Patents by Inventor Shinya Okazaki
Shinya Okazaki 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: 9475908Abstract: The present invention aims to provide an industrially advantageous method for producing an aqueous dispersion of pseudopolyrotaxane enabling to produce an aqueous dispersion of pseudopolyrotaxane having good fluidity and excellent dispersion stability of the pseudopolyrotaxane particles therein. The present invention relates to a method for producing an aqueous dispersion of pseudopolyrotaxane. The method includes: a mixing step of a dissolving polyethylene glycol and a cyclodextrin in an aqueous medium to prepare a mixed solution; and a cooling step of continuously or intermittently cooling the mixed solution in a state of flux to precipitate pseudopolyrotaxane particles. The pseudopolyrotaxane particles contain the polyethylene glycol which is included in the cavities of the cyclodextrin molecules in a skewered manner.Type: GrantFiled: December 5, 2011Date of Patent: October 25, 2016Assignees: Sumitomo Seika Chemicals Co., Ltd., Advanced Softmaterials Inc.Inventors: Tomoaki Yamasaki, Shinya Okazaki, Hiroki Okazaki, Shigeki Hamamoto, Changming Zhao
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Patent number: 9409999Abstract: The present invention aims to provide a method of producing a hydrophilic modified polyrotaxane, which enables production of a hydrophilic modified polyrotaxane excellent in storage stability in an industrially advantageous way. The present invention provides a method of producing a hydrophilic modified polyrotaxane, comprising: a hydrophilic modification step of preparing a solution of a hydrophilic modified polyrotaxane by modifying all or part of hydroxy groups on a cyclodextrin of a polyrotaxane with hydrophilic modifying groups, the polyrotaxane containing the cyclodextrin, a polyethylene glycol included in the cavities of the cyclodextrin molecules in a skewered manner, and a capping group that is placed at each end of the polyethylene glycol and prevents dissociation of the cyclodextrin molecules from the polyethylene glycol; and a drying step in which the prepared solution of the hydrophilic modified polyrotaxane is formed into a thin film state and dried.Type: GrantFiled: December 5, 2011Date of Patent: August 9, 2016Assignees: SUMITOMO SEIKA CHEMICALS CO., LTD., ADVANCED SOFTMATERIALS INC.Inventors: Tomoaki Yamasaki, Shinya Okazaki, Hiroki Okazaki, Shigeki Hamamoto, Yuki Hayashi, Minoru Iwata
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Publication number: 20160107145Abstract: A photocatalyst material (1A) in accordance with an aspect of the present invention includes a core particle (2) and a shell layer (3) with which a whole surface of the core particle (2) is covered. The core particle (2) contains at least a tungsten oxide, and the shell layer (3) is constituted by a titanium oxide.Type: ApplicationFiled: August 6, 2014Publication date: April 21, 2016Inventors: Shinya OKAZAKI, Hiroyuki NISHINAKA, Masakazu MATSUBAYASHI
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Patent number: 9266972Abstract: The present invention aims to provide a polyrotaxane composition having excellent storage stability. The present invention relates to a polyrotaxane composition comprising: a polyrotaxane containing a cyclodextrin, a polyethylene glycol which is included in the cavities of the cyclodextrin molecules in a skewered manner, and a capping group that is placed at each end of the polyethylene glycol and prevents dissociation of the cyclodextrin molecules from the polyethylene glycol; and a polyphenol antioxidant.Type: GrantFiled: December 5, 2011Date of Patent: February 23, 2016Assignees: SUMITOMO SEIKA CHEMICALS CO., LTD., ADVANCED SOFTMATERIALS INC.Inventors: Tomoaki Yamasaki, Shinya Okazaki, Hiroki Okazaki, Shigeki Hamamoto, Changming Zhao, Minoru Iwata, Yuki Hayashi
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Patent number: 9238696Abstract: The present invention aims to provide a method of producing a powdered hydrophilic modified polyrotaxane, which enables production of a powdered hydrophilic modified polyrotaxane excellent in storage stability in an industrially advantageous way.Type: GrantFiled: December 5, 2011Date of Patent: January 19, 2016Assignee: Sumitomo Seika Chemicals Co., Ltd.Inventors: Tomoaki Yamasaki, Shinya Okazaki, Hiroki Okazaki, Shigeki Hamamoto, Yuki Hayashi, Minoru Iwata
