Patents by Inventor Atsushi Yaginuma
Atsushi Yaginuma 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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Patent number: 11827799Abstract: Provided is an ultraviolet curable silicone composition capable of being ejected via inkjet ejection. The composition of the invention is an ultraviolet curable silicone composition comprising: (A) an organopolysiloxane represented by the following general formula (1) wherein each R1 independently represents a group selected from a monovalent aliphatic hydrocarbon group having 1 to 10 carbon atoms, an acryloyl group, a methacryloyl group, an alkyl acrylate group and an alkyl methacrylate group, while the component (A) has per molecule at least two groups selected from an acryloyl group, a methacryloyl group, an alkyl acrylate group and an alkyl methacrylate group; n represents a number satisfying 10?n?1,000; (B) a monofunctional (meth)acrylate compound having no siloxane structure; and/or (C) a multifunctional (meth)acrylate compound having no siloxane structure; and (D) a photopolymerization initiator.Type: GrantFiled: December 30, 2021Date of Patent: November 28, 2023Assignee: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Nobuaki Matsumoto, Taichi Kitagawa, Atsushi Yaginuma, Masaaki Shirota
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Patent number: 11370869Abstract: According to the present invention, an ultraviolet curable silicone composition for stereolithography, which contains (A) an organopolysiloxane that has two groups represented by formula (1) (wherein each R1 independently represents a monovalent hydrocarbon group having 1-20 carbon atoms; R2 represents an oxygen atom or the like; R3 represents an acryloyloxyalkyl group or the like; p represents a number satisfying 0?p?10; and a represents a number satisfying 1?a?3) in each molecule, (B) an organopolysiloxane resin that is composed of (a) a unit represented by formula (2) (wherein R1-R3, a and p are as defined above), (b) an R43SiO1/2 unit (wherein each R4 independently represents a monovalent hydrocarbon group having 1-10 carbon atoms) and (c) an SiO4/2 unit, and wherein the molar ratio of the total of the unit (a) and the unit (b) to the unit (c) is within the range of 0.6-1.Type: GrantFiled: July 11, 2019Date of Patent: June 28, 2022Assignee: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Kohei Otake, Nobuaki Matsumoto, Taichi Kitagawa, Toshiyuki Ozai, Atsushi Yaginuma
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Publication number: 20220119663Abstract: Provided is an ultraviolet curable silicone composition capable of being ejected via inkjet ejection. The composition of the invention is an ultraviolet curable silicone composition comprising: (A) an organopolysiloxane represented by the following general formula (1) wherein each R1 independently represents a group selected from a monovalent aliphatic hydrocarbon group having 1 to 10 carbon atoms, an acryloyl group, a methacryloyl group, an alkyl acrylate group and an alkyl methacrylate group, while the component (A) has per molecule at least two groups selected from an acryloyl group, a methacryloyl group, an alkyl acrylate group and an alkyl methacrylate group; n represents a number satisfying 10?n?1,000; (B) a monofunctional (meth)acrylate compound having no siloxane structure; and/or (C) a multifunctional (meth)acrylate compound having no siloxane structure; and (D) a photopolymerization initiator.Type: ApplicationFiled: December 30, 2021Publication date: April 21, 2022Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Nobuaki MATSUMOTO, Taichi KITAGAWA, Atsushi YAGINUMA, Masaaki SHIROTA
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Publication number: 20220106506Abstract: An ultraviolet ray-curable silicone adhesive agent composition comprising (A) a polysiloxane represented by formula (1): (R1SiO3/2)a1(R13SiO1/2)b1(X1O1/2)c1 (wherein R1 represents a monovalent hydrocarbon group wherein a methyl group accounts for 20 mol % or more and an alkenyl group accounts for 0.1 to 50 mol %; X1 represents a hydrogen atom or the like; a1 represents 0.1 to 1; b1 represents 0 to 0.75; and c1 represents 0 to 0.1; and the requirement represented by the formula: a1+b1+c1=1 is satisfied), (B) a polysiloxane represented by formula (2): (R23SiO1/2)a2(R22SiO)b2 (wherein R2 represents a monovalent hydrocarbon group wherein a methyl group accounts for 20 mol % or more and an alkenyl group accounts for 0.01 to 25 mol %; a2 represents 0.001 to 0.67; b2 represents 0.33 to 0.Type: ApplicationFiled: November 26, 2019Publication date: April 7, 2022Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Takeharu TOYOSHIMA, Atsushi YAGINUMA, Toshiyuki OZAI
