Patents by Inventor Harutoshi Hoshino
Harutoshi Hoshino 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: 20170095768Abstract: Disclosed is an asymmetric gas separation membrane made of a soluble aromatic polyimide having a specific repeating unit, the soluble aromatic polyimide including: as a tetracarboxylic acid component, a biphenyl structure and a phenyl structure; as a diamine component, a 3,3?-diaminodiphenyl sulphone and a diaminodibenzothiophene, a diaminodibenzothiophene=5,5-dioxide, a diaminothioxanthene-10,10-dione, or a diaminothioxanthene-9,10,10-trione. Disclosed is a method for selectively separating and recovering a specific gas species from a mixed gas composed of a plurality of gas species using the asymmetric gas separation membrane, a method for selectively separating and recovering a nitrogen-rich gas from air using the asymmetric gas separation membrane, and a method for selectively separating carbon dioxide gas from a mixed gas containing carbon dioxide and methane and recovering methane-rich gas using the asymmetric gas separation membrane.Type: ApplicationFiled: March 25, 2015Publication date: April 6, 2017Inventors: Makoto NAKAMURA, Shihomi OKABORI, Toshimune YOSHINAGA, Harutoshi HOSHINO, Tomonori KANOUGI
-
Patent number: 9211497Abstract: An asymmetric gas separation membrane made of an aromatic polyimide mainly containing repeating units having an ether bond which is heated at a temperature near a softening point (Ts) of the aromatic polyimide, and a method for separating methanol from a methanol-containing mixed organic vapor by allowing methanol to selectively permeate the asymmetric gas separation membrane using the membrane.Type: GrantFiled: December 9, 2011Date of Patent: December 15, 2015Assignee: UBE INDUSTRIES, LTD.Inventors: Ryoichi Takada, Harutoshi Hoshino, Tomonori Kanougi, Toshimune Yoshinaga, Kenji Fukunaga
-
Publication number: 20130319229Abstract: An asymmetric gas separation membrane made of an aromatic polyimide mainly containing repeating units having an ether bond which is heated at a temperature near a softening point (Ts) of the aromatic polyimide, and a method for separating methanol from a methanol-containing mixed organic vapor by allowing methanol to selectively permeate the asymmetric gas separation membrane using the membrane.Type: ApplicationFiled: December 9, 2011Publication date: December 5, 2013Applicant: UBE INDUSTRIES, LTD.Inventors: Ryoichi Takada, Harutoshi Hoshino, Tomonori Kanougi, Toshimune Yoshinaga, Kenji Fukunaga
-
Solvent-resistant asymmetric hollow fiber gas separation membrane, and method for production thereof
Patent number: 8580012Abstract: An asymmetric hollow fiber gas separation membrane obtained by subjecting an asymmetric hollow fiber polyimide membrane to a heat treatment having a maximum temperature of from 350 to 450° C., wherein the asymmetric hollow fiber polyimide membrane is formed with a polyimide essentially having a repeating unit represented by a general formula (1); is excellent in a solvent resistance and a thermal stability, and as well has such a mechanical strength that a tensile elongation at break is not less than 10% as a hollow fiber membrane.Type: GrantFiled: January 19, 2009Date of Patent: November 12, 2013Assignee: Ube Industries, Ltd.Inventors: Harutoshi Hoshino, Tomonori Kanougi, Toshimune Yoshinaga, Yoji Kase, Kenji Fukunaga -
Patent number: 8394176Abstract: Disclosed are a gas separation membrane and a gas separation method in which at least one species of organic vapor is separated and recovered from an organic vapor mixture using the gas separation membrane. The gas separation membrane is made of an aromatic polyimide composed of a tetracarboxylic acid component consisting of an aromatic ring-containing tetracarboxylic acid and a diamine component comprising 10 to 90 mol % of a combination of (B1) 3,4?-diaminodiphenyl ether and (B2) 4,4?-diaminodiphenyl ether at a B1 to B2 molar ratio, B1/B2, ranging from 10/1 to 1/10, and 10 to 90 mol % of other aromatic diamine.Type: GrantFiled: February 4, 2009Date of Patent: March 12, 2013Assignee: Ube Industries, Ltd.Inventors: Tomonori Kanougi, Harutoshi Hoshino, Toshimune Yoshinaga, Yoji Kase, Kenji Fukunaga
-
