Patents by Inventor Motonobu Yoshikawa

Motonobu Yoshikawa 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: 20180072428
    Abstract: A screen device in accordance with the present disclosure comprises: a screen that has a plurality of photoelectric conversion elements and receives image light from an image projection device; a power supply unit that supplies electric power generated by photoelectric conversion from the received image light by the plurality of photoelectric conversion elements; a flying object that supports the screen and flies on the electric power supplied from the power supply unit; and a flight controller that controls flight of the flying object. An image projection system in accordance with the present disclosure comprises: the screen device; and the image projection device that projects the image light onto the screen.
    Type: Application
    Filed: May 18, 2016
    Publication date: March 15, 2018
    Inventors: YUSUKE ADACHI, MOTONOBU YOSHIKAWA, MASAHIRO INATA, NORIKAZU KATSUYAMA, RYO OKUMURA, FUMIO MURAMATSU, NAOTO YUMIKI
  • Patent number: 9201187
    Abstract: A light-emitting device used in a liquid crystal display device is provided with a planar illuminator that focuses emitted light on a predetermined light focus point, and an optical deflector that two dimensionally deflects the light from the planar illuminator. The planar illuminator switches an emission direction of the light to enable alternate switching between a first light focus state in which the predetermined light focus point is the position of a right eye of a viewer and a second light focus state in which the predetermined light focus point is the position of a left eye of the viewer. The optical deflector can modulate each of the predetermined light focus point in the first light focus state and the predetermined light focus point in the second light focus state according to movement of the viewer.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: December 1, 2015
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Shinichi Shikii, Katsuhiko Hayashi, Motonobu Yoshikawa
  • Patent number: 9052565
    Abstract: A light deflector capable of deflecting light in a predetermined deflection direction and modulating the angle of deflection of light includes a plurality of liquid crystal deflection elements arranged in the predetermined deflection direction. In at least one pair of adjacent liquid crystal deflection elements, the dimension of one of the liquid crystal deflection elements in the predetermined deflection direction is different from the dimension of the other liquid crystal deflection element in the predetermined deflection direction.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: June 9, 2015
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Shinichi Shikii, Katsuhiko Hayashi, Motonobu Yoshikawa
  • Publication number: 20150022746
    Abstract: A backlight device and an image display apparatus which are capable of controlling the degree of diffusion of emitted light are provided. The backlight device according to the present disclosure includes: a light source; a light guide plate that causes surface emission of light emitted from the light source; a directivity control film that is provided on a light-emitting side of the light guide plate, and causes the light emitted from the light guide plate to have directivity; and a liquid crystal diffusion element that is switchable between a first state in which the light emitted from the directivity control film is transmitted as it is, and a second state in which the light emitted from the directivity control film is diffused.
    Type: Application
    Filed: October 10, 2014
    Publication date: January 22, 2015
    Inventors: Kouki ICHIHASHI, Motonobu YOSHIKAWA, Masahiro KASANO
  • Patent number: 8845119
    Abstract: A light emitting device (1) is configured to radiate light with an optical axis A at the center, and is provided with a light source (2), and a lens (3) that radially expands the light from light source (2). The light source (2) has a light emitting surface (21) extending in an X direction orthogonal to the optical axis A. The lens (3) is configured to have a greater refractive power in a Y direction orthogonal to the X direction than in the X direction. For example, the lens (3) has a light entrance surface (31) including an anamorphic curved surface with different curve forms between the X direction and the Y direction.
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: September 30, 2014
    Assignee: Panasonic Corporation
    Inventors: Tomoko Iiyama, Motonobu Yoshikawa, Daizaburo Matsuki
  • Patent number: 8508689
    Abstract: A light-emitting device includes a light-emitting element 110; and a lens section 132 covering over the light-emitting element 110. The lens section 132 includes an entrance surface S1 on which light from the light-emitting element 110 is incident; an exit surface S2 from which the light incident on the entrance surface S1 is emitted; and an optical axis L extending so as to penetrate the entrance surface S1 and the exit surface S2. A concave section 132a is formed in an area of the exit surface S2, which contains the optical axis L, and two flat sections 132b are formed so as to face each other across the optical axis L. The exit surface S2 defines an upwardly-protruding curved surface formed between the two flat sections 132b, and the optical axis L is coincidence with a reference optical axis of the light-emitting element 110.
    Type: Grant
    Filed: June 22, 2009
    Date of Patent: August 13, 2013
    Assignee: Panasonic Corporation
    Inventors: Takashi Kuwaharada, Tooru Aoyagi, Hiroshi Yamaguchi, Seiji Hamada, Motonobu Yoshikawa
  • Publication number: 20130093663
    Abstract: A light deflector capable of deflecting light in a predetermined deflection direction and modulating the angle of deflection of light includes a plurality of liquid crystal deflection elements arranged in the predetermined deflection direction. In at least one pair of adjacent liquid crystal deflection elements, the dimension of one of the liquid crystal deflection elements in the predetermined deflection direction is different from the dimension of the other liquid crystal deflection element in the predetermined deflection direction.
