, a solar battery that is provided in the case and has an outer circumference along the outer edge of the case and an inner circumference the perimeter of which is shorter than that of the outer circumference, and an acceleration sensor that is provided in the case and disposed in a position where the acceleration sensor overlaps with the solar battery in a plan view of light receiving surface of the solar battery.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: June 2, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takehisa Uemura, Noriaki Hiraide
  • Patent number: 10673446
    Abstract: An atomic oscillator includes a semiconductor laser, an atomic cell, a light receiving element, a first temperature control element, a heat transfer member, and a second temperature control element. The laser includes a resonator and an insulation layer disposed around the resonator. The resonator includes a first mirror layer, a second mirror layer, and an active layer disposed between the first mirror layer and the second mirror layer. The atomic cell is irradiated with light emitted from the semiconductor laser. In the atomic cell, an alkali metal atom is accommodated. The light receiving element detects intensity of light transmitted through the atomic cell and outputs a detection signal. The first temperature control element controls a temperature of the semiconductor laser. The heat transfer member is disposed in the insulation layer. The second temperature control element is controlled based on the detection signal and is connected to the heat transfer member.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: June 2, 2020
    Assignee: Seiko Epson Corporation
    Inventor: Takashi Hagino
  • Patent number: 10669441
    Abstract: An aqueous ink jet ink composition includes resin fine particles, a non-ionic surfactant, a resin dissolving solvent, and water, in which, in the aqueous ink jet ink composition, a total acid value of an acid value of the resin fine particles and an acid value of the dispersant resin when the aqueous ink jet ink composition includes a dispersant resin is 200 (mg KOH/100 g ink) or less.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: June 2, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Akiko Matsuzaki, Mitsuaki Kosaka
  • Patent number: 10672276
    Abstract: An imaging display system including an imaging unit that images an image of outside of a riding device and outputs a video signal that indicates the image, a video signal processing unit that receives the video signal from the imaging unit and outputs a digital video signal based on the video signal that has been received, a central signal processing unit that receives the digital video signal from the video signal processing unit via a transmission line in the riding device, a display control unit that receives the digital video signal from the video signal processing unit, generates a display signal from the digital video signal that has been received, and outputs the display signal, and a display unit that displays an image that is indicated by the display signal that has been received from the display control unit is configured.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: June 2, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Ryuichi Shiohara
  • Patent number: 10673382
    Abstract: An oscillator includes an external terminal, a resonator, and an oscillation circuit that oscillates the resonator. The oscillation circuit includes an amplification circuit and a current source that supplies a current to the amplification circuit, and the current is variably set according to a control signal input from the external terminal.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: June 2, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Hisahiro Ito, Nobutaka Shiozaki, Seiichiro Tamura
  • Patent number: 10668724
    Abstract: A piezoelectric device includes an active portion of a piezoelectric layer interposed between a first electrode and a second electrode is provided independently for each of a first recessed portions, the first electrode forms an individual electrode provided independently for each of the active portions, the second electrode forms a common electrode commonly provided to a plurality of the active portions, in the piezoelectric layer, a second recessed portion which is provided outside the active portion and opens on a side opposite to a substrate is provided, and in a lamination direction of the substrate and the piezoelectric element, a vibration plate has a nitride film as an uppermost layer on the second electrode side at least in a region overlapping a bottom surface of the second recessed portion.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: June 2, 2020
    Assignee: Seiko Epson Corporation
    Inventor: Motoki Takabe
  • Patent number: 10670401
    Abstract: A gyro sensor includes: a substrate; a fixed portion that is fixed to the substrate; a driving portion that is driven in a first direction oriented along a first axis; a mass portion that is connected to the driving portion and is displaced in the first direction; and an elastic portion that is connected to the mass portion and the fixed portion. The mass portion includes a detection portion that is displaceable in a second direction oriented along a second axis orthogonal to the first axis by a Coriolis force to act. An outer circumference surface of the elastic portion includes a main surface, a side surface, and a connection surface connecting the main surface to the side surface. The connection surface has a curved surface portion with a curved surface shape.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: June 2, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Teruo Takizawa, Takayuki Kikuchi
  • Patent number: 10670949
    Abstract: A projector includes a light source apparatus, an image formation apparatus that includes a light modulator and forms an image, the light modulator modulating light outputted from the light source apparatus, a projection optical apparatus that projects the image formed by the image formation apparatus, and an attitude adjustment apparatus that causes the light modulator to pivot around a pivotal axis perpendicular to the optical axis of the projection optical apparatus to adjust the attitude of the light modulator.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: June 2, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Tetsuya Tamura, Takuya Hatano
  • Patent number: 10670953
    Abstract: A light source device is provided with a blue laser emitting element, a red laser emitting element, a phosphor, a polarization split element having a polarization split function with respect to blue light and red light, and a diffusion element. The blue light emitted from the blue laser emitting element enters the polarization split element to be split into a first blue polarization component and a second blue polarization component. The first blue polarization component enters the diffusion element to turn to blue diffused light. The phosphor is excited by the second blue polarization component to emit fluorescence, and the red light emitted from the red laser emitting element enters the diffusion element to be diffusely transmitted to turn to red diffused light. The blue diffused light, the red diffused light and a part of the fluorescence are combined with each other, and then emitted from the polarization split element.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: June 2, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Shoichi Uchiyama
  • Patent number: 10672143
    Abstract: A method includes steps of: (a) causing a display device to display an image of a real object based on captured image data of a real object; (b) causing the display device to display a 2D model obtained from a projection of a 3D model corresponding to the real object based at least on a view; and (c) storing appearance data of the real object and data of the 2D model into a memory device while associating the appearance data and the data of the 2D model with each other after the real object and the 2D model are displayed so as to be aligned with or substantially aligned with each other by the display device.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: June 2, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Joseph Chitai Lam, Syed Alimul Huda, Jennifer Jianing Sun