Patents Assigned to Sakura Color Products Corporation
  • Patent number: 10401338
    Abstract: This invention provides a plasma treatment detection indicator that uses a fibrous base material or a synthetic resin base material comprising a coloring pigment as a base material and in which fine fiber pieces or coloring pigment is prevented from being generated in a powder form from the base material in plasma treatment. More specifically, this invention provides a plasma treatment detection indicator comprising a base material and at least a color-changing layer that changes color in a plasma treatment atmosphere, the color-changing layer being disposed above part or all of a surface of the base material, (1) the base material being a fibrous base material or a synthetic resin base material comprising a coloring pigment, and (2) a resin-based or inorganic transparent cover layer that covers all of the surface of the base material being disposed between the base material and the color-changing layer.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: September 3, 2019
    Assignee: SAKURA COLOR PRODUCTS CORPORATION
    Inventor: Marimo Mori
  • Patent number: 10400125
    Abstract: Provided is a plasma treatment detection indicator that enables the completion of plasma treatment to be confirmed from the color change of a color-changing layer by controlling the color change rate, regardless of whether the type of plasma is reduced-pressure plasma or atmospheric-pressure plasma, and regardless of the degree of plasma intensity; also provided is an ink composition for detecting plasma treatment for forming the color-changing layer. The ink composition for detecting plasma treatment comprises an organic dye and at least one member selected from the group consisting of a photopolymerization initiator, silica, and hydrophobic alumina.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: September 3, 2019
    Assignee: SAKURA COLOR PRODUCTS CORPORATION
    Inventors: Marimo Mori, Takeshi Sakumura, Yasuaki Hirata
  • Patent number: 10195301
    Abstract: A primary object of the present invention is to provide a hydrogen peroxide gas detection indicator which allows more certain visual recognition of color changing according to the concentration of hydrogen peroxide gas. The structure of this invention relates to an ink composition for detecting hydrogen peroxide gas containing (1) at least one of styrene acrylic resins and styrene-maleic acid resins and (2) a methine dye. According to this invention, a color-changing layer is formed using the ink composition for detecting hydrogen peroxide gas, allowing color changing according to the concentration of hydrogen peroxide gas to be visually recognized.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: February 5, 2019
    Assignee: SAKURA COLOR PRODUCTS CORPORATION
    Inventors: Norihiro Yamaguchi, Kyoko Ohwaki
  • Patent number: 10184058
    Abstract: An object of the present invention is to provide: a plasma treatment detection indicator comprising a color-changing layer that exhibits improved heat resistance so that the layer does not change color even when overheated at up to about 170° C. as a result of a plasma-generating gas not being supplied or being insufficient due to a defect in a plasma treatment device; and an ink composition for detecting plasma treatment, the composition being for forming the color-changing layer. The ink composition for detecting plasma treatment includes a colorant and a binder resin containing a phenol resin, and the plasma treatment detection indicator uses the ink composition.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: January 22, 2019
    Assignee: SAKURA COLOR PRODUCTS CORPORATION
    Inventor: Marimo Mori
  • Patent number: 10180413
    Abstract: The present invention provides an ink composition for forming a color-changing layer that changes color by plasma treatment, the ink composition exhibiting excellent heat resistance, with the gasification of the color-changing layer or the scattering of the fine debris of the color-changing layer caused by plasma treatment being suppressed to the extent that electronic device properties are not affected. The invention provides an ink composition for forming a color-changing layer that changes color by plasma treatment, the ink composition comprising metal oxide particles containing at least one element selected from the group consisting of Mo, W, Sn, V, Ce, Te, and Bi, and a binder resin.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: January 15, 2019
    Assignee: SAKURA COLOR PRODUCTS CORPORATION
    Inventors: Keita Hishikawa, Kazuhiro Uneyama
  • Patent number: 10181414
    Abstract: Provided is an indicator that can easily detect whether treatment with at least one member of plasma, ozone, ultraviolet rays, and radical-containing gas is uniformly performed on an entire substrate in an electronic device manufacturing apparatus; also provided is a method for designing and/or managing an electronic device manufacturing apparatus using the indicator. The indicator is used in an electronic device manufacturing apparatus, wherein (1) the indicator detects at least one member selected from the group consisting of plasma, ozone, ultraviolet rays, and radical-containing gas, (2) the indicator has a shape that is the same as that of a substrate used in the electronic device manufacturing apparatus, (3) the indicator contains a color-changing layer, and (4) the color-changing layer is formed by an ink composition whose color changes or disappears by reaction with at least one member selected from the group consisting of plasma, ozone, ultraviolet rays, and radical-containing gas.
