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公开(公告)号:US20200086549A1
公开(公告)日:2020-03-19
申请号:US16539314
申请日:2019-08-13
Applicant: CASIO COMPUTER CO., LTD.
Inventor: Hideki TAKAHASHI
Abstract: In a three-dimensional object formed by bending and deforming a sheet-like base material made of a thermoplastic resin at a ridge line, a surface of the base material bent and oriented outward at least at the ridge line is covered with a thermal expansion layer that expands when heated to a thermal deformation temperature of the thermoplastic resin or a higher temperature, and the thermal expansion layer is expanded at the ridge line.
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12.
公开(公告)号:US20190381702A1
公开(公告)日:2019-12-19
申请号:US16437987
申请日:2019-06-11
Applicant: Casio Computer Co., Ltd.
Inventor: Hideki TAKAHASHI
IPC: B29C35/08
Abstract: A formable resin sheet includes a thermally expansive layer formed on a first side of a base and including a thermally expandable material. A breaking strength of the thermally expansive layer is greater than a peeling strength of the thermally expansive layer from the base, and the thermally expansive layer is peelable from the base. The formable resin sheet can easily be shaped by using a thermal conversion layer to cause the thermally expansive layer to distend and cause the base to deform as the thermally expansive layer distends. The thermally expansive layer can be removed after the shaping of the base.
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公开(公告)号:US20190381701A1
公开(公告)日:2019-12-19
申请号:US16436808
申请日:2019-06-10
Applicant: Casio Computer Co., Ltd.
Inventor: Hideki TAKAHASHI
IPC: B29C35/08
Abstract: A resin sheet production method includes a preparation step of preparing a resin molding sheet including a base and a thermally expansive layer that is formed on one main surface of the base, the thermally expansive layer including a thermally expandable material; a heat conversion layer forming step of forming a heat conversion layer that converts electromagnetic waves to heat on at least one of the first main surface of the resin molding sheet or a second main surface on a side opposite to the first main surface; a pre-heating step of heating the resin molding sheet on which the heat conversion layer is formed to a temperature that is lower than an expansion starting temperature at which the thermally expandable material starts to expand; and a main heating step of irradiating the heat conversion layer of the resin molding sheet that is heated in the pre-heating step with the electromagnetic waves to cause the heat conversion layer to distend, thereby causing the base to deform and forming a shaped object on the resin molding sheet.
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公开(公告)号:US20200298546A1
公开(公告)日:2020-09-24
申请号:US16804222
申请日:2020-02-28
Applicant: CASIO COMPUTER CO., LTD.
Inventor: Hideki TAKAHASHI , Satoshi KUROSAWA , Toshihiro OGAWA
Abstract: A method of producing a shaped object includes preparing a formation sheet that includes a base and a thermally expansive layer that is laminated on a first main surface of the base, the thermally expansive layer containing a binder and a thermal expansion material; laminating, onto a second main surface on a side opposite to the first main surface of the base or onto the thermally expansive layer, a thermal conversion layer in predetermined pattern, the thermal conversion layer converting first electromagnetic waves into heat; and causing the thermally expansive layer to expand in a pattern that corresponds to the predetermined pattern by irradiating the formation sheet on which the thermal conversion layer is laminated with the first electromagnetic waves and second electromagnetic waves that cause the binder to become cross-linked.
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公开(公告)号:US20200094521A1
公开(公告)日:2020-03-26
申请号:US16569092
申请日:2019-09-12
Applicant: Casio Computer Co., Ltd.
Inventor: Hideki TAKAHASHI
Abstract: A shaped object includes a thermally expandable sheet including (i) a base, (ii) a thermal expansion layer disposed on a first surface of the base and including a thermally expandable material, and (iii) a thermal conversion member disposed on at least one of a second surface of the base or the thermal expansion layer, and including a thermal conversion material for conversion of electromagnetic waves into heat. The thermal conversion member further includes thermal conversion layers disposed on an entire region corresponding to an expansion region for expansion of the thermal expansion layer. At least part of one of the thermal conversion layers is disposed at a location separated from an adjacent other thermal conversion layer. Upon expansion of the thermal expansion layer, (i) the thermal expansion layer partially peels away from the thermal expansion layer in a region where the thermal conversion layer is disposed, and (ii) the thermal expansion layer also expands in a region between the one thermal conversion layer and the other thermal conversion layer.
