Patents by Inventor Yuuichi Kanbayashi

Yuuichi Kanbayashi 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).

  • Patent number: 11366262
    Abstract: A lighting device includes light sources and a light guide plate. The light guide plate includes a base portion and a light collecting portion. The base portion includes a light entering surface and a light exiting surface. The light collecting portion protrudes from the light exiting surface. The light collecting portion includes light collecting sections elongated in a first direction parallel to a normal direction to the light entering surface and arranged in a second direction perpendicular to the first direction. The light collecting sections perform linearity adjustment to rays of light so that the rays of light travel along the first direction. The light collecting sections include first light collecting regions and second light collecting regions. The second light collecting regions perform the linearity adjustment at a degree greater than a degree of the linearity adjustment by the first light collecting regions.
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: June 21, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Shugo Yagi, Yuuichi Kanbayashi, Satoshi Tsubooka
  • Patent number: 11143915
    Abstract: A lighting device includes light sources arranged in a row in an arrangement direction, alight guide plate disposed to cover the light sources and including a plate surface facing the light sources and an opposite plate surface opposite from the plate surface, and a light diffusion portion. A portion of the plate surface is a light entering surface and the opposite plate surface is a light exit surface. The light diffusion portion extends in the arrangement direction of the light sources and on the light exit surface such that a portion of the light diffusion portion overlaps the light sources. The light diffusion portion applies a diffusion effect to light that is within the light guide plate so as to travel in a direction crossing the arrangement direction and to be away from the light sources seen from a normal direction of the light exit surface.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: October 12, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Shugo Yagi, Takeshi Masuda, Satoshi Tsubooka, Yuuichi Kanbayashi
  • Publication number: 20210311242
    Abstract: A lighting device includes light sources and a light guide plate. The light guide plate includes a base portion and a light collecting portion. The base portion includes a light entering surface and a light exiting surface. The light collecting portion protrudes from the light exiting surface. The light collecting portion includes light collecting sections elongated in a first direction parallel to a normal direction to the light entering surface and arranged in a second direction perpendicular to the first direction. The light collecting sections perform linearity adjustment to rays of light so that the rays of light travel along the first direction. The light collecting sections include first light collecting regions and second light collecting regions. The second light collecting regions perform the linearity adjustment at a degree greater than a degree of the linearity adjustment by the first light collecting regions.
    Type: Application
    Filed: March 18, 2021
    Publication date: October 7, 2021
    Inventors: SHUGO YAGI, YUUICHI KANBAYASHI, SATOSHI TSUBOOKA
  • Publication number: 20210294018
    Abstract: A display device includes a light source, a light guide plate having a light entering end surface and a light emitting plate surface, a display panel, and a lens sheet. A prism unit of the lens sheet has a plurality of unit prisms having a top portion and a pair of slopes, the plurality of unit prisms have at least a plurality of top portion uneven distribution prisms, and the plurality of top portion uneven distribution prisms have a light-source-end-side top portion uneven distribution prism positioned on a light source end side in the normal direction and an opposite-light-source-end-side top portion uneven distribution prism positioned on an opposite light source end side in the normal direction and arranged such that a distance from the opposite light source end is the same as a distance from the light source end to the light-source-end-side top portion uneven distribution prism.
    Type: Application
    Filed: March 12, 2021
    Publication date: September 23, 2021
    Inventors: YUUICHI KANBAYASHI, SHUGO YAGI, SATOSHI TSUBOOKA
  • Publication number: 20210096427
    Abstract: A lighting device includes light sources arranged in a row in an arrangement direction, alight guide plate disposed to cover the light sources and including a plate surface facing the light sources and an opposite plate surface opposite from the plate surface, and a light diffusion portion. A portion of the plate surface is a light entering surface and the opposite plate surface is a light exit surface. The light diffusion portion extends in the arrangement direction of the light sources and on the light exit surface such that a portion of the light diffusion portion overlaps the light sources. The light diffusion portion applies a diffusion effect to light that is within the light guide plate so as to travel in a direction crossing the arrangement direction and to be away from the light sources seen from a normal direction of the light exit surface.
