Patents by Inventor Atsuhisa Miyawaki

Atsuhisa Miyawaki 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: 10577485
    Abstract: The present invention is directed to gas barrier coating compositions comprising a nanocomposite formed from a polymer and a nanoparticulate clay. The gas barrier coatings are applied to packaging materials such as food and pharmaceutical packaging and exhibit improved adhesion and barriers to gases such as oxygen, carbon dioxide, nitrogen and water vapour.
    Type: Grant
    Filed: May 5, 2016
    Date of Patent: March 3, 2020
    Assignee: Sun Chemical Corporation
    Inventors: Philippe Schottland, Atsuhisa Miyawaki, Kenji Nakamura, Hiroyuki Takeda
  • Patent number: 10158087
    Abstract: The present invention provides an organic thin film and an organic transistor having high performance stability and mobility. Specifically, there are provided an organic thin film including a compound containing a charge transporting molecular unit A having a structure of an aromatic fused ring system and a unit B serving as a side chain, the compound having a bilayer structure; an organic semiconductor device including the organic thin film; and an organic transistor including the organic thin film used as an organic semiconductor layer.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: December 18, 2018
    Assignee: DIC CORPORATION (TOKYO)
    Inventors: Junichi Hanna, Hiroaki Iino, Yasuyuki Watanabe, Junichiro Koike, Hiroshi Maki, Yutaka Tachikawa, Atsuhisa Miyawaki, Yoshinobu Sakurai
  • Publication number: 20180118921
    Abstract: The present invention is directed to gas barrier coating compositions comprising a nanocomposite formed from a polymer and a nanoparticulate clay. The gas barrier coatings are applied to packaging materials such as food and pharmaceutical packaging and exhibit improved adhesion and barriers to gases such as oxygen, carbon dioxide, nitrogen and water vapour.
    Type: Application
    Filed: May 5, 2016
    Publication date: May 3, 2018
    Applicant: SUN CHEMICAL CORPORATION
    Inventors: Philippe SCHOTTLAND, Atsuhisa MIYAWAKI, Kenji NAKAMURA, Hiroyuki TAKEDA
  • Patent number: 9490433
    Abstract: The present invention, the present invention relates to an organic semiconductor material having a benzothienobenzothiophene skeleton, an organic semiconductor ink containing the organic semiconductor material, and an organic transistor using the organic semiconductor material. An object of the present invention is to provide an organic semiconductor material that easily provides a film having a high carrier mobility without the need for a complicated process. It was found that a BTBT derivative having a particular arylene acetylene structure is crystallized by way of a high-order liquid crystal phase having a highly ordered molecular arrangement, and thus the BTBT derivative easily forms a film having a high mobility without requiring complicated heat treatment even when the film is formed by printing. This finding led to the achievement of the object.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: November 8, 2016
    Assignees: DIC CORPORATION, TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Atsuhisa Miyawaki, Tetsuo Kusumoto, Yoshio Aoki, Aya Ishizuka, Yoshinobu Sakurai, Yasuyuki Watanabe, Jun-ichi Hanna
  • Publication number: 20160049596
    Abstract: The present invention provides an organic thin film and an organic transistor having high performance stability and mobility. Specifically, there are provided an organic thin film including a compound containing a charge transporting molecular unit A having a structure of an aromatic fused ring system and a unit B serving as a side chain, the compound having a bilayer structure; an organic semiconductor device including the organic thin film; and an organic transistor including the organic thin film used as an organic semiconductor layer.
    Type: Application
    Filed: March 6, 2014
    Publication date: February 18, 2016
    Applicants: DIC CORPORATION, TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Junichi HANNA, Hiroaki LINO, Yasuyuki WATANABE, Junichiro KOIKE, Hiroshi MAKI, Yutaka TACHIKAWA, Atsuhisa MIYAWAKI, Yoshinobu SAKURAI
  • Patent number: 9156931
    Abstract: There are provided a radical polymerizable composition having a low viscosity suitable for coating, a cured product obtained by curing the composition, the cured product having a high refractive index and high toughness and being not easily cracked or chipped when cutting, and a plastic lens obtained by curing the composition. A radical polymerizable composition includes phenylbenzyl(meth)acrylate (A), a urethane(meth)acrylate (X) having an aromatic ring in its molecular structure, and a radical polymerization initiator (Y) as essential components.
    Type: Grant
    Filed: March 12, 2012
    Date of Patent: October 13, 2015
    Assignee: DIC Corporation
    Inventors: Nobuo Kobayashi, Akihiro Kondo, Atsuhisa Miyawaki, Naoya Ikushima, Kazuaki Hatsusaka
  • Patent number: 9150680
    Abstract: There are provided a radically polymerizable composition that has a low viscosity suitable for use in coating and that forms a cured product having a high refractive index, a cured product formed by curing the composition, and plastic lens formed by curing the composition. The radically polymerizable composition includes, as essential components, phenylbenzyl acrylate (A); and bis[(meth)acryloylmethyl]biphenyl (B) or biphenyl compound (C) having a molecular structure in which biphenyl structures are bonded to each other through a methylene.
    Type: Grant
    Filed: March 12, 2012
    Date of Patent: October 6, 2015
    Assignee: DIC Corporation
    Inventors: Akihiro Kondo, Atsuhisa Miyawaki, Nobuo Kobayashi, Naoya Ikushima, Kazuaki Hatsusaka
  • Publication number: 20150228913
    Abstract: The present invention, the present invention relates to an organic semiconductor material having a benzothienobenzothiophene skeleton, an organic semiconductor ink containing the organic semiconductor material, and an organic transistor using the organic semiconductor material. An object of the present invention is to provide an organic semiconductor material that easily provides a film having a high carrier mobility without the need for a complicated process. It was found that a BTBT derivative having a particular arylene acetylene structure is crystallized by way of a high-order liquid crystal phase having a highly ordered molecular arrangement, and thus the BTBT derivative easily forms a film having a high mobility without requiring complicated heat treatment even when the film is formed by printing. This finding led to the achievement of the object.
