Patents by Inventor Masamitsu Nagahama
Masamitsu Nagahama 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: 20230087440Abstract: A decorative sheet includes at least a topcoat layer disposed to face a substrate layer in a first direction, the front surface of the topcoat layer having a wavy roughness profile measured with a cutoff wavelength ?s of 8 ?m and a cutoff wavelength ?c of 2.5 mm according to JIS B0601:2001 in a second direction perpendicular to the first direction, a selected evaluation portion of the wavy roughness profile comprising a plurality of profile elements, an evaluation length of the selected evaluation portion of the wavy roughness profile having 10 mm, the selected evaluation portion of the wavy roughness profile being designed to have an arithmetic mean deviation Ra of 10 ?m or less; and to have a mean width of the profile elements and a ten point height, the mean width and the ten point height satisfying the following expression: 5?RSm/RzJIS?40 . . . (1), where RSm represents the mean width, and RzJIS represents the ten point height.Type: ApplicationFiled: November 30, 2022Publication date: March 23, 2023Applicant: TOPPAN INC.Inventors: Mami NAGASHIMA, Masamitsu NAGAHAMA, Masatoshi TAKAHASHI
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Patent number: 11446906Abstract: A decorative sheet includes a primary film layer; a transparent resin layer; and a surface protective layer, in this order; the surface protective layer is formed of a plurality of layers with a layer located on an outermost surface is a surface protective layer, and a layer underlying the surface protective layer is a second surface protective layer and includes one or more ionizing radiation-curable resins having an erosion rate E in a range of 0.10 ?m/g or more and 0.45 ?m/g or less, and one or more thermosetting resins having an erosion rate E in a range of 0.30 ?m/g or more and 0.6 ?m/g or less, the erosion rate E being measured by using polygonal alumina powder having an average particle size (D50) of 1.2 ?m, and a mass ratio between the ionizing radiation-curable resin and the thermosetting resin (ionizing radiation-curable resin/thermosetting resin) is 95/5 to 40/60.Type: GrantFiled: June 17, 2021Date of Patent: September 20, 2022Assignee: TOPPAN PRINTING CO., LTD.Inventors: Yoshimi Yamasaki, Mami Nagashima, Masamitsu Nagahama, Masatoshi Takahashi
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Patent number: 11230631Abstract: To provide a decorative sheet including a transparent resin layer having high transparency and excellent surface scratch resistance from the viewpoint of the design properties and a transparent resin sheet. A decorative sheet (1) according to one aspect of the present invention has a transparent resin layer (4) containing a crystalline polypropylene resin as the main component, in which a value of a peak area ratio x represented by the following expression (1) of the transparent resin layer (4) is x?0.4. Herein, S040, S130, and Sam in the following expression (1) are peak areas determined from an X-ray diffraction spectrum obtained by measuring the transparent resin layer with an X-ray diffractometer, S040 is the peak area from the Miller index (040) of polypropylene ? crystals, S130 is the peak area from the Miller index (130) of the polypropylene ? crystals, and Sam is the peak area of an amorphous material.Type: GrantFiled: August 24, 2016Date of Patent: January 25, 2022Assignee: TOPPAN PRINTING CO., LTD.Inventors: Shinichi Miyamoto, Masashi Hattori, Masamitsu Nagahama, Akira Sato, Masatoshi Takahashi
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Patent number: 11148403Abstract: The present invention provides a decorative sheet having higher designability and weatherability over a long period of time by adding an organic ultraviolet absorbent and an inorganic ultraviolet absorbent each provided as organic ultraviolet absorbent vesicles and inorganic ultraviolet absorbent vesicles, respectively, to at least one of a top coat layer and a transparent resin layer. A decorative sheet of an aspect of the present invention includes a top coat layer as an outermost layer, and a transparent resin layer as an underlayer of the top coat layer, wherein an organic ultraviolet absorbent and an inorganic ultraviolet absorbent are added to at least one of the top coat layer and the transparent resin layer, and the organic ultraviolet absorbent and the inorganic ultraviolet absorbent are each encapsulated in vesicles having a monolayer outer membrane and provided as organic ultraviolet absorbent vesicles and inorganic ultraviolet absorbent vesicles, respectively.Type: GrantFiled: March 1, 2018Date of Patent: October 19, 2021Assignee: TOPPAN PRINTING CO., LTD.Inventors: Mami Kudo, Eiichi Higashikawa, Masamitsu Nagahama, Akira Sato, Masatoshi Takahashi
