Patents by Inventor Toshihiro Suwa
Toshihiro Suwa 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: 20240092071Abstract: Object To provide a non-fluorine-based release liner having excellent heat-resistant stability of releasability and release strength that may be applied to a silicone adhesive layer, and a laminate and a roll body including the release liner. Resolution Means A release liner for a silicone adhesive layer according to an embodiment of the present disclosure includes a substrate and a release layer on at least one surface of the substrate, and the release layer contains poly(meth)acrylic acid ester, the poly(meth)acrylic acid ester is a polymer of a polymerizable component containing an alkyl (meth)acrylate monomer having a branched alkyl group having 8 or more carbon atoms.Type: ApplicationFiled: January 26, 2022Publication date: March 21, 2024Inventors: Toshihiro Suwa, Katsumasa Nemoto
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Patent number: 10214666Abstract: The present invention is a copolymer of a monomer mixture including about 25 to about 80 parts by mass of an alkyl (meth)acrylate, approximately 15 to approximately 50 parts by mass of a hydroxyl group-containing monomer, and approximately 5 to approximately 25 parts by mass of a macromer having a glass transition temperature (Tg) of approximately 50° C. or higher. The copolymer contains substantially no acidic groups.Type: GrantFiled: December 3, 2014Date of Patent: February 26, 2019Assignee: 3M Innovative Properties CompanyInventors: Aya Nakada, Hideyuki Hatanaka, Masaki Yoda, Toshihiro Suwa, Albert I. Everaerts, Shunsuke Suzuki, Yasuhiro Kinoshita
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Patent number: 9890305Abstract: Problem: To provide a method for producing a laminate comprising a thick, highly transparent cured adhesive sheet exhibiting flow characteristics accompanied by satisfactory fluidity and satisfactory initial adhesion to an adherend before irradiation, and satisfactory hardness (in particular, a high storage modulus) after irradiation.Type: GrantFiled: April 22, 2014Date of Patent: February 13, 2018Assignee: 3M Innovative Properties CompanyInventors: Toshihiro Suwa, Hikaru Takeda
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Publication number: 20170240782Abstract: Problem: To provide an optically clear adhesive with a high dielectric constant having an excellent balance of adhesive strength and cohesive strength as well as excellent optical characteristics, and an optical laminate containing the same. Solution: The optically clear adhesive of an embodiment of the present disclosure comprises a polymer of an acrylic monomer composition containing a hydroxyl group-containing monomer and at least 0.09 mass % and less than 50 mass % of a monofunctional alkyl (meth)acrylate, wherein the number of moles of OH in 100 g of the adhesive is at least 0.3 and at most 0.90.Type: ApplicationFiled: August 26, 2015Publication date: August 24, 2017Inventors: Toshihiro Suwa, Yusuke Nozaki, Shinya Nakajima, Aya Nakada, Shingo Amari, Shunsuke Suzuki, Chun-Yi Ting, Yasuhiro Kinoshita
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Publication number: 20170015877Abstract: The present invention is a copolymer of a monomer mixture including about 25 to about 80 parts by mass of an alkyl (meth)acrylate, approximately 15 to approximately 50 parts by mass of a hydroxyl group-containing monomer, and approximately 5 to approximately 25 parts by mass of a macromer having a glass transition temperature (Tg) of approximately 50° C. or higher. The copolymer contains substantially no acidic groups.Type: ApplicationFiled: December 3, 2014Publication date: January 19, 2017Applicant: 3M Innovative Properties CompanyInventors: Aya Nakada, Hideyuki Hatanaka, Masaki Yoda, Toshihiro Suwa, Albert I. Everaerts, Shunsuke Suzuki, Yasuhiro Kinoshita
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Patent number: 9527972Abstract: Polylactic acid-containing resin composition that includes a polylactic acid; and a (meth)acryl-silicone copolymer that includes a methyl(meth)acrylate; and a reactive silicone, wherein the (meth)acryl-silicone copolymer has a weight average molecular weight of 25,000 or more. Methods for producing a polylactic acid-containing resin composition, polylactic acid-containing resin films, polylactic acid-containing resin release films, polylactic acid-containing resin release films, and methods for producing polylactic acid-containing resin films are also disclosed.Type: GrantFiled: July 28, 2015Date of Patent: December 27, 2016Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Toshihiro Suwa, Aizoh Sakurai
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Patent number: 9453084Abstract: A polymer gel structure that includes a first layer having at least one non-planar main surface, the first layer including a first polymer component; and a second layer formed on the main surface of the first layer, the second layer including a second polymer component, wherein the second polymer component at least partially penetrates the first layer forming an interpenetrating polymer network structure or a semi-interpenetrating polymer network structure between the first polymer component and the second polymer component.Type: GrantFiled: August 18, 2008Date of Patent: September 27, 2016Assignee: 3M Innovative Properties CompanyInventors: Shoichi Masuda, Toshihiro Suwa, Naoyuki Toriumi
