Patents by Inventor Tsuneo Kasai

Tsuneo Kasai 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: 10616442
    Abstract: An image reading apparatus includes a first sensor that reads a first area of an image, a second sensor that reads a second area, and a processing circuit that generates a merge image by performing a merge process on first image data acquired by reading by the first sensor and second image data acquired by reading by the second sensor. The processing circuit calculates a correction value having a tendency of approaching zero as being away from an overlap area between the first area and the second area based on a reading result acquired by reading the overlap area by the first sensor and a reading result acquired by reading by the second sensor, and generates the merge image by performing an offset process using the correction value.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: April 7, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Masaaki Takizawa, Tsuneo Kasai
  • Publication number: 20190342463
    Abstract: A controller 60 of an image reading device 1 acquires a scanned image by reading a document. An image processor 30 generates an output image by applying to the acquired scanned image different image processes based on whether or not specific pixels, which are pixels with a pixel value greater than a white reference value, are contained in the scanned image.
    Type: Application
    Filed: April 29, 2019
    Publication date: November 7, 2019
    Inventors: Tsuneo KASAI, Makoto KOBAYASHI
  • Publication number: 20190342462
    Abstract: A controller 60 of an image reading device acquires a scanned image by reading a document, and identifies in the scanned image a fluorescent color area containing specific pixels, which are pixels having a pixel value greater than the white reference value. An image processor 40 generates output information including an output image based on the acquired scanned image, and information identifying a fluorescent color area.
    Type: Application
    Filed: April 29, 2019
    Publication date: November 7, 2019
    Inventor: Tsuneo KASAI
  • Publication number: 20190281185
    Abstract: An image reading apparatus includes a first sensor that reads a first area of an image, a second sensor that reads a second area, and a processing circuit that generates a merge image by performing a merge process on first image data acquired by reading by the first sensor and second image data acquired by reading by the second sensor. The processing circuit calculates a correction value having a tendency of approaching zero as being away from an overlap area between the first area and the second area based on a reading result acquired by reading the overlap area by the first sensor and a reading result acquired by reading by the second sensor, and generates the merge image by performing an offset process using the correction value.
    Type: Application
    Filed: March 6, 2019
    Publication date: September 12, 2019
    Inventors: Masaaki TAKIZAWA, Tsuneo KASAI
  • Patent number: 9855778
    Abstract: A method for setting a voltage applied to a head in an ink jet printer including the head that discharges ink according to an applied voltage includes a step of forming a test pattern on a medium by the ink discharged from the head, a step of measuring a film thickness of the test pattern, and a step of setting a voltage to be applied to the head based on the measured film thickness.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: January 2, 2018
    Assignee: Seiko Epson Corporation
    Inventors: Yasuhiro Takeuchi, Toru Takahashi, Tsuneo Kasai, Akira Akazawa
  • Patent number: 9665806
    Abstract: A printing apparatus of the invention includes a medium information acquisition section that acquires medium information that can specify a type of a print medium, a printing section that discharges print ink to the print medium, a coating section that coats the print medium with precoat liquid before the printing section performs printing, and a coating control section that controls the coating section. The coating control section variably changes an amount of coating of the precoat liquid per unit area according to the acquired medium information.
    Type: Grant
    Filed: April 11, 2016
    Date of Patent: May 30, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Akira Akazawa, Toru Takahashi, Tsuneo Kasai, Yasuhiro Takeuchi
  • Publication number: 20160307078
    Abstract: A printing apparatus of the invention includes a medium information acquisition section that acquires medium information that can specify a type of a print medium, a printing section that discharges print ink to the print medium, a coating section that coats the print medium with precoat liquid before the printing section performs printing, and a coating control section that controls the coating section. The coating control section variably changes an amount of coating of the precoat liquid per unit area according to the acquired medium information.
    Type: Application
    Filed: April 11, 2016
    Publication date: October 20, 2016
    Inventors: Akira AKAZAWA, Toru TAKAHASHI, Tsuneo KASAI, Yasuhiro TAKEUCHI
  • Publication number: 20160200125
    Abstract: A method for setting a voltage applied to a head in an ink jet printer including the head that discharges ink according to an applied voltage includes a step of forming a test pattern on a medium by the ink discharged from the head, a step of measuring a film thickness of the test pattern, and a step of setting a voltage to be applied to the head based on the measured film thickness.
