Patents by Inventor Yuko Katsumoto

Yuko Katsumoto 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: 11097566
    Abstract: An object of the present invention is to provide a thermal transfer recording sheet that provides an image that is excellent in light fastness and has a satisfactory imbalance. The present invention relates to a thermal transfer recording sheet including a substrate and dye layers (a yellow dye layer, a magenta dye layer, and a cyan dye layer), in which one or more kinds of the dye layers each contain one or more kinds of specific compounds. The present invention also relates to a thermal transfer recording sheet including a substrate, dye layers, and a protective layer for protecting the surface of an image, in which the protective layer contains one or more kinds of specific compounds.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: August 24, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yuko Katsumoto, Koromo Shirota, Tsuyoshi Santo, Taichi Shintou, Hajime Muta, Tomoyuki Noda
  • Patent number: 10647142
    Abstract: In a thermal transfer recording sheet including a base material and a colorant layer, the colorant layer includes a yellow dye layer containing a yellow dye, a magenta dye layer containing a magenta dye, and a cyan dye layer containing a cyan dye, and the cyan dye includes a compound represented by Formula (1a) or Formula (1b): where R1 to R7 are substituents, X? is an anion, and the compound of Formula (1b) has at least one anionic substituent.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: May 12, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Taichi Shintou, Masahiro Suenaga, Koromo Shirota, Yuko Katsumoto, Tsuyoshi Santo, Hajime Muta, Tomoyuki Noda
  • Patent number: 10501631
    Abstract: A thermal transfer recording sheet includes a base material and, on the base material, a yellow-dye layer containing a yellow dye, a magenta-dye layer containing a magenta dye, and a cyan-dye layer containing a cyan dye. The yellow dye and the cyan dye contain compounds having specific structures.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: December 10, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Taichi Shintou, Koromo Shirota, Yuko Katsumoto, Tsuyoshi Santo, Hajime Muta, Tomoyuki Noda
  • Publication number: 20190217648
    Abstract: An object of the present invention is to provide a thermal transfer recording sheet that provides an image that is excellent in light fastness and has a satisfactory imbalance. The present invention relates to a thermal transfer recording sheet including a substrate and dye layers (a yellow dye layer, a magenta dye layer, and a cyan dye layer), in which one or more kinds of the dye layers each contain one or more kinds of specific compounds. The present invention also relates to a thermal transfer recording sheet including a substrate, dye layers, and a protective layer for protecting the surface of an image, in which the protective layer contains one or more kinds of specific compounds.
    Type: Application
    Filed: March 25, 2019
    Publication date: July 18, 2019
    Inventors: Yuko Katsumoto, Koromo Shirota, Tsuyoshi Santo, Taichi Shintou, Hajime Muta, Tomoyuki Noda
  • Patent number: 10195886
    Abstract: A thermal transfer recording sheet set includes an image-receiving sheet that includes an image-receiving layer containing a compound represented by general formula (1) or (2) and an ink sheet that includes a yellow coloring material layer containing a particular dye and a cyan coloring material layer containing a particular dye.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: February 5, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tsuyoshi Santo, Yuko Katsumoto, Koromo Shirota, Taichi Shintou, Hajime Muta, Tomoyuki Noda
  • Patent number: 10179858
    Abstract: The present invention provides a compound having a high chroma and also excellent dispersibility. The compound described above is represented by the following formula (1).
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: January 15, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Taichi Shintou, Koromo Shirota, Yuko Katsumoto
  • Publication number: 20180273757
    Abstract: The present invention provides a compound having a high chroma and also excellent dispersibility. The compound described above is represented by the following formula (1).
    Type: Application
    Filed: August 12, 2016
    Publication date: September 27, 2018
    Inventors: Taichi Shintou, Koromo Shirota, Yuko Katsumoto
  • Publication number: 20180237640
    Abstract: A thermal transfer recording sheet includes a base material and, on the base material, a yellow-dye layer containing a yellow dye, a magenta-dye layer containing a magenta dye, and a cyan-dye layer containing a cyan dye. The yellow dye and the cyan dye contain compounds having specific structures.
    Type: Application
    Filed: February 14, 2018
    Publication date: August 23, 2018
    Inventors: Taichi Shintou, Koromo Shirota, Yuko Katsumoto, Tsuyoshi Santo, Hajime Muta, Tomoyuki Noda
  • Publication number: 20180215922
    Abstract: An object is to provide a compound having high color developability and excellent heat resistance, and a resist composition for a color filter and a color filter that contain the dye composition. Another object is to provide a dyed polyamide fiber product having excellent wet rubbing fastness.
    Type: Application
    Filed: January 11, 2018
    Publication date: August 2, 2018
    Inventors: Hajime Muta, Yuko Katsumoto, Koromo Shirota, Taichi Shintou, Tsuyoshi Santo
  • Publication number: 20180170085
    Abstract: In a thermal transfer recording sheet including a base material and a colorant layer, the colorant layer includes a yellow dye layer containing a yellow dye, a magenta dye layer containing a magenta dye, and a cyan dye layer containing a cyan dye, and the cyan dye includes a compound represented by Formula (Ia) or Formula (Ib): where R1 to R7 are substituents, X? is an anion, and the compound of Formula (Ib) has at least one anionic substituent.
