Patents by Inventor Teiji Kohara
Teiji Kohara 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).
-
Publication number: 20220112407Abstract: A method of producing a roll-shaped body comprises: obtaining an adhesive agent sheet having an embossed shape at both surfaces thereof by imparting an embossed shape on both surfaces of an adhesive agent sheet containing a thermoplastic resin as a main component; overlapping a protective sheet having releasability from the adhesive agent sheet to at least one surface of the adhesive agent sheet having the embossed shape at both surfaces thereof; and obtaining the roll-shaped body by wounding the adhesive agent sheet having the embossed shape at both surfaces thereof and the protective sheet that are overlapped facing one another.Type: ApplicationFiled: December 17, 2021Publication date: April 14, 2022Applicant: ZEON CORPORATIONInventors: Ryuta KURIHARA, Teiji KOHARA
-
Patent number: 11247538Abstract: Provided is a laminated glass where multiple glass sheets are joined via an interlayer film [J], wherein i) mean density of the laminated glass is 1.2-1.5 g/cm3 at 25° C., ii) the interlayer film [J] has layered structure comprising at least two adhesive layers [G], comprising an adhesive mainly containing a thermoplastic elastomer having an alkoxysilyl group [F]; and at least one rigid resin layer [H] positioned therebetween, iii) storage modulus of the rigid resin layer [H] is higher than that of the adhesive layer [G], iv) storage modulus of the interlayer film [J] calculated from a formula 1 or measured is 2.0×108-1.0×109 Pa at ?20° C. and 1.0×108-8.0×108 Pa at 40° C., G?=(?iti)/(?i(ti/G?i))??(1) where G?: calculated storage modulus of the interlayer film, G?i: storage modulus of an i-th layer of the interlayer film, ti: thickness of the i-th layer, ?i: sum of numerical values of the i-th layer.Type: GrantFiled: December 15, 2017Date of Patent: February 15, 2022Assignee: ZEON CORPORATIONInventors: Ryuta Kurihara, Teiji Kohara
-
Patent number: 10889091Abstract: The present invention is a laminated glass which is prepared by inserting a resin intermediate film between glass plates and adhering the glass plates to integrate them, having a bending deflection at 90° C. is 7.3 N/mm2 or higher, a weight per unit area is 7.5 kg/m2 or less, wherein the resin intermediate film contains a modified hydrogenated block copolymer [E] obtained by introducing an alkoxysilyl group into a hydrogenated block copolymer [D], storage elastic moduli in the dynamic viscoelastic properties of the resin intermediate film are 5×108 Pa or lower at a temperature of ?20° C. and 2×107 Pa or higher at a temperature of 90° C., and the hydrogenated block copolymer [D] is obtained by hydrogenating 90% or more of carbon-carbon unsaturated bonds on a main chain and side chains and carbon-carbon unsaturated bonds on an aromatic ring in a specific block copolymer [C].Type: GrantFiled: April 14, 2016Date of Patent: January 12, 2021Assignee: ZEON CORPORATIONInventors: Hideyuki Kanda, Atsushi Ishiguro, Teiji Kohara
-
Patent number: 10553818Abstract: The invention is a method for manufacturing an organic electronic device sealing body, adhesively integrating an organic electronic device with a sheet-like sealant made of a modified hydrocarbon-based soft resin having an alkoxysilyl group, the method comprising steps of: step [1]: laminating the organic electronic device and the sheet-like sealant to obtain a laminate; step [2]: putting the resulting laminate into a resin bag, degassing the bag, and then sealing the bag containing the laminate; and step [3]: placing the sealed bag under a pressure of 0.1 MPa or higher to adhesively integrate the laminate. One aspect of the invention provides a method for manufacturing an organic electronic device sealing body which allows industrially-advantageous sealing of the organic electronic device including organic functional elements such as an organic EL element and an organic semiconductor element.Type: GrantFiled: March 13, 2017Date of Patent: February 4, 2020Assignee: ZEON CORPORATIONInventors: Daido Chiba, Teiji Kohara
-
Publication number: 20190330501Abstract: Disclosed is an adhesive sheet which comprises one or more layers made of a crosslinked elastomer whose peak of tan ? of dynamic viscoelastic characteristics as measured in accordance with JIS K7244-2 falls within a temperature range of ?20° C. to +20° C. Also disclosed is a laminated glass which comprises the adhesive sheet interposed between glass sheets and integrally bonded to the glass sheets.Type: ApplicationFiled: November 21, 2017Publication date: October 31, 2019Applicant: ZEON CORPORATIONInventors: Ryuta KURIHARA, Yohei KOIDE, Teiji KOHARA
-
