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).
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Patent number: 10577485Abstract: 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: GrantFiled: May 5, 2016Date of Patent: March 3, 2020Assignee: Sun Chemical CorporationInventors: Philippe Schottland, Atsuhisa Miyawaki, Kenji Nakamura, Hiroyuki Takeda
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Patent number: 10158087Abstract: 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: GrantFiled: March 6, 2014Date of Patent: December 18, 2018Assignee: DIC CORPORATION (TOKYO)Inventors: Junichi Hanna, Hiroaki Iino, Yasuyuki Watanabe, Junichiro Koike, Hiroshi Maki, Yutaka Tachikawa, Atsuhisa Miyawaki, Yoshinobu Sakurai
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Publication number: 20180118921Abstract: 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: ApplicationFiled: May 5, 2016Publication date: May 3, 2018Applicant: SUN CHEMICAL CORPORATIONInventors: Philippe SCHOTTLAND, Atsuhisa MIYAWAKI, Kenji NAKAMURA, Hiroyuki TAKEDA
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Patent number: 9490433Abstract: 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: GrantFiled: September 10, 2013Date of Patent: November 8, 2016Assignees: DIC CORPORATION, TOKYO INSTITUTE OF TECHNOLOGYInventors: Atsuhisa Miyawaki, Tetsuo Kusumoto, Yoshio Aoki, Aya Ishizuka, Yoshinobu Sakurai, Yasuyuki Watanabe, Jun-ichi Hanna
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Publication number: 20160049596Abstract: 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: ApplicationFiled: March 6, 2014Publication date: February 18, 2016Applicants: DIC CORPORATION, TOKYO INSTITUTE OF TECHNOLOGYInventors: Junichi HANNA, Hiroaki LINO, Yasuyuki WATANABE, Junichiro KOIKE, Hiroshi MAKI, Yutaka TACHIKAWA, Atsuhisa MIYAWAKI, Yoshinobu SAKURAI
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Patent number: 9156931Abstract: 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: GrantFiled: March 12, 2012Date of Patent: October 13, 2015Assignee: DIC CorporationInventors: Nobuo Kobayashi, Akihiro Kondo, Atsuhisa Miyawaki, Naoya Ikushima, Kazuaki Hatsusaka
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Patent number: 9150680Abstract: 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: GrantFiled: March 12, 2012Date of Patent: October 6, 2015Assignee: DIC CorporationInventors: Akihiro Kondo, Atsuhisa Miyawaki, Nobuo Kobayashi, Naoya Ikushima, Kazuaki Hatsusaka
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Publication number: 20150228913Abstract: 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: ApplicationFiled: September 10, 2013Publication date: August 13, 2015Applicants: DIC Corporation, TOKYO INSTITUTE OF TECHNOLOGYInventors: Atsuhisa Miyawaki, Tetsuo Kusumoto, Yoshio Aoki, Aya Ishizuka, Yoshinobu Sakurai, Yasuyuki Watanabe, Jun-ichi Hanna
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Publication number: 20150057422Abstract: 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: ApplicationFiled: March 12, 2012Publication date: February 26, 2015Applicant: DIC CORPORATIONInventors: Akihiro Kondo, Atsuhisa Miyawaki, Nobuo Kobayashi, Naoya Ikushima, Kazuaki Hatsusaka
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Patent number: 8927650Abstract: 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: GrantFiled: December 30, 2013Date of Patent: January 6, 2015Assignee: DIC CorporationInventors: Nobuo Kobayashi, Akihiro Kondo, Atsuhisa Miyawaki, Naoya Ikushima, Kazuaki Hatsusaka
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Patent number: 8912300Abstract: 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: GrantFiled: March 12, 2012Date of Patent: December 16, 2014Assignee: DIC CorporationInventors: Nobuo Kobayashi, Akihiro Kondo, Atsuhisa Miyawaki, Naoya Ikushima, Kazuaki Hatsusaka
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Publication number: 20140148525Abstract: 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: ApplicationFiled: March 12, 2012Publication date: May 29, 2014Applicant: DIC CORPORATIONInventors: Nobuo Kobayashi, Akihiro Kondo, Atsuhisa Miyawaki, Naoya Ikushima, Kazuaki Hatsusaka
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Publication number: 20140128562Abstract: 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: ApplicationFiled: March 12, 2012Publication date: May 8, 2014Applicant: DIC CORPORATIONInventors: Nobuo Kobayashi, Akihiro Kondo, Atsuhisa Miyawaki, Naoya Ikushima, Kazuaki Hatsusaka
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Publication number: 20140114037Abstract: 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: ApplicationFiled: December 30, 2013Publication date: April 24, 2014Applicant: DIC CORPORATIONInventors: Nobuo Kobayashi, Akihiro Kondo, Atsuhisa Miyawaki, Naoya Ikushima, Kazuaki Hatsusaka