Patents by Inventor Shigeru Yamaki
Shigeru Yamaki 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: 20240102908Abstract: This optical cell for sedimentation analysis has a pair of opposing surfaces through which light is transmitted, and two polarizing plates, in which each of the two polarizing plates is disposed in a crossed Nicols state on each of the inner surfaces of the pair of opposing surfaces.Type: ApplicationFiled: December 15, 2021Publication date: March 28, 2024Applicant: RESONAC CORPORATIONInventors: Yasunao MIYAMURA, Ayako NISHIOKA, Yasushi KADOWAKI, Kuniaki YAMATAKE, Masanao HARA, Shigeru YAMAKI, Hideki OHATA
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Publication number: 20240060888Abstract: The present method for evaluating an orientation of silver nanowires is a method for measuring an orientation of silver nanowires included in a polyvinyl alcohol film, the method including measuring, using linearly polarized near-infrared light, a first transmittance T1 for polarized light perpendicular to an orientation direction of silver nanowires and a second transmittance T0 for polarized light parallel to the orientation direction of the silver nanowires in a polyvinyl alcohol film including the silver nanowires, and determining an orientation to be high in a case where a ratio (T1/T0) of the first transmittance T1 to the second transmittance T0 is greater than 1, and determining the orientation to be low in a case where the ratio is close to 1.Type: ApplicationFiled: December 15, 2021Publication date: February 22, 2024Applicant: Resonac CorporationInventors: Yasunao MIYAMURA, Yasushi KADOWAKI, Kuniaki YAMATAKE, Masanao HARA, Shigeru YAMAKI, Hideki OHATA
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Publication number: 20240059832Abstract: Provided is a transparent conducting film laminate suitable for three-dimensional molding having a curved surface. A transparent conducting film laminate comprising: a transparent substrate made of a transparent thermoplastic resin film, a transparent conducting film formed on at least one main face of the transparent substrate, and containing a binder resin and a metal nanowire, and a protection film formed on the transparent conducting film, and containing a resin component, wherein the binder resin contains at least on kind of poly-N-vinylacetamide, a copolymer containing 70 mol % or more of N-vinylacetamide (NVA) as a monomer unit, and a cellulose-based resin, and 94% by mass or more of the resin component constituting the protection film is derived from a thermoplastic resin.Type: ApplicationFiled: December 24, 2021Publication date: February 22, 2024Applicant: Resonac CorporationInventors: Jun KUWAHARA, Shigeru YAMAKI
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Patent number: 11899038Abstract: An acceleration sensor is provided in which a sensitive color plate is provided between two polarizing plates that are in a crossed Nicol disposition, and a silver nanowire dispersion is disposed between the sensitive color plate and one of the polarizing plates.Type: GrantFiled: December 18, 2020Date of Patent: February 13, 2024Assignee: Resonac CorporationInventors: Yasunao Miyamura, Yasushi Kadowaki, Kuniaki Yamatake, Masanao Hara, Shigeru Yamaki, Hideki Ohata
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Patent number: 11710581Abstract: Provided are a transparent conducting film laminate to which a curl generated during a heating step and after the heating step can be controlled, and a method for processing the same. A transparent conducting film laminate comprises a transparent conducting film 20 and a carrier film 10 stacked thereon, wherein the transparent conducting film 20 comprises a transparent resin film 3, transparent conducting layer 4, and an overcoat layer 5 stacked in this order, the transparent resin film 3 having a thickness T1 of 5 to 25 ?m and being made of an amorphous cycloolefin-based resin, the carrier film 10 is releasably stacked on the other main face, the face opposite to the face having the transparent conducting layer 4, of the transparent resin film 3 with an adhesive agent layer 2 therebetween, and a protection film 1 has a thickness T2 which is 5 times or more of the thickness T1 of the transparent resin film 3 and is 150 ?m or less, and is made of polyester having an aromatic ring in its molecular backbone.Type: GrantFiled: December 24, 2019Date of Patent: July 25, 2023Assignee: SHOWA DENKO K.K.Inventors: Shigeru Yamaki, Shuhei Yoneda
