Patents by Inventor Masafumi Goto
Masafumi Goto 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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Publication number: 20240100227Abstract: Provided is a novel device or a novel implantation device. The implantation device is one of the following: (1) an implantation device comprising a material (A) having a density of 12 mg/cm3 or more and a dissolution rate of 80% or less as determined after immersion of the material (A) in physiological saline at 37° C. for 24 hours; and (2) an implantation device comprising a material (A) having a dissolution rate of 80% or less as determined after immersion of the material (A) in physiological saline at 37° C. for 24 hours and a ratio of X/Y of 0.24 or more wherein X is a density (mg/cm3) of the material (A) and Y is a degree of swelling of the material (A) expressed in terms of fold increase as determined after immersion of the material (A) in physiological saline at 37° C. for 60 minutes.Type: ApplicationFiled: February 8, 2022Publication date: March 28, 2024Applicants: Shin-Etsu Chemical Co., Ltd., JAPAN VAM & POVAL CO., LTD., TOHOKU UNIVERSITYInventors: Shuhei KANESATO, Yoshihiro KIMURA, Akinobu OHARUDA, Keita ISHIBA, Masafumi GOTO
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Publication number: 20240091404Abstract: Provided is a novel device (implantation device) containing a gelatin. The implantation device is made of a bioabsorbable non-woven fabric containing a gelatin.Type: ApplicationFiled: February 8, 2022Publication date: March 21, 2024Applicants: Shin-Etsu Chemical Co., Ltd., JAPAN VAM & POVAL CO., LTD., TOHOKU UNIVERSITY, KYOTO MEDICAL PLANNING Co., LtdInventors: Shuhei KANESATO, Yoshihiro KIMURA, Akinobu OHARUDA, Masafumi GOTO
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Publication number: 20230263936Abstract: A cell or tissue embedding device having an aqueous gel serving as an immunoisolation layer, the aqueous gel containing, as components thereof, a denatured polyvinyl alcohol resin having an activated carbonyl group and a crosslinking agent is highly capable of supplying a physiologically active substance.Type: ApplicationFiled: May 2, 2023Publication date: August 24, 2023Inventors: Akinobu Oharuda, Yoshihiro Kimura, Masafumi Goto
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Patent number: 11684693Abstract: A cell or tissue embedding device having an aqueous gel serving as an immunoisolation layer, the aqueous gel containing, as components thereof, a denatured polyvinyl alcohol resin having an activated carbonyl group and a crosslinking agent is highly capable of supplying a physiologically active substance.Type: GrantFiled: February 23, 2018Date of Patent: June 27, 2023Assignees: Japan Vam & Poval Co., Ltd., National University Corporation Tohoku UniversityInventors: Akinobu Oharuda, Yoshihiro Kimura, Masafumi Goto
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Publication number: 20230070463Abstract: The present invention provides a novel angiogenesis device. The angiogenesis device comprises an angiogenic component and a polymer, and is used to induce angiogenesis at a site for implantation of a cell- or tissue-containing device. The polymer may comprise, for example, at least one or more polyvinyl alcohol resins (A) selected from a modified polyvinyl alcohol resin having an active carbonyl group (A1), a polyvinyl alcohol resin having a triad syndiotacticity of 32 to 40% (A2), and a polyvinyl alcohol resin having a degree of saponification of 97 mol % or more (A3).Type: ApplicationFiled: February 3, 2021Publication date: March 9, 2023Applicants: Shin-Etsu Chemical Co., Ltd., JAPAN VAM & POVAL CO., LTD., TOHOKU UNIVERSITYInventors: Shuhei KANESATO, Yoshihiro KIMURA, Akinobu OHARUDA, Masafumi GOTO
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Publication number: 20230076461Abstract: The present invention provides a novel angiogenesis device. The angiogenesis device comprises an angiogenic component and a polymer. The polymer may comprise, for example, at least one or more polyvinyl alcohol resins (A) selected from a modified polyvinyl alcohol resin having an active carbonyl group (A1), a polyvinyl alcohol resin having a triad syndiotacticity of 32 to 40% (A2), and a polyvinyl alcohol resin having a degree of saponification of 97 mol % or more (A3).Type: ApplicationFiled: February 3, 2021Publication date: March 9, 2023Applicants: Shin-Etsu Chemical Co., Ltd., JAPAN VAM & POVAL CO., LTD., TOHOKU UNIVERSITYInventors: Shuhei KANESATO, Yoshihiro KIMURA, Akinobu OHARUDA, Masafumi GOTO
