Patents by Inventor Norio Ishizuka
Norio Ishizuka 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: 11772983Abstract: A titania porous body is entirely formed of titania. The titania porous body includes a titania framework, first pores, and second pores. The titania framework forms a three-dimensional network structure. The first pores are opening portions of the three-dimensional structure. The second pores are disposed in a surface of the titania framework. Such a titania porous body is also referred to as a titania monolith.Type: GrantFiled: July 29, 2020Date of Patent: October 3, 2023Assignees: NGK INSULATORS, LTD., EMAUS KYOTO, INC.Inventors: Kazunari Yamada, Hideki Shimizu, Norio Ishizuka, Toshikazu Oda, Kyoko Konishi
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Patent number: 11613618Abstract: The present invention provides a porous body, the swelling of which under acidic conditions is suppressed, and a method for producing the porous body. The first porous body of the present invention is formed of a copolymer of an epoxy compound and a curing agent, wherein the porous body is a porous body containing no primary to tertiary amino groups and has an interconnected pore structure in which holes provided inside the porous body communicate with each other. The second porous body of the present invention is formed of a copolymer of an epoxy compound and a curing agent, wherein the porous body is a porous body containing no nitrogen atom to be quaternized by acid treatment, and has an interconnected pore structure in which holes provided inside the porous body communicate with each other.Type: GrantFiled: February 27, 2020Date of Patent: March 28, 2023Assignee: EMAUS KYOTO, INC.Inventors: Norio Ishizuka, Toshikazu Oda
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Publication number: 20210214514Abstract: The present invention provides a porous body, the swelling of which under acidic conditions is suppressed, and a method for producing the porous body. The first porous body of the present invention is formed of a copolymer of an epoxy compound and a curing agent, wherein the porous body is a porous body containing no primary to tertiary amino groups and has an interconnected pore structure in which holes provided inside the porous body communicate with each other. The second porous body of the present invention is formed of a copolymer of an epoxy compound and a curing agent, wherein the porous body is a porous body containing no nitrogen atom to be quaternized by acid treatment, and has an interconnected pore structure in which holes provided inside the porous body communicate with each other.Type: ApplicationFiled: February 27, 2020Publication date: July 15, 2021Inventors: Norio ISHIZUKA, Toshikazu ODA
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Patent number: 10858491Abstract: The present invention provides porous particles made of an organic polymer, uniform in shape, and having through holes that are not closed. The porous particles according to the present invention are porous particles having a substantially spherical shape. The porous particles are made of an organic polymer. Each of the porous particles has an interconnected pore structure in which through holes provided inside the porous particle communicate with each other, and ends of the through holes are open toward an outside of the porous particle.Type: GrantFiled: August 5, 2016Date of Patent: December 8, 2020Assignees: Kyoto University, Emaus Kyoto, Inc., Kosen National Institute of TechnologyInventors: Norio Ishizuka, Kyoko Konishi, Toshikazu Oda, Yoshinobu Tsujii, Keita Sakakibara, Takaya Sato
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Publication number: 20200354228Abstract: A titania porous body is entirely formed of titania. The titania porous body includes a titania framework, first pores, and second pores. The titania framework forms a three-dimensional network structure. The first pores are opening portions of the three-dimensional structure. The second pores are disposed in a surface of the titania framework. Such a titania porous body is also referred to as a titania monolith.Type: ApplicationFiled: July 29, 2020Publication date: November 12, 2020Applicants: NGK INSULATORS, LTD., EMAUS KYOTO, INC.Inventors: Kazunari YAMADA, Hideki SHIMIZU, Norio ISHIZUKA, Toshikazu ODA, Kyoko KONISHI
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Patent number: 10773241Abstract: The present invention provides a separating medium including porous resin particles which has a sufficient pore diameter suitable for liquid chromatography applications and which has high strength, is reduced in pressure loss during liquid passing, has the excellent property of separating a desired substance, and has low nonspecific adsorption properties. The separating medium of the invention is a separating medium obtained by treating porous epoxy resin particles and having an average pore diameter of 10 to 2,000 nm, or a separating medium obtained by treating porous epoxy resin particles and having a water content of 50% or higher.Type: GrantFiled: February 7, 2018Date of Patent: September 15, 2020Assignees: Mitsubishi Chemical Corporation, EMAUS KYOTO, INC., KYOTO UNIVERSITYInventors: Norio Ishizuka, Kyoko Konishi, Toshikazu Oda, Yoshinobu Tsujii, Keita Sakakibara, Shoya Yoda
