Patents by Inventor Ryuichiro Hiranabe
Ryuichiro Hiranabe 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).
-
Patent number: 11103836Abstract: A problem to be solved by the present invention is to provide a separation membrane having excellent separation performance, having high membrane strength and high permeation performance, and mainly including a cellulose-based resin. The present invention is concerned with a separation membrane including a cellulose ester, having, in the interior thereof, voids each having a specified structure, and having a tensile elasticity of 1,000 to 6,500 MPa.Type: GrantFiled: March 5, 2020Date of Patent: August 31, 2021Assignee: TORAY INDUSTRIES, INC.Inventors: Koichi Takada, Gohei Yamamura, Ryuichiro Hiranabe, Hiroki Tomioka
-
Patent number: 10888822Abstract: The present invention provides a separation membrane having excellent separation performance and permeation performance, having high membrane strength, and mainly including a cellulose-based resin. The present invention relates to a separation membrane containing a cellulose ester and having a tensile elasticity of 1,500 to 6,500 MPa.Type: GrantFiled: September 30, 2015Date of Patent: January 12, 2021Assignee: Toray Industries, Inc.Inventors: Gohei Yamamura, Koichi Takada, Ryuichiro Hiranabe, Hiroki Tomioka
-
Publication number: 20200261886Abstract: Provided is a filter having either or both of a winding and a laminate that include a fiber-like absorbing material, wherein the fiber-like absorbing material has a base material and metal particles supported on the base material, and the diameter D of the fiber-like absorbing material, the void fraction of the winding or laminate, and the variation in the area void fraction in the radial direction of the winding or the variation in the area void fraction in the direction of lamination are in a specific range.Type: ApplicationFiled: August 31, 2018Publication date: August 20, 2020Applicant: TORAY INDUSTRIES, INC.Inventors: Ryoma MIYAMOTO, Gohei YAMAMURA, Yoichiro KOZAKI, Ryuichiro HIRANABE, Satoko KANAMORI
-
Publication number: 20200246759Abstract: The problem to be solved by the present invention is to provide a separation film mainly comprising a cellulose-based resin having high permeability. The present invention pertains to a separation film containing a cellulose ester, wherein the separation film is provided with a bicontinuous structure comprising voids and phases containing the cellulose ester, and the width of the voids is 1 to 200 nm inclusive.Type: ApplicationFiled: April 21, 2020Publication date: August 6, 2020Applicant: TORAY INDUSTRIES, INC.Inventors: Koichi TAKADA, Gohei YAMAMURA, Ryuichiro HIRANABE, Masayuki HANAKAWA, Hiroshi TAKAHASHI, Takaaki MIHARA, Masahiro KIMURA, Hiroki TOMIOKA
-
Publication number: 20200197880Abstract: A problem to be solved by the present invention is to provide a separation membrane having excellent separation performance, having high membrane strength and high permeation performance, and mainly including a cellulose-based resin. The present invention is concerned with a separation membrane including a cellulose ester, having, in the interior thereof, voids each having a specified structure, and having a tensile elasticity of 1,000 to 6,500 MPa.Type: ApplicationFiled: March 5, 2020Publication date: June 25, 2020Applicant: TORAY INDUSTRIES, INC.Inventors: Koichi TAKADA, Gohei YAMAMURA, Ryuichiro HIRANABE, Hiroki TOMIOKA
-
Patent number: 10662083Abstract: The present invention provides a filter which, even when raw water is subjected to high-speed treatment, enables achieving a high solute rejection ratio and a long solute filtration life and which exhibits a low water flow resistance. The present invention pertains to a filter obtained by laminating woven fabrics or knitted fabrics, the filter being characterized in that: said woven fabrics or knitted fabrics comprise a fiber capable of adsorbing components dissolved in liquid: said fiber has a diameter of 100-600 ?m; the woven fabrics or knitted fabrics have a porosity of 15-70%; and variation in area porosity in the thickness direction of the laminate is 15% or less.Type: GrantFiled: February 28, 2018Date of Patent: May 26, 2020Assignee: TORAY INDUSTRIESInventors: Ryoma Miyamoto, Keisuke Yoneda, Kumiko Ogawa, Satoko Kanamori, Ryuichiro Hiranabe, Yoichiro Kozaki
