Patents by Inventor Tatsuya Nakano
Tatsuya Nakano 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: 7950768Abstract: A method of calculating a correction value includes: forming a test pattern by ejecting a liquid by a liquid ejecting apparatus, which has a first nozzle row in which a plurality of nozzles ejecting the liquid to a medium are arranged in a predetermined direction and a second nozzle row in which a plurality of nozzles ejecting the liquid to the medium are arranged in the predetermined direction, the second nozzle row being disposed so that an end portion on one side thereof in the predetermined direction overlaps with an end portion on the other side of the first nozzle row in the predetermined direction, to an area of the medium corresponding to certain pixel data on the basis of the certain pixel data from first nozzles belonging to the end portion on the other side of the first nozzle row and second nozzles belonging to the end portion on the one side of the second nozzle row; acquiring a read-out gray scale value by allowing a scanner to read-out the test pattern; and calculating a correction value used tType: GrantFiled: May 12, 2009Date of Patent: May 31, 2011Assignee: Seiko Epson CorporationInventors: Takeshi Yoshida, Masahiko Yoshida, Michiaki Tokunaga, Tatsuya Nakano
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Patent number: 7948666Abstract: At the time of setting a correction value for a certain density (subject density), a higher side density that is higher than the certain density and a lower side density that is lower than the certain density to be referenced according to the measured value of a region printed at the certain density are arbitrarily specified, and a correction value for the certain density is set by using at least one of a measured value of the density of a region printed at the arbitrarily specified higher side density and a measured value of the density of a region printed at the arbitrarily specified lower side density.Type: GrantFiled: April 28, 2006Date of Patent: May 24, 2011Assignee: Seiko Epson CorporationInventors: Masahiko Yoshida, Keigo Yamasaki, Tatsuya Nakano
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Patent number: 7931347Abstract: The invention is a transport method that transports a medium by causing a transport roller to rotate based on a corrected target transport amount, after correcting the target transport amount that is targeted based on a correction value and includes: printing a first pattern on a medium, printing a second pattern after the medium has been transported by causing the transport roller to rotate by a rotation amount of less than one rotation from a rotation position of the transport roller at a time of printing the first pattern, printing a third pattern after the medium has been transported by causing the transport roller to rotate by a rotation amount of one rotation from a rotation position of the transport roller at a time of printing the first pattern, printing a fourth pattern after the medium has been transported by causing the transport roller to rotate by a rotation amount of one rotation from a rotation position of the transport roller at a time of printing the second pattern, calculating a first correcType: GrantFiled: June 30, 2010Date of Patent: April 26, 2011Assignee: Seiko Epson CorporationInventors: Masahiko Yoshida, Tatsuya Nakano, Hirokazu Nunokawa, Bunji Ishimoto, Toru Miyamoto, Yoichi Kakehashi
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Publication number: 20110092699Abstract: A process produces an amide or lactam by subjecting an oxime compound to rearrangement in a solvent in the presence of: at least one catalyst selected from the group consisting of an aromatic compound (A1) containing a leaving group bound to a carbon atom constituting the aromatic ring, the aromatic ring including, as a constitutive atom thereof, a heteroatom or including, as a constitutive atom thereof, a carbon atom bound to an electron-withdrawing group, and a compound (A2) containing a structure of Formula (1): -G-LA (1) wherein G represents P, N, S, B or Si atom; and LA represents a leaving group, wherein G is bound to one or more atoms or groups in addition to LA; and a co-catalyst including a halogen-containing organic acid, to give the corresponding amide or lactam, wherein, when the aromatic compound (A1) alone is used as the catalyst, the solvent is at least one solvent selected typically from hydrocarbon solvents.Type: ApplicationFiled: June 10, 2009Publication date: April 21, 2011Inventors: Takahiro Iwahama, Tatsuya Nakano
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Patent number: 7914100Abstract: A recording apparatus including: a head for performing recording on a medium, a transport mechanism that includes a roller on an upstream side of the head and transports the medium in the transport direction according to a target transport amount that is targeted, a sensor that is provided at a more upstream side than the upstream-side roller in order to detect a lower end of the medium transported in the transport direction, and a controller that corrects the target transport amount by correction values matched with a relative position of the head and the medium.Type: GrantFiled: December 5, 2008Date of Patent: March 29, 2011Assignee: Seiko Epson CorporationInventors: Yusuke Kashimoto, Tatsuya Nakano, Masahiko Yoshida
