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).

  • Publication number: 20120236599
    Abstract: Provided is an electronic device including a small-area solar power generation system which is capable of efficiently generating power. A mobile device (10) includes: an optical module (2); and a storage section (1), the optical module (2) including: a light guide section which has a light receiving surface for receiving light from outside and guides the light thus received; and a solar cell element which is provided on an end face of the light guide section, the end face intersecting the light receiving surface, and receives the light thus guided through the light guide section, and the storage section (1) storing the optical module (2) so that the optical module can be drawn out from the storage section.
    Type: Application
    Filed: September 2, 2010
    Publication date: September 20, 2012
    Inventors: Tsuyoshi Maeda, Hidefumi Yoshida
  • Publication number: 20120216368
    Abstract: A vacuum cleaner including a suction port body, a motor-driven blower, and a cyclone part that is disposed between the suction port body and the motor-driven blower and is provided with an inflow port, a swirl chamber, and a discharge port body. The side surface of the discharge port body is composed of a cylindrical mesh and a conical mesh. The side wall of the swirl chamber is composed of a cylindrical part and a conical part. The vacuum cleaner further includes a zero-order opening formed by opening a part of the cylindrical part, a first-order opening formed by opening a part of the conical part, a zero-order dust case communicating with the swirl chamber via the zero-order opening, and a first-order dust case communicating with the swirl chamber via the first-order opening.
    Type: Application
    Filed: November 4, 2010
    Publication date: August 30, 2012
    Applicant: Mitsubishi Electric Corporation
    Inventors: Tsuyoshi Maeda, Sota Komae, Junichiro Hoshizaki, Tomoo Kobayashi
  • Patent number: 8253885
    Abstract: A liquid crystal display device according to the present invention includes a liquid crystal panel, a backlight source provided on a rear surface of the liquid crystal panel, for irradiating the liquid crystal panel with white light, and an optical film provided between the liquid crystal panel and the backlight source, in which the optical film includes a base material which passes the white light irradiated from the backlight source, a colored layer partially provided on one surface of the base material at the side of the liquid crystal, panel, and a reflective layer provided on another surface of the base material at the side of the backlight source opposite to the colored layer, for reflecting the white light.
    Type: Grant
    Filed: April 1, 2009
    Date of Patent: August 28, 2012
    Assignee: Sony Corporation
    Inventors: Tsuyoshi Maeda, Toyokazu Ogasawara
  • Publication number: 20120200681
    Abstract: In a three dimensional video display device (1), an LED unit (10) rotates in the direction of the arrow (24) along top and bottom edges of a display section (28). The LED unit (10) has a left-eye LED array (6) and a right-eye LED array (8), each including plural LEDs (4) aligned in a column. The left-eye LED array (6) displays a left-eye image through an afterimage effect produced by displaying, while rotating, columns of pixel groups constituting the left-eye image. The right-eye LED array 8 displays a right-eye image through an afterimage effect produced by displaying, while rotating, columns of pixel groups constituting the right-eye image. Light from the left-eye image enters the left eye of a viewer, whereas light from the right-eye image enters the right eye. The viewer recognizes a three dimensional image in a range of 360° around the viewer based on binocular parallax.
    Type: Application
    Filed: October 15, 2010
    Publication date: August 9, 2012
    Inventors: Hidefumi Yoshida, Tsuyoshi Maeda, Satoshi Shibata
  • Publication number: 20120176566
    Abstract: A backlight device of the present invention includes a substrate (2), a liquid crystal layer (4), and a scattering layer (5). The substrate (2) has a surface facing the liquid crystal layer (4), on which surface two comb electrodes (3a and 3b) are provided. The comb electrode (3a) includes a plurality of comb-teeth parts (33a) meshing with a plurality of comb-teeth parts (33b) of the comb electrode (3b). Therefore, the comb electrodes (3a and 3b) can causes electric fields to be generated, in response to an applied voltage, in at least two directions each parallel to the surface of the substrate (2). Further, there is a region whose effective refractive indexes with respect to polarized light p and polarized light s become large. It is therefore possible to control emission of both the polarized light p and the polarized light s.