-
Patent number: 10639595Abstract: A problem to be solved by the present invention is to provide a separation membrane having excellent separation performance, having high membrane strength and high permeation performance, and mainly including a cellulose-based resin. The present invention is concerned with a separation membrane including a cellulose ester, having, in the interior thereof, voids each having a specified structure, and having a tensile elasticity of 1,000 to 6,500 MPa.Type: GrantFiled: March 31, 2016Date of Patent: May 5, 2020Assignee: TORAY INDUSTRIES, INC.Inventors: Koichi Takada, Gohei Yamamura, Ryuichiro Hiranabe, Hiroki Tomioka
-
Publication number: 20200062616Abstract: The present invention provides a filter which, even when raw water is subjected to high-speed treatment, enables achieving a high solute rejection ratio and a long solute filtration life and which exhibits a low water flow resistance. The present invention pertains to a filter obtained by laminating woven fabrics or knitted fabrics, the filter being characterized in that: said woven fabrics or knitted fabrics comprise a fiber capable of adsorbing components dissolved in liquid: said fiber has a diameter of 100-600 ?m; the woven fabrics or knitted fabrics have a porosity of 15-70%; and variation in area porosity in the thickness direction of the laminate is 15% or less.Type: ApplicationFiled: February 28, 2018Publication date: February 27, 2020Applicant: TORAY INDUSTRIES, INC.Inventors: Ryoma MIYAMOTO, Keisuke YONEDA, Kumiko OGAWA, Satoko KANAMORI, Ryuichiro HIRANABE, Yoichiro KOZAKI
-
Patent number: 10478782Abstract: Problems that the invention is to solve is to provide a composite hollow fiber membrane being excellent in separation performance and permeation performance, having high membrane strength, and capable of being easily produced, and a method for producing the same. The present invention relates to a composite hollow fiber membrane including at least a layer (A) and a layer (B), in which the composite hollow fiber membrane has an outer diameter of 20 to 350 ?m and an inner diameter of 14 to 250 ?m, the tensile modulus of the composite hollow fiber membrane is from 1,000 to 6,500 MPa, the layer (A) contains a cellulose ester, the thickness of the layer (A) is from 0.01 to 5 ?m, and the open pore ratio HA of the layer (A) and the open pore ratio HB of the layer (B) satisfy HA<HB.Type: GrantFiled: April 28, 2016Date of Patent: November 19, 2019Assignee: TORAY INDUSTRIES, INC.Inventors: Gohei Yamamura, Koichi Takada, Ryuichiro Hiranabe, Hiroki Tomioka
-
Publication number: 20190217286Abstract: The present invention relates to an ion exchange fiber including: a core fiber; and an ion exchange layer that is disposed at a vicinity of the core fiber and includes a crosslinked polymer compound having an ion exchange group, in which, in a cross section perpendicular to a longitudinal direction of the ion exchange fiber, an area of the ion exchange layer occupies 50% or more and 90% or less of a total cross sectional area, and the ion exchange fiber has a swelling ratio of 50% or less.Type: ApplicationFiled: August 29, 2017Publication date: July 18, 2019Applicant: TORAY INDUSTRIES, INC.Inventors: Ryoma MIYAMOTO, Keisuke YONEDA, Ryuichiro HIRANABE, Satoko KANAMORI, Keiji TAKEDA, Noriko NAGAI, Naoki ASAI
-
Publication number: 20190060838Abstract: The purpose of the present invention is to provide a porous molded body which is capable of adsorbing and removing low-molecular-weight organic matters or ions with high removal rate. The present invention relates to a porous molded body which is provided with: a plurality of columnar structures containing a crystalline polymer and having a (long side)/(short side) aspect ratio of 2 or more; and inorganic particles.Type: ApplicationFiled: June 24, 2016Publication date: February 28, 2019Applicant: TORAY INDUSTRIES, INC.Inventors: Ryuichiro HIRANABE, Kentaro KOBAYASHI, Masayuki HANAKAWA, Tamotsu KITADE
-