    Type: Application
    Filed: September 10, 2013
    Publication date: August 13, 2015
    Applicants: DIC Corporation, TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Atsuhisa Miyawaki, Tetsuo Kusumoto, Yoshio Aoki, Aya Ishizuka, Yoshinobu Sakurai, Yasuyuki Watanabe, Jun-ichi Hanna
  • Publication number: 20150057422
    Abstract: There are provided a radically polymerizable composition that has a low viscosity suitable for use in coating and that forms a cured product having a high refractive index, a cured product formed by curing the composition, and plastic lens formed by curing the composition. The radically polymerizable composition includes, as essential components, phenylbenzyl acrylate (A); and bis[(meth)acryloylmethyl]biphenyl (B) or biphenyl compound (C) having a molecular structure in which biphenyl structures are bonded to each other through a methylene.
    Type: Application
    Filed: March 12, 2012
    Publication date: February 26, 2015
    Applicant: DIC CORPORATION
    Inventors: Akihiro Kondo, Atsuhisa Miyawaki, Nobuo Kobayashi, Naoya Ikushima, Kazuaki Hatsusaka
  • Patent number: 8927650
    Abstract: There are provided a radical polymerizable composition having a low viscosity suitable for coating and a cured product and a plastic lens each obtained by curing the composition, the cured product having a high refractive index, good adhesiveness to a plastic film substrate, and good adhesiveness kept even under high-temperature and high-humidity conditions. The radical polymerizable composition includes phenylbenzyl (meth)acrylate (A), an epoxy (meth)acrylate (X) having an aromatic ring in its molecular structure, and a radical polymerization initiator (Y) as essential components.
    Type: Grant
    Filed: December 30, 2013
    Date of Patent: January 6, 2015
    Assignee: DIC Corporation
    Inventors: Nobuo Kobayashi, Akihiro Kondo, Atsuhisa Miyawaki, Naoya Ikushima, Kazuaki Hatsusaka
  • Patent number: 8912300
    Abstract: There are provided a radical polymerizable composition having a low viscosity suitable for coating and a cured product and a plastic lens each obtained by curing the composition, the cured product having a high refractive index, good adhesiveness to a plastic film substrate, and good adhesiveness kept even under high-temperature and high-humidity conditions. The radical polymerizable composition includes phenylbenzyl (meth)acrylate (A), an epoxy (meth)acrylate (X) having an aromatic ring in its molecular structure, and a radical polymerization initiator (Y) as essential components.
    Type: Grant
    Filed: March 12, 2012
    Date of Patent: December 16, 2014
    Assignee: DIC Corporation
    Inventors: Nobuo Kobayashi, Akihiro Kondo, Atsuhisa Miyawaki, Naoya Ikushima, Kazuaki Hatsusaka
  • Publication number: 20140148525
    Abstract: There are provided a radical polymerizable composition having a low viscosity suitable for coating, a cured product obtained by curing the composition, the cured product having a high refractive index and high toughness and being not easily cracked or chipped when cutting, and a plastic lens obtained by curing the composition. A radical polymerizable composition includes phenylbenzyl(meth)acrylate (A), a urethane(meth)acrylate (X) having an aromatic ring in its molecular structure, and a radical polymerization initiator (Y) as essential components.
    Type: Application
    Filed: March 12, 2012
    Publication date: May 29, 2014
    Applicant: DIC CORPORATION
    Inventors: Nobuo Kobayashi, Akihiro Kondo, Atsuhisa Miyawaki, Naoya Ikushima, Kazuaki Hatsusaka
  • Publication number: 20140128562
    Abstract: There are provided a radical polymerizable composition having a low viscosity suitable for coating and a cured product and a plastic lens each obtained by curing the composition, the cured product having a high refractive index, good adhesiveness to a plastic film substrate, and good adhesiveness kept even under high-temperature and high-humidity conditions. The radical polymerizable composition includes phenylbenzyl (meth)acrylate (A), an epoxy (meth)acrylate (X) having an aromatic ring in its molecular structure, and a radical polymerization initiator (Y) as essential components.
    Type: Application
    Filed: March 12, 2012
    Publication date: May 8, 2014
    Applicant: DIC CORPORATION
    Inventors: Nobuo Kobayashi, Akihiro Kondo, Atsuhisa Miyawaki, Naoya Ikushima, Kazuaki Hatsusaka
  • Publication number: 20140114037
    Abstract: There are provided a radical polymerizable composition having a low viscosity suitable for coating and a cured product and a plastic lens each obtained by curing the composition, the cured product having a high refractive index, good adhesiveness to a plastic film substrate, and good adhesiveness kept even under high-temperature and high-humidity conditions. The radical polymerizable composition includes phenylbenzyl (meth)acrylate (A), an epoxy (meth)acrylate (X) having an aromatic ring in its molecular structure, and a radical polymerization initiator (Y) as essential components.
    Type: Application
    Filed: December 30, 2013
    Publication date: April 24, 2014
    Applicant: DIC CORPORATION
    Inventors: Nobuo Kobayashi, Akihiro Kondo, Atsuhisa Miyawaki, Naoya Ikushima, Kazuaki Hatsusaka