Patents by Inventor Hideharu HORI

Hideharu HORI 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: 9740127
    Abstract: A toner includes a plurality of toner particles each including a toner core and a shell layer disposed over the surface of the toner core. The shell layer includes a thermosetting portion substantially composed of a water-insoluble thermosetting resin and a thermoplastic portion substantially composed of a water-insoluble thermoplastic resin. At least a part of the thermoplastic portion has a shape of a film with projections and recesses and is located on the surface of the toner core. At least a part of the thermosetting portion is located on the thermoplastic portion. The part of the thermosetting portion located on the thermoplastic portion has a shape of a film along the shape of the thermoplastic portion.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: August 22, 2017
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Ryotaro Komada, Masami Tsujihiro, Jun Hioki, Hideharu Hori
  • Patent number: 9703221
    Abstract: A toner according to the present invention includes a plurality of toner particles each including a toner core and a shell layer disposed over a surface of the toner core. The shell layer contains a thermosetting resin. A ratio G*1/G*2 of complex modulus G*1 at 120° C. of a pellet formed using the toner relative to complex modulus G*2 at 120° C. of the toner is at least 2.0 and no greater than 3.0. The pellet is obtained by forming the toner into a size of 0.5 mm in thickness and 10 mm in diameter under forming conditions of 25° C. and 50 kg·f/cm2.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: July 11, 2017
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Hideharu Hori
  • Patent number: 9696647
    Abstract: An electrostatic latent image developing toner contains toner particles each containing a toner core, and a shell layer dividedly disposed as a plurality of segments on a surface of the toner core. The shell layer contains a hydrophobic thermoplastic resin and a hydrophilic thermosetting resin. A toner core-shell layer interface formation rate is 3.78×106 m?1 or more and 7.02×106 m?1 or less. A ratio of the hydrophobic thermoplastic resin to the toner core is 0.40% by mass or more and 1.55% by mass or less.
    Type: Grant
    Filed: June 21, 2016
    Date of Patent: July 4, 2017
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Hideharu Hori
  • Publication number: 20160378007
    Abstract: An electrostatic latent image developing toner contains toner particles each containing a toner core, and a shell layer dividedly disposed as a plurality of segments on a surface of the toner core. The shell layer contains a hydrophobic thermoplastic resin and a hydrophilic thermosetting resin. A toner core-shell layer interface formation rate is 3.78×106 m?1 or more and 7.02×106 m?1 or less. A ratio of the hydrophobic thermoplastic resin to the toner core is 0.40% by mass or more and 1.55% by mass or less.
    Type: Application
    Filed: June 21, 2016
    Publication date: December 29, 2016
    Applicant: KYOCERA Document Solutions Inc.
    Inventor: Hideharu HORI
  • Patent number: 9523937
    Abstract: An electrostatic latent image developing toner includes toner particles that each include a toner core and a shell layer disposed over a surface of the toner core. The shell layer contains a first shell resin and a second shell resin. The first shell resin is a hydrophilic thermoplastic resin, a hydrophobic thermoplastic resin, or a hydrophobic thermosetting resin. The second shell resin is a hydrophilic thermosetting resin. The first shell resin includes a repeating unit having an alcoholic hydroxyl group.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: December 20, 2016
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Masami Tsujihiro, Ryota Kobayashi, Hideharu Hori, Yusuke Washino
  • Publication number: 20160342102
    Abstract: A toner according to the present invention includes a plurality of toner particles each including a toner core and a shell layer disposed over a surface of the toner core. The shell layer contains a thermosetting resin. A ratio G*1/G*2 of complex modulus G*1 at 120° C. of a pellet formed using the toner relative to complex modulus G*2 at 120° C. of the toner is at least 2.0 and no greater than 3.0. The pellet is obtained by forming the toner into a size of 0.5 mm in thickness and 10 mm in diameter under forming conditions of 25° C. and 50 kg·f/cm2.
    Type: Application
    Filed: February 10, 2015
    Publication date: November 24, 2016
    Applicant: KYOCERA Document Solutions Inc.
    Inventor: Hideharu HORI
  • Publication number: 20160252835
    Abstract: A toner includes a plurality of toner particles each including a toner core and a shell layer disposed over the surface of the toner core. The shell layer includes a thermosetting portion substantially composed of a water-insoluble thermosetting resin and a thermoplastic portion substantially composed of a water-insoluble thermoplastic resin. At least a part of the thermoplastic portion has a shape of a film with projections and recesses and is located on the surface of the toner core. At least a part of the thermosetting portion is located on the thermoplastic portion. The part of the thermosetting portion located on the thermoplastic portion has a shape of a film along the shape of the thermoplastic portion.
    Type: Application
    Filed: February 19, 2016
    Publication date: September 1, 2016
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Ryotaro KOMADA, Masami TSUJIHIRO, Jun HIOKI, Hideharu HORI
  • Publication number: 20160187796
    Abstract: An electrostatic latent image developing toner includes toner particles that each include a toner core and a shell layer disposed over a surface of the toner core. The shell layer contains a first shell resin and a second shell resin. The first shell resin is a hydrophilic thermoplastic resin, a hydrophobic thermoplastic resin, or a hydrophobic thermosetting resin. The second shell resin is a hydrophilic thermosetting resin. The first shell resin includes a repeating unit having an alcoholic hydroxyl group.
    Type: Application
    Filed: December 22, 2015
    Publication date: June 30, 2016
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Masami TSUJIHIRO, Ryota KOBAYASHI, Hideharu HORI, Yusuke WASHINO