Patents by Inventor Kana MITSUZAWA

Kana MITSUZAWA 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).

  • Non-aqueous ink jet ink composition
    Patent number: 9790387
    Abstract: There is provided a non-aqueous ink jet ink composition, including a pigment, a non-aqueous solvent, and a surfactant, in which the ink composition contains an acetylene glycol-based surfactant having a HLB value of 1.0 to 6.0 as the surfactant.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: October 17, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Hiroaki Kumeta, Kana Mitsuzawa
  • Ink composition
    Patent number: 9695327
    Abstract: An ink composition for ink jet recording includes: a first phase containing a pigment, a cellulose derivative, and water; and a second phase containing an organic solvent having a 50% distillation point of 280° C. or lower, in which the content of the cellulose derivative in the first phase is 3 mass % to 15 mass % with respect to the total mass of the first phase.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: July 4, 2017
    Assignee: Seiko Epson Corporation
    Inventor: Kana Mitsuzawa
  • NON-AQUEOUS INK JET INK COMPOSITION
    Publication number: 20160264804
    Abstract: There is provided a non-aqueous ink jet ink composition, including a pigment, a non-aqueous solvent, and a surfactant, in which the ink composition contains an acetylene glycol-based surfactant having a HLB value of 1.0 to 6.0 as the surfactant.
    Type: Application
    Filed: March 8, 2016
    Publication date: September 15, 2016
    Inventors: Hiroaki KUMETA, Kana MITSUZAWA
  • INK COMPOSITION
    Publication number: 20160185989
    Abstract: An ink composition for ink jet recording includes: a first phase containing a pigment, a cellulose derivative, and water; and a second phase containing an organic solvent having a 50% distillation point of 280° C. or lower, in which the content of the cellulose derivative in the first phase is 3 mass % to 15 mass % with respect to the total mass of the first phase.
    Type: Application
    Filed: December 15, 2015
    Publication date: June 30, 2016
    Inventor: Kana MITSUZAWA
  • Ink set and image forming method
    Patent number: 9279062
    Abstract: An ink set includes a white ink jet pigment ink and a non-white ink jet pigment ink containing a diene copolymer.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: March 8, 2016
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Kana Mitsuzawa, Toru Saito, Masakazu Ohashi, Makoto Furue
  • Liquid developer and image-forming apparatus
    Patent number: 8679720
    Abstract: A liquid developer contains toner, a carrier liquid in which the toner are dispersed, and a graft copolymer of an acrylic polymer and a polysiloxane.
    Type: Grant
    Filed: August 16, 2010
    Date of Patent: March 25, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Kana Mitsuzawa, Masahiro Oki
  • INK COMPOSITION FOR INK JET TEXTILE PRINTING
    Publication number: 20130253106
    Abstract: There is provided an ink composition for ink jet textile printing, the ink composition containing a pigment, a urethane resin emulsion, an emulsion-type silicone compound, and water, wherein the urethane resin emulsion content is 3.5 to 14 mass % relative to the total mass of the ink composition, the emulsion-type silicone compound content is in the range of 0.4 to 3.0 mass % relative to the total mass of the ink composition, and the water content is in the range of 20 to 80 mass % relative to the total mass of the ink composition.
    Type: Application
    Filed: March 22, 2013
    Publication date: September 26, 2013
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Toru Saito, Makoto Furue, Masakazu Ohashi, Kana Mitsuzawa
  • LIQUID DEVELOPER AND IMAGE-FORMING APPARATUS
    Publication number: 20110045400
    Abstract: A liquid developer contains toner, a carrier liquid in which the toner are dispersed, and a graft copolymer of an acrylic polymer and a polysiloxane.
    Type: Application
    Filed: August 16, 2010
    Publication date: February 24, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Kana MITSUZAWA, Masahiro OKI
  • LIQUID DEVELOPER AND IMAGE FORMING METHOD
    Publication number: 20100248128
    Abstract: Provided is a liquid developer containing toner particles and an insulating liquid containing a hydrogen modified silicon compound.
    Type: Application
    Filed: March 16, 2010
    Publication date: September 30, 2010
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Kana MITSUZAWA, Masahiro OKI, Yoshihiro UENO