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Publication number: 20210309782Abstract: According to the present invention, an ultraviolet curable silicone composition for stereolithography, which contains (A) an organopolysiloxane that has two groups represented by formula (1) (wherein each R1 independently represents a monovalent hydrocarbon group having 1-20 carbon atoms; R2 represents an oxygen atom or the like; R3 represents an acryloyloxyalkyl group or the like; p represents a number satisfying 0?p?10; and a represents a number satisfying 1?a?3) in each molecule, (B) an organopolysiloxane resin that is composed of (a) a unit represented by formula (2) (wherein R1-R3, a and p are as defined above), (b) an R43SiO1/2 unit (wherein each R4 independently represents a monovalent hydrocarbon group having 1-10 carbon atoms) and (c) an SiO4/2 unit, and wherein the molar ratio of the total of the unit (a) and the unit (b) to the unit (c) is within the range of 0.6-1.Type: ApplicationFiled: July 11, 2019Publication date: October 7, 2021Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Kohei OTAKE, Nobuaki MATSUMOTO, Taichi KITAGAWA, Toshiyuki OZAI, Atsushi YAGINUMA
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Patent number: 11124680Abstract: An ultraviolet-curable pressure-sensitive silicone adhesive composition which comprises: 100 parts of an organopolysiloxane (A) having, in the molecule, two groups represented by general formula (1) (wherein R1 represents a C1-20 monovalent hydrocarbon group, R2 represents an oxygen atom, etc., R3 represents an acryloyloxyalkyl group, etc., p and a respectively indicate numbers satisfying 0?p?10 and 1?a?3); 1-500 parts of a monofunctional (meth)acrylate compound (B) containing no siloxane structure and/or a polyfunctional (meth)acrylate compound (C) containing no siloxane structure; 1-5,000 parts of an oranopolysiloxane resin (D) comprising R43SiO1/2 units (a) (wherein R4 represents a C1-10 monovalent hydrocarbon group) and SiO4/2 units (b), the (a)/(b) molar ratio being (0.6-1.2)/1; and 0.01-20 parts of a photopolymerization initiator (E). This composition has satisfactory applicability and curability and gives a cured object which, when used as a temporary fixer, has excellent tackiness and strength.Type: GrantFiled: May 7, 2018Date of Patent: September 21, 2021Assignee: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Kohei Otake, Nobuaki Matsumoto, Tsuyoshi Matsuda, Atsushi Yaginuma
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Publication number: 20200325335Abstract: A silicone composition that includes: 100 parts by mass of an organopolysiloxane having the viscosity at 25° C. of 0.01 to 100 Pa·s and two or more alkenyl groups bonded to a silicon atom in one molecule; 1 to 500 parts by mass of a silicone resin of a SiO4/2 unit and a R1SiO3/2 unit; 10 to 500 parts by mass of hydrophobic silica particles in the range of 20 nm to 1,000 nm, and the degree of hydrophobization due to a methanol titrimetric method of 60% or larger; an organohydrogenpolysiloxane having two or more hydrogen atoms bonded to a silicon atom in one molecule, in an amount to provide 0.4 to 5.0 mol of the silicon-bonded hydrogen atoms within the component for every 1 mol of a total of the alkenyl groups bonded to all silicon atoms in the composition; and an effective amount of a platinum group metal catalyst.Type: ApplicationFiled: April 26, 2018Publication date: October 15, 2020Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Taichi KITAGAWA, Nobuaki MATSUMOTO, Kazuyuki MATSUMURA, Atsushi YAGINUMA
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Publication number: 20200131408Abstract: An ultraviolet-curable pressure-sensitive silicone adhesive composition which comprises: 100 parts of an organopolysiloxane (A) having, in the molecule, two groups represented by general formula (1) (wherein R1 represents a C1-20 monovalent hydrocarbon group, R2 represents an oxygen atom, etc., R3 represents an acryloyloxyalkyl group, etc., p and a respectively indicate numbers satisfying 0?p?10 and 1?a?3); 1-500 parts of a monofunctional (meth)acrylate compound (B) containing no siloxane structure and/or a polyfunctional (meth)acrylate compound (C) containing no siloxane structure; 1-5,000 parts of an oranopolysiloxane resin (D) comprising R43SiO1/2 units (a) (wherein R4 represents a C1-10 monovalent hydrocarbon group) and SiO4/2 units (b), the (a)/(b) molar ratio being (0.6-1.2)/1; and 0.01-20 parts of a photopolymerization initiator (E). This composition has satisfactory applicability and curability and gives a cured object which, when used as a temporary fixer, has excellent tackiness and strength.Type: ApplicationFiled: May 7, 2018Publication date: April 30, 2020Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Kohei OTAKE, Nobuaki MATSUMOTO, Tsuyoshi MATSUDA, Atsushi YAGINUMA