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Patent number: 7909433Abstract: A liquid ejecting apparatus including a head unit that has a plurality of heads along a first direction, in which a plurality of nozzles that eject a liquid onto a medium are lined up in the first direction, and that ejects the liquid while moving relative to the medium in a second direction, which intersects the first direction, the head unit having a width in the first direction that is greater than a width of a medium in the first direction, a movement mechanism that makes the head unit move relative to the medium a plurality of times alternately in the second direction and the first direction, and a control section that forms a raster line group by forming each raster line.Type: GrantFiled: September 18, 2008Date of Patent: March 22, 2011Assignee: Seiko Epson CorporationInventors: Masahiko Yoshida, Takeshi Yoshida, Michiaki Tokunaga, Tatsuya Nakano
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Patent number: 7862140Abstract: A method including performing correction of an ink ejection amount for a certain area based on a correction value for a first type row region, and performing correction of an ink ejection amount for another area. The certain area includes a plurality of the first type row regions adjacent to each other in a transport direction. The other area is located on the upstream side in the transport direction from the certain area, and includes a plurality of second type row regions and a plurality of the first type row regions in the transport direction. The second type row region is a region in which a dot row is formed in the movement direction by performing the movement-and-ejection operation another predetermined number of times that is more than the predetermined number of times. A ratio of the second type row regions increases as the distance from the certain area increases.Type: GrantFiled: August 23, 2007Date of Patent: January 4, 2011Assignee: Seiko Epson CorporationInventors: Masahiko Yoshida, Bunji Ishimoto, Toru Miyamoto, Tatsuya Nakano, Hirokazu Nunokawa, Yoichi Kakehashi
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Patent number: 7864984Abstract: A line position calculating method is a method for calculating a position, in a second direction, of a line along a first direction in an image, based on image data of the image constituted by a plurality of pixels arranged in a matrix form in the first direction and in the second direction, the method obtains pixel data of each of a plurality of pixels arranged in the first direction, calculates an extent of unevenness of each tone value indicating the pixel data of each of the plurality of pixels arranged in the first direction, sets a threshold value according to the extent of unevenness, sets a range based on the threshold value, detects a defective pixel in which the tone value indicating the pixel data is out of the range, calculates a representative value indicating a tone value of a pixel row, based on the pixel data of the pixels other than the defective pixel of the plurality of pixels constituting the pixel row, and calculates a position, in the second direction, of the line, based on the representType: GrantFiled: August 16, 2007Date of Patent: January 4, 2011Assignee: Seiko Epson CorporationInventors: Toru Miyamoto, Tatsuya Nakano, Masahiko Yoshida, Bunji Ishimoto, Hirokazu Nunokawa, Yoichi Kakehashi
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Patent number: 7850275Abstract: A printing method includes performing correction of an ink ejection amount for a certain area based on a correction value for a first type row region, and performing correction of an ink ejection amount for another area based on another correction value. The certain area includes a plurality of the first type row regions adjacent to each other in a transport direction of a medium. The other area is located on the downstream side in the transport direction from the certain area, and includes a plurality of second type row regions and a plurality of the first type row regions in the transport direction. The other correction value is obtained by increasing a degree of the correction based on the correction value for the first type row region as a distance from the certain area decreases.Type: GrantFiled: August 24, 2007Date of Patent: December 14, 2010Assignee: Seiko Epson CorporationInventors: Masahiko Yoshida, Tatsuya Nakano, Bunji Ishimoto, Toru Miyamoto, Hirokazu Nunokawa, Yoichi Kakehashi
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Publication number: 20100289842Abstract: A medium is carried to a predetermined position in a carrying direction. A first pattern is formed on the medium with nozzles on the carrying direction upstream side of a nozzle row constituted by a plurality of nozzles lined up at predetermined intervals. After forming the first pattern, the medium is carried in the carrying direction by a target carry amount that is shorter than the length in the carrying direction of the nozzle row. Along with forming on the medium a second pattern that forms a boundary with the first pattern with nozzles on the carrying direction downstream side of the nozzle row, a third pattern is formed on the medium with the nozzles on the carrying direction upstream side of the nozzle row.Type: ApplicationFiled: July 27, 2010Publication date: November 18, 2010Applicant: SEIKO EPSON CORPORATIONInventors: Tatsuya NAKANO, Masahiko Yoshida