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Publication number: 20210079354Abstract: Provided is a method for efficiently and stably separating cells having a high biological activity from a biological tissue, by using a degrading-enzyme composition, which is prepared by adding an enzyme for degrading a major protein of the biological tissue in an amount determined depending on the composition of the major protein to a predetermined amount of a neutral protease and/or a protease derived from Clostridium sp. According to this method, the type and amount of protein-degrading enzyme to be used for isolating cells can be determined from the composition of a major protein of the biological tissue. Thus, cells having a high biological activity can be efficiently separated while reducing the amount of protein-degrading enzyme to be used.Type: ApplicationFiled: November 16, 2020Publication date: March 18, 2021Inventors: Masafumi Goto, Kazutaka Murayama, Youhei Yamagata, Kimiko Watanabe
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Patent number: 10870833Abstract: Provided is a method for efficiently and stably separating cells having a high biological activity from a biological tissue, by using a degrading-enzyme composition, which is prepared by adding an enzyme for degrading a major protein of the biological tissue in an amount determined depending on the composition of the major protein to a predetermined amount of a neutral protease and/or a protease derived from Clostridium sp. According to this method, the type and amount of protein-degrading enzyme to be used for isolating cells can be determined from the composition of a major protein of the biological tissue. Thus, cells having a high biological activity can be efficiently separated while reducing the amount of protein-degrading enzyme to be used.Type: GrantFiled: August 22, 2018Date of Patent: December 22, 2020Assignees: TOHOKU UNIVERSITY, MEUI SEIKA PHARMA CO., LTD., NATIONAL UNIVERSITY CORPORATION TOKYO UNIVERSITY OF AGRICULTURE AND TECHNOLOGYInventors: Masafumi Goto, Kazutaka Murayama, Youhei Yamagata, Kimiko Watanabe
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Publication number: 20200231960Abstract: To provide a cell or tissue embedding device highly capable of supplying a physiologically active substance, by curbing the reduction of living cells or living tissue in the process of preparing a PVA gel containing the living cells or living tissue. An aqueous gel to form an immunoisolation layer of a cell or tissue embedding device has, as its component, a polyvinyl alcohol resin having a syndiotacticity of 32 to 40% in triad.Type: ApplicationFiled: February 23, 2018Publication date: July 23, 2020Inventors: Akinobu Oharuda, Yoshihiro Kimura, Masafumi Goto
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Patent number: 10719082Abstract: The guidepath includes: a magnet guide tape which carries S pole, and guides a carrier vehicle in a first direction by the S pole by being arranged on a floor so as to extend in the first direction; a magnet guide tape which carries S pole, and guides the carrier vehicle in a second direction by the S pole by being arranged on the floor so as to extend in a second direction which intersects the first direction; and a magnetic body tape which is arranged at a side of the magnet guide tape at a position above which a marker sensor passes upon the carrier vehicle being guided by the magnet guide tape, and suppresses N pole.Type: GrantFiled: May 15, 2019Date of Patent: July 21, 2020Assignee: HONDA MOTOR CO., LTD.Inventors: Takuo Kobayashi, Takuya Furuno, Yoshito Otake, Masafumi Goto, Keisuke Oya, Tetsuro Yamanobe, Nobuhiro Nanba
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Publication number: 20190365947Abstract: To provide a cell or tissue embedding device highly capable of supplying a physiologically active substance, by curbing the reduction of living cells or living tissue in the process of preparing a PVA gel containing the living cells or living tissue. An aqueous gel to form an immunoisolation layer of a cell or tissue embedding device has a denatured polyvinyl alcohol resin having an activated carbonyl group (A) and a crosslinking agent (B) as its components.Type: ApplicationFiled: February 23, 2018Publication date: December 5, 2019Inventors: Akinobu Oharuda, Yoshihiro Kimura, Masafumi Goto
