Patents by Inventor Yoshihiko Sakane
Yoshihiko Sakane 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: 11165002Abstract: A light-emitting device 1 comprises a base 30, a nitride semiconductor light-emitting element 10 flip-chip mounted on the base 30, and an amorphous fluororesin sealing the nitride semiconductor light-emitting element 10. The light-emitting device 1 comprises a deformation-prevention layer 60 for preventing a shape change of an amorphous fluororesin by heat treatment after shipment of the light-emitting device 1, and the deformation-prevention layer 60 is formed of a layer in which a thermosetting resin or an ultraviolet curing resin is cured, and the cured layer directly covers the surface of the amorphous fluororesin.Type: GrantFiled: August 30, 2017Date of Patent: November 2, 2021Assignees: SOKO KAGAU CO., LTD., AGC INC.Inventors: Akira Hirano, Yosuke Nagasawa, Masamichi Ippommatsu, Ko Aosaki, Yuki Suehara, Yoshihiko Sakane
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Patent number: 11107961Abstract: The ultraviolet light-emitting device includes a base, a nitride semiconductor ultraviolet light-emitting element flip-chip mounted on the base, and a lens for sealing a nitride semiconductor ultraviolet light-emitting element to focus or diffuse light emitted from the nitride semiconductor ultraviolet light-emitting device. The lens is composed of an amorphous fluororesin in which a structural unit of a polymer or copolymer has a fluorine-containing aliphatic cyclic structure and a terminal functional group is a perfluoroalkyl group, and a density of the amorphous fluororesin is higher than 2.11 g/cm3.Type: GrantFiled: November 2, 2017Date of Patent: August 31, 2021Assignees: SOKO KAGAKU CO., LTD., AGC INC.Inventors: Akira Hirano, Yosuke Nagasawa, Masamichi Ippommatsu, Ko Aosaki, Yuki Suehara, Yoshihiko Sakane
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Publication number: 20200274040Abstract: The ultraviolet light-emitting device includes a base, a nitride semiconductor ultraviolet light-emitting element flip-chip mounted on the base, and a lens for sealing a nitride semiconductor ultraviolet light-emitting element to focus or diffuse light emitted from the nitride semiconductor ultraviolet light-emitting device. The lens is composed of an amorphous fluororesin in which a structural unit of a polymer or copolymer has a fluorine-containing aliphatic cyclic structure and a terminal functional group is a perfluoroalkyl group, and a density of the amorphous fluororesin is higher than 2.11 g/cm3.Type: ApplicationFiled: November 2, 2017Publication date: August 27, 2020Applicants: Soko Kagaku Co., Ltd., AGC INC.Inventors: Akira HIRANO, Yosuke NAGASAWA, Masamichi IPPOMMATSU, Ko AOSAKI, Yuki SUEHARA, Yoshihiko SAKANE
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Publication number: 20200168775Abstract: A light-emitting device 1 comprises a base 30, a nitride semiconductor light-emitting element 10 flip-chip mounted on the base 30, and an amorphous fluororesin sealing the nitride semiconductor light-emitting element 10. The light-emitting device 1 comprises a deformation-prevention layer 60 for preventing a shape change of an amorphous fluororesin by heat treatment after shipment of the light-emitting device 1, and the deformation-prevention layer 60 is formed of a layer in which a thermosetting resin or an ultraviolet curing resin is cured, and the cured layer directly covers the surface of the amorphous fluororesin.Type: ApplicationFiled: August 30, 2017Publication date: May 28, 2020Applicants: Soko Kagaku Co., Ltd., AGC INC.Inventors: Akira HIRANO, Yosuke NAGASAWA, Masamichi IPPOMMATSU, Ko AOSAKI, Yuki SUEHARA, Yoshihiko SAKANE
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Publication number: 20200056079Abstract: To provide an antifouling article having an antifouling layer formed on the surface of an organic material using a fluorinated compound, wherein the antifouling article is excellent in antifouling properties and has durability such as abrasion resistance with respect to the antifouling properties. An antifouling article comprising: a substrate, at least a portion of the surface thereof being made of an organic material; a primer layer disposed on the surface made of the organic material; and an antifouling layer disposed on the primer layer; wherein: the primer layer is a layer formed by using a first silane compound which has a hydrolyzable silyl group, and a reactive organic group (a reactive organic group (A)) that is a group having a linking group and a reactive group, or a reactive group other than a hydrolyzable group; the absolute value of the difference between the SP value of the organic material and the SP value of the reactive organic group is from 0 to 3.Type: ApplicationFiled: October 28, 2019Publication date: February 20, 2020Applicant: AGC Inc.Inventors: Tamami Takeuchi, Ayumu Suzuki, Yoshihiko Sakane
