Patents by Inventor Takahide Miyashita

Takahide Miyashita 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: 8684485
    Abstract: A printing device includes a nozzle row for chromatic ink comprising K nozzles and a nozzle row for achromatic ink comprising (n·K) nozzles. In a color region, an image-forming operation is performed m times in which the movement direction of the nozzle rows switches alternately between forward and reverse directions, whereby a region of the image having a predetermined width is formed. The image-forming operation performed m times includes the image-forming operation performed once in which both of the nozzle rows for chromatic ink and for achromatic ink are used, and the image-forming operation performed (m?1) times in which only the nozzle row for chromatic ink is used. In a monochrome region, the image-forming operation is performed once in which only the nozzle row for achromatic ink is used, whereby a region of the image having a predetermined width is formed.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: April 1, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Akito Sato, Bunji Ishimoto, Takahide Miyashita, Katsuhiko Sugiyama, Yasuhiro Takeuchi
  • Patent number: 8465117
    Abstract: A fluid ejecting apparatus includes a head that is provided with a first-nozzle-row and a second-nozzle-row, a platen that is provided with a plurality of convex-portions, and a control unit repeats an operation of ejecting fluid from the nozzles moving in two directions of a forward-path and a backward-path. The control unit adjusts the ejecting time such that, at the medium of the convex-portions, an amount-of-deviation in the movement-direction of the dots formed on the forward-path and the backward-path by the first-nozzle-row is less than an amount-of-deviation of the dots formed on the forward-path and backward-path by the second-nozzle-row. In the ejection operation, and such that the position in the movement-direction of the dots formed by the second-nozzle-row is a position opposite to the side on which the head moves in the movement-direction with respect to the position in the movement-direction of the dots formed by the first-nozzle-row.
    Type: Grant
    Filed: January 19, 2011
    Date of Patent: June 18, 2013
    Assignee: Seiko Epson Corporation
    Inventors: Akito Sato, Tomohiro Yuda, Takahide Miyashita, Naoki Sudo, Mai Kubota, Bunji Ishimoto
  • Patent number: 8403442
    Abstract: A printing device is configured to print a first band in a first pass and to print a second band in a second pass so that the second band partially overlaps the first band for from an overlap printed area. The overlap printed area is divided by a single continuous boundary line into a first area that is printed during the first pass and a second area that is printed during the second pass. The boundary line includes a first boundary line portion where a parallel line extending parallel to a sub-scanning direction crosses the boundary line from the first area into the second area and a second boundary line portion where the parallel line crosses from the second area into the first area.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: March 26, 2013
    Assignee: Seiko Epson Corporation
    Inventors: Takahide Miyashita, Bunji Ishimoto, Tatsuo Furuta, Akito Sato
  • Patent number: 8313158
    Abstract: A printing apparatus including: first nozzles which discharge a dye ink; second nozzles which discharge a pigment ink of the same color as the dye ink; and a controller which controls the discharge of the inks from the first nozzles and the second nozzles, wherein the controller executes a first discharging operation for discharging the dye ink from the first nozzles and then discharging the pigment ink from the second nozzles at predetermined positions on a medium and executes a second discharging operation for discharging the pigment ink from the second nozzles and then discharging the dye ink from the first nozzles at positions different from the predetermined positions on the medium, and wherein a ratio of the dye ink to the pigment ink in the amount of ink discharged in the second discharging operation per unit area is less than that in the first discharging operation per unit area.
    Type: Grant
    Filed: July 12, 2010
    Date of Patent: November 20, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Mai Kubota, Tomohiro Yuda, Takahide Miyashita, Naoki Sudo, Akito Sato, Bunji Ishimoto
  • Patent number: 8303063
    Abstract: A printing apparatus including a first nozzle that ejects dye ink; a second nozzle that ejects pigment ink of a color that is the same as the dye ink; and a controller that controls ejection of ink from the first nozzle and the second nozzle. The controller performs a first ejection operation, in which the pigment ink is ejected from the second nozzle after the dye ink is ejected from the first nozzle, for a predetermined position on a medium and performs a second ejection operation, in which the dye ink is ejected from the first nozzle after the pigment ink is ejected from the second nozzle, for a second position on the medium. An amount of the pigment ink per unit area that is ejected in the second ejection operation is made smaller than an amount of the pigment ink per the unit area in the first ejection operation.
    Type: Grant
    Filed: July 12, 2010
    Date of Patent: November 6, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Mai Kubota, Bunji Ishimoto, Akito Sato, Tomohiro Yuda, Naoki Sudo, Takahide Miyashita
  • Publication number: 20110261099
    Abstract: A printing device is configured to print a first band in a first pass and to print a second band in a second pass so that the second band partially overlaps the first band for from an overlap printed area. The overlap printed area is divided by a single continuous boundary line into a first area that is printed during the first pass and a second area that is printed during the second pass. The boundary line includes a first boundary line portion where a parallel line extending parallel to a sub-scanning direction crosses the boundary line from the first area into the second area and a second boundary line portion where the parallel line crosses from the second area into the first area.