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Publication number: 20190233670Abstract: Provided is an ultraviolet curable silicone composition capable of being ejected via inkjet ejection. The composition of the invention is an ultraviolet curable silicone composition comprising: (A) an organopolysiloxane represented by the following general formula (1) wherein each R1 independently represents a group selected from a monovalent aliphatic hydrocarbon group having 1 to 10 carbon atoms, an acryloyl group, a methacryloyl group, an alkyl acrylate group and an alkyl methacrylate group, while the component (A) has per molecule at least two groups selected from an acryloyl group, a methacryloyl group, an alkyl acrylate group and an alkyl methacrylate group; n represents a number satisfying 10?n?1,000; (B) a monofunctional (meth)acrylate compound having no siloxane structure; and/or (C) a multifunctional (meth)acrylate compound having no siloxane structure; and (D) a photopolymerization initiator.Type: ApplicationFiled: May 31, 2017Publication date: August 1, 2019Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Nobuaki MATSUMOTO, Taichi KITAGAWA, Atsushi YAGINUMA, Masaaki SHIROTA
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Publication number: 20170275406Abstract: A UV curable silicone composition comprises: (A) 100 parts by mass of an organopolysiloxane represented by formula (1) wherein n represents a number satisfying 1?n?100, Ar represents an aromatic group, each of F1 and F2 is selected from groups of formulae (2) and (3), and a ratio of the number of terminal groups of the formula (3) to a total number of all the terminal groups is not lower than 20%, wherein each R1 represents a monovalent hydrocarbon group having 1 to 20 carbon atoms, wherein m represents a number satisfying 0?m?10, each R1 represents a monovalent hydrocarbon group having 1 to 20 carbon atoms, R2 represents an oxygen atom or an alkylene group, and R3 represents an acryloyl group, a methacryloyl group, an acryloyloxyalkyl group or a methacryloyloxyalkyl group; and (B) 0.1 to 10 parts by mass of a photopolymerization initiator.Type: ApplicationFiled: March 21, 2017Publication date: September 28, 2017Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Nobuaki MATSUMOTO, Atsushi YAGINUMA, Toshiyuki OZAI, Shinji KIMURA, Taichi KITAGAWA
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Patent number: 9520522Abstract: A method of manufacturing a solar cell module comprising pressing a first silicone gel sheet provided on a sunlight receiving surface of a solar cell string and a second silicone gel sheet provided on an opposite side sunlight non-receiving surface of the solar cell string in vacuum to encapsulate the solar cell string with the first and second silicone gel sheets; disposing the sunlight receiving surface side of the first silicone gel sheet on one surface of a transparent light receiving panel and disposing butyl rubber in a picture frame-like shape along an outer peripheral portion of a panel where the first silicone gel sheet is not formed and laying the light receiving panel and the light non-receiving panel or back sheet over each other with the silicone gel sheet-encapsulated solar cell string on the inside, and pressing them at 100 to 150° C. in vacuum to press bond the light receiving surface panel and the light non-receiving surface panel or back sheet to each other through the butyl rubber.Type: GrantFiled: October 3, 2013Date of Patent: December 13, 2016Assignee: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Tomoyoshi Furihata, Atsuo Ito, Hiroto Ohwada, Hyung Bae Kim, Sumio Sekiyama, Junichi Tsukada, Atsushi Yaginuma, Naoki Yamakawa
