Patents by Inventor Tsuyoshi Maeda

Tsuyoshi Maeda 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: 9494724
    Abstract: A liquid crystal display device includes a liquid crystal panel, a pair of polarizing layers, a lighting device, and an output angle control member. The liquid crystal panel includes a pair of substrates, and a liquid crystal layer. The liquid crystal layer is interposed between the pair of substrates. The pair of polarizing layers is arranged on a light input side and a light output side of the liquid crystal layer. The lighting device is arranged on the light input side of the liquid crystal panel and radiates light toward the liquid crystal panel. The output angle control member is arranged on the light output side of the liquid crystal panel and controls an output angle of light which is output from the liquid crystal panel.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: November 15, 2016
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Emi Yamamoto, Tsuyoshi Maeda, Toru Kanno, Tsuyoshi Kamada, Shohei Katsuta
  • Patent number: 9496443
    Abstract: A solar cell module includes a light guide body that guides incident light to propagate therein, and a solar cell element that receives the light propagating within the light guide body, wherein the light guide body is made of a light-transmissive base material and has a curved surface in at least a part thereof.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: November 15, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tsuyoshi Kamada, Tsuyoshi Maeda, Hideki Uchida, Tokiyoshi Umeda, Hideomi Yui
  • Patent number: 9465146
    Abstract: A display apparatus includes at least a light source, a display element, and an isotropic diffusion layer.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: October 11, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Toru Kanno, Emi Yamamoto, Tsuyoshi Maeda
  • Publication number: 20160291218
    Abstract: A light-control member (13) includes a substrate (39); light-shielding layers (40) provided in a first area (A1) on one surface (39a) of the substrate (39); a light-diffusion section (41) provided in an area other than the light-shielding layers (40) in the first area (A1) and formed of light transmitting material; and a support section(45) provided in a second area (A2) positioned on an outer side of the first area (A1) on the one surface (39a), in which the light-diffusion section (41) has a light emitting end surface (41a) in contact with the one surface (39a) of the substrate (39), a light incident end surface (41b) opposing the light emitting end surface (41a) and having an area greater than an area of the light emitting end surface (41a), and a reflective surface (41c) which is in contact with the light emitting end surface (41a) and the light incident end surface (41b) and on which light incident from the light incident end surface (41b) is reflected, and a formation area of the support section (45) pe
    Type: Application
    Filed: November 7, 2014
    Publication date: October 6, 2016
    Inventors: Yasushi ASAOKA, Shohei KATSUTA, Hideomi YUI, Sho OCHI, Tsuyoshi MAEDA
  • Patent number: 9453946
    Abstract: Provided is a display device including a light-diffusing member that includes a substrate, a plurality of light-shielding layers, and a light-diffusing section, and a polarizing plate.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: September 27, 2016
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yasushi Asaoka, Tsuyoshi Maeda, Emi Yamamoto, Toru Kanno, Shohei Katsuta, Hideomi Yui
  • Publication number: 20160259097
    Abstract: A light-diffusing-member manufacturing method includes a step of forming a light diffusion portion on one surface side of a base, by developing an exposed negative photosensitive resin layer with an alkali developing solution, and a step of performing an acid treatment on the light diffusion portion with an acid solution, after removing the alkali developing solution which is adhered to the light diffusion portion and suspended matter in the alkali developing solution in the negative photosensitive resin layer, so as to lower an ionization degree of the negative photosensitive resin layer which is in an ionized state due to the alkali developing solution.
    Type: Application
    Filed: October 28, 2014
    Publication date: September 8, 2016
    Inventors: Sho OCHI, Yasushi ASAOKA, Tsuyoshi MAEDA, Toru KANNO
  • Publication number: 20160238751
    Abstract: A method for manufacturing a light-diffusing member includes a process of forming a light shielding layer on one surface of a substrate (30); a process of forming a negative photosensitive resin layer on the one surface of the substrate (30) so as to cover the light shielding layer; a process of exposing the negative photosensitive resin layer by irradiating the negative photosensitive resin layer with parallel light of ultraviolet light diagonally with respect to a normal direction of the one surface of the substrate (30) from a surface opposite to the one surface of the substrate (30) on which the light shielding layer and the negative photosensitive resin layer are formed in at least one direction through a region of the substrate (30) other than a region where the light shielding layer is formed; and a process of forming a light-diffusing section, which includes a light emission end surface on a side close to the substrate (30) and a light incident end surface having an area greater than an area of the li
    Type: Application
    Filed: July 4, 2014
    Publication date: August 18, 2016
    Inventors: Toru KANNO, Hideomi YUI, Tsuyoshi KAMADA, Tsuyoshi MAEDA
  • Publication number: 20160231469
    Abstract: A light dispersion member includes a substrate having optical transparency, a light diffusion portion formed with a predetermined height on one surface of the substrate, light shielding layers formed with a thickness smaller than the height of the light diffusion portion in regions other than the light diffusion portion within the one surface of the substrate, and a buffer layer formed on the surface on the opposite side of the light diffusion portion to the surface thereof facing the substrate, the light diffusion portion has a light emitting end surface contacting the substrate and a light incident end surface opposing the light emitting end surface and having a larger area than the area of the light emitting end surface a, and the buffer layer, by elastically deforming when pressure is applied from the substrate side, relaxes pressure applied to the light diffusion portion.
