Patents by Inventor Nobuo Saitou
Nobuo Saitou 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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Publication number: 20230133852Abstract: The present invention provides a decorative sheet which is provided with a relief pattern in the outer surface, while having excellent chemical resistance, wherein the relief pattern is suitably maintained even after molding. A decorative sheet which is provided with a relief pattern in the outer surface, while sequentially having, from the outer side, at least a first protective layer that constitutes the relief pattern and a second protective layer. The first protective layer is formed of a cured product of a resin composition that contains an ionizing radiation curable resin and a thermoplastic resin; and the second protective layer is formed of a cured product of an ionizing radiation curable resin composition that contains a polycarbonate (meth)acrylate.Type: ApplicationFiled: March 31, 2020Publication date: May 4, 2023Applicant: Dai Nippon Printing Co., Ltd.Inventors: Hiroaki Nakayama, Nobuo Saitou, Minoru Ariyama, Yoshiyuki Meiki, Sakie Kataoka, Kenta Takayama, Daisuke Yokoyama
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Patent number: 11123969Abstract: A decorative sheet includes a design layer, a primer layer and a surface protective layer formed by cross-linking and curing an ionizing radiation curable resin composition in this order on a base material. A surface of the surface protective layer is smooth. A ten point average roughness RzJIS on a rear face of the decorative sheet and a thickness T of the base material satisfies the following equation (I); and an arithmetic average roughness Ra on the rear face and a thickness T of the base material satisfies the following equation (II): T×0.30?RzJIS??(I) T×0.20?Ra?T×0.005??(II) Or an arithmetic average roughness Ra on a rear face of the decorative sheet is 1.0 to 10.0 ?m. A decorated resin molded article is produced by integrating the decorative sheet with an outer surface of a resin molded article at the same time as injection molding.Type: GrantFiled: February 21, 2018Date of Patent: September 21, 2021Assignee: Dai Nippon Printing Co., Ltd.Inventor: Nobuo Saitou
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Patent number: 10286634Abstract: The present invention provides a decorative sheet that excels in moldability and a decorative resin-molded article that uses the decorative sheet and that excels in chemical resistance. In the decorative sheet, at least a substrate layer and a surface protection layer formed of an ionizing radiation curable resin composition are stacked. The surface protection layer includes blocked isocyanate.Type: GrantFiled: March 24, 2015Date of Patent: May 14, 2019Assignee: Dai Nippon Printing Co., Ltd.Inventors: Sakie Kataoka, Nobuo Saitou, Megumi Awa, Hideaki Koike
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Patent number: 10265895Abstract: The decorative sheet for three-dimensional molding includes a thin metal film layer, a surface protection layer, and a base film, at least the thin metal film layer and the surface protection layer being disposed on the base film in this order, in which the surface protection layer consists of a cured material of an ionizing radiation curable resin composition containing a polycarbonate(meth)acrylate and/or an acrylic silicone (meth)acrylate. The decorative sheet for three-dimensional molding, which has excellent moldability, provides a decorative molded article with a metallic style in excellent design and with excellent abrasion resistance.Type: GrantFiled: March 23, 2012Date of Patent: April 23, 2019Assignee: Dai Nippon Printing Co., Ltd.Inventors: Mari Takano, Nobuo Saitou
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Publication number: 20180178497Abstract: A decorative sheet includes a design layer, a primer layer and a surface protective layer formed by cross-linking and curing an ionizing radiation curable resin composition in this order on a base material. A surface of the surface protective layer is smooth. A ten point average roughness RzJIS on a rear face of the decorative sheet and a thickness T of the base material satisfies the following equation (I); and an arithmetic average roughness Ra on the rear face and a thickness T of the base material satisfies the following equation (II): T×0.30?RzJIS??(I) T×0.20?Ra?T×0.005??(II) Or an arithmetic average roughness Ra on a rear face of the decorative sheet is 1.0 to 10.0 ?m. A decorated resin molded article is produced by integrating the decorative sheet with an outer surface of a resin molded article at the same time as injection molding.Type: ApplicationFiled: February 21, 2018Publication date: June 28, 2018Inventor: Nobuo Saitou