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16.
公开(公告)号:US20200047426A1
公开(公告)日:2020-02-13
申请号:US16526220
申请日:2019-07-30
Applicant: Casio Computer Co., Ltd.
Inventor: Hideki TAKAHASHI
Abstract: A production method for a shaped object includes preparing a formable resin sheet that includes a base made from a resin, and a thermally expansive layer provided on a first side of the base and containing a thermally expandable material, a thermal conversion layer forming step of forming a thermal conversion layer that contains an electromagnetic wave heat conversion material that converts electromagnetic waves to heat on a first side of the formable resin sheet, an electrically conductive layer forming step of forming an electrically conductive layer on a second side of the formable resin sheet, and an irradiating step of, after forming the thermal conversion layer and the electrically conductive layer, irradiating the thermal conversion layer with the electromagnetic waves to cause the thermal expansive layer to distend and cause the base to deform in accordance with the distension of the thermal expansive layer. The thermal conversion layer and the electrically conductive layer are formed such that at least a portion of the electrically conductive layer is opposite at least a portion of the thermal conversion layer, with the base and the thermally expansive layer interposed therebetween.
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公开(公告)号:US20200031094A1
公开(公告)日:2020-01-30
申请号:US16512422
申请日:2019-07-16
Applicant: CASIO COMPUTER CO., LTD.
Inventor: Hideki TAKAHASHI
Abstract: A thermally expandable sheet includes a base, an intermediate layer provided on a first surface of the base, the intermediate layer including a thermally expandable material, and a thermally expansive layer provided on the intermediate layer. The peeling strength between the intermediate layer and the base is less than the peeling strength between the thermally expansive layer and the intermediate layer, and the intermediate layer and the thermally expansive layer are peelable from the base.
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18.
公开(公告)号:US20180370092A1
公开(公告)日:2018-12-27
申请号:US16018342
申请日:2018-06-26
Applicant: CASIO COMPUTER CO., LTD.
Inventor: Yoshimune MOTOYANAGI , Yuji HORIUCHI , Satoshi MITSUI , Hideki TAKAHASHI
Abstract: A thermally expandable sheet includes: a thermally expansive layer formed on a one surface of a base; a first ink receiving layer that is provided on the thermally expansive layer for receiving ink; a film provided on the first ink receiving layer; and a second ink receiving layer that is provided on the film for receiving ink; wherein the first ink receiving layer is formed of a material that provides a texture a different from a texture of the second ink receiving layer.
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公开(公告)号:US20220152997A1
公开(公告)日:2022-05-19
申请号:US17665050
申请日:2022-02-04
Applicant: CASIO COMPUTER CO., LTD.
Inventor: Yuji HORIUCHI , Yoshimune MOTOYANAGI , Hideki TAKAHASHI , Satoshi MITSUI
Abstract: A thermally expandable sheet in which a thermally expansive layer that contains a thermally expandable material is formed on one side of a base, and where the thermally expansive layer is distended, the base deforms following distension of the thermally expansive layer and the base deforms into an embossed shape.
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公开(公告)号:US20190329577A1
公开(公告)日:2019-10-31
申请号:US16389521
申请日:2019-04-19
Applicant: CASIO COMPUTER CO., LTD.
Inventor: Hideki TAKAHASHI , Yuji HORIUCHI , Yoshimune MOTOYANAGI , Satoshi MITSUI
Abstract: A thermally expandable sheet includes a base, a thermally expansive layer, and a color adjustment layer. The thermally expansive layer is provided on a first side of the base and includes a thermally expandable material that distends in accordance with an amount of heat absorbed, the heat being generated from a thermal conversion layer that includes a thermal conversion material that converts electromagnetic waves to heat. The color adjustment layer is provided on at least one of the thermally expansive layer and a second side of the base and includes a color adjusting agent. When the thermal conversion layer is provided on the color adjustment layer, the color adjustment layer reduces a visual difference in color between a first region where the thermal conversion layer is provided and a second region where the thermal conversion layer is not provided.
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