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Publication number: 20190361461Abstract: The guidepath includes: a magnet guide tape which carries S pole, and guides a carrier vehicle in a first direction by the S pole by being arranged on a floor so as to extend in the first direction; a magnet guide tape which carries S pole, and guides the carrier vehicle in a second direction by the S pole by being arranged on the floor so as to extend in a second direction which intersects the first direction; and a magnetic body tape which is arranged at a side of the magnet guide tape at a position above which a marker sensor passes upon the carrier vehicle being guided by the magnet guide tape, and suppresses N pole.Type: ApplicationFiled: May 15, 2019Publication date: November 28, 2019Inventors: Takuo Kobayashi, Takuya Furuno, Yoshito Otake, Masafumi Goto, Keisuke Oya, Tetsuro Yamanobe, Nobuhiro Nanba
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Publication number: 20190167572Abstract: A capsule device, which can induce vascular bed formation and formation of a space for cell transplantation in subcutaneous tissue in which the device is implanted, is provided. A sustained drug release capsule device, which is to be subcutaneously implanted for subcutaneous sustained release of an angiogenesis-inducing factor as well as formation of a vascular bed as a basis for cell transplantation and a space for cell transplantation in cell therapy, the capsule being made of a material which is not soluble in a biological body and does not adhere to a biological body, and having micropores for sustained release of the angiogenesis-inducing factor.Type: ApplicationFiled: November 7, 2016Publication date: June 6, 2019Applicant: TOHOKU UNIVERSITYInventors: Toshiaki ABE, Nobuhiro NAGAI, Shinji YAMADA, Masafumi GOTO, Kozue IMURA, Hirokazu KAJI
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Publication number: 20180362934Abstract: Provided is a method for efficiently and stably separating cells having a high biological activity from a biological tissue, by using a degrading-enzyme composition, which is prepared by adding an enzyme for degrading a major protein of the biological tissue in an amount determined depending on the composition of the major protein to a predetermined amount of a neutral protease and/or a protease derived from Clostridium sp. According to this method, the type and amount of protein-degrading enzyme to be used for isolating cells can be determined from the composition of a major protein of the biological tissue. Thus, cells having a high biological activity can be efficiently separated while reducing the amount of protein-degrading enzyme to be used.Type: ApplicationFiled: August 22, 2018Publication date: December 20, 2018Inventors: Masafumi Goto, Kazutaka Murayama, Youhei Yamagata, Kimiko Watanabe
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Patent number: 9462801Abstract: An object of the present invention is to provide a method for preserving pancreatic islet, a container for preserving pancreatic islet and a kit for transplanting pancreatic islet in order to effectively preserve the pancreatic islet. The present invention presents; a method for preserving a liquid including pancreatic islet in a container for preserving pancreatic islet, wherein at least a part of the container wall face consists of a film having an oxygen permeation coefficient of 2500 cm3/m2·day·atm or greater; a method for preserving a liquid including pancreatic islet in a container for preserving pancreatic islet, wherein at least a part of the container wall face consists of a film having a carbon dioxide permeation coefficient of 1000 to 20000 cm3/m2·day·atm; and a container for preserving pancreatic islet for use in the above-described method, and a kit for transplanting pancreatic islet comprising the container for preserving pancreatic islet.Type: GrantFiled: July 3, 2007Date of Patent: October 11, 2016Assignees: NIPRO CORPORATION, TOHOKU UNIVERSITYInventors: Masafumi Goto, Yoshihiro Yoshikawa, Kei Matsuo