Patent number: 8075824Abstract: A polyimide film made of a multicomponent polyimide comprising two or more different polyimide components including (A) a polyimide component A being raw materials of a polyimide A and/or a polyimidation product of the raw materials and (B) a polyimide component B being raw materials of a polyimide B and/or a polyimidation product of the raw materials. The polyimide components A and B are different, for example, such that the absolute difference between solubility parameter SPA of the polyimide A and solubility parameter SPB of the polyimide B, |SPB-SPA|, is 0.5 MPa1/2 or more. The polyimide film has markedly modified surface properties as compared with a polyimide film in which all the same raw materials as used in the film of the invention are randomly bonded to one another.Type: GrantFiled: July 23, 2007Date of Patent: December 13, 2011Assignee: UBE Industries, Ltd.Inventors: Toshimune Yoshinaga, Kenji Fukunaga, Harutoshi Hoshino
-
SOLVENT-RESISTANT ASYMMETRIC HOLLOW FIBER GAS SEPARATION MEMBRANE, AND METHOD FOR PRODUCTION THEREOF
Publication number: 20110048229Abstract: An asymmetric hollow fiber gas separation membrane obtained by subjecting an asymmetric hollow fiber polyimide membrane to a heat treatment having a maximum temperature of from 350 to 450° C., wherein the asymmetric hollow fiber polyimide membrane is formed with a polyimide essentially having a repeating unit represented by a general formula (1); is excellent in a solvent resistance and a thermal stability, and as well has such a mechanical strength that a tensile elongation at break is not less than 10% as a hollow fiber membrane.Type: ApplicationFiled: January 19, 2009Publication date: March 3, 2011Applicant: UBE Industries, Ltd.Inventors: Harutoshi Hoshino, Tomonori Kanougi, Toshimune Yoshinaga, Yoji Kase, Kenji Fukunaga -
Publication number: 20110000367Abstract: Disclosed are a gas separation membrane and a gas separation method in which at least one species of organic vapor is separated and recovered from an organic vapor mixture using the gas separation membrane. The gas separation membrane is made of an aromatic polyimide composed of a tetracarboxylic acid component consisting of an aromatic ring-containing tetracarboxylic acid and a diamine component comprising 10 to 90 mol % of a combination of (B1) 3,4?-diaminodiphenyl ether and (B2) 4,4?-diaminodiphenyl ether at a B1 to B2 molar ratio, B1/B2, ranging from 10/1 to 1/10, and 10 to 90 mol % of other aromatic diamine.Type: ApplicationFiled: February 4, 2009Publication date: January 6, 2011Applicant: UBE INDUSSTRIES, LTD.Inventors: Tomonori Kanougi, Harutoshi Hoshino, Toshimune Yoshinaga, Yoji Kase, Kenji Fukunaga
-
Patent number: 7803214Abstract: The present invention relates to an asymmetric hollow-fiber gas separation membrane made of a polyimide having a specific repeating unit, an improved tensile elongation at break of 15% or more as a hollow-fiber membrane itself, an oxygen gas permeation rate (P?O2) of 4.0×10?5 cm3(STP)/cm2·sec·cmHg or more and a gas ratio of permeation rate of oxygen to nitrogen (P?O2/P?N2) of 4 or more that are measured at 50° C., a gas separation method and a gas separation membrane module using the asymmetric hollow-fiber gas separation membrane. In addition, the present invention relates to an asymmetric hollow-fiber gas separation membrane obtained by heat-treating the asymmetric hollow-fiber gas separation membrane at a maximum temperature of from 350 to 450° C. The asymmetric hollow-fiber gas separation membrane has sufficient mechanical strength even after the heat-treatment at a maximum temperature of from 350 to 450° C.Type: GrantFiled: July 23, 2007Date of Patent: September 28, 2010Assignee: UBE Industries, Ltd.Inventors: Yoji Kase, Toshimune Yoshinaga, Kenji Fukunaga, Harutoshi Hoshino
-
Publication number: 20090258211Abstract: A polyimide film made of a multicomponent polyimide comprising two or more different polyimide components including (A) a polyimide component A being raw materials of a polyimide A and/or a polyimidation product of the raw materials and (B) a polyimide component B being raw materials of a polyimide B and/or a polyimidation product of the raw materials. The polyimide components A and B are different, for example, such that the absolute difference between solubility parameter SPA of the polyimide A and solubility parameter SPB of the polyimide B, |SPB?SPA|, is 0.5 MPa1/2 or more. The polyimide film has markedly modified surface properties as compared with a polyimide film in which all the same raw materials as used in the film of the invention are randomly bonded to one another.Type: ApplicationFiled: July 23, 2007Publication date: October 15, 2009Applicant: Ube Industries, Ltd.Inventors: Toshimune Yoshinaga, Kenji Fukunaga, Harutoshi Hoshino
-