Publication number: 20190315201Abstract: Provided is a laminated glass where multiple glass sheets are joined via an interlayer film [J], wherein i) mean density of the laminated glass is 1.2-1.5 g/cm3 at 25° C., ii) the interlayer film [J] has layered structure comprising at least two adhesive layers [G], comprising an adhesive mainly containing a thermoplastic elastomer having an alkoxysilyl group [F]; and at least one rigid resin layer [H] positioned therebetween, iii) storage modulus of the rigid resin layer [H] is higher than that of the adhesive layer [G], iv) storage modulus of the interlayer film [J] calculated from a formula 1 or measured is 2.0×108-1.0×109 Pa at ?20° C. and 1.0×108-8.0×108 Pa at 40° C., G?=(?iti)/(?i(ti/G?i))??(1) where G?: calculated storage modulus of the interlayer film, G?i: storage modulus of an i-th layer of the interlayer film, ti: thickess of the i-th layer, ?i: sum of numerical values of the i-th layer.Type: ApplicationFiled: December 15, 2017Publication date: October 17, 2019Applicant: ZEON CORPORATIONInventors: Ryuta KURIHARA, Teiji KOHARA
-
Publication number: 20190264069Abstract: Provided is a roll-shaped body that includes an adhesive agent sheet excelling in terms of low hygroscopicity, light resistance, transparency, and flexibility and that can prevent blocking of the adhesive agent sheet even upon temporary exposure to a high-temperature condition during storage or transport. The roll-shaped body includes an adhesive agent sheet containing a thermoplastic resin as a main component and having an embossed shape at both surfaces thereof. In the roll-shaped body, at least one surface of the adhesive agent sheet and a protective sheet having releasability from the adhesive agent sheet are overlapped facing one another and are wound up.Type: ApplicationFiled: November 21, 2017Publication date: August 29, 2019Applicant: ZEON CORPORATIONInventors: Ryuta KURIHARA, Teiji KOHARA
-
Publication number: 20190248114Abstract: Provided is a laminated glass including, in order: a first glass sheet; a first interlayer film; a transparent film laminated with a heat reflection film; a second interlayer film; and a second glass sheet, wherein the first interlayer film and the second interlayer film are formed of a modified hydrogenated block copolymer [E], the modified hydrogenated block copolymer [E] is a hydrogenated block copolymer [D] in which an alkoxysilyl group is incorporated, the hydrogenated block copolymer [D] being a block copolymer [C] in which 90% or more of all unsaturated bonds is hydrogenated, the block copolymer [C] is composed of at least two polymer blocks [A] including a repeat unit derived from an aromatic vinyl compound, and at least one polymer block [B] including a repeat unit derived from a linear conjugated diene compound, and the ratio of weight fraction [A]:[B] is 30:70 to 60:40.Type: ApplicationFiled: April 26, 2019Publication date: August 15, 2019Applicant: ZEON CORPORATIONInventors: Teiji KOHARA, Daido CHIBA
-
Publication number: 20190203086Abstract: Disclosed is a method for manufacturing a double side embossed adhesive sheet which comprises a thermoplastic resin as a main component, the method including: contacting one side of a melt which comprises a thermoplastic resin as a main component, extruded from a die, with a surface of a cast roll having an embossed shape on the surface while nipping the melt from an opposite side with a nip roll having an embossed shape on a surface thereof, wherein one of the cast roll and the nip roll is made of metal and the other is made of rubber.Type: ApplicationFiled: August 21, 2017Publication date: July 4, 2019Applicant: ZEON CORPORATIONInventors: Ryuta KURIHARA, Teiji KOHARA
-
Publication number: 20190203035Abstract: The present invention pertains to a laminated glass obtained by: interposing, between glass plates, a resin sheet comprising a resin composition obtained by blending 100 parts by weight of a specific modified hydrogenated block-copolymer having an introduced acid anhydride group, and a total of 0.001 to 2.0 parts by weight of a near infrared ray-absorbing pigment and/or a metal oxide particulate having a function of shielding infrared ray, to obtain a laminate; and integrally bonding the laminate including the glass plates and the resin sheet. The aspects of the invention provide a novel hydrogenated block copolymer having an acid anhydride group; a resin composition that includes the hydrogenated block copolymer, has excellent heat insulating function, and is suitable as a laminated glass intermediate film-forming material excellent in moisture resistance and durability; a resin sheet made of the resin composition; and a laminated glass.Type: ApplicationFiled: January 27, 2017Publication date: July 4, 2019Applicant: ZEON CORPORATIONInventors: Haruki KAMIMURA, Yohei KOIDE, Daido CHIBA, Teiji KOHARA
-