    Type: Application
    Filed: December 16, 2015
    Publication date: July 14, 2016
    Inventors: Yasuhiro TAKEUCHI, Toru TAKAHASHI, Tsuneo KASAI, Akira AKAZAWA
  • Patent number: 9162474
    Abstract: A method for calculating a compensation value for use in a correction of a liquid landing position in a liquid ejection device provided with a first head for ejecting a first colored liquid and a second head for ejecting a transparent liquid includes, when forming a test pattern on a medium, forming the test pattern by feeding the first colored liquid to the second head and causing the second head to eject the first colored liquid, and obtaining a compensation value for a correction of a landing position of a liquid ejected by the second head on the basis of the test pattern formed on the medium.
    Type: Grant
    Filed: March 21, 2014
    Date of Patent: October 20, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Takamitsu Kondo, Toru Takahashi, Tsuneo Kasai, Kazuyoshi Tanase
  • Patent number: 8899710
    Abstract: A liquid discharge apparatus which causes a liquid to be discharged through a first nozzle by applying a driving signal to a first driving element, and causes a liquid to be discharged through a second nozzle by applying the driving signal to a second driving element, and which, with respect to the first nozzle, determines on the basis of an image formed by causing the liquid to be discharged through the first nozzle whether or not the first nozzle causes a liquid discharge failure, and, with respect to the second nozzle, determines on the basis of a detection signal which is obtained by applying the driving signal to the second driving element whether or not the second nozzle corresponding to the second driving element causes a liquid discharge failure.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: December 2, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Osamu Shinkawa, Kenji Otokita, Masahiko Yoshida, Tsuneo Kasai, Toshiyuki Suzuki
  • Patent number: 8888219
    Abstract: There is provided a method of acquiring a correction value of a liquid discharging apparatus that includes a first nozzle row, a second nozzle row, a third nozzle row, and a fourth nozzle row, the method includes: acquiring the amount of deviation (heterogeneous row error) of a dot formed by the third nozzle row in the predetermined direction, acquiring the amount of deviation (overlapping area error) between the dot formed by the third nozzle row and a dot formed by the fourth nozzle row in the predetermined direction, and acquiring a correction value which causes discharge data assigned to the fourth nozzle row to shift in the predetermined direction based on the heterogeneous row error and the overlapping area error.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: November 18, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Kazuyoshi Tanase, Tsuneo Kasai, Toru Takahashi, Masahiro Fukazawa
  • Publication number: 20140292870
    Abstract: A method for calculating a compensation value for use in a correction of a liquid landing position in a liquid ejection device provided with a first head for ejecting a first colored liquid and a second head for ejecting a transparent liquid includes, when forming a test pattern on a medium, forming the test pattern by feeding the first colored liquid to the second head and causing the second head to eject the first colored liquid, and obtaining a compensation value for a correction of a landing position of a liquid ejected by the second head on the basis of the test pattern formed on the medium.
    Type: Application
    Filed: March 21, 2014
    Publication date: October 2, 2014
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takamitsu KONDO, Toru TAKAHASHI, Tsuneo KASAI, Kazuyoshi TANASE
  • Publication number: 20140292863
    Abstract: There is provided a method of acquiring a correction value of a liquid discharging apparatus that includes a first nozzle row, a second nozzle row, a third nozzle row, and a fourth nozzle row, the method includes: acquiring the amount of deviation (heterogeneous row error) of a dot formed by the third nozzle row in the predetermined direction, acquiring the amount of deviation (overlapping area error) between the dot formed by the third nozzle row and a dot formed by the fourth nozzle row in the predetermined direction, and acquiring a correction value which causes discharge data assigned to the fourth nozzle row to shift in the predetermined direction based on the heterogeneous row error and the overlapping area error.
    Type: Application
    Filed: March 28, 2014
    Publication date: October 2, 2014
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Kazuyoshi TANASE, Tsuneo KASAI, Toru TAKAHASHI, Masahiro FUKAZAWA
  • Publication number: 20130257945
    Abstract: A liquid discharge apparatus which causes a liquid to be discharged through a first nozzle by applying a driving signal to a first driving element, and causes a liquid to be discharged through a second nozzle by applying the driving signal to a second driving element, and which, with respect to the first nozzle, determines on the basis of an image formed by causing the liquid to be discharged through the first nozzle whether or not the first nozzle causes a liquid discharge failure, and, with respect to the second nozzle, determines on the basis of a detection signal which is obtained by applying the driving signal to the second driving element whether or not the second nozzle corresponding to the second driving element causes a liquid discharge failure.
