Patents by Inventor Yoshio Arai

Yoshio Arai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20160372060
    Abstract: A display device includes an illumination unit that delivers a first light, a second light and a third light. The display also includes a driving circuit that supplies a pixel with a first data signal for displaying a first image by illuminating the first light, the driving circuit supplying the pixel with a second data signal for displaying a second image by illuminating the second light, the driving circuit supplying the pixel with a third data signal for displaying a third image by illuminating the third light.
    Type: Application
    Filed: August 31, 2016
    Publication date: December 22, 2016
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Yoshio ARAI, Akira NAKAJIMA
  • Publication number: 20160317125
    Abstract: An ultrasonic device unit includes ultrasonic transducers disposed in an array. A first multiplexer is connected to the ultrasonic transducers through N element side wiring lines, which are aligned in a first direction along the contour of an element array in plan view, and connects M (M<N) circuit side wiring lines selectively to the element side wiring lines. A second multiplexer is connected to the ultrasonic transducers through L element side wiring lines, which are aligned in a second direction along the contour of the element array in plan view, and connects K (K<L) circuit side wiring lines selectively to the element side wiring lines.
    Type: Application
    Filed: April 28, 2016
    Publication date: November 3, 2016
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Yoshio ARAI
  • Publication number: 20160314751
    Abstract: A display device includes an illumination unit that delivers a first light, a second light and a third light. The display also includes a driving circuit that supplies a pixel with a first data signal for displaying a first image by illuminating the first light, the driving circuit supplying the pixel with a second data signal for displaying a second image by illuminating the second light, the driving circuit supplying the pixel with a third data signal for displaying a third image by illuminating the third light.
    Type: Application
    Filed: July 6, 2016
    Publication date: October 27, 2016
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Yoshio ARAI, Akira NAKAJIMA
  • Publication number: 20160253947
    Abstract: A display device includes an illumination unit that delivers a first light, a second light and a third light. The display also includes a driving circuit that supplies a pixel with a first data signal for displaying a first image by illuminating the first light, the driving circuit supplying the pixel with a second data signal for displaying a second image by illuminating the second light, the driving circuit supplying the pixel with a third data signal for displaying a third image by illuminating the third light.
    Type: Application
    Filed: May 11, 2016
    Publication date: September 1, 2016
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Yoshio ARAI, Akira NAKAJIMA
  • Publication number: 20160148584
    Abstract: A display device includes an illumination unit that delivers a first light, a second light and a third light. The display also includes a driving circuit that supplies a pixel with a first data signal for displaying a first image by illuminating the first light, the driving circuit supplying the pixel with a second data signal for displaying a second image by illuminating the second light, the driving circuit supplying the pixel with a third data signal for displaying a third image by illuminating the third light.
    Type: Application
    Filed: January 28, 2016
    Publication date: May 26, 2016
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Yoshio ARAI, Akira NAKAJIMA
  • Publication number: 20160120515
    Abstract: An ultrasonic measurement device 100 includes a pulse signal output circuit 110 that outputs a pulse signal having a rectangular wave based on a clock signal, and a resonance circuit 120 that is connected to an output node of the pulse signal output circuit 110, includes an ultrasonic transducer element, and has frequency characteristics of a low-pass filter. Also, the pulse signal output circuit 110 outputs a plurality of pulse signals that are different from each other in at least one of pulse signal voltage, pulse signal width, and pulse output timing.