    Type: Application
    Filed: September 11, 2020
    Publication date: April 1, 2021
    Inventors: SHUGO YAGI, TAKESHI MASUDA, SATOSHI TSUBOOKA, YUUICHI KANBAYASHI
  • Patent number: 10928578
    Abstract: First and second prism sheets have pluralities of first and second unit prisms, respectively, arranged along a first direction and extending along a second direction, each of which has a base that is parallel to the first direction and a pair of oblique sides standing from both ends, respectively, of the base, and an angle that a second LED facing oblique side, which is one of the oblique sides that faces toward the LED, forms with respect to the base in the first direction in the second unit prism is smaller than an angle that a first LED facing oblique side that faces toward the LED forms with respect to the base in the first direction in the first unit prism.
    Type: Grant
    Filed: January 20, 2020
    Date of Patent: February 23, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Shugo Yagi, Takeshi Ishida, Yuuichi Kanbayashi, Satoshi Tsubooka
  • Patent number: 10768430
    Abstract: A display device includes a display panel having a display surface and a lighting device that supplies light to the display panel. The lighting device includes a light source, and an optical member having at least a light exit surface through which the light emitted by the light source exits toward the display surface of the display panel. The optical member includes a light refraction portion that imparts an anisotropic refraction effect to at least light rays exiting through an edge section of the light exit surface to be oriented toward a center side of the display surface. The display device further includes a low refraction index layer interposed between the display panel and the optical member, and the low refraction index layer has a refraction index lower than at least a refraction index of the optical member.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: September 8, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yuuichi Kanbayashi, Naru Usukura, Hiromi Katoh
  • Publication number: 20200233145
    Abstract: First and second prism sheets have pluralities of first and second unit prisms, respectively, arranged along a first direction and extending along a second direction, each of which has a base that is parallel to the first direction and a pair of oblique sides standing from both ends, respectively, of the base, and an angle that a second LED facing oblique side, which is one of the oblique sides that faces toward the LED, forms with respect to the base in the first direction in the second unit prism is smaller than an angle that a first LED facing oblique side that faces toward the LED forms with respect to the base in the first direction in the first unit prism.
    Type: Application
    Filed: January 20, 2020
    Publication date: July 23, 2020
    Inventors: SHUGO YAGI, TAKESHI ISHIDA, YUUICHI KANBAYASHI, SATOSHI TSUBOOKA
  • Publication number: 20200233146
    Abstract: A lighting device includes a light source, a light guide plate including an edge surface as a light entering surface through which light from the light source enters and one of a pair of plate surfaces as a light exit surface through which the light exits, and a light collecting sheet disposed to cover the light exit surface and applying a light collecting effect to the light exiting through the light exit surface. The light collecting sheet includes a base member having a sheet shape and a non-birefringence property and a light collecting layer disposed on a plate surface of the base member.
    Type: Application
    Filed: January 20, 2020
    Publication date: July 23, 2020
    Inventors: SHUGO YAGI, TAKESHI ISHIDA, YUUICHI KANBAYASHI, SATOSHI TSUBOOKA
  • Publication number: 20190302461
    Abstract: A display device includes a display panel having a display surface and a lighting device that supplies light to the display panel. The lighting device includes a light source, and an optical member having at least a light exit surface through which the light emitted by the light source exits toward the display surface of the display panel. The optical member includes a light refraction portion that imparts an anisotropic refraction effect to at least light rays exiting through an edge section of the light exit surface to be oriented toward a center side of the display surface. The display device further includes a low refraction index layer interposed between the display panel and the optical member, and the low refraction index layer has a refraction index lower than at least a refraction index of the optical member.