    Type: Application
    Filed: March 27, 2013
    Publication date: October 3, 2013
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Osamu Shinkawa, Kenji Otokita, Masahiko Yoshida, Tsuneo Kasai, Toshiyuki Suzuki
  • Patent number: 8322813
    Abstract: A discharge defect detecting device including a sensor that reads image, which has been formed on a medium by moving nozzles relative to the medium in a relative movement direction and discharging a fluid, at a reading resolution lower than the resolution of an image data in the relative movement direction, based on the image data; a standard data forming unit that forms a standard data having the same resolution as the reading resolution in the relative movement direction, based on the image data; and a detecting unit that compares a plurality of the reading data pixels on the same row in the relative movement direction in the data read by the sensor with a plurality of standard data pixels each corresponding to the plurality of the reading data pixels in the standard data, to detect the discharge defects of the nozzles.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: December 4, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Tsuneo Kasai, Hidekuni Moriya, Kenji Fukasawa
  • Publication number: 20120300263
    Abstract: A printing apparatus includes a printing unit which prints a plurality of test regions under a plurality of different print conditions by a printing head, a loading unit which applies a physical load to each of the test regions, a reading unit which reads an image on each of the test regions to which the load has been applied, and a determining unit which determines a print condition suitable for printing among the plurality of different print conditions based on the read image on each of the test regions.
    Type: Application
    Filed: May 25, 2012
    Publication date: November 29, 2012
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Tsuneo Kasai
  • Publication number: 20120293817
    Abstract: A failing nozzle detecting apparatus includes a reference image generating unit that generates plural pieces of reference image data with pixel positions along a transporting direction respectively shifted by different offsets based on image data, and a scanning unit that scans an image on the print medium relatively transported by the transporting unit to generate scanned image data. The failing nozzle detecting apparatus selects reference image data to be used in comparison with the scanned image data from the plural pieces of reference image data. The failing nozzle detecting apparatus detects a failing nozzle from the plurality of nozzles based on the comparison of the scanned image data with the selected reference image data.
    Type: Application
    Filed: May 16, 2012
    Publication date: November 22, 2012
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Tsuneo Kasai
  • Patent number: 8243328
    Abstract: A printing method includes obtaining scene information concerning image data from supplemental data that is appended to the image data; classifying a scene of an image represented by the image data, based on the image data; comparing the classified scene with a scene indicated by the scene information; and printing a printout that is used to urge a user to make a continuation when a mismatch between the classified scene and the scene indicated by the scene information exists.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: August 14, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Tsuneo Kasai, Kaori Matsumoto, Hirokazu Kasahara, Kenji Fukasawa, Naoki Kuwata
  • Publication number: 20120194588
    Abstract: Inspection patterns of each ink are printed on a transparent medium, by the use of a print head having a plurality of nozzle groups which discharges multiple types of ink, respectively. The inspection patterns printed on the transparent medium are read by the sensor. When reading the inspection patterns, the background color is switched, by the use of a background color switching section which faces the sensor with the inspection patterns interposed therebetween and in which a background color is switched. An occurrence of a defective nozzle is determined based on a reading result of the sensor.
    Type: Application
    Filed: January 27, 2012
    Publication date: August 2, 2012
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Tsuneo Kasai
  • Patent number: 8036998
    Abstract: A category classification method includes: calculating function values corresponding to a relationship between a classification target and support vectors that contribute to a classification boundary, calculating an addition value in which the function value for each support vector has been added, and classifying that the classification target does not pertain to a specific category in case that the addition value is smaller than a threshold, wherein calculation of the addition value is carried out by adding function values having positive values, then adding function values having negative values, and the classification target is classified as not pertaining to the specific category, without adding the remaining function values, in case that the addition value has become smaller than the threshold.
    Type: Grant
    Filed: August 12, 2008
    Date of Patent: October 11, 2011
    Assignee: Seiko Epson Corporation
    Inventor: Tsuneo Kasai