Patents by Inventor Yoshihisa Sato
Yoshihisa Sato 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: 20190049075Abstract: A light source unit according to an embodiment of the disclosure includes a substrate configured to be rotatable, a phosphor layer disposed at a center of the substrate, a light source that irradiates the phosphor layer with exciting light, and a support section that supports a portion, of the substrate, except for the center of the substrate. This makes it difficult for heat generated in the phosphor layer to travel to a motor through the substrate.Type: ApplicationFiled: April 20, 2016Publication date: February 14, 2019Inventors: MASAHIRO ISHIGE, IZUSHI KOBAYASHI, YOSHIHISA SATO, HIROKI MORITA
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Publication number: 20180376118Abstract: A first projection display apparatus includes a color separator (41A) that has first and second incident surfaces (S1a and S1b), and allows light in first to third wavelength bands to pass therethrough or reflects the light in the first to third wavelength bands; first to third reflective light modulators (15); a first polarization splitter (12G); a second polarization splitter (12RB); and a projection optical system (19). Light in at least one of the first to third wavelength bands enters the first incident surface of the color separator as first polarized light, and light in the other wavelength bands enters the second incident surface of the color separator as second polarized light orthogonal to the first polarized light.Type: ApplicationFiled: August 31, 2018Publication date: December 27, 2018Inventors: YOSHIHISA SATO, HIROYUKI YANAGISAWA, MASA TANAKA, RYO MIYAO
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Patent number: 10091478Abstract: A first projection display apparatus includes a color separator (41A) that has first and second incident surfaces (S1a and S1b), and allows light in first to third wavelength bands to pass therethrough or reflects the light in the first to third wavelength bands; first to third reflective light modulators (15); a first polarization splitter (12G); a second polarization splitter (12RB); and a projection optical system (19). Light in at least one of the first to third wavelength bands enters the first incident surface of the color separator as first polarized light, and light in the other wavelength bands enters the second incident surface of the color separator as second polarized light orthogonal to the first polarized light.Type: GrantFiled: April 15, 2016Date of Patent: October 2, 2018Assignee: SONY CORPORATIONInventors: Yoshihisa Sato, Hiroyuki Yanagisawa, Masa Tanaka, Ryo Miyao
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Publication number: 20180135816Abstract: An illuminating unit according to an embodiment of the disclosure includes: a mounting member; a light source section that is aligned on the mounting member, and has one or more solid-state light sources that emit light in a predetermined wavelength band; and an optical conversion section that is coupled to the light source section, and converts outgoing light emitted from the solid-state light source into light in a wavelength band that is different from the wavelength band of the outgoing light.Type: ApplicationFiled: March 28, 2016Publication date: May 17, 2018Inventors: MASAHIRO ISHIGE, MOTOSUKE OHMI, IZUSHI KOBAYASHI, YOSHIHISA SATO
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Publication number: 20180131917Abstract: A first projection display apparatus includes a color separator (41A) that has first and second incident surfaces (S1a and S1b), and allows light in first to third wavelength bands to pass therethrough or reflects the light in the first to third wavelength bands; first to third reflective light modulators (15); a first polarization splitter (12G); a second polarization splitter (12RB); and a projection optical system (19). Light in at least one of the first to third wavelength bands enters the first incident surface of the color separator as first polarized light, and light in the other wavelength bands enters the second incident surface of the color separator as second polarized light orthogonal to the first polarized light.Type: ApplicationFiled: April 15, 2016Publication date: May 10, 2018Inventors: YOSHIHISA SATO, HIROYUKI YANAGISAWA, MASA TANAKA, RYO MIYAO
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Patent number: 9299298Abstract: The purpose of the present invention is to provide a three dimensional image display device capable of preventing the generation of crosstalk. The three dimensional image display device according to the present invention includes a display panel having a plurality of pixels, a backlight capable of partially illuminating the display panel, and a drive circuit for driving the display panel and the backlight. The drive circuit causes the display panel to display a three dimensional image by synchronizing the scanning of the display panel with the scanning of the partial illumination light (Lz) of the backlight.Type: GrantFiled: September 27, 2012Date of Patent: March 29, 2016Assignee: Sony CorporationInventors: Yoshihisa Sato, Shogo Shinkai, Kentaro Okuyama