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Patent number: 9914285Abstract: A decorative sheet which comprises, on a base film layer, a second picture layer that is partially provided and a surface protective layer that is present on and in contact with the second picture layer and covers the entire surface of the base film layer including the region where the second picture layer is formed and the region where the second picture layer is not formed. The decorative sheet is characterized in that: a binder resin for a second picture ink that constitutes the second picture layer is a thermoplastic resin; the surface protective layer is formed of a crosslinking-cured product of an ionizing radiation curable resin composition that contains a polycarbonate (meth)acrylate and/or an acrylic silicone (meth)acrylate; and a low gloss pattern layer that has a low luster region is formed in the surface protective layer right above the second picture layer by the interaction between the ionizing radiation curable resin and the thermoplastic resin.Type: GrantFiled: April 28, 2016Date of Patent: March 13, 2018Assignee: DAI NIPPON PRINTING CO., LTD.Inventors: Takayoshi Akou, Nobuo Saitou, Emi Harigae
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Publication number: 20170095996Abstract: The present invention provides a decorative sheet that excels in moldability and a decorative resin-molded article that uses the decorative sheet and that excels in chemical resistance. In the decorative sheet, at least a substrate layer and a surface protection layer formed of an ionizing radiation curable resin composition are stacked. The surface protection layer includes blocked isocyanate.Type: ApplicationFiled: March 24, 2015Publication date: April 6, 2017Inventors: Sakie Kataoka, Nobuo Saitou, Megumi Awa, Hideaki Koike
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Patent number: 9605120Abstract: The invention provides a decorative sheet including at least a surface protective layer on a substrate, in which the surface protective layer includes a cured material of an ionizing radiation curable resin composition at least containing a polycarbonate(meth)acrylate (A) and a multi-functional (meth)acrylate (B) in a mass ratio (A)/(B) of (98/2)-(70/30). The invention also provides a decorative sheet including at least a surface protective layer on a substrate, in which the surface protective layer includes a cured material of an ionizing radiation curable resin composition at least containing an acrylic silicone (meth)acrylate (C) and a multi-functional (meth)acrylate (B) in a mass ratio (C)/(B) of (50/50)-(95/5). The present invention provides a decorative sheet with a surface protective layer having scratch resistance as well as three-dimensional formability.Type: GrantFiled: July 9, 2015Date of Patent: March 28, 2017Assignee: DAI NIPPON PRINTING CO., LTD.Inventors: Nobuo Saitou, Emi Harigae
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Patent number: 9440383Abstract: A decorative sheet for insert molding prepared by laminating at least a surface protective layer on a support that includes an ABS resin, wherein the support has a flexural modulus of 1500 to 3000 MPa, and a thickness of 100 to 500 ?m; the surface protective layer is obtained by cross-linking and curing an ionizing radiation curable resin composition; and the ionizing radiation curable resin composition has a tensile modulus of more than 100 MPa to less than 1000 MPa and a static frictional coefficient of 1.0 or less on a surface. The decorative sheet for insert molding includes at least a picture layer, a low glossy picture ink layer provided partially and the surface protective layer in this order on the support. The surface protective layer has a thickness of 1 to 30 ?m.Type: GrantFiled: November 8, 2013Date of Patent: September 13, 2016Assignee: Dai Nippon Printing Co., Ltd.Inventors: Nobuo Saitou, Jun Kaneki
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Publication number: 20160236447Abstract: A decorative sheet which comprises, on a base film layer, a second picture layer that is partially provided and a surface protective layer that is present on and in contact with the second picture layer and covers the entire surface of the base film layer including the region where the second picture layer is formed and the region where the second picture layer is not formed. The decorative sheet is characterized in that: a binder resin for a second picture ink that constitutes the second picture layer is a thermoplastic resin; the surface protective layer is formed of a crosslinking-cured product of an ionizing radiation curable resin composition that contains a polycarbonate (meth)acrylate and/or an acrylic silicone (meth)acrylate; and a low gloss pattern layer that has a low luster region is formed in the surface protective layer right above the second picture layer by the interaction between the ionizing radiation curable resin and the thermoplastic resin.Type: ApplicationFiled: April 28, 2016Publication date: August 18, 2016Inventors: Takayoshi AKOU, Nobuo SAITOU, Emi HARIGAE