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Patent number: 7832826Abstract: A printing method includes by printing a first area in a test pattern using a first print mode, determining a first correction value corresponding to the first print mode for each of the row regions, based on a density measurement value for each of row regions in the first area, by printing a second area in the test pattern using a second print mode for a plurality of cycles of periods that is determined by a combination of the row region and the nozzle, determining a second correction value corresponding to the second print mode for each of the row regions, based on a density measurement value for each of the row regions in the second area, and in a coexistent segment in which certain row regions and other row regions are mixed, correcting an ink ejection amount in each of the row regions using a combined correction value that is obtained as a composition of the first correction value and the second correction value.Type: GrantFiled: August 29, 2007Date of Patent: November 16, 2010Assignee: Seiko Epson CorporationInventors: Masahiko Yoshida, Tatsuya Nakano, Bunji Ishimoto, Hirokazu Nunokawa, Toru Miyamoto, Yoichi Kakehashi
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Publication number: 20100265293Abstract: The invention is a transport method that transports a medium by causing a transport roller to rotate based on a corrected target transport amount, after correcting the target transport amount that is targeted based on a correction value and includes: printing a first pattern on a medium, printing a second pattern after the medium has been transported by causing the transport roller to rotate by a rotation amount of less than one rotation from a rotation position of the transport roller at a time of printing the first pattern, printing a third pattern after the medium has been transported by causing the transport roller to rotate by a rotation amount of one rotation from a rotation position of the transport roller at a time of printing the first pattern, printing a fourth pattern after the medium has been transported by causing the transport roller to rotate by a rotation amount of one rotation from a rotation position of the transport roller at a time of printing the second pattern, calculating a first correcType: ApplicationFiled: June 30, 2010Publication date: October 21, 2010Applicant: Seiko Epson CorporationInventors: Masahiko YOSHIDA, Tatsuya Nakano, Hirokazu Nunokawa, Bunji Ishimoto, Toru Miyamoto, Yoichi Kakehashi
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Publication number: 20100253728Abstract: There is provided a method of calculating a correction value in a liquid ejecting apparatus in which a plurality of heads is arranged in a predetermined direction and each of the heads has a nozzle row in which nozzles ejecting a liquid on a medium are arranged in the predetermined direction. The method includes: forming a first and second pattern by a first and second operation; and calculating, on the basis of the first pattern, a first correction value and, on the basis of the first and second patterns, a second correction valve to line up a landed position of the liquid ejected in the first operation and the second operation.Type: ApplicationFiled: March 31, 2010Publication date: October 7, 2010Applicant: SEIKO EPSON CORPORATIONInventors: Takeshi Yoshida, Masahiko Yoshida, Michiaki Tokunaga, Tatsuya Nakano, Yuji Miyama
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Publication number: 20100245441Abstract: A fluid ejecting apparatus and a method for correcting pixel data are disclosed. The fluid ejecting apparatus includes a nozzle line having nozzles which eject fluid onto a medium and are lined up in a predetermined direction; a moving mechanism relatively moving the nozzle line and the medium in a direction intersecting the predetermined direction; and a control unit that ejects the fluid from the nozzle line while relatively moving the nozzle line and the medium in the intersecting direction by using the moving mechanism, based on pixel data of the predetermined number of gradations according to certain kinds of dots which can be formed by the fluid ejected from the nozzles, the control unit correcting the pixel data of the predetermined number of gradations in accordance with the correction value set for every image line data which is the plurality of pixel data lined up in a direction corresponding to the intersecting direction in the pixel data.Type: ApplicationFiled: March 25, 2010Publication date: September 30, 2010Applicant: SEIKO EPSON CORPORATIONInventors: Michiaki Tokunaga, Masahiko Yoshida, Takeshi Yoshida, Tatsuya Nakano
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Publication number: 20100245871Abstract: A method for correcting pixel data and a fluid ejecting apparatus and are disclosed.Type: ApplicationFiled: March 25, 2010Publication date: September 30, 2010Applicant: SEIKO EPSON CORPORATIONInventors: Michiaki TOKUNAGA, Masahiko YOSHIDA, Takeshi YOSHIDA, Tatsuya NAKANO