    Type: Application
    Filed: October 22, 2015
    Publication date: May 5, 2016
    Inventor: Yoshio ARAI
  • Patent number: 9280950
    Abstract: A display device includes an illumination unit that delivers a first light, a second light and a third light. The display also includes a driving circuit that supplies a pixel with a first data signal for displaying a first image by illuminating the first light, the driving circuit supplying the pixel with a second data signal for displaying a second image by illuminating the second light, the driving circuit supplying the pixel with a third data signal for displaying a third image by illuminating the third light.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: March 8, 2016
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Yoshio Arai, Akira Nakajima
  • Patent number: 8654169
    Abstract: An image forming device includes: an exposure head that includes a light emitting element and a light emission controller that causes the light emitting element to emit light on the basis of a control signal; a photoreceptor that is exposed to the light emitted by the light emitting element included in the exposure head so that a latent image is formed on the photoreceptor; a correcting section that corrects the control signal on the basis of the spectral sensitivity of the photoreceptor to a spectral distribution of the light emitting element; and a developing section that develops the latent image formed on the photoreceptor.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: February 18, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Yoshio Arai, Nozomu Inoue
  • Patent number: 8373735
    Abstract: Provided is a line head including: a light emitting device array in which N (N is an integer of 2 or more) light emitting device groups including a plurality of light emitting devices is arranged; an output unit which sequentially outputs driving signals for driving the light emitting devices of the light emitting device groups to the light emitting device groups; and a delay unit which delays input timings when the driving signals output from the output unit are input to the light emitting devices, wherein the delay unit delays the input timings of the 1 to (N?1)th driving signals output from the output unit to the input timings of the Nth driving signals output from the output unit, and allows the light emitting devices of the different light emitting device groups simultaneously to emit light.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: February 12, 2013
    Assignee: Seiko Epson Corporation
    Inventors: Yoshio Arai, Yujiro Nomura
  • Patent number: 8289228
    Abstract: A display device includes a display body in which a plurality of unit display areas that display images having a parallax therebetween so as to be viewed stereoscopically is arranged and a drive circuit that sequentially displays single-color images of a plurality of color components which constitute a first image and a second image having a parallax therebetween for each one or more of unit display areas among the plurality of unit display areas.
    Type: Grant
    Filed: April 7, 2008
    Date of Patent: October 16, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Yoshio Arai
  • Patent number: 8264509
    Abstract: An exposure head includes a light emitting segment that emits light; an electrical load that is electrically connected to a circuit in which a current to be supplied to the light emitting segment flows; and a current supply controller that supplies a first current to the light emitting segment to cause the light emitting segment to emit light and supplies a second current to the electrical load during the time when the current supply controller blocks the supply of the first current to the light emitting segment.
    Type: Grant
    Filed: January 26, 2010
    Date of Patent: September 11, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Nozomu Inoue, Yoshio Arai, Kiyoshi Tsujino
  • Publication number: 20110090297
    Abstract: An image forming device includes: an exposure head that includes a light emitting element and a light emission controller that causes the light emitting element to emit light on the basis of a control signal; a photoreceptor that is exposed to the light emitted by the light emitting element included in the exposure head so that a latent image is formed on the photoreceptor; a correcting section that corrects the control signal on the basis of the spectral sensitivity of the photoreceptor to a spectral distribution of the light emitting element; and a developing section that develops the latent image formed on the photoreceptor.
    Type: Application
    Filed: September 17, 2010
    Publication date: April 21, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Yoshio ARAI, Nozomu INOUE
  • Publication number: 20100225731
    Abstract: An exposure head includes a light emitting segment that emits light; an electrical load that is electrically connected to a circuit in which a current to be supplied to the light emitting segment flows; and a current supply controller that supplies a first current to the light emitting segment to cause the light emitting segment to emit light and supplies a second current to the electrical load during the time when the current supply controller blocks the supply of the first current to the light emitting segment.
    Type: Application
    Filed: January 26, 2010
    Publication date: September 9, 2010
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Nozomu INOUE, Yoshio ARAI, Kiyoshi TSUJINO
  • Publication number: 20100135683
    Abstract: Provided is a line head including: a light emitting device array in which N (N is an integer of 2 or more) light emitting device groups including a plurality of light emitting devices is arranged; an output unit which sequentially outputs driving signals for driving the light emitting devices of the light emitting device groups to the light emitting device groups; and a delay unit which delays input timings when the driving signals output from the output unit are input to the light emitting devices, wherein the delay unit delays the input timings of the 1 to (N?1)th driving signals output from the output unit to the input timings of the Nth driving signals output from the output unit, and allows the light emitting devices of the different light emitting device groups simultaneously to emit light.
