Patents by Inventor Yuji Yakura

Yuji Yakura 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: 20230142989
    Abstract: Even in a case where the amount of incident light is small, a high-Quality captured image can be obtained. An electronic device includes: a display unit; a first imaging unit that is disposed on a side opposite to a display surface of the display unit and is capable of capturing an image of light in an infrared light wavelength band that has passed through the display unit; a second imaging unit that is disposed on a side opposite to the display surface of the display unit and is capable of capturing as image of light in a visible light wavelength band that has passed through the display unit; and a correction unit that corrects image data imaged by the second imaging unit on the basis of image data imaged by the first imaging unit.
    Type: Application
    Filed: March 9, 2021
    Publication date: May 11, 2023
    Inventors: Yuji Yakura, Masashi Nakata
  • Patent number: 8210641
    Abstract: A liquid ejection head includes an energy-generating element arranged on a semiconductor substrate, a barrier layer deposited on the semiconductor substrate for forming a liquid chamber in the periphery of the energy-generating element, and a nozzle sheet bonded on the barrier layer and having a nozzle formed at a position opposing the energy-generating element, in which the liquid ejection head ejects liquid contained in the liquid chamber from the nozzle as liquid droplets by the energy-generating element, and the barrier layer is provided with a plurality of depressions, each having an independent contour, arranged within a range, which is separated from the border of the barrier layer, on an adhesive region adhering to the nozzle sheet.
    Type: Grant
    Filed: November 4, 2008
    Date of Patent: July 3, 2012
    Assignee: Sony Corporation
    Inventors: Takeo Eguchi, Shogo Ono, Kazuyasu Takenaka, Atsushi Nakamura, Yuichiro Ikemoto, Shigeyoshi Hirashima, Atsushi Nakayama, Shota Nishi, Yuji Yakura, Shigeyoshi Fujiki, Manabu Matsuda
  • Patent number: 8201920
    Abstract: A head cartridge and a liquid ejection apparatus in which cleaning is performed using a liquid absorbing force of a wiping member produced along with restoration of temporarily increased elastic displacement of the wiping member.
    Type: Grant
    Filed: November 27, 2007
    Date of Patent: June 19, 2012
    Assignee: Sony Corporation
    Inventors: Atsushi Nakamura, Shota Nishi, Masato Nakamura, Toshio Fukuda, Yuji Yakura, Shigeyoshi Hirashima, Shinichi Horii
  • Patent number: 8109584
    Abstract: A liquid ejection head includes an energy-generating element arranged on a semiconductor substrate, a barrier layer deposited on the semiconductor substrate for forming a liquid chamber in the periphery of the energy-generating element, and a nozzle sheet bonded on the barrier layer and having a nozzle formed at a position opposing the energy-generating element, in which the liquid ejection head ejects liquid contained in the liquid chamber from the nozzle as liquid droplets by the energy-generating element, and the barrier layer is provided with a plurality of depressions, each having an independent contour, arranged within a range, which is separated from the border of the barrier layer, on an adhesive region adhering to the nozzle sheet.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: February 7, 2012
    Assignee: Sony Corporation
    Inventors: Takeo Eguchi, Shogo Ono, Kazuyasu Takenaka, Atsushi Nakamura, Yuichiro Ikemoto, Shigeyoshi Hirashima, Atsushi Nakayama, Shota Nishi, Yuji Yakura, Shigeyoshi Fujiki, Manabu Matsuda
  • Patent number: 8007072
    Abstract: A cleaning blade which wipes a liquid discharge area by being moved relatively with respect to the liquid discharge area of a liquid discharge head having the liquid discharge area in which liquid discharge nozzles are arranged to discharge a liquid is disclosed. The cleaning blade includes: a supporting plate which has an adhesive agent layer on its front surface; and a wipe part which is slid and contacted with the liquid discharge area, the wipe part formed in which an elastic part formed of a synthetic resin is formed in one piece on the adhesive agent layer, and a tip end thereof is cut in a predetermined shape.
