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).
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Patent number: 8684485Abstract: 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: GrantFiled: April 1, 2011Date of Patent: April 1, 2014Assignee: Seiko Epson CorporationInventors: Akito Sato, Bunji Ishimoto, Takahide Miyashita, Katsuhiko Sugiyama, Yasuhiro Takeuchi
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Patent number: 8465117Abstract: 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: GrantFiled: January 19, 2011Date of Patent: June 18, 2013Assignee: Seiko Epson CorporationInventors: Akito Sato, Tomohiro Yuda, Takahide Miyashita, Naoki Sudo, Mai Kubota, Bunji Ishimoto
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Patent number: 8403442Abstract: 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: GrantFiled: April 1, 2011Date of Patent: March 26, 2013Assignee: Seiko Epson CorporationInventors: Takahide Miyashita, Bunji Ishimoto, Tatsuo Furuta, Akito Sato
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Patent number: 8313158Abstract: 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: GrantFiled: July 12, 2010Date of Patent: November 20, 2012Assignee: Seiko Epson CorporationInventors: Mai Kubota, Tomohiro Yuda, Takahide Miyashita, Naoki Sudo, Akito Sato, Bunji Ishimoto
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Patent number: 8303063Abstract: 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: GrantFiled: July 12, 2010Date of Patent: November 6, 2012Assignee: Seiko Epson CorporationInventors: Mai Kubota, Bunji Ishimoto, Akito Sato, Tomohiro Yuda, Naoki Sudo, Takahide Miyashita
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Publication number: 20110261099Abstract: 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: ApplicationFiled: April 1, 2011Publication date: October 27, 2011Applicant: SEIKO EPSON CORPORATIONInventors: Takahide MIYASHITA, Bunji ISHIMOTO, Tatsuo FURUTA, Akito SATO
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Publication number: 20110261100Abstract: 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: ApplicationFiled: April 1, 2011Publication date: October 27, 2011Applicant: SEIKO EPSON CORPORATIONInventors: Takahide MIYASHITA, Bunji ISHIMOTO, Tatsuo FURUTA, Akito SATO
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Publication number: 20110242177Abstract: 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: ApplicationFiled: April 1, 2011Publication date: October 6, 2011Applicant: SEIKO EPSON CORPORATIONInventors: Akito SATO, Bunji ISHIMOTO, Takahide MIYASHITA, Katsuhiko SUGIYAMA, Yasuhiro TAKEUCHI
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Publication number: 20110175958Abstract: 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: ApplicationFiled: January 19, 2011Publication date: July 21, 2011Applicant: SEIKO EPSON CORPORATIONInventors: Akito Sato, Tomohiro Yuda, Takahide Miyashita, Naoki Sudo, Mai Kubota, Bunji Ishimoto
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Publication number: 20110085000Abstract: 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: ApplicationFiled: October 5, 2010Publication date: April 14, 2011Applicant: SEIKO EPSON CORPORATIONInventors: Naoki Sudo, Mai Kubota, Akito Sato, Tomohiro Yuda, Takahide Miyashita, Bunji Ishimoto
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Publication number: 20110063347Abstract: 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: ApplicationFiled: July 12, 2010Publication date: March 17, 2011Applicant: SEIKO EPSON CORPORATIONInventors: Mai Kubota, Tomohiro Yuda, Takahide Miyashita, Naoki Sudo, Akito Sato, Bunji Ishimoto
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Publication number: 20110057972Abstract: 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: ApplicationFiled: July 12, 2010Publication date: March 10, 2011Applicant: SEIKO EPSON CORPORATIONInventors: Mai Kubota, Bunji Ishimoto, Akito Sato, Tomohiro Yuda, Naoki Sudo, Takahide Miyashita