    Type: Application
    Filed: March 28, 2019
    Publication date: October 3, 2019
    Inventors: YUUICHI KANBAYASHI, NARU USUKURA, HIROMI KATOH
  • Patent number: 10060580
    Abstract: A light emitting device of the present disclosure includes a light emitting section that generates fluorescence by receiving laser light, a reflection film that reflects laser light which is radiated to the vicinity of the light emitting section, among laser light which is emitted toward the light emitting section from a rod lens, and a reflection mirror that collects the laser light reflected by the reflection film, in the light emitting section.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: August 28, 2018
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Kazunori Annen, Toshiki Matsuoka, Yuuichi Kanbayashi, Masamichi Harada
  • Patent number: 9870111
    Abstract: A touchscreen panel according to an embodiment of the present invention includes a transparent substrate (101); a first electrically conductive layer (12) supported on the transparent substrate, the first electrically conductive layer including a plurality of sensing electrodes (12S) extending along a first direction; and a second electrically conductive layer (14) including a plurality of driving electrodes (14D) extending along a second direction intersecting the first direction, the plurality of driving electrodes being electrically insulated from the plurality of sensing electrodes. The plurality of sensing electrodes and the plurality of driving electrodes define a sensor array region (10A), the sensor array region including a plurality of sensor portions (10S) arranged in a matrix array. The first electrically conductive layer further includes a plurality of lead lines (12Dt) extending essentially in parallel to the first direction within the sensor array region.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: January 16, 2018
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yasuhiro Sugita, Hiroyuki Ogawa, Kenshi Tada, Yuuichi Kanbayashi, Shinji Yamagishi
  • Publication number: 20160253001
    Abstract: A touchscreen panel according to an embodiment of the present invention includes a transparent substrate (101); a first electrically conductive layer (12) supported on the transparent substrate, the first electrically conductive layer including a plurality of sensing electrodes (12S) extending along a first direction; and a second electrically conductive layer (14) including a plurality of driving electrodes (14D) extending along a second direction intersecting the first direction, the plurality of driving electrodes being electrically insulated from the plurality of sensing electrodes. The plurality of sensing electrodes and the plurality of driving electrodes define a sensor array region (10A), the sensor array region including a plurality of sensor portions (10S) arranged in a matrix array. The first electrically conductive layer further includes a plurality of lead lines (12Dt) extending essentially in parallel to the first direction within the sensor array region.
    Type: Application
    Filed: August 22, 2014
    Publication date: September 1, 2016
    Inventors: Yasuhiro SUGITA, Hiroyuki OGAWA, Kenshi TADA, Yuuichi KANBAYASHI, Shinji YAMAGISHI
  • Publication number: 20160084451
    Abstract: A light emitting device of the present disclosure includes a light emitting section that generates fluorescence by receiving laser light, a reflection film that reflects laser light which is radiated to the vicinity of the light emitting section, among laser light which is emitted toward the light emitting section from a rod lens, and a reflection mirror that collects the laser light reflected by the reflection film, in the light emitting section.
    Type: Application
    Filed: August 10, 2015
    Publication date: March 24, 2016
    Inventors: Kazunori ANNEN, Toshiki MATSUOKA, Yuuichi KANBAYASHI, Masamichi HARADA
  • Patent number: 9239509
    Abstract: A first element substrate (20a) including an interlayer insulating layer (15a) provided on a first transparent substrate (10a), a plurality of first transparent electrode (16) extending parallel to each other, each first transparent electrode (16) being provided at a bottom (B) of an associated one of a plurality of grooves (S) in the interlayer insulating layer (15a), and a planarizing layer (17) covering the first transparent electrodes (16), filling the grooves (S), and having a refractive index equal to a refractive index of the interlayer insulating layer (15a), a second element substrate (30a) including a second transparent electrode (21) provided on a second transparent substrate (10b), and a liquid crystal layer (40) provided between the first element substrate (20a) and the second element substrate (30a) are provided.