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Publication number: 20210316540Abstract: A decorative sheet includes a primary film layer; a transparent resin layer; and a surface protective layer, in this order; the surface protective layer is formed of a plurality of layers with a layer located on an outermost surface is a surface protective layer, and a layer underlying the surface protective layer is a second surface protective layer and includes one or more ionizing radiation-curable resins having an erosion rate E in a range of 0.10 ?m/g or more and 0.45 ?m/g or less, and one or more thermosetting resins having an erosion rate E in a range of 0.30 ?m/g or more and 0.6 ?m/g or less, the erosion rate E being measured by using polygonal alumina powder having an average particle size (D50) of 1.2 ?m, and a mass ratio between the ionizing radiation-curable resin and the thermosetting resin (ionizing radiation-curable resin/thermosetting resin) is 95/5 to 40/60.Type: ApplicationFiled: June 17, 2021Publication date: October 14, 2021Applicant: TOPPAN PRINTING CO.,LTD.Inventors: Yoshimi YAMASAKI, Mami NAGASHIMA, Masamitsu NAGAHAMA, Masatoshi TAKAHASHI
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Patent number: 10981364Abstract: A decorated sheet according to the present disclosure consists of a plurality of resin layers, wherein at least one of the resin layers comprises a nano-sized additive.Type: GrantFiled: November 11, 2015Date of Patent: April 20, 2021Assignee: TOPPAN PRINTING CO., LTD.Inventors: Hisashi Ikeda, Tatsuhiko Furuta, Shinichi Miyamoto, Masamitsu Nagahama, Akira Sato, Masatoshi Takahashi
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Patent number: 10906280Abstract: To provide a decorative sheet including a transparent resin layer having excellent post-processing resistance and high transparency. A decorative sheet (1) according to one aspect of the present invention has a transparent resin layer (4) containing a crystalline polypropylene resin as the main component. A value of a peak intensity ratio x represented by the following expression (1) of the transparent resin layer (4) is x?0.65. Herein, I997, I938, and I973 in the following expression (1) are peak intensity values calculated from the absorption spectrum obtained by Fourier infrared spectrometry of the transparent resin layer, and I997 is the peak intensity value at a wavenumber of 997 cm?1, I938 is the peak intensity value at a wavenumber of 938 cm?1, and I973 is the peak intensity value at a wavenumber of 973 cm?1.Type: GrantFiled: August 24, 2016Date of Patent: February 2, 2021Assignee: TOPPAN PRINTING CO., LTD.Inventors: Shinichi Miyamoto, Masashi Hattori, Masamitsu Nagahama, Akira Sato, Masatoshi Takahashi
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Patent number: 10899117Abstract: A decorative sheet including a substrate layer, and one or more layers of at least one of a transparent resin layer and a top coat layer provided on one surface of the substrate layer, the one or more layers being provided as a front surface layer, wherein at least one layer of the transparent resin layer and the top coat layer contains a radical scavenger, and the radical scavenger is contained in a form of radical scavenger vesicles, which encapsulate the radical scavenger within an outer membrane.Type: GrantFiled: April 30, 2019Date of Patent: January 26, 2021Assignee: TOPPAN PRINTING CO., LTD.Inventors: Naoyuki Shibayama, Masamitsu Nagahama, Akira Sato, Masatoshi Takahashi
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Patent number: 10703079Abstract: A decorative sheet that has a transparent resin layer having good V groove bending processability (post-processability) while maintaining high scratch resistance and transparency and a method of producing the decorative sheet. A decorative sheet (1) according to the present embodiment is a decorative sheet including at least a transparent resin layer (3) containing a highly crystalline polypropylene resin as a main component. The transparent resin layer (3) contains a low crystalline polypropylene resin added thereto in the range of 0.1 part by mass or more and 20 parts by mass or less relative to 100 parts by mass of the highly crystalline polypropylene resin, the low crystalline polypropylene resin having a tensile modulus in the range of 25 MPa or more and 500 MPa or less.Type: GrantFiled: September 19, 2018Date of Patent: July 7, 2020Assignee: TOPPAN PRINTING CO., LTD.Inventors: Megumi Kashiwame, Masashi Hattori, Tatsuhiko Furuta, Masamitsu Nagahama, Akira Sato, Masatoshi Takahashi
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Patent number: 10661538Abstract: An object of the present invention is to provide a decorative sheet excellent in post-processability and usable for flame-retardant application. A decorative sheet (1) according to one aspect of the present invention includes a plurality of resin layers. At least one layer of the resin layers is formed of a uniaxially stretched resin sheet (3) or a biaxially stretched resin sheet (3) constituted of a thermoplastic resin composition. The thermoplastic resin composition is produced by adding an inorganic pigment vesicle to a polyolefin-based resin. The inorganic pigment vesicle is produced by including an inorganic pigment in a vesicle having a monolayer outer membrane. The uniaxially stretched resin sheet (3) and the biaxially stretched resin sheet (3) have a value of a dichroic ratio R of R?0.3.Type: GrantFiled: September 2, 2016Date of Patent: May 26, 2020Assignee: TOPPAN PRINTING CO., LTD.Inventors: Shinichi Miyamoto, Masamitsu Nagahama, Akira Sato, Masatoshi Takahashi