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Publication number: 20160300969Abstract: This silicone adhesive sheet, which has ultraviolet ray shielding properties and is for sealing a solar cell, and which forms a silicone adhesive layer contacting a back surface panel in a solar cell module provided with a light-receiving surface panel, a back surface panel, a silicone adhesive layer contacting both surface panels, and a plurality of solar cells that are sealed by being interposed between both adhesive layers, is characterized by imparting a light transmission rate of no greater than 30% when measuring the light transmission rate at a wavelength of 380 nm to a cured product having a thickness of 2 mm. The silicone adhesive sheet is of a millable type able to capable of extrusion molding, calendering molding, and the like, and modularization using a vacuum laminator is possible of a laminate of a light-receiving surface panel, a silicone adhesive sheet, a solar cell, the silicone adhesive sheet of the present invention, and a back surface panel (back sheet).Type: ApplicationFiled: October 30, 2014Publication date: October 13, 2016Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Naoki YAMAKAWA, Minoru IGARASHI, Atsushi YAGINUMA, Tomoyoshi FURIHATA, Hiroto OHWADA, Junichi TSUKADA, Atsuo ITO
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Patent number: 9385253Abstract: A method of manufacturing a solar cell module comprising adhering a first silicone gel sheet to one surface of a transparent light receiving panel to be a sunlight incidence surface; adhering a second silicone gel sheet to one surface of a light non-receiving panel or back sheet on the side opposite to the sunlight incidence surface; disposing a solar cell string on the first silicone gel sheet of the light receiving panel, and disposing butyl rubber in a picture frame-like shape along an outer peripheral region of a panel where either of the silicone gel sheets are not formed; and laying the light receiving panel and the light non-receiving panel or back sheet over each other with the silicone gel sheets on the inside, and pressing them at 100 to 150° C. in vacuum to encapsulate the solar cell string with the silicone gel sheets and press bond the light receiving panel and the light non-receiving panel or back sheet to each other through the butyl rubber.Type: GrantFiled: October 3, 2013Date of Patent: July 5, 2016Assignee: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Tomoyoshi Furihata, Atsuo Ito, Hiroto Ohwada, Hyung Bae Kim, Sumio Sekiyama, Junichi Tsukada, Atsushi Yaginuma, Naoki Yamakawa
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Patent number: 9299875Abstract: A solar cell module is manufactured by encapsulating a solar cell matrix comprising a plurality of electrically connected solar cell components between a transparent panel and a backsheet with a resin. The method involves (i) embossing opposite surfaces of a green silicone rubber sheet, (ii) arranging a transparent panel (13a), silicone rubber sheet (11), solar cell matrix (14), silicone rubber sheet (11), and backsheet (13b) to form a multilayer assembly, and (iii) heating and compressing the assembly for vacuum lamination for establishing a seal around the solar cell matrix.Type: GrantFiled: August 18, 2014Date of Patent: March 29, 2016Assignee: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Tomoyoshi Furihata, Hiroto Ohwada, Junichi Tsukada, Atsuo Ito, Atsushi Yaginuma, Naoki Yamakawa, Minoru Igarashi
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Publication number: 20150287860Abstract: A solar cell module is constructed from light-receiving surface and back surface panels, a solar cell matrix comprising a plurality of solar cells sandwiched between the panels, and a silicone encapsulant layer for encapsulating the solar cell matrix. A silicone encapsulant composition is to form the silicone encapsulant layer that has a storage elastic modulus of 1-300 MPa in a temperature range of ?40° C. to 85° C.Type: ApplicationFiled: April 2, 2015Publication date: October 8, 2015Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Junichi Tsukada, Tomoyoshi Furihata, Hiroto Ohwada, Atsuo Ito, Naoki Yamakawa, Atsushi Yaginuma
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Publication number: 20150064831Abstract: A solar cell module is manufactured by encapsulating a solar cell matrix comprising a plurality of electrically connected solar cell components between a transparent panel and a backsheet with a resin. The method involves (i) embossing opposite surfaces of a green silicone rubber sheet, (ii) arranging a transparent panel (13a), silicone rubber sheet (11), solar cell matrix (14), silicone rubber sheet (11), and backsheet (13b) to form a multilayer assembly, and (iii) heating and compressing the assembly for vacuum lamination for establishing a seal around the solar cell matrix.Type: ApplicationFiled: August 18, 2014Publication date: March 5, 2015Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Tomoyoshi Furihata, Hiroto Ohwada, Junichi Tsukada, Atsuo Ito, Atsushi Yaginuma, Naoki Yamakawa, Minoru Igarashi