    Type: Application
    Filed: November 16, 2011
    Publication date: April 18, 2013
    Inventors: Shinichi Shikii, Katsuhiko Hayashi, Motonobu Yoshikawa
  • Patent number: 8390717
    Abstract: In an imaging device, a display control device, and a display device which are operable to conveniently display reduced images in accordance with a motion and an attitude at the time of shooting, a motion detection section detects the motion of the imaging device during continuous shooting. A recording section records reduced images of the shot images obtained by the imaging device, and motion information on the motion of the imaging device corresponding to the reduced images. An image extraction section extracts a plurality of the reduced images of the consecutively shooting from among the recorded reduced images. An image display control section causes a display section to display the extracted reduced images. An image display control section arranges the extracted reduced images in accordance with the motion information and causes the display section to display the extracted reduced images.
    Type: Grant
    Filed: February 10, 2011
    Date of Patent: March 5, 2013
    Assignee: Panasonic Corporation
    Inventors: Motonobu Yoshikawa, Naoto Yumiki
  • Publication number: 20120287037
    Abstract: A light-emitting device used in a liquid crystal display device is provided with a planar illuminator that focuses emitted light on a predetermined light focus point, and an optical deflector that two dimensionally deflects the light from the planar illuminator. The planar illuminator switches an emission direction of the light to enable alternate switching between a first light focus state in which the predetermined light focus point is the position of a right eye of a viewer and a second light focus state in which the predetermined light focus point is the position of a left eye of the viewer. The optical deflector can modulate each of the predetermined light focus point in the first light focus state and the predetermined light focus point in the second light focus state according to movement of the viewer.
    Type: Application
    Filed: November 16, 2011
    Publication date: November 15, 2012
    Inventors: Shinichi Shikii, Katsuhiko Hayashi, Motonobu Yoshikawa
  • Patent number: 8289477
    Abstract: A backlight apparatus is provided that enables a balance of brightness to be maintained over the entire area of a display screen and long life to be achieved. The surface of substrate 130 is opposite the rear surface of liquid crystal panel 110. LEDs 140 are placed on the surface of substrate 130. LED drive circuits 150 supply LEDs 140 with a current that causes LEDs 140 to emit light that illuminates liquid crystal panel 110. LED drive circuits 150 supply a lower current to LEDs 140 placed in an area having a higher ambient temperature within the surface area of substrate 130.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: October 16, 2012
    Assignee: Panasonic Corporation
    Inventors: Takahiro Kobayashi, Motonobu Yoshikawa, Yuichi Nishikoji
  • Patent number: 8259394
    Abstract: A diffusing plate is formed so as to have a surface having a larger surface roughness than a predetermined wavelength and having an aperiodic roughness shape. A plurality of fine concave/convex portions are formed on the surface so as to be arranged within a cycle equal to and smaller than a predetermined wavelength.
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: September 4, 2012
    Assignee: Panasonic Corporation
    Inventors: Kazuhiro Yamada, Takamasa Tamura, Motonobu Yoshikawa, Hiroshi Yamaguchi, Kazuhiko Ishimaru
  • Patent number: 8184373
    Abstract: The present invention relates to a structure comprising: a resin pattern (A)3 formed on a base material 1 and having structure units of a predetermined shape; and a resin pattern (B)5 formed on a surface of the resin pattern (A)3 and having microscopic structure units, of a predetermined shape, arranged at a period shorter than or equal to a wavelength range of a using light, and to a method for producing the structure, comprising the steps of: (i) forming a resin layer 2 on the base material 1 and subjecting the resin layer 2 to an exposure-development process so as to form the resin pattern (A)3; and (ii) subjecting a surface of the resin pattern (A)3 to an exposure-development process so as to form the resin pattern (B)5, wherein the steps (i) and (ii) are sequential.
    Type: Grant
    Filed: May 9, 2005
    Date of Patent: May 22, 2012
    Assignee: Panasonic Corporation
    Inventors: Yasuhiro Tanaka, Makoto Umetani, Hiroshi Yamaguchi, Motonobu Yoshikawa, Katsuhiko Hayashi
  • Publication number: 20120087109
    Abstract: A backlight apparatus is provided that enables a balance of brightness to be maintained over the entire area of a display screen and long life to be achieved. The surface of substrate 130 is opposite the rear surface of liquid crystal panel 110. LEDs 140 are placed on the surface of substrate 130. LED drive circuits 150 supply LEDs 140 with a current that causes LEDs 140 to emit light that illuminates liquid crystal panel 110. LED drive circuits 150 supply a lower current to LEDs 140 placed in an area having a higher ambient temperature within the surface area of substrate 130.
    Type: Application
    Filed: December 19, 2011
    Publication date: April 12, 2012
    Applicant: PANASONIC CORPORATION
    Inventors: Takahiro KOBAYASHI, Motonobu YOSHIKAWA, Yuichi NISHIKOJI
  • Publication number: 20120057101
    Abstract: A light emitting device (1) is configured to radiate light with an optical axis A at the center, and is provided with a light source (2), and a lens (3) that radially expands the light from light source (2). The light source (2) has a light emitting surface (21) extending in an X direction orthogonal to the optical axis A. The lens (3) is configured to have a greater refractive power in a Y direction orthogonal to the X direction than in the X direction. For example, the lens (3) has a light entrance surface (31) including an anamorphic curved surface with different curve forms between the X direction and the Y direction.