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Publication number: 20160068718Abstract: Problem: To provide a method for producing a laminate comprising a thick, highly transparent cured adhesive sheet exhibiting flow characteristics accompanied by satisfactory fluidity and satisfactory initial adhesion to an adherend before irradiation, and satisfactory hardness (in particular, a high storage modulus) after irradiation.Type: ApplicationFiled: April 22, 2014Publication date: March 10, 2016Inventors: Toshihiro Suwa, Hikaru Takeda
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Publication number: 20150329685Abstract: Polylactic acid-containing resin composition that includes a polylactic acid; and a (meth)acryl-silicone copolymer that includes a methyl(meth)acrylate; and a reactive silicone, wherein the (meth)acryl-silicone copolymer has a weight average molecular weight of 25,000 or more. Methods for producing a polylactic acid-containing resin composition, polylactic acid-containing resin films, polylactic acid-containing resin release films, polylactic acid-containing resin release films, and methods for producing polylactic acid-containing resin films are also disclosed.Type: ApplicationFiled: July 28, 2015Publication date: November 19, 2015Inventors: Toshihiro Suwa, Aizoh Sakurai
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Patent number: 9090771Abstract: Polylactic acid-containing resin composition that includes a polylactic acid; and a (meth)acryl-silicone copolymer that includes a methyl (meth)acrylate; and a reactive silicone, wherein the (meth)acryl-silicone copolymer has a weight average molecular weight of 25,000 or more. Methods for producing a polylactic acid-containing resin composition, polylactic acid-containing resin films, polylactic acid-containing resin release films, polylactic acid-containing resin release films, and methods for producing polylactic acid-containing resin films are also disclosed.Type: GrantFiled: January 15, 2010Date of Patent: July 28, 2015Assignee: 3M Innovative Properties CompanyInventors: Toshihiro Suwa, Aizoh Sakurai
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Publication number: 20150166841Abstract: A transparent pressure sensitive adhesive sheet with a front surface and a back surface, fabricated by changing the intensity of the ultraviolet light irradiation between the front surface and the back surface. The transparent pressure sensitive adhesive sheet is obtained by ultraviolet light irradiation of an ultraviolet light hardening pressure sensitive adhesive sheet that contains a (meth)acrylic copolymer, a cleavage type photoinitiator, and an ultraviolet light absorber. The amount of ultraviolet light irradiation varies between the first surface and the second surface and the adhesive force varies between the first surface and the second surface.Type: ApplicationFiled: July 9, 2013Publication date: June 18, 2015Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Saori Ueda, Toshihiro Suwa, Shunsuke Suzuki, Jun Fujita
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Patent number: 8920592Abstract: A method of making a display assembly includes the steps of (a) attaching a first substrate and a second substrate with an optically clear heat activated adhesive to form a laminate. Each of the first and second substrate has opposing major surfaces. At least one of the first and second substrate has a three dimensional surface topography covering at least a portion of one of its major surfaces or is distortion sensitive. At a heat activation temperature, the adhesive is pressure sensitive. The method also includes heating the laminate to the heat activation temperature of the adhesive causing the adhesive to flow. The activation temperature is greater than 40° C. and less than 120° C.Type: GrantFiled: March 4, 2011Date of Patent: December 30, 2014Assignee: 3M Innovation Properties CompanyInventors: Toshihiro Suwa, Yasuhiro Kinoshita, Albert I. Everaerts, Abdujabar K. Dire
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Patent number: 8911873Abstract: An ultraviolet cross-linkable pressure sensitive adhesive sheet includes a (meth)acrylic copolymer of a monomer containing a (meth)acrylic acid ester having an ultraviolet cross-linkable site. The storage modulus of the pressure sensitive adhesive sheet before ultraviolet cross-linking is from 5.0×104 to 1.0×106 Pa at 30° C. and 1 Hz and 5.0×104 Pa or less at 80° C. and 1 Hz. The storage modulus of the pressure sensitive adhesive sheet after ultraviolet cross-linking is 1.0×103 Pa or more at 130° C. and 1 Hz.Type: GrantFiled: March 7, 2011Date of Patent: December 16, 2014Assignee: 3M Innovative Properties CompanyInventors: Toshihiro Suwa, Shogo Sakakibara, Sotaro Endo, Saori Ueda, Shunsuke Suzuki
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Publication number: 20140302313Abstract: To provide a radiation curable pressure sensitive adhesive sheet capable of yielding both a pressure sensitive adhesive sheet with good initial adhesion to an adherend before irradiation and a pressure sensitive adhesive sheet with good rigidity after irradiation. A radiation curable pressure sensitive adhesive sheet includes a (meth)acrylic copolymer having a radiation reactive site and a plasticizer capable of bonding with the (meth)acrylic copolymer upon being irradiated.Type: ApplicationFiled: August 9, 2012Publication date: October 9, 2014Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Toshihiro Suwa, Yasuhiro Kinoshita