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Patent number: 9205104Abstract: The present invention aims to provide a hydrophilic modified polyrotaxane composition having excellent storage stability. The present invention relates to a hydrophilic modified polyrotaxane composition comprising: a hydrophilic modified polyrotaxane produced by modifying, with hydrophilic modifying groups, all or part of hydroxy groups on a cyclodextrin of a polyrotaxane containing the cyclodextrin, a polyethylene glycol which is included in the cavities of the cyclodextrin molecules in a skewered manner, and a capping group that is placed at each end of the polyethylene glycol and prevents dissociation of the cyclodextrin molecules from the polyethylene glycol; and a polyphenol antioxidant.Type: GrantFiled: December 5, 2011Date of Patent: December 8, 2015Assignees: SUMITOMO SEIKA CHEMICALS CO., LTD., ADVANCED SOFTMATERIALS INC.Inventors: Tomoaki Yamasaki, Shinya Okazaki, Hiroki Okazaki, Shigeki Hamamoto, Changming Zhao, Minoru Iwata, Yuki Hayashi
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Patent number: 9120901Abstract: The present invention aims to provide an industrially advantageous method of producing a pseudopolyrotaxane with a high inclusion ratio. The present invention relates to a method for producing a pseudopolyrotaxane, including: an inclusion step of mixing a polyethylene glycol and a cyclodextrin in an aqueous medium to form an aqueous dispersion of pseudopolyrotaxane that contains pseudopolyrotaxane particles in which the polyethylene glycol is included in the cavities of the cyclodextrin molecules in a skewered manner; and a drying step of drying the aqueous dispersion of pseudopolyrotaxane produced in the inclusion step to obtain the pseudopolyrotaxane. In the drying step, the aqueous dispersion of pseudopolyrotaxane is dried in a thin film state.Type: GrantFiled: December 5, 2011Date of Patent: September 1, 2015Assignees: Sumitomo Seika Chemicals Co., Ltd., Advanced Softmaterials Inc.Inventors: Tomoaki Yamasaki, Shinya Okazaki, Hiroki Okazaki, Shigeki Hamamoto, Changming Zhao
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Patent number: 9068051Abstract: The present invention aims to provide a method for producing a refined polyrotaxane which includes an industrially advantageous method of producing a polyrotaxane that has excellent storage stability. The method for producing a refined polyrotaxane includes the step of heat-cleaning a polyrotaxane with a cleaning medium, the polyrotaxane containing cyclodextrin molecules, a polyethylene glycol which is included in the cavities of the cyclodextrin molecules in a skewered manner, and a capping group that is placed at each end of the polyethylene glycol and prevents dissociation of the cyclodextrin molecules from the polyethylene glycol.Type: GrantFiled: December 5, 2011Date of Patent: June 30, 2015Assignees: Sumitomo Seika Chemicals Co., Ltd., Advanced Softmaterials Inc.Inventors: Tomoaki Yamasaki, Shinya Okazaki, Hiroki Okazaki, Shigeki Hamamoto, Changming Zhao
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Publication number: 20140066615Abstract: The present invention aims to provide a method of producing a powdered hydrophilic modified polyrotaxane, which enables production of a powdered hydrophilic modified polyrotaxane excellent in storage stability in an industrially advantageous way.Type: ApplicationFiled: December 5, 2011Publication date: March 6, 2014Applicants: ADVANCED SOFTMATERIALS INC., SUMITOMO SEIKA CHEMICALS CO., LTD.Inventors: Tomoaki Yamasaki, Shinya Okazaki, Hiroki Okazaki, Shigeki Hamamoto, Yuki Hayashi, Minoru Iwata
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Publication number: 20140066403Abstract: The present invention aims to provide a hydrophilic modified polyrotaxane composition having excellent storage stability. The present invention relates to a hydrophilic modified polyrotaxane composition comprising: a hydrophilic modified polyrotaxane produced by modifying, with hydrophilic modifying groups, all or part of hydroxy groups on a cyclodextrin of a polyrotaxane containing the cyclodextrin, a polyethylene glycol which is included in the cavities of the cyclodextrin molecules in a skewered manner, and a capping group that is placed at each end of the polyethylene glycol and prevents dissociation of the cyclodextrin molecules from the polyethylene glycol; and a polyphenol antioxidant.Type: ApplicationFiled: December 5, 2011Publication date: March 6, 2014Applicants: ADVANCED SOFTMATERIALS INC., SUMITOMO SEIKA CHEMICALS CO., LTD.Inventors: Tomoaki Yamasaki, Shinya Okazaki, Hiroki Okazaki, Shigeki Hamamoto, Changming Zhao, Minoru Iwata, Yuki Hayashi