Patent number: 10328674Abstract: Provided is a laminated glass including, in order: a first glass sheet; a first interlayer film; a transparent film laminated with a heat reflection film; a second interlayer film; and a second glass sheet, wherein the first interlayer film and the second interlayer film are formed of a modified hydrogenated block copolymer [E], the modified hydrogenated block copolymer [E] is a hydrogenated block copolymer [D] in which an alkoxysilyl group is incorporated, the hydrogenated block copolymer [D] being a block copolymer [C] in which 90% or more of all unsaturated bonds is hydrogenated, the block copolymer [C] is composed of at least two polymer blocks [A] including a repeat unit derived from an aromatic vinyl compound, and at least one polymer block [B] including a repeat unit derived from a linear conjugated diene compound, and the ratio of weight fraction [A]:[B] is 30:70 to 60:40.Type: GrantFiled: July 7, 2015Date of Patent: June 25, 2019Assignee: ZEON CORPORATIONInventors: Teiji Kohara, Daido Chiba
-
Patent number: 10239966Abstract: The present invention is a hydrogenated block copolymer obtained by hydrogenating a block copolymer [C] that comprises polymer blocks [A] and polymer block [B], a ratio (wA:wB) of a weight fraction wA of the polymer blocks [A] and a weight fraction wB of the polymer block [B] in the block copolymer [C] being 45:55 to 65:35, a ratio (w[IB]:w[IIB]) of a weight fraction w[IB] of the repeating unit [I] derived from an aromatic vinyl compound and a weight fraction w[IIB] of the repeating unit [II] derived from a linear conjugated diene compound in the polymer block [B] being 40:60 to 55:45, 90% of more of unsaturated bonds included in the block copolymer [C] having been hydrogenated, a weight average molecular weight of 60,000 to 150,000, a low-temperature-side glass transition temperature [Tg1] of 0° C. or more and a high-temperature-side glass transition temperature [Tg2] of 135° C. or more, and a stretched film.Type: GrantFiled: October 8, 2015Date of Patent: March 26, 2019Assignee: ZEON CORPORATIONInventors: Daisuke Saito, Yosuke Harauchi, Atsushi Ishiguro, Teiji Kohara
-
Publication number: 20190067632Abstract: The invention is a method for manufacturing an organic electronic device sealing body, adhesively integrating an organic electronic device with a sheet-like sealant made of a modified hydrocarbon-based soft resin having an alkoxysilyl group, the method comprising steps of: step [1]: laminating the organic electronic device and the sheet-like sealant to obtain a laminate; step [2]: putting the resulting laminate into a resin bag, degassing the bag, and then sealing the bag containing the laminate; and step [3]: placing the sealed bag under a pressure of 0.1 MPa or higher to adhesively integrate the laminate. One aspect of the invention provides a method for manufacturing an organic electronic device sealing body which allows industrially-advantageous sealing of the organic electronic device including organic functional elements such as an organic EL element and an organic semiconductor element.Type: ApplicationFiled: March 13, 2017Publication date: February 28, 2019Applicant: ZEON CORPORATIONInventors: Daido CHIBA, Teiji KOHARA
-
Publication number: 20190016106Abstract: The present invention provides: an assembly obtained by bonding a sheet made of a modified hydrogenated block copolymer having an alkoxysilyl group introduced therein with a thermoplastic resin sheet, wherein a peel strength of the adherend surface is 4 N/cm or higher; a method for producing an assembly by bonding a sheet made of a modified hydrogenated block copolymer having an alkoxysilyl group introduced therein with a thermoplastic resin sheet, the method comprising steps of: (1) activating an adherend surface of the thermoplastic resin sheet with at least one selected from plasma exposure, excimer UV exposure and corona discharge; and (2) superposing the sheet made of the modified hydrogenated block copolymer having the alkoxysilyl group introduced therein with the adherend surface of the thermoplastic resin sheet to be subjected to thermally press-bonding; and a sheet made of a modified hydrogenated block copolymer, comprising at least one surface activated.Type: ApplicationFiled: March 2, 2017Publication date: January 17, 2019Applicant: ZEON CORPORATIONInventors: Atsushi ISHIGURO, Daido CHIBA, Teiji KOHARA, Ryuta KURIHARA
-
Patent number: 10088605Abstract: An optical film includes a hydrogenated block copolymer-[2] obtained by hydrogenating 90% or more of unsaturated bonds of block copolymer-[1] that includes at least two polymer blocks-[A] and at least one polymer block-[B], the polymer block-[A] including a repeating unit derived from an aromatic vinyl compound as main component, the polymer block-[B] including repeating unit derived from a linear conjugated diene compound as main component, ratio (wA:wB) of weight fraction wA of the polymer block-[A] in block copolymer-[1] to weight fraction wB of polymer block-[B] in block copolymer-[1] being 40:60 to 80:20, height from peak of ridge of a die line is formed in longitudinal direction of the optical film to a valley bottom point that is contiguous to the ridge being 100 nm or less over the optical film entire surface, and slope of the die line being 300 nm/mm or less over the optical film entire surface.Type: GrantFiled: June 24, 2014Date of Patent: October 2, 2018Assignee: ZEON CORPORATIONInventors: Atsushi Ishiguro, Daisuke Saito, Teiji Kohara
