Patents by Inventor Satomi HARA

Satomi HARA 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: 9841693
    Abstract: A brilliant toner includes release agent domains meeting conditions (1) a length of the release agent domain in a longitudinal axis direction is 300 nm to 1,500 nm, (2) a ratio between the length in the longitudinal axis direction and in a short axis direction of the release agent domain is 3.0 to 15.0, (3) an angle between (a) a tangent line passing through a contact point of (a1) a circumference of a circle that is centered at a centroid of the release agent domain and is inscribed in an outer edge of the toner particle and (a2) the outer edge and (b) a line passing through the centroid and extending in the longitudinal axis direction is 0° to 45°, and (4) a ratio of a distance between the centroid and the contact point to an equivalent circle diameter of the toner particle is 0.03 to 0.25.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: December 12, 2017
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Atsushi Sugawara, Sakiko Hirai, Masaru Takahashi, Satomi Hara
  • Publication number: 20170285518
    Abstract: An electrostatic charge image developing toner set includes a brilliant toner including toner particles that include a brilliant pigment and a first binder resin, a black toner including toner particles that include a second binder resin, and a color toner except a black toner, including toner particles that include a third binder resin, wherein the brilliant toner, the black toner and the color toner satisfy Expression (1): Dielectric loss factor of the brilliant Toner>Dielectric loss factor of the black toner>Dielectric loss factor of the color toner and Expression (2): 25×10?3?(Dielectric loss factor of the brilliant toner)?(Dielectric loss factor of the color toner)?95×10?3.
    Type: Application
    Filed: July 28, 2016
    Publication date: October 5, 2017
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Satomi HARA, Masaru TAKAHASHI, Atsushi SUGAWARA, Sakiko HIRAI
  • Publication number: 20170269499
    Abstract: An image forming method includes developing an electrostatic charge image on the surface of an image holding member by a developer including toner particles which contain a binder resin, a flake shape brilliant pigment, and a layered inorganic material, transferring the developed toner image onto a surface of a recording medium, and fixing the toner image, which is a brilliant image, by passing the recording medium through a contact region between a fixing member and a pressing member pressed to the fixing member, the brilliant image satisfying (1) at a depth of 200 nm, A<10, 10?B?50, and 20?C?70 and (2) at a depth of 1,000 nm, 10?A?40, 20?B?60, and 20?C?50, wherein A, B and C are element amounts (atomic %) of aluminium, silicon, and carbon, respectively.
    Type: Application
    Filed: August 18, 2016
    Publication date: September 21, 2017
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Yuka ISHIHARA, Satomi HARA, Masaru TAKAHASHI, Masahiro TAKAYAMA
  • Publication number: 20170255117
    Abstract: A brilliant toner includes toner particles that contain a binder resin and a brilliant pigment which has a flake shape, wherein an average thickness of the brilliant pigment is greater than 0.5 ?m to 1.5 ?m.
    Type: Application
    Filed: July 19, 2016
    Publication date: September 7, 2017
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Sakiko HIRAI, Satomi HARA, Masaru TAKAHASHI, Atsushi SUGAWARA
  • Publication number: 20170255118
    Abstract: A brilliant toner includes toner particles that contain a binder resin and a brilliant pigment, wherein a water surface diffusion area, which is defined by JIS K5906:2009, of the brilliant pigment is from 5 m2/g to 20 m2/g and an average longitudinal length of the brilliant pigment is from 0.5 ?m to 10 ?m.
    Type: Application
    Filed: July 21, 2016
    Publication date: September 7, 2017
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Masaru TAKAHASHI, Satomi HARA, Sakiko HIRAI, Atsushi SUGAWARA
  • Publication number: 20170227873
    Abstract: A brilliant toner includes release agent domains meeting conditions (1) a length of the release agent domain in a longitudinal axis direction is 300 nm to 1,500 nm, (2) a ratio between the length in the longitudinal axis direction and in a short axis direction of the release agent domain is 3.0 to 15.0, (3) an angle between (a) a tangent line passing through a contact point of (a1) a circumference of a circle that is centered at a centroid of the release agent domain and is inscribed in an outer edge of the toner particle and (a2) the outer edge and (b) a line passing through the centroid and extending in the longitudinal axis direction is 0° to 45°, and (4) a ratio of a distance between the centroid and the contact point to an equivalent circle diameter of the toner particle is 0.03 to 0.25.
    Type: Application
    Filed: July 20, 2016
    Publication date: August 10, 2017
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Atsushi SUGAWARA, Sakiko HIRAI, Masaru TAKAHASHI, Satomi HARA
  • Patent number: 9658547
    Abstract: A brilliant toner includes a toner particle that includes a binder resin, a flake-shaped brilliant pigment, and a layered inorganic substance, wherein a content of the layered inorganic substance is from 0.005% by weight to 2.0% by weight with respect to the toner particles, and 80% by weight or more of the layered inorganic substance is present in a portion being in a range of 5 nm to 20 nm from a surface of the toner particle.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: May 23, 2017
    Assignee: FUJI XEROX CO., LTD.
    Inventor: Satomi Hara
  • Publication number: 20170090321
    Abstract: A brilliant toner includes a toner particle that includes a binder resin, a flake-shaped brilliant pigment, and a layered inorganic substance, wherein a content of the layered inorganic substance is from 0.005% by weight to 2.0% by weight with respect to the toner particles, and 80% by weight or more of the layered inorganic substance is present in a portion being in a range of 5 nm to 20 nm from a surface of the toner particle.
    Type: Application
    Filed: February 12, 2016
    Publication date: March 30, 2017
    Applicant: FUJI XEROX CO., LTD.