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Publication number: 20140262002Abstract: A micro-structured optically clear adhesive, including a first major surface and a second major surface, wherein at least one of the first and second major surfaces comprises a micro-structured surface of interconnected micro-structures in at least one of the planar dimensions (x-y), is disclosed. The micro-structured optically clear adhesive has a tan delta value of at least about 0.3 at a lamination temperature and is non-crosslinked or lightly crosslinked. The micro-structured surface may include indentations having a depth of between about 5 and about 80 microns. A method of laminating a first substrate and a second substrate without the use of a vacuum is provided.Type: ApplicationFiled: October 24, 2012Publication date: September 18, 2014Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Toshihiro Suwa, Albert I. Everaerts, Haruyuki Mikami, Yasuhiro Kinoshita
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Publication number: 20140110056Abstract: A method for manufacturing an image display device includes: providing an image display unit having an image display surface; providing a translucent protective material having a light-shielding portion; disposing a liquid optically clear adhesive (LOCA) between the image display surface of the image display unit and the translucent protective material; and curing the LOCA to adhere the image display unit with the translucent protective material. The LOCA is a two-part redox-type adhesive composed of a first composition including a first base agent containing a compound having at least one ethylenically unsaturated group and a polymerization initiator and a second composition including a second base agent containing a compound having at least one ethylenically unsaturated group and a reducing agent capable of decomposing the polymerization initiator.Type: ApplicationFiled: April 4, 2012Publication date: April 24, 2014Applicant: 3M INNOVATIVE PROPERITIES COMPANYInventors: Toshihiro Suwa, Yasuhiro Kinoshita, Hikaru Takeda
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Publication number: 20130164541Abstract: A multi-layer laminate includes a substrate and a resin layer. The substrate has an acrylic anti-abrasion coating layer on at least one surface. The resin layer is formed on the acrylic anti-abrasion coating layer and includes a polymerization product of a curable resin composition. The curable resin composition includes a (meth)acrylate having one or more hydroxyl groups in the molecule, a (meth)acrylate having two or more (meth)acryloyl groups in the molecule, a polyisocyanate having three or more isocyanate groups in the molecule and a photoinitiator.Type: ApplicationFiled: September 7, 2010Publication date: June 27, 2013Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Toshihiro Suwa, Hideyuki Hatanaka
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Publication number: 20120328891Abstract: An ultraviolet cross-linkable pressure sensitive adhesive sheet includes a (meth)acrylic copolymer of a monomer containing a (meth)acrylic acid ester having an ultraviolet cross-linkable site. The storage modulus of the pressure sensitive adhesive sheet before ultraviolet cross-linking is from 5.0×104 to 1.0×106 Pa at 30° C. and 1 Hz and 5.0×104 Pa or less at 80° C. and 1 Hz. The storage modulus of the pressure sensitive adhesive sheet after ultraviolet cross-linking is 1.0×103 Pa or more at 130° C. and 1 Hz.Type: ApplicationFiled: March 7, 2011Publication date: December 27, 2012Inventors: Toshihiro Suwa, Shogo Sakakibara, Sotaro Endo, Saori Ueda, Shunsuke Suzuki
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Publication number: 20120325402Abstract: A method of making a display assembly includes the steps of (a) attaching a first substrate and a second substrate with an optically clear heat activated adhesive to form a laminate. Each of the first and second substrate has opposing major surfaces. At least one of the first and second substrate has a three dimensional surface topography covering at least a portion of one of its major surfaces or is distortion sensitive. At a heat activation temperature, the adhesive is pressure sensitive. The method also includes heating the laminate to the heat activation temperature of the adhesive causing the adhesive to flow. The activation temperature is greater than 40° C. and less than 120° C.Type: ApplicationFiled: March 4, 2011Publication date: December 27, 2012Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Toshihiro Suwa, Yasuhiro Kinoshita, Albert I. Everaerts, Abdujabar K. Dire
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Publication number: 20110287206Abstract: Polylactic acid-containing resin composition that includes a polylactic acid; and a (meth)acryl-silicone copolymer that includes a methyl (meth)acrylate; and a reactive silicone, wherein the (meth)acryl-silicone copolymer has a weight average molecular weight of 25,000 or more. Methods for producing a polylactic acid-containing resin composition, polylactic acid-containing resin films, polylactic acid-containing resin release films, polylactic acid-containing resin release films, and methods for producing polylactic acid-containing resin films are also disclosed.Type: ApplicationFiled: January 15, 2010Publication date: November 24, 2011Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Toshihiro Suwa, Aizoh Sakurai