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Publication number: 20180230284Abstract: The present invention provides porous particles made of an organic polymer, uniform in shape, and having through holes that are not closed. The porous particles according to the present invention are porous particles having a substantially spherical shape. The porous particles are made of an organic polymer. Each of the porous particles has an interconnected pore structure in which through holes provided inside the porous particle communicate with each other, and ends of the through holes are open toward an outside of the porous particle.Type: ApplicationFiled: August 5, 2016Publication date: August 16, 2018Inventors: Norio ISHIZUKA, Kyoko KONISHI, Toshikazu ODA, Yoshinobu TSUJII, Keita SAKAKIBARA, Takaya SATO
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Publication number: 20180223067Abstract: The present invention provides porous particles uniform in shape and having through holes that are not closed. The porous particles according to the present invention are porous particles having a substantially spherical shape. Each of the porous particles has an interconnected pore structure in which through holes provided inside the porous particle communicate with each other, and ends of the through holes are open toward an outside of the porous particle.Type: ApplicationFiled: August 5, 2016Publication date: August 9, 2018Inventors: Norio ISHIZUKA, Kyoko KONISHI, Toshikazu ODA, Yoshinobu TSUJII, Keita SAKAKIBARA, Takaya SATO
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Publication number: 20180161758Abstract: The present invention provides a separating medium including porous resin particles which has a sufficient pore diameter suitable for liquid chromatography applications and which has high strength, is reduced in pressure loss during liquid passing, has the excellent property of separating a desired substance, and has low nonspecific adsorption properties. The separating medium of the invention is a separating medium obtained by treating porous epoxy resin particles and having an average pore diameter of 10 to 2,000 nm, or a separating medium obtained by treating porous epoxy resin particles and having a water content of 50% or higher.Type: ApplicationFiled: February 7, 2018Publication date: June 14, 2018Applicants: Mitsubishi Chemical Corporation, EMAUS KYOTO, INC., KYOTO UNIVERSITYInventors: Norio ISHIZUKA, Kyoko KONISHI, Toshikazu ODA, Yoshinobu TSUJll, Keita SAKAKIBARA, Shoya YODA
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Patent number: 8696901Abstract: The present invention relates to a polymeric porous material characterized in that: the porous material has a bimodal pore size distribution attributable to macropores having a pore size of at least 50 nm and mesopores having a pore size of from 2 nm to less than 50 nm, the proportion of the specific surface area of the macropores to the specific surface area of all pores of the porous material is at least 10%, and the porous material is produced by (1) polymerizing a monomer in the presence of a polymerization initiator using as a porogen a solution obtained by dissolving a polymer having a weight-average molecular weight of at least 100,000 and a molecular weight distribution Mw/Mn of not more than 1.5 in a good solvent for the monomer, and (2) removing the porogen from the resultant product.Type: GrantFiled: May 9, 2006Date of Patent: April 15, 2014Assignees: National University Corporation Kyoto Institute of Technology, Emaus Kyoto, Inc.Inventors: Ken Hosoya, Hiroshi Aoki, Norio Ishizuka, Katsuya Yamamoto
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Publication number: 20090045119Abstract: The present invention relates to a polymeric porous material characterized in that: the porous material has a bimodal pore size distribution attributable to macropores having a pore size of at least 50 nm and mesopores having a pore size of from 2 nm to less than 50 nm, the proportion of the specific surface area of the macropores to the specific surface area of all pores of the porous material is at least 10%, and the porous material is produced by (1) polymerizing a monomer in the presence of a polymerization initiator using as a porogen a solution obtained by dissolving a polymer having a weight-average molecular weight of at least 100,000 and a molecular weight distribution Mw/Mn of not more than 1.5 in a good solvent for the monomer, and (2) removing the porogen from the resultant product.Type: ApplicationFiled: May 9, 2006Publication date: February 19, 2009Applicants: National University Corporation Kyoto Institute of Technology, Emaus Kyoto, Inc.Inventors: Ken Hosoya, Hiroshi Aoki, Norio Ishizuka, Katsuya Yamamoto