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: January 19, 2016
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Yuuichi Kanbayashi
  • Publication number: 20150277169
    Abstract: An active liquid crystal diffraction element includes: a first transparent substrate; a second transparent substrate; a liquid crystal layer; a first electrode; a second electrode; a control member; and an alignment member, wherein the second electrode includes a plurality of small electrodes; the control member controls a magnitude of an electric voltage applied to each of the plurality of small electrodes; the alignment member confers a liquid crystal molecular alignment without any pre-tilt to the liquid crystal layer; and the liquid crystal molecular alignment is parallel to the surface of the first transparent substrate.
    Type: Application
    Filed: September 5, 2012
    Publication date: October 1, 2015
    Inventors: Naru Usukura, Yuuichi Kanbayashi, Hiromi Katoh, Norbert Leister
  • Publication number: 20150248031
    Abstract: Provided is a light deflection device that is capable of forming a blazed-type diffraction grating while suppressing an increase in an electrode-applied voltage by using a horizontal electric field mode. A light deflection element is equipped with: a pair of glass substrates; a liquid crystal layer sandwiched between the pair of glass substrates; and a plurality of pattern electrodes arranged over a surface of the glass substrate on the side of the liquid crystal layer, with an interlayer insulation film therebetween. A driving circuit that applies voltages to the light deflection element generates electrode-applied voltages Vpixel so as to change an inter-electrode voltage VLC incrementally in the order of 0V, 3V, and 6V. The electrode-applied voltages Vpixel are a mixture of positive voltages and negative voltages.
    Type: Application
    Filed: August 21, 2013
    Publication date: September 3, 2015
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yuuichi Kanbayashi, Naru Usukura, Yasuhiro Sugita
  • Publication number: 20150070607
    Abstract: A three-dimensional display apparatus includes a display device capable of displaying an image, and a liquid crystal lens disposed so as to overlap the display device. The liquid crystal lens includes an insulating substrate, a first electrode formed extending in a first direction, a second electrode formed substantially parallel to the first electrode, a high resistance portion electrically connecting the first electrode and the second electrode, an opposing substrate, a common electrode, a liquid crystal layer, and a controller. The sheet resistance of the high resistance portion is in 100 G?/sq or less. The controller controls, in one of the modes, the first electrode and the second electrode to be at different potentials.
    Type: Application
    Filed: April 5, 2013
    Publication date: March 12, 2015
    Inventors: Naru Usukura, Hiromi Katoh, Yuuichi Kanbayashi, Nathan Smith, Alexander Zawadzki, Benjamin Broughton
  • Publication number: 20140293208
    Abstract: A first element substrate (20a) including an interlayer insulating layer (15a) provided on a first transparent substrate (10a), a plurality of first transparent electrode (16) extending parallel to each other, each first transparent electrode (16) being provided at a bottom (B) of an associated one of a plurality of grooves (S) in the interlayer insulating layer (15a), and a planarizing layer (17) covering the first transparent electrodes (16), filling the grooves (S), and having a refractive index equal to a refractive index of the interlayer insulating layer (15a), a second element substrate (30a) including a second transparent electrode (21) provided on a second transparent substrate (10b), and a liquid crystal layer (40) provided between the first element substrate (20a) and the second element substrate (30a) are provided.
    Type: Application
    Filed: October 9, 2012
    Publication date: October 2, 2014
    Inventor: Yuuichi Kanbayashi
  • Publication number: 20140267965
    Abstract: An optical deflector includes: a first element substrate (20) including a first transparent electrode (12) located at a first transparent substrate (10a), an interlayer insulating layer (13) covering the first transparent electrode (12), and a plurality of second transparent electrodes (14) extending in parallel with one another on the interlayer insulating layer (13); a second element substrate (30) facing the first element substrate (20); a liquid crystal layer (40) provided between the first element substrate (20) and the second element substrate (30); and a drive circuit configured to apply signal voltages which are individually defined for the second transparent electrodes (14) and in which a low potential and a high potential are repeated as a whole, to the second transparent electrodes (14) and to apply a signal voltage at the low potential to the first transparent electrode (12).
    Type: Application
    Filed: November 12, 2012
    Publication date: September 18, 2014
    Inventors: Yuuichi Kanbayashi, Naru Usukura