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Publication number: 20150000738Abstract: A solar cell module is provided comprising a first substrate (1a), a thin-film solar cell (2) comprising a metal electrode layer, a photoelectric conversion layer, and a light-transmissive electrode layer disposed on the first substrate (1a), a transparent second substrate (1b) opposed to the solar cell on the first substrate, a light-transmissive silicone gel layer (3) interposed between the first and second substrates, and a seal (4?) of a water vapor non-permeable, rubber-based thermoplastic sealing material surrounding the outer periphery of the silicone gel layer. The module has long-term reliability and high efficiency.Type: ApplicationFiled: June 17, 2014Publication date: January 1, 2015Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Atsuo Ito, Tomoyoshi Furihata, Hiroto Ohwada, Hyung Bae Kim, Atsushi Yaginuma, Naoki Yamakawa, Minoru Igarashi, Masakatsu Hotta, Tsutomu Nakamura
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Publication number: 20140099746Abstract: A method of manufacturing a solar cell module includes pressing a first silicone gel sheet provided on a sunlight receiving surface and a second silicone gel sheet provided on an opposite side sunlight non-receiving surface in vacuum to encapsulate the solar cell string with the first and second silicone gel sheets; disposing the sunlight receiving side of the first silicone gel sheet on one surface of a transparent light receiving panel and disposing butyl rubber in a picture frame-like shape along an outer peripheral portion of the first silicone gel sheet and laying the light receiving panel and the light non-receiving panel or back sheet over each other with the silicone gel sheet-encapsulated solar cell string on the inside, and pressing them at 100 to 150° C. in vacuum to press bond the light receiving panel and the non-receiving panel to each other through the butyl rubber.Type: ApplicationFiled: October 3, 2013Publication date: April 10, 2014Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Tomoyoshi Furihata, Atsuo Ito, Hiroto Ohwada, Hyung Bae Kim, Sumio Sekiyama, Junichi Tsukada, Atsushi Yaginuma, Naoki Yamakawa
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Publication number: 20140096885Abstract: A method of manufacturing a solar cell module includes adhering a first silicone gel sheet to one surface of a transparent light receiving panel to be a sunlight incidence surface; adhering a second silicone gel sheet to one surface of a light non-receiving panel on the side opposite to the sunlight incidence surface; disposing a solar cell string on the first silicone gel sheet of the light receiving panel, and disposing butyl rubber in a picture frame-like shape along an outer peripheral portion of the first silicone gel sheet; and laying the light receiving panel and the non-receiving panel over each other with the silicone gel sheets on the inside, and pressing them at 100 to 150° C. in vacuum to encapsulate the solar cell string with the silicone gel sheets and press bond the light receiving panel and the non-receiving panel to each other through the butyl rubber.Type: ApplicationFiled: October 3, 2013Publication date: April 10, 2014Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Tomoyoshi Furihata, Atsuo Ito, Hiroto Ohwada, Hyung Bae Kim, Sumio Sekiyama, Junichi Tsukada, Atsushi Yaginuma, Naoki Yamakawa
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Publication number: 20130276884Abstract: A silicone composition for photovoltaic encapsulation is prepared by blending (A) an organopolysiloxane containing at least two silicon-bonded alkenyl groups per molecule, (B) an organohydrogenpolysiloxane containing at least two silicon-bonded hydrogen atoms per molecule, and (C) an addition reaction catalyst such that the composition when cured may have a water vapor permeability of 80-160 g/m2·day at 40° C. and a thickness of 1 mm.Type: ApplicationFiled: April 22, 2013Publication date: October 24, 2013Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Hiroto Ohwada, Tomoyoshi Furihata, Atsuo Ito, Hyung-Bae Kim, Naoki Yamakawa, Atsushi Yaginuma