    Type: Grant
    Filed: March 12, 2007
    Date of Patent: August 30, 2011
    Assignee: Sony Corporation
    Inventors: Shota Nishi, Shigeyoshi Fujiki, Manabu Matsuda, Yuji Yakura, Makoto Ando
  • Patent number: 7997679
    Abstract: An image forming apparatus for forming an image on a recording medium is disclosed. The image forming apparatus includes a print head (4) having an ink emitting surface (6) in which there are formed a plural number of ink emitting openings (13). An ink is emitted from the ink emitting openings (13) for forming an image on a recording medium. The image forming apparatus also includes an emission controller (41) for controlling the ink emission from the ink emitting openings (13) formed in the ink emitting surface (6). The emission controller (41) is responsive to an input image signal to control the quantity of preliminary ink emission from one or more of the ink emitting openings (13) or to select one or more of the ink emitting openings (13).
    Type: Grant
    Filed: March 18, 2008
    Date of Patent: August 16, 2011
    Assignee: Sony Corporation
    Inventors: Yuji Yakura, Kenji Suzuki, Hiroshi Tokunaga, Shinichi Horii
  • Patent number: 7935389
    Abstract: A printer is provided which sprays ink from nozzles to print recording paper P.
    Type: Grant
    Filed: November 4, 2004
    Date of Patent: May 3, 2011
    Assignee: Sony Corporation
    Inventors: Takanori Takahashi, Kenji Okamoto, Soichi Kuwahara, Yuji Yakura, Shinichi Horii, Yoshiaki Haba, Hiromitsu Takeda
  • Patent number: 7824005
    Abstract: A liquid ejection device includes: a liquid ejection head which includes an ejection surface and an ejection port formed at the ejection surface, ejects a droplet of liquid from the ejection port, and allows the liquid to land on an object; an elastic absorbing member which comes into contact with the ejection surface of the liquid ejection head, and absorbs the liquid adhering to the ejection surface; and moving means for moving the absorbing member with respect to the ejection surface while the absorbing member is in contact with the ejection surface, in which the absorbing member has a surface layer which is impregnated with a solution containing a surfactant.
    Type: Grant
    Filed: August 29, 2006
    Date of Patent: November 2, 2010
    Assignee: Sony Corporation
    Inventors: Yuji Yakura, Masahiro Koike, Shota Nishi, Yasuhiro Tanaka
  • Patent number: 7735960
    Abstract: A head cartridge and a liquid ejection apparatus are provided in which cleaning performance of cleaning means is improved using a liquid absorbing force of a wiping member produced along with restoration of temporarily increased elastic displacement of the wiping member. An elastic displacement h (height of a projection) of a cleaning roller temporarily produced by the projection arranged at a position in the foreground of ink ejection nozzles in the cleaning direction of a nozzle surface is established to satisfy the following condition: h>(Vu/Vr)(L+n/2??/2), where the restoring speed of the elastic deformation of the cleaning roller is denoted as Vu; the moving speed of the cleaning roller is denoted as Vr; the movement distance of the cleaning roller from a restoring initiation point of the elastic deformation to the center of the liquid ejection nozzles is L; the contact width between the cleaning roller and the nozzle surface is n; and the diameter of the ink ejection nozzle is ?.
    Type: Grant
    Filed: July 5, 2007
    Date of Patent: June 15, 2010
    Assignee: Sony Corporation
    Inventors: Atsushi Nakamura, Shoto Nishi, Masato Nakamura, Toshio Fukuda, Yuji Yakura, Shigeyoshi Hirashima, Shinichi Horii
  • Patent number: 7735990
    Abstract: Disclosed is an ink liquid used in a printer device of the ink jet system for recording an image or letters/characters. A surfactant containing an organic compound represented by the following chemical formula 1: where m and n are integers not less than 1, is contained in an ink 2 to prevent blurring or bleeding from being produced at a point of deposition of an ink liquid droplet.
    Type: Grant
    Filed: May 8, 2007
    Date of Patent: June 15, 2010
    Assignee: Sony Corporation
    Inventors: Toshio Fukuda, Yuji Yakura, Masato Nakamura
  • Patent number: 7665823
    Abstract: In a liquid discharging apparatus for discharging droplets from a liquid discharge nozzle to a discharge object to be discharged and in a method for controlling the liquid discharging apparatus, cleaning effects for the ink discharge nozzle and the adjacent areas can be enhanced, and the time required for a series of performance maintaining operations can be reduced. The apparatus includes a platen plate for supporting recording paper as the discharge object, defining a positional relationship between the discharge object and the liquid discharge head, and receiving the droplets discharged from the liquid discharge head. Ink droplets are preliminarily discharged from the ink discharge nozzle to the platen plate.