    Type: Application
    Filed: April 28, 2010
    Publication date: July 12, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Hidefumi Yoshida, Tsuyoshi Kamada, Tsuyoshi Maeda, Satoshi Shibata, Hideki Uchida, Kiyoshi Minoura
  • Publication number: 20120167951
    Abstract: In order to realize a transparent solar cell module with a high design freedom, a solar cell module (10) includes a light guide plate (1) and a solar cell element (2). The light guide plate (1) includes, on its back surface opposite to its light entry surface, traveling direction changing sections (11) for changing a traveling direction of light incident via the light entry surface. Each of the traveling direction changing sections (11) includes a first inclined surface (11a) for reflecting the light incident via the light entry surface and a second inclined surface (11b). The solar cell element (2) is provided on, among intersecting surfaces which intersect with the light entry surface of the light guide plate (1), an end face that light reflected by the first inclined surface (11a) reaches.
    Type: Application
    Filed: October 19, 2010
    Publication date: July 5, 2012
    Applicant: Sharp Kavushiki Kaisha
    Inventors: Tsuyoshi Maeda, Hideki Uchida
  • Publication number: 20120138144
    Abstract: The present invention provides a solar cell module which has a higher degree of freedom for design and can be easily manufactured at lower cost. The solar cell module (10) includes a light guide plate (1); at least one adhesive layer (4) provided on respective at least one surface of the light guide plate (1); and a solar cell element (3) which is provided on another surface perpendicular to the at least one surface. The solar cell module (10) further includes at least one light-transmitting film (2) adhered to the light guide plate (1) via the respective at least one adhesive layer (4) in which a fluorescent substance is dispersed. Therefore, it is not necessary to prepare a light guide plate in which a fluorescent substance is dispersed. Moreover, the adhesive layer(s) (4) can be freely patterned and/or stacked.
    Type: Application
    Filed: September 6, 2010
    Publication date: June 7, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Tsuyoshi Maeda
  • Publication number: 20120125435
    Abstract: The present invention provides a solar cell module which has high design freedom and can be easily manufactured at low cost. A solar cell module (10) includes (i) a light guide plate (1), (ii) a fluorescence-dispersed film (2) in each of which a fluorescent substance is dispersed and which is adhered to respective at least one surface of the light guide plate (1), and (iii) a solar cell element (3) which is provided on another surface of the light guide plate (1) which another surface being perpendicular to the at least one surface. Therefore, it is not necessary to prepare a light guide plate in which a fluorescent substance is dispersed. Moreover, it is possible to arbitrarily pattern the fluorescence-dispersed film (2) or to stack the fluorescence-dispersed films (2).
    Type: Application
    Filed: September 6, 2010
    Publication date: May 24, 2012
    Applicant: Sharp Kabushiki Kaisha
    Inventor: Tsuyoshi Maeda
  • Patent number: 8149356
    Abstract: A liquid crystal display device according to the present invention includes a liquid crystal panel which has a liquid crystal cell including a predetermined liquid crystal layer and polarizing plates for holding the liquid crystal cell, a backlight source which is arranged on the rear side of the liquid crystal panel, for irradiating the liquid crystal panel with white light, and an absorbing layer which is arranged between the backlight source and the liquid crystal cell, for absorbing only the light of the wavelength band corresponding to a changed color of the white light while passing through the liquid crystal panel in the oblique direction with respect to the normal direction of the liquid crystal panel.