    Type: Application
    Filed: January 21, 2011
    Publication date: March 8, 2012
    Applicant: PANASONIC CORPORATION
    Inventors: Tomoko Iiyama, Motonobu Yoshikawa, Daizaburo Matsuki
  • Publication number: 20110319659
    Abstract: A method for producing methionine includes a hydrolyzing step of hydrolyzing 5-(?-methylmercaptoethyl)hydantoin, and a crystallizing step of crystallizing with carbon dioxide introduced into a reaction solution after hydrolysis, to obtain methionine. In the crystallizing step, as carbon dioxide introduced into the hydrolysis reaction solution, carbon dioxide that is separated in a carbon dioxide separation section from a reformed gas formed by steam reforming reaction in a steam reformation section and carbon dioxide that is separated in an exhaust gas separation section from a combustion exhaust gas generated by pure oxygen combustion in a hydrocarbon heating furnace and a reformation reaction heating furnace are used.
    Type: Application
    Filed: June 28, 2011
    Publication date: December 29, 2011
    Inventors: Motonobu YOSHIKAWA, Takehiro Nakasuji
  • Patent number: 8081271
    Abstract: A backlight apparatus is provided that enables a balance of brightness to be maintained over the entire area of a display screen and long life to be achieved. The surface of substrate 130 is opposite the rear surface of liquid crystal panel 110. LEDs 140 are placed on the surface of substrate 130. LED drive circuits 150 supply LEDs 140 with a current that causes LEDs 140 to emit light that illuminates liquid crystal panel 110. LED drive circuits 150 supply a lower current to LEDs 140 placed in an area having a higher ambient temperature within the surface area of substrate 130.
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: December 20, 2011
    Assignee: Panasonic Corporation
    Inventors: Takahiro Kobayashi, Motonobu Yoshikawa, Yuichi Nishikoji
  • Publication number: 20110299169
    Abstract: A diffusing plate has a surface including a plurality of fine concave/convex portions regularly arranged within a cycle equal to or smaller than a predetermined wavelength. The surface has a larger surface roughness than the predetermined wavelength. An average value for an angle between a normal vector of the tangent plane of a roughness shape of the surface and a normal vector of a reference plane of the surface is 5 degrees or more.
    Type: Application
    Filed: August 15, 2011
    Publication date: December 8, 2011
    Applicant: Panasonic Corporation
    Inventors: Kazuhiro YAMADA, Takamasa TAMURA, Motonobu YOSHIKAWA, Hiroshi YAMAGUCHI, Kazuhiko ISHIMARU
  • Patent number: 8023190
    Abstract: A diffusing plate has a surface including a plurality of fine concave/convex portions regularly arranged within a cycle equal to or smaller than a predetermined wavelength. The surface has a larger surface roughness than the predetermined wavelength. An average value for an angle between a normal vector of the tangent plane of a roughness shape of the surface and a normal vector of a reference plane of the surface is 5 degrees or more.
    Type: Grant
    Filed: May 15, 2007
    Date of Patent: September 20, 2011
    Assignee: Panasonic Corporation
    Inventors: Kazuhiro Yamada, Takamasa Tamura, Motonobu Yoshikawa, Hiroshi Yamaguchi, Kazuhiko Ishimaru
  • Publication number: 20110188123
    Abstract: A diffusing plate is formed so as to have a surface having a larger surface roughness than a predetermined wavelength and having an aperiodic roughness shape. A plurality of fine concave/convex portions are formed on the surface so as to be arranged within a cycle equal to and smaller than a predetermined wavelength.
    Type: Application
    Filed: April 15, 2011
    Publication date: August 4, 2011
    Applicant: PANASONIC CORPORATION
    Inventors: Kazuhiro YAMADA, Takamasa TAMURA, Motonobu YOSHIKAWA, Hiroshi YAMAGUCHI, Kazuhiko ISHIMARU
  • Publication number: 20110134301
    Abstract: In an imaging device, a display control device, and a display device which are operable to conveniently display reduced images in accordance with a motion and an attitude at the time of shooting, a motion detection section detects the motion of the imaging device during continuous shooting. A recording section records reduced images of the shot images obtained by the imaging device, and motion information on the motion of the imaging device corresponding to the reduced images. An image extraction section extracts a plurality of the reduced images of the consecutively shooting from among the recorded reduced images. An image display control section causes a display section to display the extracted reduced images. An image display control section arranges the extracted reduced images in accordance with the motion information and causes the display section to display the extracted reduced images.
    Type: Application
    Filed: February 10, 2011
    Publication date: June 9, 2011
    Applicant: PANASONIC CORPORATION
    Inventors: Motonobu Yoshikawa, Naoto Yumiki