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Patent number: 11685846Abstract: Provided is a transparent conducting film having a preferable optical property, a preferable electrical property, and further, a superior durability of folding. The transparent conducting film comprises a transparent substrate and a transparent conducting layer formed on at least one of main faces of the transparent substrate, wherein the transparent conducting layer contains a binder resin and a conducting fiber, a cut portion of the transparent conducting film has a straightness of 0.050 mm or less. Preferably, the transparent substrate is a resin film having an elongated resin film or cut out from an elongated film, and can be folded in with a folding axis in the direction perpendicular to the longitudinal direction of the elongated resin film.Type: GrantFiled: May 18, 2021Date of Patent: June 27, 2023Assignee: SHOWA DENKO K. K.Inventors: Shigeru Yamaki, Shuhei Yoneda
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Patent number: 11670433Abstract: Provided are a transparent conducting film laminate to which a curl generated during a heating step and after the heating step can be controlled, and a method for processing the same. A transparent conducting film laminate comprises a transparent conducting film 20 and a carrier film 10 stacked thereon, wherein the transparent conducting film 20 comprises a transparent resin film 3, transparent conducting layer 4, and an overcoat layer 5 stacked in this order, the transparent resin film 3 having a thickness T1 of 5 to 25 ?m and being made of an amorphous cycloolefin-based resin, the carrier film 10 is releasably stacked on the other main face, the face opposite to the face having the transparent conducting layer 4, of the transparent resin film 3 with an adhesive agent layer 2 therebetween, and a protection film 1 has a thickness T2 which is 5 times or more of the thickness T1 of the transparent resin film 3 and is 150 ?m or less, and is made of polyester having an aromatic ring in its molecular backbone.Type: GrantFiled: December 24, 2019Date of Patent: June 6, 2023Assignee: SHOWA DENKO K.K.Inventors: Shigeru Yamaki, Shuhei Yoneda
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Publication number: 20230119637Abstract: Provided is a transparent conducting film having a preferable optical property, a preferable electrical property, and further, a superior durability of folding. The transparent conducting film comprises a transparent substrate and a transparent conducting layer formed on at least one of main faces of the transparent substrate, wherein the transparent conducting layer contains a binder resin and a conducting fiber, a cut portion of the transparent conducting film has a straightness of 0.050 mm or less. Preferably, the transparent substrate is a resin film having an elongated resin film or cut out from an elongated film, and can be folded in with a folding axis in the direction perpendicular to the longitudinal direction of the elongated resin film.Type: ApplicationFiled: May 18, 2021Publication date: April 20, 2023Applicant: SHOWA DENKO K.K.Inventors: Shigeru YAMAKI, Shuhei YONEDA
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Publication number: 20230055947Abstract: An acceleration sensor is provided in which a sensitive color plate is provided between two polarizing plates that are in a crossed Nicol disposition, and a silver nanowire dispersion is disposed between the sensitive color plate and one of the polarizing plates.Type: ApplicationFiled: December 18, 2020Publication date: February 23, 2023Applicant: SHOWA DENKO K.K.Inventors: Yasunao MIYAMURA, Yasushi KADOWAKI, Kuniaki YAMATAKE, Masanao HARA, Shigeru YAMAKI, Hideki OHATA
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Publication number: 20230046460Abstract: In a method for producing a high-molecular-weight polymer sheet, when a monomer composition including silver nanowires is polymerized, the monomer composition is allowed to stand in a state in which a thickness direction of the obtained high-molecular-weight polymer sheet before the polymerization is a vertical direction, and the silver nanowires in the monomer composition are oriented in the vertical direction and polymerized.Type: ApplicationFiled: December 18, 2020Publication date: February 16, 2023Applicant: SHOWA DENKO K.K.Inventors: Yasunao MIYAMURA, Yasushi KADOWAKI, Kuniaki YAMATAKE, Masanao HARA, Shigeru YAMAKI, Hideki OHATA