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Patent number: 10416561Abstract: A coating composition which contains a fluorinated polymer having a unit (1) represented by —[CX1X2—CY1(Rf1—COOM1)]— and a fluorinated compound represented by CX3X4?CY2(Rf2—COOM2), wherein the content of the fluorinated compound is from 0.1 to 8.0 parts by mass per 100 parts by mass of the fluorinated polymer. X1, X2, X3 and X4 are H, F or Cl, Y1 and Y2 are H, F, Cl, a methyl group or a trifluoromethyl group, Rf1 and Rf2 are a perfluoroalkylene group which may contain an etheric oxygen atom between carbon-carbon atoms, or an oxyperfluoroalkylene group which may contain an etheric oxygen atom between carbon-carbon atoms, —COOM1 is —COOH or —COOZ1, and —COOM2 is —COOH or —COOZ2 (wherein Z1 and Z2 are an ammonium ion in which the hydrogen atom may be substituted). The coating composition is suitable for forming a thin antireflection coating layer without increasing its refractive index.Type: GrantFiled: March 9, 2017Date of Patent: September 17, 2019Assignee: AGC Inc.Inventors: Ryujiro Yamasaki, Masahiro Ito, Yoshihiko Sakane
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Patent number: 10246615Abstract: Provided is an adhesive for use in an ultraviolet-light-emitting device using ultraviolet light having a wavelength of from 200 to 400 nm as a light source, which can attach adherends made of a polymer having a fluorine-containing alicyclic structure with excellent adhesiveness which is unlikely to be impaired by exposure to such ultraviolet light or heat. An adhesive for forming an adhesive joint in an ultraviolet-light-emitting device, which is either the following adhesive (A) or the following adhesive (B) comprising a fluoropolymer having a fluorine-containing alicyclic structure: the adhesive (A): an adhesive in which the glass transition temperature of the fluoropolymer is from 30 to 100° C., and which does not contain an ultraviolet-shielding agent; and the adhesive (B): an adhesive comprising the fluoropolymer and an ultraviolet-shielding agent.Type: GrantFiled: January 9, 2017Date of Patent: April 2, 2019Assignee: AGC, Inc.Inventors: Fumiko Nakayama, Yoshihiko Sakane, Masahiro Ito, Yuki Hatanaka, Atsushi Koyanagi
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Publication number: 20170307975Abstract: A coating composition which contains a fluorinated polymer having a unit (1) represented by —[CX1X2—CY1(Rf1—COOM1)]— and a fluorinated compound represented by CX3X4?CY2(Rf2—COOM2), wherein the content of the fluorinated compound is from 0.1 to 8.0 parts by mass per 100 parts by mass of the fluorinated polymer. X1, X2, X3 and X4 are H, F or Cl, Y1 and Y2 are H, F, Cl, a methyl group or a trifluoromethyl group, Rf1 and Rf2 are a perfluoroalkylene group which may contain an etheric oxygen atom between carbon-carbon atoms, or an oxyperfluoroalkylene group which may contain an etheric oxygen atom between carbon-carbon atoms, —COOM1 is —COOH or —COOZ1, and —COOM2 is —COOH or —COOZ2 (wherein Z1 and Z2 are an ammonium ion in which the hydrogen atom may be substituted). The coating composition is suitable for forming a thin antireflection coating layer without increasing its refractive index.Type: ApplicationFiled: March 9, 2017Publication date: October 26, 2017Applicant: Asahi Glass Company, LimitedInventors: Ryujiro YAMASAKI, Masahiro Ito, Yoshihiko Sakane
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Publication number: 20170114253Abstract: Provided is an adhesive for use in an ultraviolet-light-emitting device using ultraviolet light having a wavelength of from 200 to 400 nm as a light source, which can attach adherends made of a polymer having a fluorine-containing alicyclic structure with excellent adhesiveness which is unlikely to be impaired by exposure to such ultraviolet light or heat. An adhesive for forming an adhesive joint in an ultraviolet-light-emitting device, which is either the following adhesive (A) or the following adhesive (B) comprising a fluoropolymer having a fluorine-containing alicyclic structure; the adhesive (A): an adhesive in which the glass transition temperature of the fluoropolymer is from 30 to 100° C., and which does not contain an ultraviolet-shielding agent; and the adhesive (B): an adhesive comprising the fluoropolymer and an ultraviolet-shielding agent.Type: ApplicationFiled: January 9, 2017Publication date: April 27, 2017Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Fumiko NAKAYAMA, Yoshihiko SAKANE, Masahiro ITO, Yuki HATANAKA, Atsushi KOYANAGI