    Type: Grant
    Filed: April 8, 2009
    Date of Patent: April 3, 2012
    Assignee: Sony Corporation
    Inventors: Toyokazu Ogasawara, Tsuyoshi Maeda
  • Patent number: 8120738
    Abstract: A liquid crystal display device with a vertical alignment mode in which a high image quality and a wide viewing angle are secured includes a liquid crystal layer having an initial state of vertical alignment interposed between a pair of substrates opposite to each other. A plurality of alignment control structures including a dielectric protrusion protruded toward the liquid crystal layer from the inner surface of the substrate is provided in a dot area constituting one unit of display. When that the dielectric constant of the dielectric protrusion is ?t1, the dielectric constant of a major axis direction of liquid crystal molecules constituting the liquid crystal layer is ?//, and the dielectric constant of a minor axis direction thereof is ??, the dielectric constants satisfy the expression ??>?//>?t1.
    Type: Grant
    Filed: June 9, 2009
    Date of Patent: February 21, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Tsuyoshi Maeda
  • Patent number: 8111353
    Abstract: A lens array sheet includes a lens layer having a lens surface on which a plurality of lenses are formed in an array, a light reflection layer arranged at an opposite side to the lens surface of the lens layer and having an opening within a light focusing region in the lenses to transmit light, for reflecting light at a site other than the opening, and a light diffusion layer arranged between the lens layer and the light reflection layer, for diffusing light, which passes through the opening and is directed toward the lens layer.
    Type: Grant
    Filed: April 7, 2009
    Date of Patent: February 7, 2012
    Assignee: Sony Corporation
    Inventors: Toyokazu Ogasawara, Tsuyoshi Maeda
  • Patent number: 8102111
    Abstract: An electroluminescence device includes a first, second, and third light emitting elements above a substrate. The first light emitting element includes a first transparent anode, a second transparent conductive film, a third transparent conductive film, a cathode, and a first light emitting function layer including a first luminescent layer which emits a first light of a first color. The second light emitting element includes a second transparent anode, the third transparent conductive film, the cathode, and a second light emitting function layer including a second luminescent layer which emits a second light of a second color, which is different from the first color. The third light emitting element includes a third transparent anode, the cathode, and a third light emitting function layer including a third luminescent layer which emits a third light of a third color, which is different from the first and second colors.
    Type: Grant
    Filed: July 10, 2006
    Date of Patent: January 24, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Tsuyoshi Maeda, Tomotaka Matsumoto
  • Publication number: 20110222699
    Abstract: A noise reduction device is disclosed, in which noise reduction device, a controlling sound generator outputs a white noise generated by a white-noise generator, and this white noise is sensed by an error sensor for identifying an acoustic transmission function covering a path from the controlling sound generator to the error sensor. At this time, an identification controller prompts the white noise generator to generate a white noise for identifying the acoustic transmission function provided that an ambient noise level sensed by the error sensor is not greater than a given threshold.
    Type: Application
    Filed: March 11, 2011
    Publication date: September 15, 2011
    Applicant: PANASONIC CORPORATION
    Inventors: Tsuyoshi Maeda, Yoshifumi Asao
  • Publication number: 20110222698
    Abstract: A noise reduction device of the present invention comprises a control filter unit for generating a control sound signal to cancel out a noise, a control speaker for outputting a control sound according to the control sound signal from the control filter unit, an error microphone for detecting a residual sound by superimposing the noise upon the control sound output from the control speaker, and an obstacle detector for detecting an obstacle around the error microphone, wherein the control filter unit generates the control sound signal according to data from the error microphone and the obstacle detector.
    Type: Application
    Filed: March 8, 2011
    Publication date: September 15, 2011
    Applicant: PANASONIC CORPORATION
    Inventors: Yoshifumi Asao, Tsuyoshi Maeda
  • Patent number: 7995163
    Abstract: A liquid crystal device includes a pair of substrates and a liquid crystal layer between the pair of substrates. In addition, the device includes a plurality of dots capable of independently applying voltage to the liquid crystal layer, each dot having a dot area that includes a first section and a second section. A color filter is arranged in the first section of at least one of the dots. A substantially transparent area is arranged in the at least one of the dots in the second section where the color filter is not arranged.