    Type: Application
    Filed: September 8, 2014
    Publication date: August 11, 2016
    Inventors: Yasushi ASAOKA, Shohei KATSUTA, Hideomi YUI, Toru KANNO, Sho OCHI, Tsuyoshi MAEDA
  • Publication number: 20160225366
    Abstract: A noise reduction device includes a plurality of noise microphones, noise controller, and control speakers. Noise controller generates a control-sound signal to reduce a noise, at a control center of a control space, with the noise being detected by the plurality of noise microphones. Noise microphone disposed at a shorter distance from the control center than distance “d” indicated by Relational Expression (1) is smaller in number than noise microphones disposed at longer distances than distance “d” where “?” is a wavelength corresponding to control upper-limit frequency “f” in noise microphones, “d0” is a distance from the control center to control speakers, “t” is a control delay time in control speakers, and “v” is a sound speed.
    Type: Application
    Filed: January 21, 2016
    Publication date: August 4, 2016
    Inventors: Tsuyoshi MAEDA, Yoshifumi ASAO
  • Publication number: 20160202541
    Abstract: Provided is a display device including a substrate that has light transmissivity, a plurality of light shielding layers that is formed at a recurring period on one face of the substrate, and a light-diffusing unit that is formed in an area of the one face of the substrate except for the area where the light shielding layers are formed, in which the light-diffusing unit includes a light emitting end face on the substrate side and includes a light incident end face having an area larger than the area of the light emitting end face on the side opposite to the substrate side, the height of the light-diffusing unit from the light incident end face to the light emitting end face is greater than the thickness of the light shielding layer, and the periodic direction at which the light shielding layers are recurrently formed is non-parallel to the direction of a pixel pitch of a display body.
    Type: Application
    Filed: July 1, 2014
    Publication date: July 14, 2016
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Yasushi ASAOKA, Shohei KATSUTA, Tsuyoshi MAEDA, Tsuyoshi KAMADA
  • Publication number: 20160139453
    Abstract: A light diffusing member includes a base having light transmissivity, a light diffuser formed with a predetermined height on a surface of the base facing a display body, and a light blocking layer formed in a region other than the light diffuser on the surface of the base facing the display body. The light blocking layer has a thickness smaller than the height of the light diffuser. The light diffuser has a light exit end surface that is in contact with the base, and a light entrance end surface that is opposite the light exit end surface and that has an area larger than the area of the light exit end surface. The light entrance end surface is adhered to the adhesive layer, and the thickness of the adhesive layer is smaller than the height of a space formed between the light diffuser and the light blocking layer, the height extending from the light blocking layer to the light entrance end surface.
    Type: Application
    Filed: June 2, 2014
    Publication date: May 19, 2016
    Inventors: Hideomi YUI, Tsuyoshi MAEDA, Emi YAMAMOTO, Shohei KATSUTA
  • Patent number: 9341345
    Abstract: A light diffusion member includes a light-transmissive base, a plurality of light diffusion portions, a connecting portion, and a light absorbing layer. The light diffusion portions are arranged on one surface of the base and have light-incident end surfaces each positioned on the side away from the base and having a larger area than a light-emergent end surface thereof. The connecting portion connects at least two adjacent ones of the plural light diffusion portions to each other, and is positioned near the light-incident end surfaces of the adjacent light diffusion portions. The light absorbing layer is formed on the one surface of the base in a region different from a region where the light diffusion portions are formed. A size from the light-incident end surface to the light-emergent end surface of the light diffusion portion is larger than a thickness of the light absorbing layer.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: May 17, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Emi Yamamoto, Toru Kanno, Tsuyoshi Maeda
  • Publication number: 20160123879
    Abstract: An inspection device of the present invention is provided with a light source unit which is disposed either one of a base material side and a light diffusing portion side and irradiates light toward a light-regulating film with respect to the light-regulating film which includes a base material, a light diffusing portion, and a light shielding layer, and a light receiver which is disposed on either the other of the base material side and the light diffusing portion side and measures an intensity of transmitted light which is emitted from the light source unit and is transmitted through the light-regulating film, and inspects a state of an inclined surface of the light diffusing portion based on a measurement result of the intensity of the transmitted light.