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Publication number: 20160200082Abstract: The present invention provides a decorative sheet having high moldability and scratch resistance, and a high three-dimensional feeling when molded into a decorative resin molded article. The decorative sheet includes at least a base material layer, a first protective layer, and a second protective layer provided on a part of the first protective layer in this order, wherein the first protective layer is formed of an ionizing radiation curable resin composition containing a polyfunctional polycarbonate (meth)acrylate.Type: ApplicationFiled: September 30, 2014Publication date: July 14, 2016Applicant: DAI NIPPON PRINTING CO., LTD.Inventors: Megumi Awa, Nobuo Saitou, Sakie Kataoka, Hideaki Koike
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Patent number: 9352611Abstract: A decorative sheet which comprises, on a base film layer, a second picture layer that is partially provided and a surface protective layer that is present on and in contact with the second picture layer and covers the entire surface of the base film layer including the region where the second picture layer is formed and the region where the second picture layer is not formed. The decorative sheet is characterized in that: a binder resin for a second picture ink that constitutes the second picture layer is a thermoplastic resin; the surface protective layer is formed of a crosslinking-cured product of an ionizing radiation curable resin composition that contains a polycarbonate (meth)acrylate and/or an acrylic silicone (meth)acrylate; and a low gloss pattern layer that has a low luster region is formed in the surface protective layer right above the second picture layer by the interaction between the ionizing radiation curable resin and the thermoplastic resin.Type: GrantFiled: March 9, 2012Date of Patent: May 31, 2016Assignee: DAI NIPPON PRINTING CO., LTD.Inventors: Takayoshi Akou, Nobuo Saitou, Emi Harigae
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Patent number: 9334420Abstract: The decorative sheet includes a surface protection layer and a substrate at least, the surface protection layer being provided on the substrate, in which the surface protection layer consists of a cured material of an ionizing radiation curable resin composition at least containing a urethane(meth)acrylate with a polycarbonate skeleton (A) and a multi-functional (meth)acrylate (B) in a mass ratio ((A)/(B)) of (98/2)-(70/30).Type: GrantFiled: March 23, 2012Date of Patent: May 10, 2016Assignee: DAI NIPPON PRINTING CO., LTD.Inventor: Nobuo Saitou
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Patent number: 9120248Abstract: There are provided a shaping sheet provided on a surface thereof with a fine irregular shape which is capable of forming a fine pattern with a high-grade feel on a material to be shaped, and is excellent in releasability from the material, as well as a decorative plate shaped by the shaping sheet. The shaping sheet of the present invention includes a substrate, at least an ink layer partially formed on the substrate and a surface shaped layer which is present on and contacted with the ink layer so as to cover a whole surface including both a region where the ink layer is formed and a region where no ink layer is formed, wherein the surface shaped layer is formed by crosslinking and curing an ionizing radiation-curable resin composition, and has a convex shape on a surface thereof which is located in a portion just above the ink layer and in the vicinity of the portion.Type: GrantFiled: January 25, 2006Date of Patent: September 1, 2015Assignee: DAI NIPPON PRINTING CO., LTD.Inventors: Nobuo Saitou, Toshitake Kobayashi, Kenichi Tachihara, Takashi Iizuka
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Patent number: 9108392Abstract: The invention provides a decorative sheet including at least a surface protective layer on a substrate, in which the surface protective layer includes a cured material of an ionizing radiation curable resin composition at least containing a polycarbonate(meth)acrylate (A) and a multi-functional (meth)acrylate (B) in a mass ratio (A)/(B) of (98/2)-(70/30). The invention also provides a decorative sheet including at least a surface protective layer on a substrate, in which the surface protective layer includes a cured material of an ionizing radiation curable resin composition at least containing an acrylic silicone (meth)acrylate (C) and a multi-functional (meth)acrylate (B) in a mass ratio (C)/(B) of (50/50)-(95/5). The present invention provides a decorative sheet with a surface protective layer having scratch resistance as well as three-dimensional formability.Type: GrantFiled: January 28, 2011Date of Patent: August 18, 2015Assignee: DAI NIPPON PRINTING CO., LTD.Inventors: Nobuo Saitou, Emi Harigae