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Patent number: 9235069Abstract: There is provided a display device including a transmissive display panel composed of pixels arranged in a form of a two-dimensional matrix in a first direction and a second direction different from the first direction, a planar illumination device for illuminating the transmissive display panel from a rear surface thereof, and a parallax barrier disposed between the transmissive display panel and the planar illumination device, for dividing an image displayed on the transmissive display panel into images for multiple viewpoints.Type: GrantFiled: February 9, 2015Date of Patent: January 12, 2016Assignee: Sony CorporationInventors: Norifumi Hoshino, Yoshihisa Sato, Yutaka Imai
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Patent number: 9075255Abstract: There is provided a display device including a transmissive display panel composed of pixels arranged in a form of a two-dimensional matrix in a first direction and a second direction different from the first direction, a planar illumination device for illuminating the transmissive display panel from a rear surface thereof, and a parallax barrier disposed between the transmissive display panel and the planar illumination device, for dividing an image displayed on the transmissive display panel into images for multiple viewpoints.Type: GrantFiled: December 17, 2012Date of Patent: July 7, 2015Assignee: Sony CorporationInventors: Norifumi Hoshino, Yoshihisa Sato, Yutaka Imai
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Publication number: 20150153579Abstract: There is provided a display device including a transmissive display panel composed of pixels arranged in a form of a two-dimensional matrix in a first direction and a second direction different from the first direction, a planar illumination device for illuminating the transmissive display panel from a rear surface thereof, and a parallax barrier disposed between the transmissive display panel and the planar illumination device, for dividing an image displayed on the transmissive display panel into images for multiple viewpoints.Type: ApplicationFiled: February 9, 2015Publication date: June 4, 2015Applicant: Sony CorporationInventors: Norifumi Hoshino, Yoshihisa Sato, Yutaka Imai
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Patent number: 8933924Abstract: A display device includes: a display section including a plurality of pixels, the display section allocating N-number of perspective images to the pixels to display the N-number of perspective images, where N is an integer representing number of the perspective images; a display drive circuit cyclically changing a correspondence relationship between the perspective images and the pixels from one to another of first to Mth states, where M is an integer representing number of the states; a plurality of selectors each selecting any from among traveling angle directions of a perspective image from the pixels; and a selector drive circuit controlling positions of the selectors to be cyclically changed from one to another of first to Mth states, the selector drive circuit operating in synchronization with the display drive circuit. A relationship 0<M<N is established, and N is a non-integer multiple of M.Type: GrantFiled: July 24, 2012Date of Patent: January 13, 2015Assignee: Sony CorporationInventor: Yoshihisa Sato
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Patent number: 8873152Abstract: A liquid optical element array with good long-term stability is provided. The liquid optical element array includes: a first substrate and a second substrate facing each other; barrier ribs arranged upright on a surface facing the second substrate of the first substrate and sectioning a region on the first substrate into a plurality of cell regions; a first electrode and a second electrode arranged on wall surfaces of the barrier ribs to face each other; a third electrode arranged on a surface facing the first substrate of the second substrate; a projection arranged upright in each of the cell regions on the first substrate or the second substrate; and a polar liquid and a nonpolar liquid sealed between the first substrate and the third electrode and having different refractive indices.Type: GrantFiled: August 12, 2011Date of Patent: October 28, 2014Assignee: Sony CorporationInventors: Yoshihisa Sato, Yuichi Takai, Miki Tsuchiya
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Publication number: 20140307232Abstract: There is provided a projection-type display device including an excitation light source configured to emit excitation light, a fluorescent member configured to emit fluorescent light when the excitation light from the excitation light source is condensed, a heat sink connected to the excitation light source, a single air blowing fan configured to cool the heat sink and the fluorescent member together, and an excitation light source control unit configured to control an output of the excitation light source, depending on a luminance level of an external video signal.Type: ApplicationFiled: April 4, 2014Publication date: October 16, 2014Applicant: Sony CorporationInventors: Yoshihisa Sato, Izushi Kobayashi
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Publication number: 20140232834Abstract: The purpose of the present invention is to provide a three dimensional image display device capable of preventing the generation of crosstalk. The three dimensional image display device according to the present invention includes a display panel having a plurality of pixels, a backlight capable of partially illuminating the display panel, and a drive circuit for driving the display panel and the backlight. The drive circuit causes the display panel to display a three dimensional image by synchronizing the scanning of the display panel with the scanning of the partial illumination light (Lz) of the backlight.Type: ApplicationFiled: September 27, 2012Publication date: August 21, 2014Inventors: Yoshihisa Sato, Shogo Shinkai, Kentaro Okuyama