    Type: Grant
    Filed: August 4, 2014
    Date of Patent: January 15, 2019
    Assignee: SAKURA COLOR PRODUCTS CORPORATION
    Inventors: Kazuhiro Uneyama, Seisaku Oshiro
  • Patent number: 10180392
    Abstract: The present invention provides a plasma treatment detection indicator including a color-changing layer that changes color by plasma treatment, exhibiting excellent heat resistance, with the gasification of the color-changing layer or the scattering of the fine debris of the color-changing layer caused by the plasma treatment being suppressed to such a degree as to not affect the electronic device properties. Specifically, the present invention provides a plasma treatment detection indicator including a color-changing layer that changes color by plasma treatment, the color-changing layer containing at least one metal element selected from the group consisting of Mo, W, Sn, V, Ce, Te, and Bi in the form of a simple substance and/or an inorganic compound containing at least one metal element selected from the group consisting of Mo, W, Sn, V, Ce, Te, and Bi.
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: January 15, 2019
    Assignee: SAKURA COLOR PRODUCTS CORPORATION
    Inventors: Yu Yamakawa, Kazuhiro Uneyama, Keita Hishikawa, Masayuki Nishi, Masahiro Shimizu
  • Patent number: 10153186
    Abstract: Provided is an indicator that can easily detect whether treatment with at least one member of plasma, ozone, ultraviolet rays, and radical-containing gas is uniformly performed on an entire substrate in an electronic device manufacturing apparatus; also provided is a method for designing and/or managing an electronic device manufacturing apparatus using the indicator. The indicator is used in an electronic device manufacturing apparatus, wherein (1) the indicator detects at least one member selected from the group consisting of plasma, ozone, ultraviolet rays, and radical-containing gas, (2) the indicator has a shape that is the same as that of a substrate used in the electronic device manufacturing apparatus, (3) the indicator contains a color-changing layer, and (4) the color-changing layer is formed by an ink composition whose color changes or disappears by reaction with at least one member selected from the group consisting of plasma, ozone, ultraviolet rays, and radical-containing gas.
    Type: Grant
    Filed: August 4, 2014
    Date of Patent: December 11, 2018
    Assignee: SAKURA COLOR PRODUCTS CORPORATION
    Inventors: Kazuhiro Uneyama, Seisaku Oshiro
  • Patent number: 10068784
    Abstract: Provided is an indicator that can easily detect whether treatment with at least one member of plasma, ozone, ultraviolet rays, and radical-containing gas is uniformly performed on an entire substrate in an electronic device manufacturing apparatus; also provided is a method for designing and/or managing an electronic device manufacturing apparatus using the indicator. The indicator is used in an electronic device manufacturing apparatus, wherein (1) the indicator detects at least one member selected from the group consisting of plasma, ozone, ultraviolet rays, and radical-containing gas, (2) the indicator has a shape that is the same as that of a substrate used in the electronic device manufacturing apparatus, (3) the indicator contains a color-changing layer, and (4) the color-changing layer is formed by an ink composition whose color changes or disappears by reaction with at least one member selected from the group consisting of plasma, ozone, ultraviolet rays, and radical-containing gas.
