Patents by Inventor Hideaki YAMBE
Hideaki YAMBE 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: 20220380560Abstract: Embodiments provide a multilayer film, including: a first acrylic resin layer (?1), an aromatic polycarbonate resin layer (?), and a second acrylic resin layer (?2), where the first acrylic resin layer (?1), the aromatic polycarbonate resin layer (?), and the second acrylic resin layer (?2) are directly laminated in the stated order, where a glass transition temperature of an aromatic polycarbonate resin constituting the aromatic polycarbonate resin layer (?) is 100-140° C., and where the following formulae (4-1) and (4-2) and the following properties (i) and (ii) are satisfied: (T??T?1)?30 . . . (4-1), (T??T?2)?30 . . .Type: ApplicationFiled: August 11, 2022Publication date: December 1, 2022Applicant: RIKEN TECHNOS CORPORATIONInventors: Hideaki YAMBE, Kohei NAKASHIMA
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Patent number: 11465323Abstract: Embodiments provide a method for producing a multilayer film, the method including: (A) a step for continuously coextruding from a T die (3) a molten film (4) of a multilayer film in which a first acrylic resin layer (?1), an aromatic polycarbonate resin layer (?), and a second acrylic resin layer (?2) are directly laminated in the stated order using a coextrusion apparatus; (B) a step for feeding and pressing the molten film of the multilayer film between a first mirror surface body (5) that rotates or revolves and a second mirror surface body (6) that rotates or revolves so that the first acrylic resin layer (?1) is disposed on the first-mirror-surface-body side; and (C) a step for holding the pressed multilayer film against the first mirror surface body and sends the pressed multilayer film to the subsequent third mirror surface body (8) that rotates or revolves, where TR1 (surface temperature of first mirror surface body), TR2 (surface temperature of second mirror surface body), T?1 (glass transition tempType: GrantFiled: July 25, 2017Date of Patent: October 11, 2022Inventors: Hideaki Yambe, Kohei Nakashima
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Patent number: 11396165Abstract: Embodiments provide a multilayer film in which: a first acrylic resin layer (?1), an aromatic polycarbonate resin layer (?), and a second acrylic resin layer (?2) are directly laminated in the stated order; the aromatic polycarbonate resin constituting the aromatic polycarbonate resin layer (?) is a product of ester exchange between a polycarbonic acid ester of an aromatic dihydroxy compound and a low-crystalline or amorphous aromatic polyester; and the relationships (T??T?1)?30 and (T??T?2)?30 (where T?1 is the glass transition temperature of the acrylic resin constituting the first acrylic resin layer (?1), T?2 is the glass transition temperature of the acrylic resin constituting the second acrylic resin layer (?2), T? is the glass transition temperature of the aromatic polycarbonate resin constituting the aromatic polycarbonate resin layer (?), and all of the temperatures are measured in degrees Celsius) are satisfied.Type: GrantFiled: May 18, 2018Date of Patent: July 26, 2022Inventors: Hideaki Yambe, Kohei Nakashima
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Patent number: 11065851Abstract: One embodiment provides a multilayer hard coating film which sequentially includes, from the superficial layer side, a first hard coating and a resin film, and wherein: the first hard coating is formed from a coating material that contains a specific amount of (A) a polyfunctional (meth)acrylate and a specific amount of (B) a water repellent agent, while containing no inorganic particles; and the resin film includes at least one layer of (?) an acrylic resin that contains 50-95% by mole of a structural unit derived from methyl methacrylate and 50-5% by mole of a structural unit derived from vinyl cyclohexane when the total of the structural units derived from polymerizable monomers is taken as 100% by mole.Type: GrantFiled: February 5, 2016Date of Patent: July 20, 2021Inventors: Kohei Nakashima, Hideaki Yambe, Nozomu Washio, Taketo Hashimoto