    Type: Application
    Filed: May 19, 2014
    Publication date: May 5, 2016
    Inventors: Daisuke SHINOZAKI, Yasushi ASAOKA, Shohei KATSUTA, Tsuyoshi MAEDA
  • Patent number: 9306089
    Abstract: A solar cell module according to the invention includes a solar cell; a light guiding portion including a first fluorescent substance having a faint color and that emits light having low luminosity factor, the light guiding portion absorbing part of light incident from the outside using the first fluorescent substance and transmitting a first light beam emitted from the first fluorescent substance toward the solar cell; and a converter disposed between the light guiding portion and the solar cell, the converter converting the first light beam incident from the light guiding portion into a second light beam to which the solar cell has higher spectral sensitivity than to the first light beam and causing the second light beam to be incident on the solar cell. Thus, when the solar cell module is used as a window, the solar cell module is highly transparent and highly efficiently generates power.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: April 5, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hideomi Yui, Hideki Uchida, Tsuyoshi Maeda
  • Patent number: 9279919
    Abstract: A viewing angle extending film (a light diffusing member) includes a base material with optical transparency, a plurality of light-shielding layers dotted on one surface of the base material, and a transparent resin layer (optically transparent material layer) provided on the one surface of the base material. At least a light-shielding layer, which is part of the plurality of light-shielding layers, has a planar shape surrounded by a first figure and a second figure contained in the first figure or a planar shape surrounded by at least part of the first figure and at least part of the second figure overlaid with the first figure. Hollow portions are provided in a formation region of the light-shielding layers, each hollow portion being shaped so that a cross-sectional area obtained by cutting along a plane parallel to the one surface of the base material is large on the light-shielding layer side and is gradually decreased as being away from the light-shielding layer.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: March 8, 2016
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toru Kanno, Emi Yamamoto, Tsuyoshi Maeda
  • Patent number: 9274255
    Abstract: A light-diffusion member includes a substrate having light transparency, a plurality of light-diffusion parts formed on one surface of the substrate, and a light-absorbing layer formed in a region other than a region where the light-diffusion parts are formed, among the one surface of the substrate. Each light-diffusion part includes a light-emission end surface on the side of the substrate and a light-incident end surface of an area larger than an area of the light-emission end surface on a side opposite to the side of the substrate. The height from the light-incident end surface of the light-diffusion part to the light-emission end surface thereof is larger than the thickness of the light-absorbing layer. The plurality of light-diffusion parts are randomly arranged on the one surface of the substrate.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: March 1, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Emi Yamamoto, Toru Kanno, Hidefumi Yoshida, Tsuyoshi Maeda, Tsuyoshi Kamada
  • Patent number: 9251779
    Abstract: A noise reduction apparatus includes a noise reduction amount calculator. The noise reduction amount calculator includes a difference calculator that obtains a difference between a level of the noise detected by a first noise detecting microphone and a level of the noise detected by a second noise detecting microphone when control sound is not output, a storage unit that stores the difference, an estimated noise value calculator that estimates a noise level that is to be detected by the second noise detecting microphone when the control sound is output, based on the level of the noise detected by the first noise detecting microphone when the control sound is output and the difference, and a reduction amount calculator that calculates a noise reduction amount on the noise reduction target position, based on the estimated noise value and the level of the noise detected by the second noise detecting microphone when the control sound is output.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: February 2, 2016
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yoshifumi Asao, Tsuyoshi Maeda
  • Publication number: 20160018572
    Abstract: This light diffusion member includes: a substrate having light transmissivity; a plurality of light shielding layers formed on one face of the substrate; and light diffusion portions formed on the one face of the substrate at regions other than the regions where the light shielding layers have been formed. The light diffusion portions have a light-emitting end surface coming into contact with the substrate, a light incident end surface which faces the light-emitting end surface and has a larger area than the area of the light-emitting end surface, and a reflecting face coming into contact with the light-emitting end surface and the light incident end surface, and reflecting light entering from the light incident end surface. The height from the light incident end surface to the light-emitting end surface of the light diffusion portion is greater than the thickness of the light shielding layers.
    Type: Application
    Filed: February 24, 2014
    Publication date: January 21, 2016
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Shohei KATSUTA, Yasushi ASAOKA, Hideomi YUI, Tsuyoshi MAEDA
  • Patent number: 9226631
    Abstract: A cyclonic separator and a vacuum cleaner which efficiently separates dust, collect the dust without re-scattering it and make low noise are provided. In a primary cyclone portion 10, a primary swirl chamber 12 swirls air containing dust sucked from a primary inlet 11, and thereby, separates a first dust and a second dust from the air containing dust to collect them respectively in a zero-order dust case 114 which is provided at a side of the primary swirl chamber 12 and communicates with a zero-order opening portion 113 provided at a side wall, and a primary dust case 14 provided at a lower side of the primary swirl chamber 12.
    Type: Grant
    Filed: February 3, 2011
    Date of Patent: January 5, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventors: Sota Komae, Tsuyoshi Maeda, Junichiro Hoshizaki, Tomoo Kobayashi, Akihiro Iwahara, Masayoshi Izuka, Tadashi Fukushima, Kenji Yanagisawa, Daisuke Kondo
  • Publication number: 20150378069
    Abstract: This light-diffusing member includes a light-transmissive substrate, a plurality of wavelength-controlling layers formed on one surface of the light-transmissive substrate, and a light-diffusing portion formed on the one surface of the light-transmissive substrate in a region other than a region where the wavelength-controlling layers are formed.
    Type: Application
    Filed: February 19, 2014
    Publication date: December 31, 2015
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Emi YAMAMOTO, Yuhsuke TSUDA, Tsuyoshi MAEDA, Yasushi ASAOKA, Shohei KATSUTA