    Type: Grant
    Filed: October 25, 2010
    Date of Patent: August 9, 2011
    Assignee: Seiko Epson Corporation
    Inventors: Osamu Okumura, Eiji Okamoto, Tsuyoshi Maeda, Toshiharu Matsushima
  • Patent number: 7980911
    Abstract: A light emitting apparatus having light emitting devices having a stack of a light-transmitting anode, a functional layer including at least a light emitting layer, and a cathode for a plurality of pixels corresponding to red, green, and blue colors on a substrate, wherein an optical resonator having a lower-layer-side reflecting layer at a lower-layer side of the anode is formed in the light emitting device, wherein a plurality of the pixels include pixels which correspond to different thicknesses of a anode, and wherein a light-transmitting insulating protective film is formed between the anode and the lower-layer-side reflecting layer to cover the lower-layer-side reflecting layer.
    Type: Grant
    Filed: March 6, 2009
    Date of Patent: July 19, 2011
    Assignee: Seiko Epson Corporation
    Inventors: Tsuyoshi Maeda, Tomotaka Matsumoto
  • Patent number: 7907223
    Abstract: An electrooptical device which simultaneously displays a first and second image in different directions. The electrooptical device includes a display panel including a plurality of pixel rows. Each pixel row includes first pixels for displaying the first image, first light-shielding portions, second pixels for displaying the second image, and second light-shielding portions which are wider than the first light-shielding portions. The electrooptical device also includes a light-transmissive substrate provided parallel to the display panel, and a light-shielding barrier layer provided on the substrate which includes apertures that align with the second light-shielding portions when viewed from a direction that is normal to the display panel.
    Type: Grant
    Filed: September 4, 2007
    Date of Patent: March 15, 2011
    Assignee: Sony Corporation
    Inventor: Tsuyoshi Maeda
  • Patent number: 7888866
    Abstract: A light-emitting device includes a light-emitting element in which a first electrode layer, a functional layer having at least a light-emitting layer, and a second electrode layer are laminated. At least one of the first electrode layer and the second electrode layer has a light-transmissive electrode layer. A refractive material layer is provided at a side of the light-transmissive electrode layer not facing the functional layer. At a side of the refractive material layer not facing the light-transmissive electrode layer, a substrate formed with irregularities on a surface thereof abutting the refractive material layer is provided.
    Type: Grant
    Filed: February 16, 2006
    Date of Patent: February 15, 2011
    Assignee: Seiko Epson Corporation
    Inventor: Tsuyoshi Maeda
  • Publication number: 20110032458
    Abstract: A liquid crystal device includes a pair of substrates and a liquid crystal layer between the pair of substrates. In addition, the device includes a plurality of dots capable of independently applying voltage to the liquid crystal layer, each dot having a dot area that includes a first section and a second section. A color filter is arranged in the first section of at least one of the dots. A substantially transparent area is arranged in the at least one of the dots in the second section where the color filter is not arranged.
    Type: Application
    Filed: October 25, 2010
    Publication date: February 10, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Osamu Okumura, Eiji Okamoto, Tsuyoshi Maeda, Toshiharu Matsushima
  • Publication number: 20100296033
    Abstract: A liquid crystal display device, without light leakage in a black display mode, is provided. The liquid crystal display (LCD) device includes a LCD panel, a light source, and an optical filter between the LCD and the light source. When the LCD panel is in the black display mode without the optical filter, leakage light leaking from the LCD panel in an oblique direction shows a hue having a local minimum value in a wavelength range from 450 nm to 550 nm. Normal incident light entering into the LCD in a normal direction shows a hue same as that of light just emitted from the light source, and oblique incident light entering into the LCD panel in an oblique direction shows a hue having a local maximum value in a wavelength range from 400 nm to less than 550 nm.
    Type: Application
    Filed: April 26, 2010
    Publication date: November 25, 2010
    Inventors: Tsuyoshi MAEDA, Toyokazu Ogasawara