    Type: Application
    Filed: December 15, 2017
    Publication date: June 21, 2018
    Inventors: Taichi Shintou, Masahiro Suenaga, Koromo Shirota, Yuko Katsumoto, Tsuyoshi Santo, Hajime Muta, Tomoyuki Noda
  • Publication number: 20180147875
    Abstract: A thermal transfer recording sheet set includes an image-receiving sheet that includes an image-receiving layer containing a compound represented by general formula (1) or (2) and an ink sheet that includes a yellow coloring material layer containing a particular dye and a cyan coloring material layer containing a particular dye.
    Type: Application
    Filed: November 21, 2017
    Publication date: May 31, 2018
    Inventors: Tsuyoshi Santo, Yuko Katsumoto, Koromo Shirota, Taichi Shintou, Hajime Muta, Tomoyuki Noda
  • Patent number: 9592695
    Abstract: An object of the present invention is to provide a thermal transfer recording sheet that enables images having a wide color gamut, a high chroma, and good lightfastness, in which the degree of catalytic fading is reduced, to be formed. The thermal transfer recording sheet includes a base material and a colorant layer on the base material. The colorant layer includes a yellow dye layer, a magenta dye layer, and a cyan dye layer. The dye layers each include, as a dye, a compound having a specific structure.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: March 14, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuko Katsumoto, Masao Nakano, Taichi Shintou
  • Patent number: 9580576
    Abstract: Provided is a pigment dispersion excellent in the dispersibility of C.I. Pigment yellow 185. The pigment dispersion includes C.I.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: February 28, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Shosei Mori, Takeshi Sekiguchi, Taichi Shintou, Yuko Katsumoto, Takayuki Ujifusa, Takeshi Miyazaki
  • Patent number: 9481192
    Abstract: An object of the present invention is to provide a thermal transfer recording sheet that enables high-chroma images to be formed, has a high color-developability that enables a wide color gamut to be achieved, and enables high-quality black images to be formed using process black. The thermal transfer recording sheet includes a base material, and a yellow dye layer including a yellow dye, a magenta dye layer including a magenta dye, and a cyan dye layer including a cyan dye that are disposed on the base material. The magenta dye, yellow dye, and cyan dye each contain specific compounds.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: November 1, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masao Nakano, Yuko Katsumoto, Taichi Shintou
  • Patent number: 9388313
    Abstract: The present invention provides a water-insoluble coloring compound having a high solvent solubility, showing increased brightness and saturation, and being useful for increasing the green gamut and also provides an ink containing the water-insoluble coloring compound. The present invention provides a thermal transfer recording sheet including a coloring material layer formed on a base material from the ink and also provides a color filter resist composition showing an increased green gamut due to the ink.
    Type: Grant
    Filed: January 16, 2013
    Date of Patent: July 12, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuko Katsumoto, Shosei Mori, Takeshi Sekiguchi, Taichi Shintou, Takayuki Ujifusa, Takeshi Miyazaki
  • Patent number: 9382426
    Abstract: The present invention provides a water-insoluble coloring compound having excellent light resistance, an ink containing the coloring compound, a thermal transfer recording sheet including a coloring material layer formed on a base material from the ink, and a color filter resist composition containing the ink.
    Type: Grant
    Filed: January 16, 2013
    Date of Patent: July 5, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takeshi Sekiguchi, Shosei Mori, Taichi Shintou, Yuko Katsumoto, Takayuki Ujifusa, Takeshi Miyazaki
  • Patent number: 9323168
    Abstract: A yellow toner is provided which is superior in dispersibility of C. I. pigment yellow 185, has a high color development property, and is superior in light resistance. The yellow toner has toner particles containing at least a binder resin, a wax, and a colorant, wherein the yellow toner contains C.I.
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: April 26, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Shosei Mori, Takeshi Sekiguchi, Taichi Shintou, Yuko Katsumoto, Takayuki Ujifusa, Takeshi Miyazaki
  • Publication number: 20150367665
    Abstract: An object of the present invention is to provide a thermal transfer recording sheet that enables high-chroma images to be formed, has a high color-developability that enables a wide color gamut to be achieved, and enables high-quality black images to be formed using process black. The thermal transfer recording sheet includes a base material, and a yellow dye layer including a yellow dye, a magenta dye layer including a magenta dye, and a cyan dye layer including a cyan dye that are disposed on the base material. The magenta dye, yellow dye, and cyan dye each contain specific compounds.
    Type: Application
    Filed: August 26, 2015
    Publication date: December 24, 2015
    Inventors: Masao Nakano, Yuko Katsumoto, Taichi Shintou
  • Publication number: 20150360495
    Abstract: An object of the present invention is to provide a thermal transfer recording sheet that enables images having a wide color gamut, a high chroma, and good lightfastness, in which the degree of catalytic fading is reduced, to be formed. The thermal transfer recording sheet includes a base material and a colorant layer on the base material. The colorant layer includes a yellow dye layer, a magenta dye layer, and a cyan dye layer. The dye layers each include, as a dye, a compound having a specific structure.
    Type: Application
    Filed: August 26, 2015
    Publication date: December 17, 2015
    Inventors: Yuko Katsumoto, Masao Nakano, Taichi Shintou
  • Patent number: 9170513
    Abstract: The present invention provides a yellow toner having high compatibility of a colorant with a binder resin, having good chroma, and being useful for broadening the green color gamut. The yellow toner contains the binder resin and the colorant, wherein the colorant contains a compound represented by the general formula (1).
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: October 27, 2015
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Shosei Mori, Takeshi Sekiguchi, Yuko Katsumoto, Taichi Shintou, Takayuki Ujifusa, Takeshi Miyazaki