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Patent number: 9354240Abstract: The present invention relates to a method for obtaining cells or cell populations having a high biological activity from a biological tissue by enzymatic isolation, and probes for use in the method; more specifically to a method for analyzing a biological tissue, comprising applying two or more probes respectively containing biological-component binding domains through which two or more proteins bind to a predetermined biological component, to an isolated biological tissue, and analyzing binding amounts of the probes to the biological tissue.Type: GrantFiled: March 15, 2012Date of Patent: May 31, 2016Assignees: TOHOKU UNIVERSITY, MEIJI SEIKA PHARMA CO., LTD.Inventors: Youhei Yamagata, Masafumi Goto, Kimiko Watanabe
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Publication number: 20150368615Abstract: Provided is a method for efficiently and stably separating cells having a high biological activity from a biological tissue, by using a degrading-enzyme composition, which is prepared by adding an enzyme for degrading a major protein of the biological tissue in an amount determined depending on the composition of the major protein to a predetermined amount of a neutral protease and/or a protease derived from Clostridium sp. According to this method, the type and amount of protein-degrading enzyme to be used for isolating cells can be determined from the composition of a major protein of the biological tissue. Thus, cells having a high biological activity can be efficiently separated while reducing the amount of protein-degrading enzyme to be used.Type: ApplicationFiled: January 31, 2014Publication date: December 24, 2015Inventors: Masafumi Goto, Kazutaka Murayama, Youhei Yamagata, Kimiko Watanabe
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Publication number: 20130345087Abstract: The present invention relates to a method for obtaining cells or cell populations having a high biological activity from a biological tissue by enzymatic isolation, and probes for use in the method; more specifically to a method for analyzing a biological tissue, comprising applying two or more probes respectively containing biological-component binding domains through which two or more proteins bind to a predetermined biological component, to an isolated biological tissue, and analyzing binding amounts of the probes to the biological tissue.Type: ApplicationFiled: March 15, 2012Publication date: December 26, 2013Applicants: MEIJI SEIKA PHARMA CO., LTD., TOHOKU UNIVERISTYInventors: Youhei Yamagata, Masafumi Goto, Kimiko Watanabe
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Publication number: 20110294192Abstract: A fusion collagenase in which an affinity tag is added to the carboxyl terminal of a collagenase was expressed as a recombinant protein. It was found that a collagenase having a collagen-binding domain can be selectively collected by purifying the obtained fusion collagenase by affinity chromatography.Type: ApplicationFiled: November 6, 2009Publication date: December 1, 2011Applicants: TOHOKU UNIVERSITY, MEIJI SEIKA PHARMA CO., LTD.Inventors: Takayoshi Fukushima, Kengo Yokoyama, Koichiro Murashima, Masafumi Goto, Youhei Yamagata
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Publication number: 20080009061Abstract: An object of the present invention is to provide a method for preserving pancreatic islet, a container for preserving pancreatic islet and a kit for transplanting pancreatic islet in order to effectively preserve the pancreatic islet. The present invention presents; a method for preserving a liquid including pancreatic islet in a container for preserving pancreatic islet, wherein at least a part of the container wall face consists of a film having an oxygen permeation coefficient of 2500 cm3/m2·day·atm or greater; a method for preserving a liquid including pancreatic islet in a container for preserving pancreatic islet, wherein at least a part of the container wall face consists of a film having a carbon dioxide permeation coefficient of 1000 to 20000 cm3/m2·day·atm; and a container for preserving pancreatic islet for use in the above-described method, and a kit for transplanting pancreatic islet comprising the container for preserving pancreatic islet.Type: ApplicationFiled: July 3, 2007Publication date: January 10, 2008Applicants: NIPRO CORPORATION, TOHOKU UNIVERSITYInventors: Masafumi Goto, Yoshihiro Yoshikawa, Kei Matsuo