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Publication number: 20130335647Abstract: A stereoscopic display optical device includes: a display section; a parallax separation section disposed to face the display section; and a spacer section sandwiched between the display section and the parallax separation section, and extending along respective perimeters of the display section and the parallax separation section.Type: ApplicationFiled: June 6, 2013Publication date: December 19, 2013Inventors: Tetsuyuki Yoshida, Yoshihisa Sato, Soya Araki
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Publication number: 20130293534Abstract: A display unit includes: a display section having a predetermined display region including a first region and a second region; and a control section allowing the display section to display a three-dimensional image in the first region and allowing the display section to display a two-dimensional image in the second region, the control section allowing the display section to time-divisionally display the three-dimensional image and the two-dimensional image.Type: ApplicationFiled: April 25, 2013Publication date: November 7, 2013Applicant: Sony CorporationInventors: Yoshihisa Sato, Chiaki Kanai
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Patent number: 8427626Abstract: A stereoscopic display device includes a display panel performing image display, and a lens array element including a first electrode, a second electrode opposed to the first electrode, and a liquid crystal layer disposed between the first electrode and the second electrode, the lens array element being configured in such a manner that a lens effect on display image light from the display panel is controlled depending on a voltage applied to the first electrode and a voltage applied to the second electrode. One of the first electrode and the second electrode is structured to allow an electric field to be applied to the liquid crystal layer for each of a plurality of predetermined sub-regions, individually.Type: GrantFiled: December 10, 2010Date of Patent: April 23, 2013Assignee: Sony CorporationInventors: Kenichi Takahashi, Sho Sakamoto, Yoshihisa Sato
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Publication number: 20130050284Abstract: A display device includes: a display section including a plurality of pixels, and displaying a plurality of perspective images assigned to the pixels; and a plurality of selectors each selecting any from among the perspective images traveling in respective angle directions from the pixels, in which light transmittance of each of the selectors is non-uniform in time or space.Type: ApplicationFiled: July 27, 2012Publication date: February 28, 2013Applicant: Sony CorporationInventor: Yoshihisa Sato
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Publication number: 20130050283Abstract: A display device includes: a display section including a plurality of pixels each partitioned into a plurality of sub-pixel regions, and selectively performing two-dimensional image display based on a two-dimensional image signal or three-dimensional image display based on a three-dimensional image signal; and a separation section separating a plurality of perspective images provided for the three-dimensional image display when in a mode of three-dimensional image display. The display section separately drives each of the sub-pixel regions in each of the pixels according to a grayscale level when in a mode of two-dimensional image display. The display section drives the sub-pixel regions in each of the pixels, when in the mode of three-dimensional image display, to allow a drive state to be different from a drive state in the mode of two-dimensional image display.Type: ApplicationFiled: July 27, 2012Publication date: February 28, 2013Applicant: Sony CorporationInventor: Yoshihisa Sato
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Publication number: 20130050177Abstract: A display device includes: a display section including a plurality of pixels, the display section allocating N-number of perspective images to the pixels to display the N-number of perspective images, where N is an integer representing number of the perspective images; a display drive circuit cyclically changing a correspondence relationship between the perspective images and the pixels from one to another of first to Mth states, where M is an integer representing number of the states; a plurality of selectors each selecting any from among traveling angle directions of a perspective image from the pixels; and a selector drive circuit controlling positions of the selectors to be cyclically changed from one to another of first to Mth states, the selector drive circuit operating in synchronization with the display drive circuit. A relationship 0<M<N is established, and N is a non-integer multiple of M.Type: ApplicationFiled: July 24, 2012Publication date: February 28, 2013Applicant: Sony CorporationInventor: Yoshihisa Sato
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Publication number: 20130033488Abstract: A lighting unit includes: a plurality of two-dimensionally-arrayed light emitting sections; and a drive section that drives the plurality of light emitting sections on an individual basis.Type: ApplicationFiled: July 11, 2012Publication date: February 7, 2013Applicant: Sony CorporationInventors: Kenichi Takahashi, Satoshi Tomioka, Yoshihisa Sato, Tetsuro Kuwayama, Yuichi Takai, Tadashi Morimoto