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Patent number: 7789478Abstract: A medium is carried to a predetermined position in a carrying direction. A first pattern is formed on the medium with nozzles on the carrying direction upstream side of a nozzle row constituted by a plurality of nozzles lined up at predetermined intervals. After forming the first pattern, the medium is carried in the carrying direction by a target carry amount that is shorter than the length in the carrying direction of the nozzle row. Along with forming on the medium a second pattern that forms a boundary with the first pattern with nozzles on the carrying direction downstream side of the nozzle row, a third pattern is formed on the medium with the nozzles on the carrying direction upstream side of the nozzle row.Type: GrantFiled: April 13, 2009Date of Patent: September 7, 2010Assignee: Seiko Epson CorporationInventors: Tatsuya Nakano, Masahiko Yoshida
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Publication number: 20100220140Abstract: A recording apparatus of this invention includes a head; a transport mechanism that transports a medium in a transport direction with respect to the head, according to a target transport amount to be targeted; a memory that stores a plurality of correction values associated with a relative position of the head and the medium; and a controller that controls the transport mechanism based on the target transport amount that has been corrected, after correcting the target transport amount based on correction values, which are in number according to a size of the target transport amount, and which include the correction value according to the relative position when transporting by the target transport amount.Type: ApplicationFiled: May 14, 2010Publication date: September 2, 2010Applicant: Seiko Epson CorporationInventors: Masahiko YOSHIDA, Tatsuya Nakano, Hirokazu Nunokawa, Bunji Ishimoto, Toru Miyamoto, Yoichi Kakehashi
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Patent number: 7787147Abstract: A printing method includes determining a first correction value corresponding to a first print mode, determining a second correction value corresponding to a second print mode, and correcting an ink ejection amount of each row region individually, using a combined correction value obtained by combining the first correction value and the second correction value. The first print mode is a print mode that is applied to a front end area, with respect to a transport direction, of a medium. Dot rows are formed extending in a nozzle movement direction that is perpendicular to the transport direction, on a plurality of row regions lined up in the transport direction. The dot rows are formed by repeating a movement ejection operation of ejecting ink onto the medium while moving nozzles in the movement direction, and a transport operation of transporting the medium in the transport direction. The first correction value is for correcting an ejection amount of the ink in each row region individually.Type: GrantFiled: August 29, 2007Date of Patent: August 31, 2010Assignee: Seiko Epson CorporationInventors: Masahiko Yoshida, Tatsuya Nakano, Bunji Ishimoto, Toru Miyamoto, Hirokazu Nunokawa, Yoichi Kakehashi
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Publication number: 20100201733Abstract: A printing method according to the present invention includes carrying a medium, and printing, using a nozzle for ejecting ink, a plurality of images each having a section to be detected for detecting an inclination of the image with respect to the carried medium.Type: ApplicationFiled: April 16, 2010Publication date: August 12, 2010Applicant: Seiko Epson CorporationInventors: Masahiko YOSHIDA, Keigo Yamasaki, Tatsuya Nakano
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Patent number: 7770996Abstract: The invention is a transport method that transports a medium by causing a transport roller to rotate based on a corrected target transport amount, after correcting the target transport amount that is targeted based on a correction value and includes: printing a first pattern on a medium, printing a second pattern after the medium has been transported by causing the transport roller to rotate by a rotation amount of less than one rotation from a rotation position of the transport roller at a time of printing the first pattern, printing a third pattern after the medium has been transported by causing the transport roller to rotate by a rotation amount of one rotation from a rotation position of the transport roller at a time of printing the first pattern, printing a fourth pattern after the medium has been transported by causing the transport roller to rotate by a rotation amount of one rotation from a rotation position of the transport roller at a time of printing the second pattern, calculating a first correcType: GrantFiled: June 20, 2007Date of Patent: August 10, 2010Assignee: Seiko Epson CorporationInventors: Masahiko Yoshida, Tatsuya Nakano, Hirokazu Nunokawa, Bunji Ishimoto, Toru Miyamoto, Yoichi Kakehashi