-
Patent number: 10005924Abstract: The present invention is a transparent pressure-sensitive adhesive sheet that is formed of a resin composition [F], and has a storage modulus at 25° C. of 1×106 to 1×108 Pa, the resin composition [F] comprising a modified hydrogenated block copolymer [E] as a main component, the modified hydrogenated block copolymer [E] being obtained by introducing an alkoxysilyl group into a hydrogenated block copolymer [D], the hydrogenated block copolymer [D] being obtained by hydrogenating 90% or more of unsaturated bonds of a block copolymer [C] that comprises at least two polymer blocks [A] comprising a specific compound and at least one polymer block [B] comprising a specific compound, and a ratio (wA:wB) of a total weight fraction wA of the polymer block [A] in the block copolymer [C] to a total weight fraction wB of the polymer block [B] in the block copolymer [C] being 20:80 to 60:40.Type: GrantFiled: February 24, 2015Date of Patent: June 26, 2018Assignee: ZEON CORPORATIONInventors: Atsushi Ishiguro, Daisuke Saitou, Teiji Kohara
-
Publication number: 20180170007Abstract: The present invention is a resin composition comprising a specific modified hydrogenated block copolymer [E] prepared by introducing an alkoxysilyl group and a crosslinking aid; a resin laminate prepared by laminating a layer including the resin composition on at least one side of a polyimide-based resin film; and a resin laminated metallic foil prepared by laminating a metallic foil on at least one side of the polyimide-based resin film through the layer including the resin composition. The present invention provides: a resin composition excellent in adhesiveness to a polyimide-based resin film and a metallic foil with low surface roughness and excellent in electrical insulation; a resin laminate prepared by laminating the resin composition and a polyimide-based resin film; and a resin laminated metallic foil in which the polyimide-based resin film and a metallic foil with a low surface roughness are laminated by using the resin composition as an adhesive.Type: ApplicationFiled: June 8, 2016Publication date: June 21, 2018Applicant: ZEON CORPORATIONInventors: Daido CHIBA, Atsushi ISHIGURO, Teiji KOHARA
-
Publication number: 20180171057Abstract: The present invention is a hydrogenated block copolymer [D] obtained by hydrogenating a block copolymer [C] that comprises two or more polymer blocks [A] and one or more polymer blocks [B], the block [A] comprising a monomer unit derived from an aromatic vinyl compound, and the block [B] comprising a monomer unit derived from a linear conjugated diene compound, the copolymer [D] having a low-temperature-side tan ? peak temperature of ?20 to 20° C. and a high-temperature-side tan ? peak temperature of 100° C.Type: ApplicationFiled: December 25, 2015Publication date: June 21, 2018Applicants: ZEON CORPORATION, ZEON CORPORATIONInventors: Youhei KOIDE, Yosuke HARAUCHI, Atsushi ISHIGURO, Teiji KOHARA
-
Publication number: 20180099486Abstract: The present invention is a laminated glass which is prepared by inserting a resin intermediate film between glass plates and adhering the glass plates to integrate them, having a bending deflection at 90° C. is 7.3 N/mm2 or higher, a weight per unit area is 7.5 kg/m2 or less, wherein the resin intermediate film contains a modified hydrogenated block copolymer [E] obtained by introducing an alkoxysilyl group into a hydrogenated block copolymer [D], storage elastic moduli in the dynamic viscoelastic properties of the resin intermediate film are 5×108 Pa or lower at a temperature of ?20° C. and 2×107 Pa or higher at a temperature of 90° C., and the hydrogenated block copolymer [D] is obtained by hydrogenating 90% or more of carbon-carbon unsaturated bonds on a main chain and side chains and carbon-carbon unsaturated bonds on an aromatic ring in a specific block copolymer [C].Type: ApplicationFiled: April 14, 2016Publication date: April 12, 2018Applicant: ZEON CORPORATIONInventors: Hideyuki KANDA, Atsushi ISHIGURO, Teiji KOHARA
-
Publication number: 20180086029Abstract: The present invention is a laminated glass [H] which uses, as an intermediate film, a sheet [G] that is formed from a resin composition [F] that is prepared by blending a total amount of 0.001 to 2.0 parts by weight of a metal oxide particulate and/or a near infrared-absorbing pigment having a function of shielding infrared ray, into 100 parts by weight of a specific hydrogenated block copolymer [D] and/or a modified hydrogenated block copolymer [E]. The present invention provides a laminated glass which has excellent infrared shielding function, moisture resistance and heat resistance.Type: ApplicationFiled: April 6, 2016Publication date: March 29, 2018Applicant: ZEON CORPORATIONInventors: Haruki KAMIMURA, Daido CHIBA, Teiji KOHARA