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).
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Publication number: 20230142989Abstract: 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: ApplicationFiled: March 9, 2021Publication date: May 11, 2023Inventors: Yuji Yakura, Masashi Nakata
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Patent number: 8210641Abstract: 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: GrantFiled: November 4, 2008Date of Patent: July 3, 2012Assignee: Sony CorporationInventors: Takeo Eguchi, Shogo Ono, Kazuyasu Takenaka, Atsushi Nakamura, Yuichiro Ikemoto, Shigeyoshi Hirashima, Atsushi Nakayama, Shota Nishi, Yuji Yakura, Shigeyoshi Fujiki, Manabu Matsuda
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Patent number: 8201920Abstract: 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: GrantFiled: November 27, 2007Date of Patent: June 19, 2012Assignee: Sony CorporationInventors: Atsushi Nakamura, Shota Nishi, Masato Nakamura, Toshio Fukuda, Yuji Yakura, Shigeyoshi Hirashima, Shinichi Horii
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Patent number: 8109584Abstract: 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: GrantFiled: October 31, 2008Date of Patent: February 7, 2012Assignee: Sony CorporationInventors: Takeo Eguchi, Shogo Ono, Kazuyasu Takenaka, Atsushi Nakamura, Yuichiro Ikemoto, Shigeyoshi Hirashima, Atsushi Nakayama, Shota Nishi, Yuji Yakura, Shigeyoshi Fujiki, Manabu Matsuda
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Patent number: 8007072Abstract: 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: GrantFiled: March 12, 2007Date of Patent: August 30, 2011Assignee: Sony CorporationInventors: Shota Nishi, Shigeyoshi Fujiki, Manabu Matsuda, Yuji Yakura, Makoto Ando
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Patent number: 7997679Abstract: 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: GrantFiled: March 18, 2008Date of Patent: August 16, 2011Assignee: Sony CorporationInventors: Yuji Yakura, Kenji Suzuki, Hiroshi Tokunaga, Shinichi Horii
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Patent number: 7935389Abstract: A printer is provided which sprays ink from nozzles to print recording paper P.Type: GrantFiled: November 4, 2004Date of Patent: May 3, 2011Assignee: Sony CorporationInventors: Takanori Takahashi, Kenji Okamoto, Soichi Kuwahara, Yuji Yakura, Shinichi Horii, Yoshiaki Haba, Hiromitsu Takeda
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Patent number: 7824005Abstract: 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: GrantFiled: August 29, 2006Date of Patent: November 2, 2010Assignee: Sony CorporationInventors: Yuji Yakura, Masahiro Koike, Shota Nishi, Yasuhiro Tanaka
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Patent number: 7735960Abstract: 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: GrantFiled: July 5, 2007Date of Patent: June 15, 2010Assignee: Sony CorporationInventors: Atsushi Nakamura, Shoto Nishi, Masato Nakamura, Toshio Fukuda, Yuji Yakura, Shigeyoshi Hirashima, Shinichi Horii
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Patent number: 7735990Abstract: 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: GrantFiled: May 8, 2007Date of Patent: June 15, 2010Assignee: Sony CorporationInventors: Toshio Fukuda, Yuji Yakura, Masato Nakamura
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Patent number: 7665823Abstract: 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: GrantFiled: July 2, 2004Date of Patent: February 23, 2010Assignee: Sony CorporationInventors: Yuji Yakura, Kenji Suzuki, Takanori Takahashi
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Patent number: 7581809Abstract: 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: GrantFiled: May 31, 2006Date of Patent: September 1, 2009Assignee: Sony CorporationInventors: Takeo Eguchi, Shogo Ono, Kazuyasu Takenaka, Atsushi Nakamura, Yuichiro Ikemoto, Shigeyoshi Hirashima, Atsushi Nakayama, Shota Nishi, Yuji Yakura, Shigeyoshi Fujiki, Manabu Matsuda
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Publication number: 20090135224Abstract: 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: ApplicationFiled: May 27, 2008Publication date: May 28, 2009Applicant: Sony CorporationInventors: Yuji Yakura, Takanori Takahashi, Hiroshi Udagawa, Hiromitsu Takeda, Toshiki Kagami, Shinichi Horii
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Publication number: 20090085955Abstract: 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: ApplicationFiled: October 31, 2008Publication date: April 2, 2009Applicant: Sony CorporationInventors: Takeo EGUCHI, Shogo Ono, Kazuyasu Takenaka, Atsushi Nakamura, Yuichiro Ikemoto, Shigeyoshi Hirashima, Atsushi Nakayama, Shota Nishi, Yuji Yakura, Shigeyoshi Fujiki, Manabu Matsuda
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Publication number: 20090056768Abstract: 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: ApplicationFiled: November 4, 2008Publication date: March 5, 2009Applicant: Sony CorporationInventors: Takeo EGUCHI, Shogo Ono, Kazuyasu Takenaka, Atsushi Nakamura, Yuichiro Ikemoto, Shigeyoshi Hirashima, Atsushi Nakayama, Shota Nishi, Yuji Yakura, Shigeyoshi Fujiki, Manabu Matsuda
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Patent number: 7475978Abstract: 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: GrantFiled: May 7, 2007Date of Patent: January 13, 2009Assignee: Sony CorporationInventors: Toshio Fukuda, Masato Nakamura, Yuji Yakura
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Patent number: 7470017Abstract: 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: GrantFiled: May 8, 2007Date of Patent: December 30, 2008Assignee: Sony CorporationInventors: Toshio Fukuda, Yuji Yakura, Masato Nakamura
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Publication number: 20080180472Abstract: 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: ApplicationFiled: March 18, 2008Publication date: July 31, 2008Inventors: Yuji Yakura, Kenji Suzuki, Hiroshi Tokunaga, Shinichi Horii
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Patent number: 7384121Abstract: 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: GrantFiled: April 20, 2005Date of Patent: June 10, 2008Assignee: Sony CorporationInventors: Shota Nishi, Yuji Yakura, Masayuki Takakura, Shinichi Horii
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Publication number: 20080074463Abstract: 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: ApplicationFiled: November 27, 2007Publication date: March 27, 2008Applicant: SONY CORPORATIONInventors: Atsushi Nakamura, Shota Nishi, Masato Nakamura, Toshio Fukuda, Yuji Yakura, Shigeyoshi Hirashima, Shinichi Horii