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Patent number: 10518510Abstract: The present invention provides a decorative sheet comprising a transparent resin layer having good scratch resistance, good post-processing resistance, and high transparency, and a method of manufacturing the same. The decorative sheet according to one aspect of the present invention comprises at least a transparent resin layer formed by adding to a transparent olefin-based resin nucleating agent vesicles which are vesicles having a single layer outer membrane and containing a nucleating agent, and the Martens hardness of the transparent resin layer is 40 N/mm2 or higher.Type: GrantFiled: February 27, 2018Date of Patent: December 31, 2019Assignee: TOPPAN PRINTING CO., LTD.Inventors: Eiichi Higashikawa, Masamitsu Nagahama, Akira Sato, Masatoshi Takahashi
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Publication number: 20190255827Abstract: A decorative sheet including a substrate layer, and one or more layers of at least one of a transparent resin layer and a top coat layer provided on one surface of the substrate layer, the one or more layers being provided as a front surface layer, wherein at least one layer of the transparent resin layer and the top coat layer contains a radical scavenger, and the radical scavenger is contained in a form of radical scavenger vesicles, which encapsulate the radical scavenger within an outer membrane.Type: ApplicationFiled: April 30, 2019Publication date: August 22, 2019Applicant: TOPPAN PRINTING CO., LTD.Inventors: Naoyuki SHIBAYAMA, Masamitsu NAGAHAMA, Akira SATO, Masatoshi TAKAHASHI
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Publication number: 20190016104Abstract: A decorative sheet that has a transparent resin layer having good V groove bending processability (post-processability) while maintaining high scratch resistance and transparency and a method of producing the decorative sheet. A decorative sheet (1) according to the present embodiment is a decorative sheet including at least a transparent resin layer (3) containing a highly crystalline polypropylene resin as a main component. The transparent resin layer (3) contains a low crystalline polypropylene resin added thereto in the range of 0.1 part by mass or more and 20 parts by mass or less relative to 100 parts by mass of the highly crystalline polypropylene resin, the low crystalline polypropylene resin having a tensile modulus in the range of 25 MPa or more and 500 MPa or less.Type: ApplicationFiled: September 19, 2018Publication date: January 17, 2019Applicant: TOPPAN PRINTING CO., LTD.Inventors: Megumi KASHIWAME, Masashi HATTORI, Tatsuhiko FURUTA, Masamitsu NAGAHAMA, Akira SATO, Masatoshi TAKAHASHI
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Publication number: 20180264791Abstract: To provide a decorative sheet including a transparent resin layer having excellent post-processing resistance and high transparency. A decorative sheet (1) according to one aspect of the present invention has a transparent resin layer (4) containing a crystalline polypropylene resin as the main component. A value of a peak intensity ratio x represented by the following expression (1) of the transparent resin layer (4) is x?0.65. Herein, I997, I938, and I973 in the following expression (1) are peak intensity values calculated from the absorption spectrum obtained by Fourier infrared spectrometry of the transparent resin layer, and I997 is the peak intensity value at a wavenumber of 997 cm?1, I938 is the peak intensity value at a wavenumber of 938 cm?1, and I973 is the peak intensity value at a wavenumber of 973 cm?1.Type: ApplicationFiled: August 24, 2016Publication date: September 20, 2018Inventors: Shinichi MIYAMOTO, Masashi HATTORI, Masamitsu NAGAHAMA, Akira SATO, Masatoshi TAKAHASHI
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Publication number: 20180244877Abstract: To provide a decorative sheet including a transparent resin layer having high transparency and excellent surface scratch resistance from the viewpoint of the design properties and a transparent resin sheet. A decorative sheet (1) according to one aspect of the present invention has a transparent resin layer (4) containing a crystalline polypropylene resin as the main component, in which a value of a peak area ratio x represented by the following expression (1) of the transparent resin layer (4) is x?0.4. Herein, S040, S130, and Sam in the following expression (1) are peak areas determined from an X-ray diffraction spectrum obtained by measuring the transparent resin layer with an X-ray diffractometer, S040 is the peak area from the Miller index (040) of polypropylene a crystals, S130 is the peak area from the Miller index (130) of the polypropylene a crystals, and Sam is the peak area of an amorphous material.Type: ApplicationFiled: August 24, 2016Publication date: August 30, 2018Inventors: Shinichi MIYAMOTO, Masashi HATTORI, Masamitsu NAGAHAMA, Akira SATO, Masatoshi TAKAHASHI