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Publication number: 20140066616Abstract: The present invention aims to provide a method of producing a hydrophilic modified polyrotaxane, which enables production of a hydrophilic modified polyrotaxane excellent in storage stability in an industrially advantageous way. The present invention provides a method of producing a hydrophilic modified polyrotaxane, comprising: a hydrophilic modification step of preparing a solution of a hydrophilic modified polyrotaxane by modifying all or part of hydroxy groups on a cyclodextrin of a polyrotaxane with hydrophilic modifying groups, the polyrotaxane containing the cyclodextrin, a polyethylene glycol included in the cavities of the cyclodextrin molecules in a skewered manner, and a capping group that is placed at each end of the polyethylene glycol and prevents dissociation of the cyclodextrin molecules from the polyethylene glycol; and a drying step in which the prepared solution of the hydrophilic modified polyrotaxane is formed into a thin film state and dried.Type: ApplicationFiled: December 5, 2011Publication date: March 6, 2014Applicants: ADVANCED SOFTMATERIALS INC., SUMITOMO SEIKA CHEMICALS CO., LTD.Inventors: Tomoaki Yamasaki, Shinya Okazaki, Hiroki Okazaki, Shigeki Hamamoto, Yuki Hayashi, Minoru Iwata
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Publication number: 20140058078Abstract: The present invention aims to provide a polyrotaxane composition having excellent storage stability. The present invention relates to a polyrotaxane composition comprising: a polyrotaxane containing a cyclodextrin, a polyethylene glycol which is included in the cavities of the cyclodextrin molecules in a skewered manner, and a capping group that is placed at each end of the polyethylene glycol and prevents dissociation of the cyclodextrin molecules from the polyethylene glycol; and a polyphenol antioxidant.Type: ApplicationFiled: December 5, 2011Publication date: February 27, 2014Applicants: ADVANCED SOFTMATERIALS INC., SUMITOMO SEIKA CHEMICALS CO., LTD.Inventors: Tomoaki Yamasaki, Shinya Okazaki, Hiroki Okazaki, Shigeki Hamamoto, Changming Zhao, Minoru Iwata, Yuki Hayashi
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Publication number: 20140018514Abstract: Glycolic acid having a high purity is obtained by subjecting glycolic acid or a glycolic acid solution containing contaminants to double-chamber electrodialysis combined with one or more treatments selected from among treatment with an activated carbon, treatment with an ion exchange resin, concentration treatment and cooling crystallization.Type: ApplicationFiled: July 22, 2013Publication date: January 16, 2014Applicant: Mitsui Chemicals, Inc.Inventors: Shinya OKAZAKI, Kaori Matoishi, Kiyoshi Itou
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Publication number: 20130331562Abstract: The present invention aims to provide a method for producing a refined polyrotaxane which includes an industrially advantageous method of producing a polyrotaxane that has excellent storage stability. The method for producing a refined polyrotaxane includes the step of heat-cleaning a polyrotaxane with a cleaning medium, the polyrotaxane containing cyclodextrin molecules, a polyethylene glycol which is included in the cavities of the cyclodextrin molecules in a skewered manner, and a capping group that is placed at each end of the polyethylene glycol and prevents dissociation of the cyclodextrin molecules from the polyethylene glycol.Type: ApplicationFiled: December 5, 2011Publication date: December 12, 2013Applicants: ADVANCED SOFTMATERIALS INC., SUMITOMO SEIKA CHEMICALS CO., LTD.Inventors: Tomoaki Yamasaki, Shinya Okazaki, Hiroki Okazaki, Shigeki Hamamoto, Changming Zhao
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Publication number: 20130317209Abstract: The present invention aims to provide an industrially advantageous method of producing a pseudopolyrotaxane with a high inclusion ratio. The present invention relates to a method for producing a pseudopolyrotaxane, including: an inclusion step of mixing a polyethylene glycol and a cyclodextrin in an aqueous medium to form an aqueous dispersion of pseudopolyrotaxane that contains pseudopolyrotaxane particles in which the polyethylene glycol is included in the cavities of the cyclodextrin molecules in a skewered manner; and a drying step of drying the aqueous dispersion of pseudopolyrotaxane produced in the inclusion step to obtain the pseudopolyrotaxane. In the drying step, the aqueous dispersion of pseudopolyrotaxane is dried in a thin film state.Type: ApplicationFiled: December 5, 2011Publication date: November 28, 2013Applicants: ADVANCED SOFTMATERIALS INC., SUMITOMO SEIKA CHEMICALS CO., LTD.Inventors: Tomoaki Yamasaki, Shinya Okazaki, Hiroki Okazaki, Shigeki Hamamoto, Changming Zhao