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Publication number: 20210122146Abstract: Embodiments provide a multilayer film in which: a first acrylic resin layer (?1), an aromatic polycarbonate resin layer (?), and a second acrylic resin layer (?2) are directly laminated in the stated order; the aromatic polycarbonate resin constituting the aromatic polycarbonate resin layer (?) is a product of ester exchange between a polycarbonic acid ester of an aromatic dihydroxy compound and a low-crystalline or amorphous aromatic polyester; and the relationships (T??T?1)?30 and (T??T?2)?30 (where Tal is the glass transition temperature of the acrylic resin constituting the first acrylic resin layer (?1), T?2 is the glass transition temperature of the acrylic resin constituting the second acrylic resin layer (?2), T? is the glass transition temperature of the aromatic polycarbonate resin constituting the aromatic polycarbonate resin layer (?), and all of the temperatures are measured in degrees Celsius) are satisfied.Type: ApplicationFiled: May 18, 2018Publication date: April 29, 2021Applicant: RIKEN TECHNOS CORPORATIONInventors: Hideaki YAMBE, Kohei NAKASHIMA
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Publication number: 20200223205Abstract: Embodiments provide a method for producing a multilayer film, the method including: (A) a step for continuously coextruding from a T die (3) a molten film (4) of a multilayer film in which a first acrylic resin layer (?1), an aromatic polycarbonate resin layer (?), and a second acrylic resin layer (?2) are directly laminated in the stated order using a coextrusion apparatus; (B) a step for feeding and pressing the molten film of the multilayer film between a first mirror surface body (5) that rotates or revolves and a second mirror surface body (6) that rotates or revolves so that the first acrylic resin layer (?1) is disposed on the first-mirror-surface-body side; and (C) a step for holding the pressed multilayer film against the first mirror surface body and sends the pressed multilayer film to the subsequent third mirror surface body (8) that rotates or revolves, where TR1 (surface temperature of first mirror surface body), TR2 (surface temperature of second mirror surface body), T?1 (glass transition tempType: ApplicationFiled: July 25, 2017Publication date: July 16, 2020Applicant: RIKEN TECHNOS CORPORATIONInventors: Hideaki YAMBE, Kohei NAKASHIMA
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Publication number: 20180072029Abstract: One embodiment provides a multilayer hard coating film which sequentially includes, from the superficial layer side, a first hard coating and a resin film, and wherein: the first hard coating is formed from a coating material that contains a specific amount of (A) a polyfunctional (meth)acrylate and a specific amount of (B) a water repellent agent, while containing no inorganic particles; and the resin film includes at least one layer of (?) an acrylic resin that contains 50-95% by mole of a structural unit derived from methyl methacrylate and 50-5% by mole of a structural unit derived from vinyl cyclohexane when the total of the structural units derived from polymerizable monomers is taken as 100% by mole.Type: ApplicationFiled: February 5, 2016Publication date: March 15, 2018Applicant: RIKEN TECHNOS CORPORATIONInventors: Kohei NAKASHIMA, Hideaki YAMBE, Nozomu WASHIO, Taketo HASHIMOTO
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Publication number: 20180009959Abstract: According to at least one embodiment, there is provided a hard coat laminate film having a total light transmittance of 80% or more and having (?) a hard coat on at least one surface of (?) an aromatic-polycarbonate resin film containing 30 mol % or more of a structural unit derived from 4,4?-(3,3,5-trimethylcyclohexane-1,1-diyl)diphenol when the total of the structural units derived from aromatic dihydroxy compounds is 100 mol %. According to another embodiment, there is provided a hard coat laminate film having a total light transmittance of 80% or more and having (?) a hard coat on at least one surface of a transparent laminate film constituted of (?) an aromatic-polycarbonate resin film containing 30 mol % or more of a structural unit derived from 4,4?-(3,3,5-trimethylcyclohexane-1,1-diyl)diphenol, when the total of the structural units derived from aromatic dihydroxy compounds is 100 mol %, and (?) a poly(meth)acrylimide resin film.Type: ApplicationFiled: October 2, 2015Publication date: January 11, 2018Applicant: RIKEN TECHNOS CORPORATIONInventors: Kohei NAKASHIMA, Hideaki YAMBE