    Type: Application
    Filed: April 1, 2011
    Publication date: October 27, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takahide MIYASHITA, Bunji ISHIMOTO, Tatsuo FURUTA, Akito SATO
  • Publication number: 20110261100
    Abstract: A first pseudo band is printed, a second pseudo band is printed so as to partially overlap the first pseudo band, and the overlap printed area is divided by a single continuously boundary line into a first area first area printed by the first pseudo band, and a second area printed by the second pseudo band.
    Type: Application
    Filed: April 1, 2011
    Publication date: October 27, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takahide MIYASHITA, Bunji ISHIMOTO, Tatsuo FURUTA, Akito SATO
  • Publication number: 20110242177
    Abstract: A printing device includes a nozzle row for chromatic ink comprising K nozzles and a nozzle row for achromatic ink comprising (n·K) nozzles. In a color region, an image-forming operation is performed m times in which the movement direction of the nozzle rows switches alternately between forward and reverse directions, whereby a region of the image having a predetermined width is foamed along a first direction of an image. The image-forming operation performed m times includes the image-forming operation performed once in which both of the nozzle rows for chromatic ink and for achromatic ink are used, and the image-forming operation performed (m?1) times in which only the nozzle row for chromatic ink is used. In a monochrome region, the image-forming operation is performed once in which only the nozzle row for achromatic ink is used, whereby a region of the image having a predetermined width is formed.
    Type: Application
    Filed: April 1, 2011
    Publication date: October 6, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Akito SATO, Bunji ISHIMOTO, Takahide MIYASHITA, Katsuhiko SUGIYAMA, Yasuhiro TAKEUCHI
  • Publication number: 20110175958
    Abstract: A fluid ejecting apparatus includes a head that is provided with a first-nozzle-row and a second-nozzle-row, a platen that is provided with a plurality of convex-portions, and a control unit repeats an operation of ejecting fluid from the nozzles moving in two directions of a forward-path and a backward-path. The control unit adjusts the ejecting time such that, at the medium of the convex-portions, an amount-of-deviation in the movement-direction of the dots formed on the forward-path and the backward-path by the first-nozzle-row is less than an amount-of-deviation of the dots formed on the forward-path and backward-path by the second-nozzle-row. In the ejection operation, and such that the position in the movement-direction of the dots formed by the second-nozzle-row is a position opposite to the side on which the head moves in the movement-direction with respect to the position in the movement-direction of the dots formed by the first-nozzle-row.
    Type: Application
    Filed: January 19, 2011
    Publication date: July 21, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Akito Sato, Tomohiro Yuda, Takahide Miyashita, Naoki Sudo, Mai Kubota, Bunji Ishimoto
  • Publication number: 20110085000
    Abstract: There is provided a technique for suppressing the image quality of a printed image. A printing apparatus including: a first nozzle row in which nozzles ejecting dye ink of a certain color are arranged in a predetermined direction; a second nozzle row in which nozzles ejecting pigment ink of the certain color are arranged in the predetermined direction.
    Type: Application
    Filed: October 5, 2010
    Publication date: April 14, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Naoki Sudo, Mai Kubota, Akito Sato, Tomohiro Yuda, Takahide Miyashita, Bunji Ishimoto
  • Publication number: 20110063347
    Abstract: A printing apparatus including: first nozzles which discharge a dye ink; second nozzles which discharge a pigment ink of the same color as the dye ink; and a controller which controls the discharge of the inks from the first nozzles and the second nozzles, wherein the controller executes a first discharging operation for discharging the dye ink from the first nozzles and then discharging the pigment ink from the second nozzles at predetermined positions on a medium and executes a second discharging operation for discharging the pigment ink from the second nozzles and then discharging the dye ink from the first nozzles at positions different from the predetermined positions on the medium, and wherein a ratio of the dye ink to the pigment ink in the amount of ink discharged in the second discharging operation per unit area is less than that in the first discharging operation per unit area.
    Type: Application
    Filed: July 12, 2010
    Publication date: March 17, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Mai Kubota, Tomohiro Yuda, Takahide Miyashita, Naoki Sudo, Akito Sato, Bunji Ishimoto
  • Publication number: 20110057972
    Abstract: A printing apparatus including a first nozzle that ejects dye ink; a second nozzle that ejects pigment ink of a color that is the same as the dye ink; and a controller that controls ejection of ink from the first nozzle and the second nozzle. The controller performs a first ejection operation, in which the pigment ink is ejected from the second nozzle after the dye ink is ejected from the first nozzle, for a predetermined position on a medium and performs a second ejection operation, in which the dye ink is ejected from the first nozzle after the pigment ink is ejected from the second nozzle, for a second position on the medium. An amount of the pigment ink per unit area that is ejected in the second ejection operation is made smaller than an amount of the pigment ink per the unit area in the first ejection operation.
    Type: Application
    Filed: July 12, 2010
    Publication date: March 10, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Mai Kubota, Bunji Ishimoto, Akito Sato, Tomohiro Yuda, Naoki Sudo, Takahide Miyashita