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Publication number: 20160238935Abstract: To provide a coating composition which exhibits excellent followability to a difference in level in its application, and which is capable of forming a coating layer having a low refractive index in a short-wavelength region and exhibiting excellent solubility to an alkaline aqueous solution. A coating composition comprising a solvent and a fluorinated polymer (A) which has a unit represented by —[CX1X2—CY(—Rf—COOM)]— and has a number average molecular weight of from 1,000 to 7,500. X1 and X2 are each independently a hydrogen atom, a fluorine atom or a chlorine atom; Y is a hydrogen atom, a fluorine atom, a chlorine atom, a methyl group or a trifluoromethyl group; Rf is a branched perfluoroalkylene group which may contain an etheric oxygen atom between carbon-carbon atoms, or a branched oxyperfluoroalkylene group which may contain an etheric oxygen atom between carbon-carbon atoms; and M is a hydrogen atom or an ammonium ion which may be substituted.Type: ApplicationFiled: April 27, 2016Publication date: August 18, 2016Applicant: Asahi Glass Company, LimitedInventors: Ryujiro YAMASAKI, Akihiko ASAKAWA, Yoshihiko SAKANE, Masakuni SATO, Kazuo UMEMURA
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Patent number: 8339012Abstract: To provide an electret whose surface potential is improved and an electrostatic induction conversion device comprising the same, an electret is formed by spin-coating a fluorine-containing polymer composition for coating which contains a fluorine-containing polymer having a ring structure in its main chain, a silane coupling agent, an aprotic fluorine-containing solvent, and a fluorine-containing alcohol as a protic fluorine-containing solvent on a copper substrate and baking it.Type: GrantFiled: February 27, 2008Date of Patent: December 25, 2012Assignees: The University of Tokyo, Asahi Glass Co., Ltd.Inventors: Yuji Suzuki, Yoshihiko Sakane
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Publication number: 20100200740Abstract: Provided are a method of precisely molding an amorphous perfluoro resin with an accuracy of submicron or less and optic devices molded of the resin, and the method has the steps of (a) dissolving an amorphous perfluoro resin in a solvent, (b) pouring a solution of the amorphous perfluoro resin in a first mold, (c) heating a vessel with the solution placed therein, thereby volatilizing the solvent, and forming the amorphous perfluoro resin in the shape of a plate, and (d) pouring the amorphous perfluoro resin formed in the shape of a plate in a second mold, and pressurizing from one surface side to the other surface side of the second mold while heating, where the amorphous perfluoro resin is molded into a desired shape.Type: ApplicationFiled: September 8, 2008Publication date: August 12, 2010Applicants: INTER-UNIVERSITY RESERCH INSTITUTE CORP HIGH ENERGY ACCELERATOR RESEARCH ORGANIZATION, JAPAN ATOMIC ENERGY AGENCY, ASAHI GLASS COMPANY, LIMITEDInventors: Takashi Ino, Takenao Shinohara, Yoshihiko Sakane
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Publication number: 20100127595Abstract: To provide an electret whose surface potential is improved and an electrostatic induction conversion device comprising the same, an electret is formed by spin-coating a fluorine-containing polymer composition for coating which contains a fluorine-containing polymer having a ring structure in its main chain, a silane coupling agent, an aprotic fluorine-containing solvent, and a fluorine-containing alcohol as a protic fluorine-containing solvent on a copper substrate and baking it.Type: ApplicationFiled: February 27, 2008Publication date: May 27, 2010Applicants: THE UNIVERSITY OF TOKYO, ASAHI GLASS CO., LTD.Inventors: Yuji Suzuki, Yoshihiko Sakane
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Publication number: 20100080903Abstract: To provide a method for producing a fluoropolymer excellent in adhesion to a substrate and film strength. A method for producing a fluoropolymer thin film, which comprises forming a fluoropolymer thin film on a substrate by a physical vapor deposition method using, as an evaporation source, a fluoropolymer having a fluorinated aliphatic ring structure in its main chain and having a weight average molecular weight of from 3,000 to 80,000.Type: ApplicationFiled: October 19, 2009Publication date: April 1, 2010Applicant: ASAHI GLASS COMPANY LIMITEDInventors: Chikaya TAMITSUJI, Kunio Watanabe, Yoshihiko Sakane, Jun Minamidate
