Patents by Inventor Kosuke Saeki

Kosuke Saeki 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).

  • Publication number: 20200328317
    Abstract: To provide a sealing material sheet for a solar-cell module that has high productivity without performing crosslinking processing, and has a high tensile shear adhesion force at normal temperature at a high level in addition to heat resistance and molding characteristics. A sealing material sheet is a multi-layer sheet using a polyethylene-based resin as a base resin, a core layer 11 has a density of 0.880 g/cm3 to 0.930 g/cm3 and a melting point of 70° C. or higher, a skin layer 12 has a density of 0.880 g/cm3 to 0.900 g/cm3 and a melting point of 90° C. or lower and contains a silane-modified polyethylene-based resin, a weight average molecular weight of the silane-modified polyethylene-based resin contained in the skin layer 12 in terms of polystyrene is 70000 to 120000, and a polymerized silane amount of the skin layer 12 in the whole resin component is 300 ppm to 2000 ppm.
    Type: Application
    Filed: April 11, 2019
    Publication date: October 15, 2020
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Kosuke SAEKI, Shinya YONEDA, Jun TANAKA, Hiroaki TAMAKI, Shinsuke NAGINO, Naohiro OBONAI
  • Publication number: 20200328316
    Abstract: To provide a sealing material sheet for a solar-cell module that has high productivity, and can also suppress unevenness in thickness at the time of integration as a solar-cell module. There is provided a sealing material sheet 1 in which there are two inflection point temperatures that are temperatures only around which a change rate of the linear expansion coefficient locally increases, a first inflection point temperature at a low temperature side of two inflection point temperatures is within a range of 55° C. to 70° C., and a second inflection point at a high temperature side of the inflection point temperatures is within a range of 80° C. to 95° C.
    Type: Application
    Filed: April 11, 2019
    Publication date: October 15, 2020
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Kosuke SAEKI, Shinya YONEDA, Jun TANAKA, Hiroaki TAMAKI, Shinsuke NAGINO, Naohiro OBONAI
  • Patent number: 10295921
    Abstract: A toner comprising a toner particle containing a resin and a colorant, wherein, with respect to a temperature-storage elastic modulus curve obtained by powder dynamic viscoelastic measurement on the toner, (I) the relative minimum values for the variation in the storage elastic modulus E? with respect to temperature T in the temperature range of at least 30° C. and not more than 180° C. have a relative minimum value of equal to or less than ?1.00×107 and the relative minimum value on the lowest temperature side is equal to or less than ?1.00×108; (II) the storage elastic modulus E? (50) of the toner at 50° C. is at least 1.00×109 and not more than 9.00×109; and (III) for a storage elastic modulus E? (120) of the toner at 120° C., E? (50) and E? (120) satisfy 1.50?[E? (50)]/[E? (120)]?3.00.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: May 21, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Atsuhiko Ohmori, Shuhei Moribe, Koji Nishikawa, Kosuke Fukudome, Daisuke Yoshiba, Hiroyuki Tomono, Shotaro Nomura, Sho Kimura, Tatsuya Saeki, Katsuhisa Yamazaki
  • Patent number: 10289016
    Abstract: Provided is a toner having a toner particle including a binder resin and a colorant, wherein the toner has a softening point of at least 100° C. and not more than 150° C., and when Tgt represents a glass transition temperature (° C.) of the toner during a second temperature rise as measured with a DSC, Tgf represents a glass transition temperature (° C.) of a tetrahydrofuran-insoluble matter of the binder resin during a second temperature rise as measured with a DSC, and Tgk represents a glass transition temperature (° C.) of a tetrahydrofuran-soluble matter of the binder resin during a second temperature rise as measured with a DSC, the toner satisfies Tgt>Tgf (1), Tgt>Tgk (2), and 35° C.?Tgf?70° C. (3).
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: May 14, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kosuke Fukudome, Hiroyuki Tomono, Shuhei Moribe, Koji Nishikawa, Daisuke Yoshiba, Shotaro Nomura, Atsuhiko Ohmori, Sho Kimura, Tatsuya Saeki, Katsuhisa Yamazaki
  • Patent number: 9570642
    Abstract: Provided is a sealing material sheet for solar cell modules, which is obtained by irradiating a polyethylene resin with ionizing radiation and has high transparency, heat resistance and adhesion at the same time. This sealing material sheet for solar cell modules contains a low density polyethylene having a density of 0.900 g/cm3 or less, while having a gel fraction of from 0% to 40% (inclusive) and a degree of dispersity (Mw/Mn), which is the ratio of the weight average molecular weight (Mw) to the number average molecular weight (Mn) in terms of polystyrene, of from 2.5 to 3.5 (inclusive).
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: February 14, 2017
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Hideki Matsui, Kosuke Saeki, Yasushi Shirahige, Noritoshi Akazawa, Toshio Yoshihara
  • Patent number: 9147784
    Abstract: The present invention provides a crosslinked polyethylene sealing material sheet for a solar-cell module offering exceptional heat resistance, wherein the sealing material sheet is provided with high metal-adhesion performance. A sealing material sheet for a solar-cell module comprises a sealing material sheet composition for a solar-cell module containing a polyethylene resin in a concentration of 0.900 g/cm3 or less, glycidyl methacrylate (GMA), a radical polymerization initiator, and triallyl isocyanurate (TAIC), wherein the GMA content of the sealing material sheet is 0.15 to 3.0% by mass, the TAIC content of the sealing material sheet is 0.15 to 3.0% by mass, and the radical polymerization initiator content of the sealer is 0.01 to 2.5% by mass.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: September 29, 2015
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Yasushi Shirahige, Kosuke Saeki, Hidenori Asai, Toshio Yoshihara
  • Publication number: 20150083207
    Abstract: The present invention provides a crosslinked polyethylene sealing material sheet for a solar-cell module offering exceptional heat resistance, wherein the sealing material sheet is provided with high metal-adhesion performance. A sealing material sheet for a solar-cell module comprises a sealing material sheet composition for a solar-cell module containing a polyethylene resin in a concentration of 0.900 g/cm3 or less, glycidyl methacrylate (GMA), a radical polymerization initiator, and triallyl isocyanurate (TAIC), wherein the GMA content of the sealing material sheet is 0.15 to 3.0% by mass, the TAIC content of the sealing material sheet is 0.15 to 3.0% by mass, and the radical polymerization initiator content of the sealer is 0.01 to 2.5% by mass.
    Type: Application
    Filed: March 28, 2013
    Publication date: March 26, 2015
    Inventors: Yasushi Shirahige, Kosuke Saeki, Hidenori Assai, Toshio Yoshihara
  • Publication number: 20140311557
    Abstract: Provided is a sealing material sheet for solar cell modules, which is obtained by irradiating a polyethylene resin with ionizing radiation and has high transparency, heat resistance and adhesion at the same time. This sealing material sheet for solar cell modules contains a low density polyethylene having a density of 0.900 g/cm3 or less, while having a gel fraction of from 0% to 40% (inclusive) and a degree of dispersity (Mw/Mn), which is the ratio of the weight average molecular weight (Mw) to the number average molecular weight (Mn) in terms of polystyrene, of from 2.5 to 3.5 (inclusive).
    Type: Application
    Filed: December 3, 2012
    Publication date: October 23, 2014
    Inventors: Hideki Matsui, Kosuke Saeki, Yasushi Shirahige, Noritoshi Akazawa, Toshio Yoshihara