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Publication number: 20180244022Abstract: An object of the present invention is to provide a decorative sheet excellent in post-processability and usable for flame-retardant application. A decorative sheet (1) according to one aspect of the present invention includes a plurality of resin layers. At least one layer of the resin layers is formed of a uniaxially stretched resin sheet (3) or a biaxially stretched resin sheet (3) constituted of a thermoplastic resin composition. The thermoplastic resin composition is produced by adding an inorganic pigment vesicle to a polyolefin-based resin. The inorganic pigment vesicle is produced by including an inorganic pigment in a vesicle having a monolayer outer membrane. The uniaxially stretched resin sheet (3) and the biaxially stretched resin sheet (3) have a value of a dichroic ratio R of R?0.3.Type: ApplicationFiled: September 2, 2016Publication date: August 30, 2018Inventors: Shinichi MIYAMOTO, Masamitsu NAGAHAMA, Akira SATO, Masatoshi TAKAHASHI
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Patent number: 10026341Abstract: Provided are a label, a top layer material formed on a printing medium, an information-bearing medium, a solid fuel and a wristband clip having the function of absorbing carbon dioxide, and carbon dioxide reduction methods using the same. Provided are labels 101, 120, 130 and 140, top layer materials formed on a printing medium 201, 246 and 266, information-bearing media 301, 330, 350 and 360, a solid fuel 401, and a wristband clip 510, to which a new carbon dioxide absorbent is added. Provided are also carbon dioxide reduction methods of absorbing carbon dioxide by burning the same.Type: GrantFiled: October 10, 2016Date of Patent: July 17, 2018Assignee: SATO HOLDINGS KABUSHIKI KAISHAInventors: Hiromi Yamamuro, Yoshihito Fujii, Masamitsu Nagahama, Shigeru Kido, Akira Sato, Masahiko Abe
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Publication number: 20180186132Abstract: A decorated sheet according to the present disclosure consists of a plurality of resin layers, wherein at least one of the resin layers comprises a nano-sized additive.Type: ApplicationFiled: November 11, 2015Publication date: July 5, 2018Applicant: TOPPAN PRINTING CO., LTD.Inventors: Hisashi IKEDA, Tatsuhiko FURUTA, Shinichi MIYAMOTO, Masamitsu NAGAHAMA, Akira SATO, Masatoshi TAKAHASHI
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Publication number: 20180186131Abstract: The present invention provides a decorative sheet having higher designability and weatherability over a long period of time by adding an organic ultraviolet absorbent and an inorganic ultraviolet absorbent each provided as organic ultraviolet absorbent vesicles and inorganic ultraviolet absorbent vesicles, respectively, to at least one of a top coat layer and a transparent resin layer. A decorative sheet of an aspect of the present invention includes a top coat layer as an outermost layer, and a transparent resin layer as an underlayer of the top coat layer, wherein an organic ultraviolet absorbent and an inorganic ultraviolet absorbent are added to at least one of the top coat layer and the transparent resin layer, and the organic ultraviolet absorbent and the inorganic ultraviolet absorbent are each encapsulated in vesicles having a monolayer outer membrane and provided as organic ultraviolet absorbent vesicles and inorganic ultraviolet absorbent vesicles, respectively.Type: ApplicationFiled: March 1, 2018Publication date: July 5, 2018Applicant: TOPPAN PRINTING CO., LTD.Inventors: Mami KUDO, Eiichi HIGASHIKAWA, Masamitsu NAGAHAMA, Akira SATO, Masatoshi TAKAHASHI
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Publication number: 20180186135Abstract: The present invention provides a decorative sheet comprising a transparent resin layer having good scratch resistance, good post-processing resistance, and high transparency, and a method of manufacturing the same. The decorative sheet according to one aspect of the present invention comprises at least a transparent resin layer formed by adding to a transparent olefin-based resin nucleating agent vesicles which are vesicles having a single layer outer membrane and containing a nucleating agent, and the Martens hardness of the transparent resin layer is 40 N/mm2 or higher.Type: ApplicationFiled: February 27, 2018Publication date: July 5, 2018Applicant: TOPPAN PRINTING CO., LTD.Inventors: Eiichi HIGASHIKAWA, Masamitsu NAGAHAMA, Akira SATO, Masatoshi TAKAHASHI