    Type: Grant
    Filed: August 4, 2014
    Date of Patent: September 4, 2018
    Assignee: SAKURA COLOR PRODUCTS CORPORATION
    Inventors: Kazuhiro Uneyama, Seisaku Oshiro
  • Publication number: 20170330777
    Abstract: The present invention provides a plasma treatment detection indicator including a color-changing layer that changes color by plasma treatment, exhibiting excellent heat resistance, with the gasification of the color-changing layer or the scattering of the fine debris of the color-changing layer caused by the plasma treatment being suppressed to the extent that electronic device properties are not affected. Specifically, the present invention provides a plasma treatment detection indicator comprising a color-changing layer that changes color by plasma treatment, the color-changing layer comprising metal oxide fine particles containing at least one element selected from the group consisting of Mo, W, Sn, V, Ce, Te, and Bi, the metal oxide fine particles having a mean particle size of 50 ?m or less.
    Type: Application
    Filed: November 24, 2015
    Publication date: November 16, 2017
    Applicant: SAKURA COLOR PRODUCTS CORPORATION
    Inventors: Keita Hishikawa, Kazuhiro Uneyama
  • Publication number: 20170261476
    Abstract: The present invention provides an ink composition for forming a color-changing layer that changes color by plasma treatment, the ink composition exhibiting excellent heat resistance, with the gasification of the color-changing layer or the scattering of the fine debris of the color-changing layer caused by plasma treatment being suppressed to the extent that electronic device properties are not affected. The invention provides an ink composition for forming a color-changing layer that changes color by plasma treatment, the ink composition comprising metal oxide particles containing at least one element selected from the group consisting of Mo, W, Sn, V, Ce, Te, and Bi, and a binder resin.
    Type: Application
    Filed: November 24, 2015
    Publication date: September 14, 2017
    Applicant: SAKURA COLOR PRODUCTS CORPORATION
    Inventors: Keita Hishikawa, Kazuhiro Uneyama
  • Patent number: 9683118
    Abstract: An oil-based pigment ink composition contains titanium dioxide pigment, mica pigment, dispersant, oil-soluble resin, and organic solvent, whose viscosity at a shear velocity of 76 (l/s) is 50 mPa-s or lower. The ink composition produces writing with sufficient covering property and legibility, does not form hard cakes, and can release ink in a stable manner from the tip of a writing tool.
    Type: Grant
    Filed: April 14, 2014
    Date of Patent: June 20, 2017
    Assignee: SAKURA COLOR PRODUCTS CORPORATION
    Inventors: Hidetoshi Fukuo, Masamitsu Takahashi, Ryotaro Kaba
  • Publication number: 20170153174
    Abstract: The present invention provides a plasma treatment detection indicator including a color-changing layer that changes color by plasma treatment, exhibiting excellent heat resistance, with the gasification of the color-changing layer or the scattering of the fine debris of the color-changing layer caused by the plasma treatment being suppressed to such a degree as to not affect the electronic device properties. Specifically, the present invention provides a plasma treatment detection indicator including a color-changing layer that changes color by plasma treatment, the color-changing layer containing at least one metal element selected from the group consisting of Mo, W, Sn, V, Ce, Te, and Bi in the form of a simple substance and/or an inorganic compound containing at least one metal element selected from the group consisting of Mo, W, Sn, V, Ce, Te, and Bi.
    Type: Application
    Filed: April 22, 2015
    Publication date: June 1, 2017
    Applicant: SAKURA COLOR PRODUCTS CORPORATION
    Inventors: Yu Yamakawa, Kazuhiro Uneyama, Keita Hishikawa, Masayuki Nishi, Masahiro Shimizu
  • Publication number: 20170101548
    Abstract: Provided is a plasma treatment detection indicator that enables the completion of plasma treatment to be confirmed from the color change of a color-changing layer by controlling the color change rate, regardless of whether the type of plasma is reduced-pressure plasma or atmospheric-pressure plasma, and regardless of the degree of plasma intensity; also provided is an ink composition for detecting plasma treatment for forming the color-changing layer. The ink composition for detecting plasma treatment comprises an organic dye and at least one member selected from the group consisting of a photopolymerization initiator, silica, and hydrophobic alumina.