    Inventor: Satomi HARA
  • Patent number: 9477167
    Abstract: An electrostatic charge image developing white toner includes toner particles that contain a binder resin, a titanium dioxide as a pigment and at least one selected from a group consisting of niobium and phosphorous, wherein an amount of the niobium is 0.005% by weight to 0.05% by weight or an amount of the phosphorous is 0.003% by weight to 0.05% by weight.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: October 25, 2016
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Satomi Hara, Masaru Takahashi, Shotaro Takahashi
  • Publication number: 20160246199
    Abstract: An electrostatic charge image developing white toner includes toner particles that contain a binder resin, a titanium dioxide as a pigment and at least one selected from a group consisting of niobium and phosphorous, wherein an amount of the niobium is 0.005% by weight to 0.05% by weight or an amount of the phosphorous is 0.003% by weight to 0.05% by weight.
    Type: Application
    Filed: July 9, 2015
    Publication date: August 25, 2016
    Inventors: Satomi HARA, Masaru TAKAHASHI, Shotaro TAKAHASHI
  • Publication number: 20160216626
    Abstract: There is provided a brilliant toner containing a toner particle containing a binder resin, and flat-shaped brilliant pigments, wherein the number of the brilliant pigment contained is from 3.5 to 15 and the plurality of brilliant pigments are oriented mutually in the same direction, and an electrostatic image developer containing the brilliant toner and a carrier, and a toner cartridge storing the brilliant toner, which is able to be attached to and detached from an image forming apparatus.
    Type: Application
    Filed: July 29, 2015
    Publication date: July 28, 2016
    Inventors: Tetsuya TAGUCHI, Atsushi SUGITATE, Shinya SAKAMOTO, Satomi HARA
  • Patent number: 9389529
    Abstract: A brilliant toner includes a brilliant pigment, an azo yellow pigment, and a magenta pigment, wherein when a solid image in which a toner applied amount is 4.0 g/m2 is formed, color saturation of the image is 25 to 55, a hue angle is 65° to 95°, and lightness is 50 to 80.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: July 12, 2016
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Sakiko Hirai, Atsushi Sugitate, Masaru Takahashi, Shotaro Takahashi, Satomi Hara
  • Publication number: 20160195829
    Abstract: A toner set includes a brilliant toner including a brilliant pigment; and a chromatic toner including a coloring agent that is different from the brilliant pigment, wherein the toner set satisfies the following expression: 1.2?Q1/Q2?5.0 wherein Q1 represents an endothermic quantity of the brilliant toner and Q2 represents an endothermic quantity of the chromatic toner.
    Type: Application
    Filed: July 2, 2015
    Publication date: July 7, 2016
    Inventors: Shotaro TAKAHASHI, Atsushi SUGITATE, Masaru TAKAHASHI, Sakiko HIRAI, Satomi HARA
  • Publication number: 20160085169
    Abstract: A brilliant toner includes a brilliant pigment, an azo yellow pigment, and a magenta pigment, wherein when a solid image in which a toner applied amount is 4.0 g/m2 is formed, color saturation of the image is 25 to 55, a hue angle is 65° to 95°, and lightness is 50 to 80.
    Type: Application
    Filed: January 23, 2015
    Publication date: March 24, 2016
    Inventors: Sakiko HIRAI, Atsushi SUGITATE, Masaru TAKAHASHI, Shotaro TAKAHASHI, Satomi HARA
  • Patent number: 9239532
    Abstract: A brilliant toner contains a metallic pigment and a binder resin, and content of Zn is from 0.00005% by weight to 1.0% by weight.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: January 19, 2016
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Sakiko Hirai, Atsushi Sugitate, Masaru Takahashi, Makoto Kamisaki, Satomi Hara
  • Publication number: 20160011533
    Abstract: An electrostatic charge image developing toner includes toner particles containing an aluminum pigment that is coated with silica and a binder resin, wherein the following formula is satisfied: A/B?0.040 where A represents a content (atom %) of a Si element of the toner particles and B represents a content (atom %) of a C element of the toner particles, A and B being measured by X-ray photoelectron spectroscopy (XPS).
    Type: Application
    Filed: January 9, 2015
    Publication date: January 14, 2016
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Satomi HARA, Atsushi SUGITATE, Masaru TAKAHASHI, Shotaro TAKAHASHI, Sakiko HIRAI
  • Publication number: 20150277252
    Abstract: A brilliant toner includes toner particles containing a binder resin, a brilliant pigment, and particles selected from hollow particles and porous particles, wherein a relative dielectric constant of the toner particles is from 2.0 to 6.0.
    Type: Application
    Filed: August 26, 2014
    Publication date: October 1, 2015
    Inventors: Masaru TAKAHASHI, Satomi HARA, Sakiko HIRAI, Shotaro TAKAHASHI, Atsushi SUGITATE
  • Publication number: 20150268572
    Abstract: An electrostatic charge image developing toner includes flake shape toner particles containing a binder resin and a flake shape brilliant pigment, and the toner particles satisfying the following expression: 1?L?3 wherein L represents an average distance (?m) between a tangent line A of the toner particle that is orthogonal to a long axis direction of the toner particle and a tangent line B of the brilliant pigment that is parallel to the tangent line A and closest to the tangent line A.
    Type: Application
    Filed: January 5, 2015
    Publication date: September 24, 2015
    Inventors: Shotaro TAKAHASHI, Atsushi SUGITATE, Masaru TAKAHASHI, Shuji SATO, Satomi HARA, Sakiko HIRAI
  • Publication number: 20150064615
    Abstract: A brilliant toner contains a metallic pigment and a binder resin, and content of Zn is from 0.00005% by weight to 1.0% by weight.
    Type: Application
    Filed: February 14, 2014
    Publication date: March 5, 2015
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Sakiko HIRAI, Atsushi SUGITATE, Masaru TAKAHASHI, Makoto KAMISAKI, Satomi HARA