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Publication number: 20230025211Abstract: An evaluation method includes a step of disposing a sensitive color plate between two polarization plates disposed in a crossed Nicols shape, a step of disposing a measurement material that is a transparent material containing a nanowire between any of one polarization plate or the other polarization plate of the polarization plates and the sensitive color plate, a step of making white light incident from a side of one of the disposed polarization plates, a step of observing a color of the measurement material from a side of the other polarization plate, and a step of evaluating an orientation direction of the nanowire from the color of the measurement material obtained by observation.Type: ApplicationFiled: December 18, 2020Publication date: January 26, 2023Applicant: SHOWA DENKO K.K.Inventors: Yasunao MIYAMURA, Yasushi KADOWAKI, Kuniaki YAMATAKE, Masanao HARA, Shigeru YAMAKI, Hideki OHATA
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Publication number: 20230027915Abstract: The present invention provides a production method of a polymerized polymer containing a silver nanowire, including a preparation step of preparing a monomer composition containing the silver nanowire, a polymerization step of performing polymerization of the monomer composition containing the silver nanowire, and a standing step of leaving the monomer composition to stand which is performed between the preparation step and the polymerization step, in which a start of the polymerization step is determined in the standing step based on an orientation state in a vertical direction of the silver nanowire in the monomer composition as an index.Type: ApplicationFiled: December 18, 2020Publication date: January 26, 2023Applicant: SHOWA DENKO K.KInventors: Yasunao MIYAMURA, Yasushi KADOWAKI, Kuniaki YAMATAKE, Masanao HARA, Shigeru YAMAKI, Hideki OHATA
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Patent number: 11538603Abstract: Provided is a transparent conducting film containing metal nanowires, the conducting film having a preferable optical property, electrical property, and having almost no in-plane resistance anisotropy. A method for producing a transparent conducting film provided with a conducting layer containing a metal nanowire and a binder resin, comprising steps of: preparing a coating liquid containing the metal nanowire and the binder resin, and coating the coating liquid on one main face of a transparent substrate, the coating step being performed by a bar-coater with a bar which has a bar surface constituted by a material having a friction coefficient of 0.05 to 0.Type: GrantFiled: May 29, 2020Date of Patent: December 27, 2022Assignee: SHOWA DENKO K.K.Inventors: Shigeru Yamaki, Shuhei Yoneda
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Patent number: 11535047Abstract: Provided is a transparent conducting film having a favorable optical property, favorable electrical property, and almost no in-plane resistance anisotropy. A method for producing a transparent conducting film provided with a conducting layer containing a metal nanowire and a binder resin, comprises steps of: preparing a coating liquid containing the metal nanowire and the binder resin, and coating the coating liquid on one main face of a transparent substrate, wherein, in the coating step, a bar-coat printing method is performed using a bar provided with a groove having a pitch (P) and a depth (H) which satisfy a ratio P/H of 5 to 30.Type: GrantFiled: May 29, 2020Date of Patent: December 27, 2022Assignee: SHOWA DENKO K.K.Inventor: Shigeru Yamaki
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Publication number: 20220371310Abstract: Provided are a transparent conducting film laminate capable of controlling a curl during and after the heating, and a processing method thereof. A transparent conducting film laminate comprising a transparent conducting film 10, and a carrier film 1 stacked on the transparent conducting film 10, wherein the carrier film is a polycarbonate film having no adhesive agent layer, the transparent conducting film 10 comprises a transparent resin film 2, a transparent conducting layer 3 containing metal nanowires and a binder resin, and an overcoat layer 4 stacked in this order, the transparent resin film 2 is made of an amorphous cycloolefin-based resin, and the carrier film to be releasably stacked on a main face of the transparent conducting film 2, the main face being opposite to the face on which the transparent conducting layer 3 is stacked.Type: ApplicationFiled: October 13, 2020Publication date: November 24, 2022Applicant: SHOWA DENKO K.K.Inventors: Shigeru YAMAKI, Shuhei YONEDA