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Publication number: 20090302507Abstract: To provide a mold having optical transparency, release properties, mechanical strength, dimension stability and a highly precise micropattern, and having less deformation of the micropattern; and a process for producing a base material with a transferred micropattern having less deformation of the transferred micropattern, capable of transferring highly precise micropattern of the mold. A mold 10 comprising a transparent substrate (A) 12 having chemical bonds based on the functional groups (x) on the surface having an interlayer (C) 14 formed, having a difference in linear expansion coefficient (absolute value) of less than 30 ppm/° C. from the linear expansion coefficient of the following fluoropolymer (I), and further having a heat distortion temperature of from 100 to 300° C.Type: ApplicationFiled: August 18, 2009Publication date: December 10, 2009Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Kentaro TSUNOZAKI, Yasuhide Kawaguchi, Yoshihiko Sakane, Shuichi Shoji, Jun Mizuno, Shingo Kataza
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Patent number: 7441745Abstract: A mold and a process for producing a base material having a transferred micropattem, wherein the mold comprises a transparent substrate having chemical bonds resulting from functional groups (x) on a surface on which an interlayer (A) is formed, the interlayer (A) present between the surface of the transparent substrate and a surface layer (B) which has a micropattem for molding a photocurable resin, wherein interlayer (A) is a layer made of a fluoropolymer (1) which is a fluoropolymer having a fluorinated alicyclic structure in its main chain and which has reactive groups (y) reactive with functional groups (x), and surface layer (B) is a layer made of a fluoropolymer (2) which is a fluoropolymer having a fluorinated alicyclic structure in its main chain and which has substantially no reactive groups (y).Type: GrantFiled: May 29, 2007Date of Patent: October 28, 2008Assignee: Asahi Glass Company, LimitedInventors: Yasuhide Kawaguchi, Yoshihiko Sakane, Daisuke Shirakawa
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Patent number: 7440671Abstract: Materials transparent to terahertz waves are very limited, and it is difficult to obtain the required performance by selecting the material. Further, it is also difficult to search for a novel material. Therefore, by letting a known material transparent to terahertz waves have a photonic crystal structure and controlling the structure, an optical waveguide having the required properties is provided. An optical waveguide for propagation of far-infrared radiation in the terahertz region, which optical waveguide is made of a fluorinated amorphous polymer. Particularly preferred is a polymer having a fluorinated aliphatic ring structure in its main chain, obtained by cyclopolymerization of a fluorinated monomer having at least two polymerizable double bonds.Type: GrantFiled: May 18, 2007Date of Patent: October 21, 2008Assignee: Asahi Glass Company, LimitedInventors: Nobuhiko Sarukura, Ko Aosaki, Hideki Sato, Yoshihiko Sakane
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Publication number: 20070269178Abstract: Materials transparent to terahertz waves are very limited, and it is difficult to obtain the required performance by selecting the material. Further, it is also difficult to search for a novel material. Therefore, by letting a known material transparent to terahertz waves have a photonic crystal structure and controlling the structure, an optical waveguide having the required properties is provided. An optical waveguide for propagation of far-infrared radiation in the terahertz region, which optical waveguide is made of a fluorinated amorphous polymer. Particularly preferred is a polymer having a fluorinated aliphatic ring structure in its main chain, obtained by cyclopolymerization of a fluorinated monomer having at least two polymerizable double bonds.Type: ApplicationFiled: May 18, 2007Publication date: November 22, 2007Applicant: Asahi Glass Company, LimitedInventors: Nobuhiko Sarukura, Ko Aosaki, Hideki Sato, Yoshihiko Sakane
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Publication number: 20070228619Abstract: A mold and a process for producing a base material having a transferred micropattern are provided. A mold having a micropattern for molding a photocurable resin, which comprises a transparent substrate having chemical bonds resulting from functional groups (x) on a surface on which the following interlayer (A) is formed; the interlayer (A) present between said surface of the transparent substrate and the following surface layer (B); and the following surface layer (B) having a micropattern: Interlayer (A): a layer made of a fluoropolymer (1) which is a fluoropolymer having a fluorinated alicyclic structure in its main chain and which has reactive groups (y) reactive with said functional groups (x) Surface layer (B): a layer made of a fluoropolymer (2) which is a fluoropolymer having a fluorinated alicyclic structure in its main chain and which has substantially no reactive groups (y).Type: ApplicationFiled: May 29, 2007Publication date: October 4, 2007Applicant: Asahi Glass Company, LimitedInventors: Yasuhide Kawaguchi, Yoshihiko Sakane, Daisuke Shirakawa