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Publication number: 20130296546Abstract: The present invention aims to provide an industrially advantageous method of producing a powdery pseudopolyrotaxane with a high inclusion ratio. The present invention relates to a method for producing a pseudopolyrotaxane, including: an inclusion step of mixing a polyethylene glycol and a cyclodextrin in an aqueous medium to form an aqueous dispersion of pseudopolyrotaxane that contains pseudopolyrotaxane particles in which the polyethylene glycol is included in the cavities of the cyclodextrin molecules in a skewered manner; and a drying step of drying the aqueous dispersion of pseudopolyrotaxane produced in the inclusion step to obtain the pseudopolyrotaxane. In the drying step, the aqueous dispersion of pseudopolyrotaxane is sprayed and dried in a heated gas-stream.Type: ApplicationFiled: December 5, 2011Publication date: November 7, 2013Applicants: ADVANCED SOFTMATERIALS INC., SUMITOMO SEIKA CHEMICALS CO., LTD.Inventors: Tomoaki Yamasaki, Shinya Okazaki, Hiroki Okazaki, Shigeki Hamamoto, Changming Zhao
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Publication number: 20130296547Abstract: The present invention aims to provide an industrially advantageous method for producing an aqueous dispersion of pseudopolyrotaxane enabling to produce an aqueous dispersion of pseudopolyrotaxane having good fluidity and excellent dispersion stability of the pseudopolyrotaxane particles therein. The present invention relates to a method for producing an aqueous dispersion of pseudopolyrotaxane. The method includes: a mixing step of a dissolving polyethylene glycol and a cyclodextrin in an aqueous medium to prepare a mixed solution; and a cooling step of continuously or intermittently cooling the mixed solution in a state of flux to precipitate pseudopolyrotaxane particles. The pseudopolyrotaxane particles contain the polyethylene glycol which is included in the cavities of the cyclodextrin molecules in a skewered manner.Type: ApplicationFiled: December 5, 2011Publication date: November 7, 2013Applicants: ADVANCED SOFTMATERIALS INC., SUMITOMO SEIKA CHEMICALS CO., LTD.Inventors: Tomoaki Yamasaki, Shinya Okazaki, Hiroki Okazaki, Shigeki Hamamoto, Changming Zhao
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Patent number: 8519185Abstract: Glycolic acid having a high purity is obtained by subjecting glycolic acid or a glycolic acid solution containing contaminants to double-chamber electrodialysis combined with one or more treatments selected from among treatment with an activated carbon, treatment with an ion exchange resin, concentration treatment and cooling crystallization.Type: GrantFiled: October 26, 2006Date of Patent: August 27, 2013Assignee: Mitsui Chemicals, Inc.Inventors: Shinya Okazaki, Kaori Matoishi, Kiyoshi Itou
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Publication number: 20100022740Abstract: Glycolic acid having a high purity is obtained by subjecting glycolic acid or a glycolic acid solution containing contaminants to double-chamber electrodialysis combined with one or more treatments selected from among treatment with an activated carbon, treatment with an ion exchange resin, concentration treatment and cooling crystallization.Type: ApplicationFiled: October 26, 2006Publication date: January 28, 2010Applicant: Mitsui Chemicals, Inc.Inventors: Shinya Okazaki, Kaori Matoishi, Kiyoshi Itou
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Publication number: 20070072120Abstract: A method for producing a resin for a chemically amplified positive resist by polymerizing at least one monomer and/or at least one oligomer which is polymerized to provide a resin for a chemically amplified positive resist, in which two or more polymerization initiators are used to initiate the polymerization, thereby the resin is obtained at a high yield.Type: ApplicationFiled: September 28, 2006Publication date: March 29, 2007Applicant: Sumitomo Seika Chemicals Co., Ltd.Inventors: Shinya Okazaki, Masafumi Okamoto, Yusuke Fuji, Hiroaki Fujishima