Patents by Inventor Kaori TOMINAGA

Kaori TOMINAGA 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: 10394174
    Abstract: An image forming apparatus includes a determination unit and a continuous tone processing unit. The determination unit determines an end of a continuous tone image part in which a density changes continuously, the continuous tone image part being included in image information. The continuous tone processing unit performs, in a case where a number of levels of density of a print image in the image forming apparatus is larger than a number of levels of density of the image information, continuous tone processing for causing a density of a pixel group in which adjacent pixels have a same density to be changed continuously when increasing the number of levels of the density in an end portion of the continuous tone image part.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: August 27, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Shigeru Arai, Kaori Tominaga, Taro Yokose
  • Patent number: 10021274
    Abstract: A color processing apparatus includes a processor configured to implement first, second, and third acquiring units. The first acquiring unit acquires first color data indicating association among first-space color in a first space, second-space color obtained by reading measurement images having different first-space colors, and third-space color obtained by converting the second-space color through a predetermined transformation model. The second acquiring unit acquires second color data indicating association between the first-space color and the third-space color obtained by performing color measurement on some of the specific-color measurement images containing a specific color in the first space and included in the measurement images. The third acquiring unit acquires third color data indicating association between the first-space color and the third-space color obtained by converting the first-space color through a transformation equation obtained from the first and second color data.
    Type: Grant
    Filed: July 18, 2016
    Date of Patent: July 10, 2018
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Yosuke Tashiro, Kaori Tominaga, Shinsuke Sugi
  • Patent number: 9986106
    Abstract: A color patch generation apparatus includes a printing unit that prints color patches for first color space acquisition in a certain region of a plurality of sheets of paper by a certain number of patches and in a certain patch size, and prints color patches for second color space acquisition in a region different from the certain region of at least one of the plurality of sheets of paper by a certain number of patches and in a patch size smaller than the certain patch size.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: May 29, 2018
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Kaori Tominaga, Shinsuke Sugi, Yousuke Tashiro
  • Publication number: 20180139356
    Abstract: A color processing apparatus includes first, second, and third acquiring units. The first acquiring unit acquires first color data indicating association among first-space color in a first space, second-space color obtained using a reading unit reading measurement images having different first-space colors, and third-space color obtained by converting the second-space color through a predetermined transformation model. The second acquiring unit acquires second color data indicating association between the first-space color and the third-space color obtained using a measuring unit performing color measurement on some of the specific-color measurement images containing a specific color in the first space and included in the measurement images. The third acquiring unit acquires third color data indicating association between the first-space color and the third-space color obtained by converting the first-space color through a transformation equation obtained from the first and second color data.
    Type: Application
    Filed: July 18, 2016
    Publication date: May 17, 2018
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Yosuke TASHIRO, Kaori TOMINAGA, Shinsuke SUGI
  • Publication number: 20180059600
    Abstract: An image forming apparatus includes a determination unit and a continuous tone processing unit. The determination unit determines an end of a continuous tone image part in which a density changes continuously, the continuous tone image part being included in image information. The continuous tone processing unit performs, in a case where a number of levels of density of a print image in the image forming apparatus is larger than a number of levels of density of the image information, continuous tone processing for causing a density of a pixel group in which adjacent pixels have a same density to be changed continuously when increasing the number of levels of the density in an end portion of the continuous tone image part.
    Type: Application
    Filed: May 12, 2017
    Publication date: March 1, 2018
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Shigeru ARAI, Kaori TOMINAGA, Taro YOKOSE
  • Publication number: 20170251127
    Abstract: A color processing apparatus includes first, second, and third acquiring units. The first acquiring unit acquires first color data indicating association among first-space color in a first space, second-space color obtained using a reading unit reading measurement images having different first-space colors, and third-space color obtained by converting the second-space color through a predetermined transformation model. The second acquiring unit acquires second color data indicating association between the first-space color and the third-space color obtained using a measuring unit performing color measurement on some of the specific-color measurement images containing a specific color in the first space and included in the measurement images. The third acquiring unit acquires third color data indicating association between the first-space color and the third-space color obtained by converting the first-space color through a transformation equation obtained from the first and second color data.
    Type: Application
    Filed: July 18, 2016
    Publication date: August 31, 2017
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Yosuke TASHIRO, Kaori TOMINAGA, Shinsuke SUGI
  • Publication number: 20170085726
    Abstract: A color patch generation apparatus includes a printing unit that prints color patches for first color space acquisition in a certain region of a plurality of sheets of paper by a certain number of patches and in a certain patch size, and prints color patches for second color space acquisition in a region different from the certain region of at least one of the plurality of sheets of paper by a certain number of patches and in a patch size smaller than the certain patch size.
    Type: Application
    Filed: January 26, 2016
    Publication date: March 23, 2017
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Kaori TOMINAGA, Shinsuke SUGI, Yousuke TASHIRO
  • Patent number: 9467578
    Abstract: A correcting apparatus includes a first acquiring unit that acquires a target characteristic expressing a correspondence relationship between a gradation value and a target density of an image to be output from an output apparatus in accordance with the gradation value; a second acquiring unit that acquires an output characteristic expressing a correspondence relationship between a gradation value and a measured density of the image output from the output apparatus in accordance with the gradation value; an updating unit that updates the target characteristic by correcting the target density corresponding to a high density region including a maximum target density value when a difference between a maximum measured density value and the maximum target density value is larger than a predetermined value; and a correcting unit that corrects the gradation value so as to approximate the output characteristic to the updated target characteristic.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: October 11, 2016
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Shinya Takaishi, Kazuyuki Takahashi, Yosuke Tashiro, Kaori Tominaga
  • Publication number: 20160246233
    Abstract: A correcting apparatus includes a first acquiring unit that acquires a target characteristic expressing a correspondence relationship between a gradation value and a target density of an image to be output from an output apparatus in accordance with the gradation value; a second acquiring unit that acquires an output characteristic expressing a correspondence relationship between a gradation value and a measured density of the image output from the output apparatus in accordance with the gradation value; an updating unit that updates the target characteristic by correcting the target density corresponding to a high density region including a maximum target density value when a difference between a maximum measured density value and the maximum target density value is larger than a predetermined value; and a correcting unit that corrects the gradation value so as to approximate the output characteristic to the updated target characteristic.
    Type: Application
    Filed: June 29, 2015
    Publication date: August 25, 2016
    Inventors: Shinya TAKAISHI, Kazuyuki TAKAHASHI, Yosuke TASHIRO, Kaori TOMINAGA