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).
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Publication number: 20160372060Abstract: 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: ApplicationFiled: August 31, 2016Publication date: December 22, 2016Applicant: SEIKO EPSON CORPORATIONInventors: Yoshio ARAI, Akira NAKAJIMA
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Publication number: 20160317125Abstract: 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: ApplicationFiled: April 28, 2016Publication date: November 3, 2016Applicant: SEIKO EPSON CORPORATIONInventor: Yoshio ARAI
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Publication number: 20160314751Abstract: 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: ApplicationFiled: July 6, 2016Publication date: October 27, 2016Applicant: SEIKO EPSON CORPORATIONInventors: Yoshio ARAI, Akira NAKAJIMA
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Publication number: 20160253947Abstract: 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: ApplicationFiled: May 11, 2016Publication date: September 1, 2016Applicant: SEIKO EPSON CORPORATIONInventors: Yoshio ARAI, Akira NAKAJIMA
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Publication number: 20160148584Abstract: 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: ApplicationFiled: January 28, 2016Publication date: May 26, 2016Applicant: SEIKO EPSON CORPORATIONInventors: Yoshio ARAI, Akira NAKAJIMA
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Publication number: 20160120515Abstract: 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: ApplicationFiled: October 22, 2015Publication date: May 5, 2016Inventor: Yoshio ARAI
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Patent number: 9280950Abstract: 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: GrantFiled: November 30, 2012Date of Patent: March 8, 2016Assignee: SEIKO EPSON CORPORATIONInventors: Yoshio Arai, Akira Nakajima
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Patent number: 8654169Abstract: 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: GrantFiled: September 17, 2010Date of Patent: February 18, 2014Assignee: Seiko Epson CorporationInventors: Yoshio Arai, Nozomu Inoue
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Patent number: 8373735Abstract: 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: GrantFiled: November 18, 2009Date of Patent: February 12, 2013Assignee: Seiko Epson CorporationInventors: Yoshio Arai, Yujiro Nomura
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Patent number: 8289228Abstract: 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: GrantFiled: April 7, 2008Date of Patent: October 16, 2012Assignee: Seiko Epson CorporationInventor: Yoshio Arai
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Patent number: 8264509Abstract: 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: GrantFiled: January 26, 2010Date of Patent: September 11, 2012Assignee: Seiko Epson CorporationInventors: Nozomu Inoue, Yoshio Arai, Kiyoshi Tsujino
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Publication number: 20110090297Abstract: 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: ApplicationFiled: September 17, 2010Publication date: April 21, 2011Applicant: SEIKO EPSON CORPORATIONInventors: Yoshio ARAI, Nozomu INOUE
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Publication number: 20100225731Abstract: 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: ApplicationFiled: January 26, 2010Publication date: September 9, 2010Applicant: SEIKO EPSON CORPORATIONInventors: Nozomu INOUE, Yoshio ARAI, Kiyoshi TSUJINO
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Publication number: 20100135683Abstract: 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: ApplicationFiled: November 18, 2009Publication date: June 3, 2010Applicant: SEIKO EPSON CORPORATIONInventors: Yoshio Arai, Yujiro Nomura
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Publication number: 20100086331Abstract: 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: ApplicationFiled: October 5, 2009Publication date: April 8, 2010Applicant: SEIKO EPSON CORPORATIONInventors: Nozomu INOUE, Yoshio ARAI, Kiyoshi TSUJINO
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Publication number: 20100067954Abstract: 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: ApplicationFiled: September 2, 2009Publication date: March 18, 2010Applicant: SEIKO EPSON CORPORATIONInventors: Nozomu INOUE, Yoshio ARAI, Kiyoshi TSUJINO
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Publication number: 20100045768Abstract: 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: ApplicationFiled: August 19, 2009Publication date: February 25, 2010Applicant: SEIKO EPSON CORPORATIONInventors: Yoshio ARAI, Nozomu INOUE
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Publication number: 20080258997Abstract: 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: ApplicationFiled: April 7, 2008Publication date: October 23, 2008Applicant: SEIKO EPSON CORPORATIONInventor: Yoshio ARAI
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Publication number: 20080259099Abstract: 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: ApplicationFiled: April 8, 2008Publication date: October 23, 2008Applicant: SEIKO EPSON CORPORATIONInventors: Yoshio ARAI, Akira NAKAJIMA
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Publication number: 20080111879Abstract: 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: ApplicationFiled: August 3, 2007Publication date: May 15, 2008Applicant: SEIKO EPSON CORPORATIONInventors: Yoshio ARAI, Nozomu INOUE