    Type: Application
    Filed: August 25, 2015
    Publication date: April 13, 2017
    Applicant: SAKURA COLOR PRODUCTS CORPORATION
    Inventors: Marimo Mori, Takeshi Sakumura, Yasuaki Hirata
  • Publication number: 20170044389
    Abstract: An object of the present invention is to provide: a plasma treatment detection indicator comprising a color-changing layer that exhibits improved heat resistance so that the layer does not change color even when overheated at up to about 170° C. as a result of a plasma-generating gas not being supplied or being insufficient due to a defect in a plasma treatment device; and an ink composition for detecting plasma treatment, the composition being for forming the color-changing layer. The ink composition for detecting plasma treatment includes a colorant and a binder resin containing a phenol resin, and the plasma treatment detection indicator uses the ink composition.
    Type: Application
    Filed: April 15, 2015
    Publication date: February 16, 2017
    Applicant: SAKURA COLOR PRODUCTS CORPORATION
    Inventor: Marimo Mori
  • Patent number: 9513526
    Abstract: The present invention provides uniformly electrified electret fine particles having excellent electrophoretic properties. Specifically, the present invention provides a core-shell electret fine particle comprising a core part and a shell part, the core part containing a material that has an ability to disperse a pigment therein, the shell part containing an electret resin, and the electret resin being a fluorine-containing resin and being electretized by electron ray irradiation, radial ray irradiation, or corona discharge treatment.
    Type: Grant
    Filed: May 2, 2012
    Date of Patent: December 6, 2016
    Assignee: SAKURA COLOR PRODUCTS CORPORATION
    Inventors: Hiroshi Inoue, Tomochika Yoshitsugi, Ryuichi Kiyoe
  • Publication number: 20160349222
    Abstract: This invention provides a plasma treatment detection indicator that uses a fibrous base material or a synthetic resin base material comprising a coloring pigment as a base material and in which fine fiber pieces or coloring pigment is prevented from being generated in a powder form from the base material in plasma treatment. More specifically, this invention provides a plasma treatment detection indicator comprising a base material and at least a color-changing layer that changes color in a plasma treatment atmosphere, the color-changing layer being disposed above part or all of a surface of the base material, (1) the base material being a fibrous base material or a synthetic resin base material comprising a coloring pigment, and (2) a resin-based or inorganic transparent cover layer that covers all of the surface of the base material being disposed between the base material and the color-changing layer.
    Type: Application
    Filed: February 12, 2016
    Publication date: December 1, 2016
    Applicant: SAKURA COLOR PRODUCTS CORPORATION
    Inventor: Marimo MORI
  • Patent number: 9458336
    Abstract: A water-based ink composition for glass and ceramic surfaces contains an acrylic silicone resin emulsion, pigment, dispersant, and water-based solvent. The water-based ink composition may further contain a thixotropic agent and/or resin beads. The ink composition allows writing made with it to sufficiently demonstrate excellent water resistance, hot water resistance, and scratch resistance even on glass and ceramic surfaces, and to remain sufficiently legible even after the glass products or ceramics are cleaned repeatedly.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: October 4, 2016
    Assignee: SAKURA COLOR PRODUCTS CORPORATION
    Inventor: Mari Murakami
  • Publication number: 20160141192
    Abstract: Provided is an indicator that can easily detect whether treatment with at least one member of plasma, ozone, ultraviolet rays, and radical-containing gas is uniformly performed on an entire substrate in an electronic device manufacturing apparatus; also provided is a method for designing and/or managing an electronic device manufacturing apparatus using the indicator. The indicator is used in an electronic device manufacturing apparatus, wherein (1) the indicator detects at least one member selected from the group consisting of plasma, ozone, ultraviolet rays, and radical-containing gas, (2) the indicator has a shape that is the same as that of a substrate used in the electronic device manufacturing apparatus, (3) the indicator contains a color-changing layer, and (4) the color-changing layer is formed by an ink composition whose color changes or disappears by reaction with at least one member selected from the group consisting of plasma, ozone, ultraviolet rays, and radical-containing gas.
    Type: Application
    Filed: August 4, 2014
    Publication date: May 19, 2016
    Applicant: SAKURA COLOR PRODUCTS CORPORATION
    Inventors: Kazuhiro Uneyama, Seisaku Oshiro
  • Patent number: D758490
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: June 7, 2016
    Assignee: Sakura Color Products Corporation
    Inventors: Fumie Shibata, Shohei Tsuchida