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).
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Patent number: 9740127Abstract: 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: GrantFiled: February 19, 2016Date of Patent: August 22, 2017Assignee: KYOCERA Document Solutions Inc.Inventors: Ryotaro Komada, Masami Tsujihiro, Jun Hioki, Hideharu Hori
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Patent number: 9703221Abstract: 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: GrantFiled: February 10, 2015Date of Patent: July 11, 2017Assignee: KYOCERA Document Solutions Inc.Inventor: Hideharu Hori
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Patent number: 9696647Abstract: 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: GrantFiled: June 21, 2016Date of Patent: July 4, 2017Assignee: KYOCERA Document Solutions Inc.Inventor: Hideharu Hori
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Publication number: 20160378007Abstract: 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: ApplicationFiled: June 21, 2016Publication date: December 29, 2016Applicant: KYOCERA Document Solutions Inc.Inventor: Hideharu HORI
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Patent number: 9523937Abstract: 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: GrantFiled: December 22, 2015Date of Patent: December 20, 2016Assignee: KYOCERA Document Solutions Inc.Inventors: Masami Tsujihiro, Ryota Kobayashi, Hideharu Hori, Yusuke Washino
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Publication number: 20160342102Abstract: 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: ApplicationFiled: February 10, 2015Publication date: November 24, 2016Applicant: KYOCERA Document Solutions Inc.Inventor: Hideharu HORI
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Publication number: 20160252835Abstract: 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: ApplicationFiled: February 19, 2016Publication date: September 1, 2016Applicant: KYOCERA Document Solutions Inc.Inventors: Ryotaro KOMADA, Masami TSUJIHIRO, Jun HIOKI, Hideharu HORI
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Publication number: 20160187796Abstract: 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: ApplicationFiled: December 22, 2015Publication date: June 30, 2016Applicant: KYOCERA Document Solutions Inc.Inventors: Masami TSUJIHIRO, Ryota KOBAYASHI, Hideharu HORI, Yusuke WASHINO