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Patent number: 9023742Abstract: Provided is a photocatalytic coating in which the coating per se is hardly eroded even when a photocatalyst is excited and a coating surface having strong hydrophobic tendency can be formed. The photocatalytic coating is prepared by dispersing or dissolving at least a photocatalyst, a tetrafluoro-ethylene-based resin obtained by graft polymerization of a sulfonic acid, a compound containing metal ion having an ionic radius not less than an ionic radius of calcium and/or complex ion having an ionic radius not less than the ionic radius of calcium into a solvent. Further, hydroxide is used as the compound containing the metal ion or an electrically neutral surfactant is added to the photocatalytic coating.Type: GrantFiled: February 3, 2011Date of Patent: May 5, 2015Assignees: Metaltech Co., Ltd., Kyushu Institute of TechnologyInventors: Nobuo Saitou, Tohru Kitamura, Teruki Matsukawa, Teruhisa Ohno
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Publication number: 20140302293Abstract: The decorative sheet for three-dimensional molding includes a thin metal film layer, a surface protection layer, and a base film, at least the thin metal film layer and the surface protection layer being disposed on the base film in this order, in which the surface protection layer consists of a cured material of an ionizing radiation curable resin composition containing a polycarbonate(meth)acrylate and/or an acrylic silicone (meth)acrylate. The decorative sheet for three-dimensional molding, which has excellent moldability, provides a decorative molded article with a metallic style in excellent design and with excellent abrasion resistance.Type: ApplicationFiled: March 23, 2012Publication date: October 9, 2014Applicant: DAI NIPPON PRINTING CO., LTD.Inventors: Mari Takano, Nobuo Saitou
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Publication number: 20140272293Abstract: A decorative sheet includes a design layer, a primer layer and a surface protective layer formed by cross-linking and curing an ionizing radiation curable resin composition in this order on a base material. A surface of the surface protective layer is smooth. In one aspect, a ten point average roughness RzJIS on a rear face of the decorative sheet and a thickness T of the base material satisfies the following equation (I); and an arithmetic average roughness Ra on the rear face and a thickness T of the base material satisfies the following equation (II): T×0.30?RzJIS??(I) T×0.20?Ra?T×0.005??(II). In another aspect, an arithmetic average roughness Ra on a rear face of the decorative sheet is 1.0 to 10.0 ?m.Type: ApplicationFiled: May 30, 2014Publication date: September 18, 2014Applicant: Dai Nippon Printing Co., Ltd.Inventor: Nobuo Saitou
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Publication number: 20140255669Abstract: A decorative sheet which comprises, on a base film layer, a second picture layer that is partially provided and a surface protective layer that is present on and in contact with the second picture layer and covers the entire surface of the base film layer including the region where the second picture layer is formed and the region where the second picture layer is not formed. The decorative sheet is characterized in that: a binder resin for a second picture ink that constitutes the second picture layer is a thermoplastic resin; the surface protective layer is formed of a crosslinking-cured product of an ionizing radiation curable resin composition that contains a polycarbonate (meth)acrylate and/or an acrylic silicone (meth)acrylate; and a low gloss pattern layer that has a low luster region is formed in the surface protective layer right above the second picture layer by the interaction between the ionizing radiation curable resin and the thermoplastic resin.Type: ApplicationFiled: March 9, 2012Publication date: September 11, 2014Inventors: Takayoshi Akou, Nobuo Saitou, Emi Harigae
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Patent number: 8801888Abstract: The present invention relates to a production process for a decorative sheet comprising a step in which a primer layer is formed on a releasing film having a smooth surface, a step in which a design layer is formed on the above primer layer, a step in which the primer layer and the design layer are transferred on a base material, a step in which the releasing film on the base material is peeled off, a step in which an ionizing radiation curable resin composition is laminated on the primer layer formed on the base material and a step in which the above ionizing radiation curable resin composition is cross-linked and cured to form a surface protective layer.Type: GrantFiled: June 30, 2011Date of Patent: August 12, 2014Assignee: Dai Nippon Printing Co., Ltd.Inventor: Nobuo Saitou