Publication number: 20180280893Abstract: The problem to be solved by the present invention is to provide a separation film mainly comprising a cellulose-based resin having high permeability. The present invention pertains to a separation film containing a cellulose ester, wherein the separation film is provided with a bicontinuous structure comprising voids and phases containing the cellulose ester, and the width of the voids is 1 to 200 nm inclusive.Type: ApplicationFiled: September 30, 2016Publication date: October 4, 2018Applicant: TORAY INDUSTRIES, INC.Inventors: Koichi TAKADA, Gohei YAMAMURA, Ryuichiro HIRANABE, Masayuki HANAKAWA, Hiroshi TAKAHASHI, Takaaki MIHARA, Masahiro KIMURA, Hiroki TOMIOKA
-
Publication number: 20180117537Abstract: Problems that the invention is to solve is to provide a composite hollow fiber membrane being excellent in separation performance and permeation performance, having high membrane strength, and capable of being easily produced, and a method for producing the same. The present invention relates to a composite hollow fiber membrane including at least a layer (A) and a layer (B), in which the composite hollow fiber membrane has an outer diameter of 20 to 350 ?m and an inner diameter of 14 to 250 ?m, the tensile modulus of the composite hollow fiber membrane is from 1,000 to 6,500 MPa, the layer (A) contains a cellulose ester, the thickness of the layer (A) is from 0.01 to 5 ?m, and the open pore ratio HA of the layer (A) and the open pore ratio HB of the layer (B) satisfy HA<HB.Type: ApplicationFiled: April 28, 2016Publication date: May 3, 2018Applicant: TORAY INDUSTRIES, INC.Inventors: Gohei YAMAMURA, Koichi TAKADA, Ryuichiro HIRANABE, Hiroki TOMIOKA
-
Publication number: 20180065093Abstract: A problem to be solved by the present invention is to provide a separation membrane having excellent separation performance, having high membrane strength and high permeation performance, and mainly including a cellulose-based resin. The present invention is concerned with a separation membrane including a cellulose ester, having, in the interior thereof, voids each having a specified structure, and having a tensile elasticity of 1,000 to 6,500 MPa.Type: ApplicationFiled: March 31, 2016Publication date: March 8, 2018Applicant: TORAY INDUSTRIES, INC.Inventors: Koichi TAKADA, Gohei YAMAMURA, Ryuichiro HIRANABE, Hiroki TOMIOKA
-
Publication number: 20170296984Abstract: The present invention provides a separation membrane having excellent separation performance and permeation performance, having high membrane strength, and mainly including a cellulose-based resin. The present invention relates to a separation membrane containing a cellulose ester and having a tensile elasticity of 1,500 to 6,500 MPa.Type: ApplicationFiled: September 30, 2015Publication date: October 19, 2017Applicant: TORAY INDUSTRIES, INC.Inventors: Gohei Yamamura, Koichi Takada, Ryuichiro Hiranabe, Hiroki Tomioka
-
Patent number: 9381472Abstract: A carbon dioxide separation membrane includes a skin layer having a function of separating carbon dioxide from a mixed gas, wherein the skin layer contains 30 to 90% by mass of a polymer resin in which a difference between an affinity to carbon dioxide and an affinity to at least one of hydrogen and helium, the affinities are expressed as free energy ?G (kcal mol?1), is 4.5 kcal mol?1 or more and less than 10 kcal mol?1, and from 10 to 70% by mass of an organic liquid having an affinity to carbon dioxide.Type: GrantFiled: May 30, 2013Date of Patent: July 5, 2016Assignee: Toray Industries, Inc.Inventors: Ryuichiro Hiranabe, Masayuki Hanakawa, Tomonori Kawakami
-
Publication number: 20150165390Abstract: A carbon dioxide separation membrane includes a skin layer having a function of separating carbon dioxide from a mixed gas, wherein the skin layer contains 30 to 90% by mass of a polymer resin in which a difference between an affinity to carbon dioxide and an affinity to at least one of hydrogen and helium, the affinities are expressed as free energy ?G (kcal mol?1), is 4.5 kcal mol?1 or more and less than 10 kcal mol?1, and from 10 to 70% by mass of an organic liquid having an affinity to carbon dioxide.Type: ApplicationFiled: May 30, 2013Publication date: June 18, 2015Inventors: Ryuichiro Hiranabe, Masayuki Hanakawa, Tomonori Kawakami