    Type: Grant
    Filed: July 2, 2004
    Date of Patent: February 23, 2010
    Assignee: Sony Corporation
    Inventors: Yuji Yakura, Kenji Suzuki, Takanori Takahashi
  • Patent number: 7581809
    Abstract: A liquid ejection head includes an energy-generating element arranged on a semiconductor substrate, a barrier layer deposited on the semiconductor substrate for forming a liquid chamber in the periphery of the energy-generating element, and a nozzle sheet bonded on the barrier layer and having a nozzle formed at a position opposing the energy-generating element, in which the liquid ejection head ejects liquid contained in the liquid chamber from the nozzle as liquid droplets by the energy-generating element, and the barrier layer is provided with a plurality of depressions, each having an independent contour, arranged within a range, which is separated from the border of the barrier layer, on an adhesive region adhering to the nozzle sheet.
    Type: Grant
    Filed: May 31, 2006
    Date of Patent: September 1, 2009
    Assignee: Sony Corporation
    Inventors: Takeo Eguchi, Shogo Ono, Kazuyasu Takenaka, Atsushi Nakamura, Yuichiro Ikemoto, Shigeyoshi Hirashima, Atsushi Nakayama, Shota Nishi, Yuji Yakura, Shigeyoshi Fujiki, Manabu Matsuda
  • Publication number: 20090135224
    Abstract: A liquid discharger wherein, when a liquid discharge operation on a discharge object is started, a cap is opened in order to wipe a liquid discharge surface by bringing a cleaning member into contact with and moving the cleaning member along the liquid discharge surface, then liquid drops are preliminarily discharged to the cap from liquid discharge nozzles after the cleaning member has moved along the liquid discharge surface, and then, while the cap is withdrawn from the liquid discharge surface, prior to discharging liquid onto the discharge object, liquid drops are preliminarily discharged to a platen plate from the liquid discharge nozzles.
    Type: Application
    Filed: May 27, 2008
    Publication date: May 28, 2009
    Applicant: Sony Corporation
    Inventors: Yuji Yakura, Takanori Takahashi, Hiroshi Udagawa, Hiromitsu Takeda, Toshiki Kagami, Shinichi Horii
  • Publication number: 20090085955
    Abstract: A liquid ejection head includes an energy-generating element arranged on a semiconductor substrate, a barrier layer deposited on the semiconductor substrate for forming a liquid chamber in the periphery of the energy-generating element, and a nozzle sheet bonded on the barrier layer and having a nozzle formed at a position opposing the energy-generating element, in which the liquid ejection head ejects liquid contained in the liquid chamber from the nozzle as liquid droplets by the energy-generating element, and the barrier layer is provided with a plurality of depressions, each having an independent contour, arranged within a range, which is separated from the border of the barrier layer, on an adhesive region adhering to the nozzle sheet.
    Type: Application
    Filed: October 31, 2008
    Publication date: April 2, 2009
    Applicant: Sony Corporation
    Inventors: Takeo EGUCHI, Shogo Ono, Kazuyasu Takenaka, Atsushi Nakamura, Yuichiro Ikemoto, Shigeyoshi Hirashima, Atsushi Nakayama, Shota Nishi, Yuji Yakura, Shigeyoshi Fujiki, Manabu Matsuda
  • Publication number: 20090056768
    Abstract: A liquid ejection head includes an energy-generating element arranged on a semiconductor substrate, a barrier layer deposited on the semiconductor substrate for forming a liquid chamber in the periphery of the energy-generating element, and a nozzle sheet bonded on the barrier layer and having a nozzle formed at a position opposing the energy-generating element, in which the liquid ejection head ejects liquid contained in the liquid chamber from the nozzle as liquid droplets by the energy-generating element, and the barrier layer is provided with a plurality of depressions, each having an independent contour, arranged within a range, which is separated from the border of the barrier layer, on an adhesive region adhering to the nozzle sheet.