    Type: Application
    Filed: November 18, 2009
    Publication date: June 3, 2010
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Yoshio Arai, Yujiro Nomura
  • Publication number: 20100086331
    Abstract: An exposure head includes a substrate through which light from light-emitting elements provided on a first surface of the substrate penetrates from the first surface to a second surface. A rod lens array is provided on the second surface of the substrate to image the light from the second surface. A light transparent member is provided between the substrate and the rod lens array and fixed to the second surface of the substrate and the rod lens array. A support member supports the first surface of the substrate.
    Type: Application
    Filed: October 5, 2009
    Publication date: April 8, 2010
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Nozomu INOUE, Yoshio ARAI, Kiyoshi TSUJINO
  • Publication number: 20100067954
    Abstract: A line head includes: a support member; a light emitting substrate unit having a first substrate supported by the support member and a plurality of light emitting elements arranged in a first direction of the first substrate; a circuit board unit having a second substrate and at least one interface circuit, which is provided to the second substrate, and to which at least one signal for driving the light emitting elements is input; and a flexible printed circuit board having a wiring pattern adapted to electrically connect the light emitting substrate unit and the circuit board unit to each other, wherein the flexible printed circuit board is disposed so as to be connected at an end of the second substrate in a second direction one of perpendicular and substantially perpendicular to the first direction, and is folded back from one end to the other end.
    Type: Application
    Filed: September 2, 2009
    Publication date: March 18, 2010
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Nozomu INOUE, Yoshio ARAI, Kiyoshi TSUJINO
  • Publication number: 20100045768
    Abstract: An exposure head includes a substrate in which a first light emitting device and a second light emitting device are arranged in a direction parallel or substantially parallel to a moving direction of an exposed side to the imaged light. An imaging optical system is provided for imaging light from the first light emitting device and the second light emitting device to expose the exposed side. A control unit selects one light emitting device from the first light emitting device and the second light emitting device, allowing the selected light emitting device to emit light in accordance with a driving signal, and allowing the non-selected light emitting device to not emit light.
    Type: Application
    Filed: August 19, 2009
    Publication date: February 25, 2010
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Yoshio ARAI, Nozomu INOUE
  • Publication number: 20080258997
    Abstract: A display device includes a display body in which a plurality of unit display areas that display images having a parallax therebetween so as to be viewed stereoscopically is arranged and a drive circuit that sequentially displays single-color images of a plurality of color components which constitute a first image and a second image having a parallax therebetween for each one or more of unit display areas among the plurality of unit display areas.
    Type: Application
    Filed: April 7, 2008
    Publication date: October 23, 2008
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Yoshio ARAI
  • Publication number: 20080259099
    Abstract: The invention provides a display device that includes: a separating section that generates a separation image signal, which specifies the gradations of a plurality of color components and the gradations of a plurality of white components, from an input image signal, which specifies the gradations of a plurality of primary color components for each of a plurality of pixels; and a displaying section that displays a single-color image corresponding to one of the color components and the white components sequentially on the basis of the generated separation image signal in each of a plurality of subfields allocated in a frame in such a manner that subfields corresponding to each of the plurality of the white components are distanced from each other or one another on a time axis.
    Type: Application
    Filed: April 8, 2008
    Publication date: October 23, 2008
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Yoshio ARAI, Akira NAKAJIMA
  • Publication number: 20080111879
    Abstract: A method for determining a correction value used for correction of energy of light emitted from each of a plurality of light-emitting elements for exposing a surface to be exposed, the light-emitting elements being arranged in a first direction, is provided. The method includes identifying, from among a plurality of spot regions formed on the surface in response to the light being emitted from the plurality of light-emitting elements, an elongated spot region whose major axis extends in a direction inclined with respect to the first direction and determining a correction value such that a dimension of the identified spot region in a direction of the major axis is made to be equal or close to a target value.
    Type: Application
    Filed: August 3, 2007
    Publication date: May 15, 2008
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Yoshio ARAI, Nozomu INOUE