Publication number: 20080017029Abstract: The present invention relates to an asymmetric hollow-fiber gas separation membrane made of a polyimide having a specific repeating unit, an improved tensile elongation at break of 15% or more as a hollow-fiber membrane itself, an oxygen gas permeation rate (P?O2) of 4.0×10?5 cm3 (STP)/cm2·sec·cmHg or more and a gas ratio of permeation rate of oxygen to nitrogen (P?O2/P?N2) of 4 or more that are measured at 50° C., a gas separation method and a gas separation membrane module using the asymmetric hollow-fiber gas separation membrane. In addition, the present invention relates to an asymmetric hollow-fiber gas separation membrane obtained by heat-treating the asymmetric hollow-fiber gas separation membrane at a maximum temperature of from 350 to 450° C. The asymmetric hollow-fiber gas separation membrane has sufficient mechanical strength even after the heat-treatment at a maximum temperature of from 350 to 450° C.Type: ApplicationFiled: July 23, 2007Publication date: January 24, 2008Applicant: UBE INDUSTRIES, LTD.Inventors: Yoji Kase, Toshimune Yoshinaga, Kenji Fukunaga, Harutoshi Hoshino
-
Patent number: 6630561Abstract: A crystalline polyesterpolyol having a number average molecular weight of 1,500 to 15,000 and obtainable from a polybasic carboxylic acid component and an aliphatic hydrocarbon diol component comprising 1,10-decanediol and/or 1,12-dodecanediol, and a hot-melt adhesive comprising a reaction product of a polyisocyanate and a polyesterpolyol, which contains a crystalline polyesterpolyol having a number average molecular weight of 1,500 to 15,000 and obtainable from a polybasic carboxylic acid component and an aliphatic hydrocarbon diol component comprising 1,10-decanediol and/or 1,12-dodecanediol are provided.Type: GrantFiled: April 19, 2001Date of Patent: October 7, 2003Assignee: UBE Industries, Ltd.Inventors: Mikito Kashima, Yumiki Noda, Harutoshi Hoshino, Toshikazu Machida, Hideki Ichihashi, Fumio Adachi, Yukio Kaneko
-
Publication number: 20030018157Abstract: A crystalline polyesterpolyol having a number average molecular weight of 1,500 to 15,000 and obtainable from a polybasic carboxylic acid component and an aliphatic hydrocarbon diol component comprising 1,10-decanediol and/or 1,12-dodecanediol, and a hot-melt adhesive comprising a reaction product of a polyisocyanate and a polyesterpolyol, which contains a crystalline polyesterpolyol having a number average molecular weight of 1,500 to 15,000 and obtainable from a polybasic carboxylic acid component and an aliphatic hydrocarbon diol component comprising 1,10-decanediol and/or 1,12-dodecanediol are provided.Type: ApplicationFiled: April 19, 2001Publication date: January 23, 2003Applicant: UBE Industries, Ltd.Inventors: Mikito Kashima, Yumiki Noda, Harutoshi Hoshino, Toshikazu Machida, Hideki Ichihashi, Fumio Adachi, Yukio Kaneko
-
Patent number: 6255484Abstract: A cyanurate compound having three oxetane ring groups and represented by the general formula (1): wherein R1 represents a member selected from the group consisting of a hydrogen atom and alkyl groups having 1 to 6 carbon atoms, is useful as a photosetting monomer or thermosetting monomer, and thus is used, together with a hardening agent, for example, a polycarboxylic anhydride and a catalyst, for example, an amine, a carboxylic acid metal salt or a protonic acid, to provide an organic hardening composition usable for producing electronic materials, for example, resists.Type: GrantFiled: September 27, 2000Date of Patent: July 3, 2001Assignee: Ube Industries, Ltd.Inventors: Mikito Kashima, Yumiki Noda, Harutoshi Hoshino, Toshikazu Machida
-
Patent number: 5286539Abstract: A gas separating asymmetric membrane such as a gas separating asymmetric hollow fiber comprises an aromatic polyimide comprising recurring units of the formulae (I) and (II): ##STR1## wherein A.sup.1 is a tetravalent unit having a diphenylhexafluoropropane structure, A.sup.2 is a tetravalent unit having a benzene structure, and A.sup.3 is a divalent aromatic unit which is a unit derived from a sulfur atom-containing diamine such as diaminodibenzothiophene, diaminodiphenylenesulfone, diaminothioxanthene-5,5-dioxide or diaminothioxanthone-5,5-dioxide. The aromatic polyimide contains the recurring unit of the formula (I) in an amount of 40 to 90 molar % and the recurring unit of the formula (II) in an amount of 10 to 40 molar %. Further, a process for the preparation of the gas separating asymmetric hollow fiber membrane is also disclosed.Type: GrantFiled: September 9, 1992Date of Patent: February 15, 1994Assignee: Ube Industries, Ltd.Inventors: Yoshihiro Kusuki, Toshimune Yoshinaga, Harutoshi Hoshino, Shinji Asanuma