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Publication number: 20220344072Abstract: Provided is a transparent conducting film containing metal nanowires, the conducting film having a preferable optical property, electrical property, and having almost no in-plane resistance anisotropy. A method for producing a transparent conducting film provided with a conducting layer containing a metal nanowire and a binder resin, comprising steps of: preparing a coating liquid containing the metal nanowire and the binder resin, and coating the coating liquid on one main face of a transparent substrate, the coating step being performed by a bar-coater with a bar which has a bar surface constituted by a material having a friction coefficient of 0.05 to 0.Type: ApplicationFiled: May 29, 2020Publication date: October 27, 2022Applicant: SHOWA DENKO K.K.Inventors: Shigeru YAMAKI, Shuhei YONEDA
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Publication number: 20220230774Abstract: Provided are a transparent conducting film laminate to which a curl generated during a heating step and after the heating step can be controlled, and a method for processing the same. A transparent conducting film laminate comprises a transparent conducting film 20 and a carrier film 10 stacked thereon, wherein the transparent conducting film 20 comprises a transparent resin film 3, transparent conducting layer 4, and an overcoat layer 5 stacked in this order, the transparent resin film 3 having a thickness T1 of 5 to 25 ?m and being made of an amorphous cycloolefin-based resin, the carrier film 10 is releasably stacked on the other main face, the face opposite to the face having the transparent conducting layer 4, of the transparent resin film 3 with an adhesive agent layer 2 therebetween, and a protection film 1 has a thickness T2 which is 5 times or more of the thickness T1 of the transparent resin film 3 and is 150 ?m or less, and is made of polyester having an aromatic ring in its molecular backbone.Type: ApplicationFiled: December 24, 2019Publication date: July 21, 2022Applicant: SHOWA DENKO K.K.Inventors: Shigeru YAMAKI, Shuhei YONEDA
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Publication number: 20220203738Abstract: Provided is a transparent conducting film having a favorable optical property, favorable electrical property, and almost no in-plane resistance anisotropy. A method for producing a transparent conducting film provided with a conducting layer containing a metal nanowire and a binder resin, comprises steps of: preparing a coating liquid containing the metal nanowire and the binder resin, and coating the coating liquid on one main face of a transparent substrate, wherein, in the coating step, a bar-coat printing method is performed using a bar provided with a groove having a pitch (P) and a depth (H) which satisfy a ratio P/H of 5 to 30.Type: ApplicationFiled: May 29, 2020Publication date: June 30, 2022Applicant: SHOWA DENKO K.K.Inventor: Shigeru YAMAKI
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Publication number: 20220139591Abstract: Provided is a transparent conductive film having a preferable optical property and an electric property, and in addition, a superior durability of folding. A transparent conductive film comprising: a transparent substrate, a transparent conductive layer having a binder resin and conductive fibers and formed on at least one of the main faces of the transparent substrate, and a protective layer formed on the transparent conductive layer, wherein the protective layer is a cured layer of a curable resin composite and has a thickness of more than 100 nm and 1 ?m or less.Type: ApplicationFiled: February 17, 2020Publication date: May 5, 2022Applicant: SHOWA DENKO K.K.Inventors: Shigeru YAMAKI, Shuhei YONEDA, Masahiko TOBA
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Patent number: 11247271Abstract: A method for producing metal nanowire of small diameter and long length. In the method for producing a metal nanowire, a first solution containing an ionic derivative and a polyol as a solvent are kept at 80-200° C., and a second solution containing a metal salt and a polyol as a solvent is supplied into the first solution so that the ratio between the number of moles of metal atoms in the metal salt supplied in one minute and the total number of moles of halogen atoms in the ionic derivative in the first solution (the number of moles of metal atoms in the metal salt supplied in one minute/the total number of moles of halogen atoms in the ionic derivative) is less than 10. It is preferable that the ionic derivative is a quaternary ammonium halide and the metal salt is silver nitrate.Type: GrantFiled: September 27, 2016Date of Patent: February 15, 2022Assignee: SHOWA DENKO K.K.Inventors: Masanao Hara, Shigeru Yamaki, Hiroshi Uchida