    Type: Application
    Filed: November 4, 2008
    Publication date: March 5, 2009
    Applicant: Sony Corporation
    Inventors: Takeo EGUCHI, Shogo Ono, Kazuyasu Takenaka, Atsushi Nakamura, Yuichiro Ikemoto, Shigeyoshi Hirashima, Atsushi Nakayama, Shota Nishi, Yuji Yakura, Shigeyoshi Fujiki, Manabu Matsuda
  • Patent number: 7475978
    Abstract: A recording liquid contains a coloring matter, a solvent for dissolving or dispersing the coloring matter, and a nonionic surfactant, wherein the recording liquid has a foaming power of 0 mm to 50 mm and a foam stability of 0 mm to 50 mm, the foaming power and the foam stability being determined by substantially the same test method as that used to determine the foaming power and foam stability according to JIS-K3362. A liquid cartridge containing the recording liquid, a liquid ejection cartridge which ejects the recording liquid, a liquid ejection apparatus, and a liquid ejection method are also disclosed.
    Type: Grant
    Filed: May 7, 2007
    Date of Patent: January 13, 2009
    Assignee: Sony Corporation
    Inventors: Toshio Fukuda, Masato Nakamura, Yuji Yakura
  • Patent number: 7470017
    Abstract: Disclosed is an ink liquid used in a printer device of the ink jet system for recording an image or letters/characters. A surfactant containing an organic compound represented by the following chemical formula 1: where m and n are integers not less than 1, is contained in an ink 2 to prevent blurring or bleeding from being produced at a point of deposition of an ink liquid droplet i.
    Type: Grant
    Filed: May 8, 2007
    Date of Patent: December 30, 2008
    Assignee: Sony Corporation
    Inventors: Toshio Fukuda, Yuji Yakura, Masato Nakamura
  • Publication number: 20080180472
    Abstract: An image forming apparatus for forming an image on a recording medium is disclosed. The image forming apparatus includes a print head (4) having an ink emitting surface (6) in which there are formed a plural number of ink emitting openings (13). An ink is emitted from the ink emitting openings (13) for forming an image on a recording medium. The image forming apparatus also includes an emission controller (41) for controlling the ink emission from the ink emitting openings (13) formed in the ink emitting surface (6). The emission controller (41) is responsive to an input image signal to control the quantity of preliminary ink emission from one or more of the ink emitting openings (13) or to select one or more of the ink emitting openings (13).
    Type: Application
    Filed: March 18, 2008
    Publication date: July 31, 2008
    Inventors: Yuji Yakura, Kenji Suzuki, Hiroshi Tokunaga, Shinichi Horii
  • Patent number: 7384121
    Abstract: A cleaner of a liquid discharge head having a nozzle surface provided with a liquid discharge nozzle for discharging a predetermined liquid cleans the nozzle surface by moving relative to the liquid discharge head. It includes a cleaning roller for wiping the nozzle surface, the surface of the cleaning roller which comes into contact with the nozzle surface being formed of a fibrous absorbing member.
    Type: Grant
    Filed: April 20, 2005
    Date of Patent: June 10, 2008
    Assignee: Sony Corporation
    Inventors: Shota Nishi, Yuji Yakura, Masayuki Takakura, Shinichi Horii
  • Publication number: 20080074463
    Abstract: A head cartridge and a liquid ejection apparatus in which cleaning is performed using a liquid absorbing force of a wiping member produced along with restoration of temporarily increased elastic displacement of the wiping member. In one embodiment, an elastic displacement h (height of a projection) of a cleaning roller temporarily produced by the projection arranged at a position in the foreground of ink ejection nozzles in the cleaning direction of a nozzle surface is established to satisfy the following condition: h>(Vu/Vr)(L+n/2??/2), where the restoring speed of the elastic deformation of the cleaning roller is denoted as Vu, the moving speed of the cleaning roller is denoted as Vr, the movement distance of the cleaning roller from a restoring initiation point of the elastic deformation to the center of the liquid ejection nozzles is L, the contact width between the cleaning roller and the nozzle surface is n, and the diameter of the ink ejection nozzle is ?.
    Type: Application
    Filed: November 27, 2007
    Publication date: March 27, 2008
    Applicant: SONY CORPORATION
    Inventors: Atsushi Nakamura, Shota Nishi, Masato Nakamura, Toshio Fukuda, Yuji Yakura, Shigeyoshi Hirashima, Shinichi Horii