Patents by Inventor Masatoshi Kuroda
Masatoshi Kuroda 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: 20250058955Abstract: A liquid-filled combination container includes a container having oxygen permeability and containing liquid in a containing portion, a barrier container having oxygen barrier properties and accommodating the container, at least one oxygen reactant that can react with oxygen in the barrier container, and a fluorescent material that varies in fluorescence time or fluorescence intensity according to a surrounding oxygen concentration. The oxygen reactant is fixed to at least any one of an outer surface of the container and an inner surface of the barrier container. The fluorescent material is provided on an inner surface of the container at a fluorescent material installation location apart from the containing portion of the container.Type: ApplicationFiled: December 28, 2022Publication date: February 20, 2025Applicant: Dai Nippon Printing Co., Ltd.Inventors: Kazumasa YAMAKI, Takuma BABA, Kouichi TATSUMI, Noriko KUMAZAWA, Noriko NAKATA, Masatoshi KURODA
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Patent number: 11398032Abstract: [Problem] To evaluate objective cell groups by estimating a mixing ratio of objective cell group without affecting treatment itself and its production process when the objective cell groups include plural kinds of cell groups having different attributes, and to provide an image analysis system and a culture management system capable of accurately perform a quality control and a production control with low cost. [Solution] The cell quality evaluation system 1 detects a feature amount in each cell easily analyzable from images, and estimates a mixing ratio of each of plural kinds of cell groups included in the objective cell groups based on a distribution of the detected feature amount and pre-recorded information of the feature amount. As the feature amount, the embodiment uses a migration speed of each cell, easily distinguishable by analyzing tracking of each cell from plural images in time series.Type: GrantFiled: July 13, 2017Date of Patent: July 26, 2022Assignees: DAI NIPPON PRINTING CO., LTD., TERUMO KABUSHIKI KAISHAInventors: Ryoma Bise, Yoshitaka Maeda, Masatoshi Kuroda, Kazumasa Yamaki, Ryohei Takeuchi, Fumiya Ohashi, Kouichirou Yori
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Publication number: 20190236784Abstract: [Problem] To evaluate objective cell groups by estimating a mixing ratio of objective cell group without affecting treatment itself and its production process when the objective cell groups include plural kinds of cell groups having different attributes, and to provide an image analysis system and a culture management system capable of accurately perform a quality control and a production control with low cost. [Solution] The cell quality evaluation system 1 detects a feature amount in each cell easily analyzable from images, and estimates a mixing ratio of each of plural kinds of cell groups included in the objective cell groups based on a distribution of the detected feature amount and pre-recorded information of the feature amount. As the feature amount, the embodiment uses a migration speed of each cell, easily distinguishable by analyzing tracking of each cell from plural images in time series.Type: ApplicationFiled: July 13, 2017Publication date: August 1, 2019Inventors: Ryoma BISE, Yoshitaka MAEDA, Masatoshi KURODA, Kazumasa YAMAKI, Ryohei TAKEUCHI, Fumiya OHASHI, Kouichirou YORI
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Publication number: 20190192271Abstract: In accordance with the present invention, an implant in which cells are arranged in a fine pattern that is available for immediate implantation and that does not need to be removed after implantation is provided. The present invention relates to a cell-containing sheet, which comprises cells and a support comprising a bioabsorbable material, in which the support has a cell adhesion protein-containing layer on the surface thereof and the cells form a pattern on the support.Type: ApplicationFiled: February 28, 2019Publication date: June 27, 2019Applicants: National University Corporation Tokyo Medical and Dental University, DAI NIPPON PRINTING CO., LTD.Inventors: Ikuo MORITA, Akiko KOBAYASHI, Hideshi HATTORI, Masatoshi KURODA
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Patent number: 10258456Abstract: In accordance with the present invention, an implant in which cells are arranged in a fine pattern that is available for immediate implantation and that does not need to be removed after implantation is provided. The present invention relates to a cell-containing sheet, which comprises cells and a support comprising a bioabsorbable material, in which the support has a cell adhesion protein-containing layer on the surface thereof and the cells form a pattern on the support.Type: GrantFiled: July 20, 2016Date of Patent: April 16, 2019Assignees: National University Corporation Tokyo Medical and Dental University, DAI NIPPON PRINTING CO., LTD.Inventors: Ikuo Morita, Akiko Kobayashi, Hideshi Hattori, Masatoshi Kuroda
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Patent number: 10219888Abstract: In accordance with the present invention, an implant in which cells are arranged in a fine pattern that is available for immediate implantation and that does not need to be removed after implantation is provided. The present invention relates to a cell-containing sheet, which comprises cells and a support comprising a bioabsorbable material, in which the support has a cell adhesion protein-containing layer on the surface thereof and the cells form a pattern on the support.Type: GrantFiled: June 19, 2006Date of Patent: March 5, 2019Assignees: National University Corporation Tokyo Medical and Dental University, DAI NIPPON PRINTING CO., LTD.Inventors: Ikuo Morita, Akiko Kobayashi, Hideshi Hattori, Masatoshi Kuroda
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Publication number: 20170226456Abstract: This invention provides a cost-effective technique for mass-production of a cell culture vessel that allows mass cell culture to be performed in a manner that allows cells to be stably detached from the culture vessel. Specifically, the invention provides a method for producing a cell culture vessel suitable for large-capacity culture comprising cutting a long-sized cell support film to obtain a sheet-like cell support film, fixing the film to a first member, which is not closed, and bonding other members thereto. Thus, a cell culture vessel comprising a container section in which a cell support film is fixed to an inner wall surface can be produced.Type: ApplicationFiled: January 23, 2017Publication date: August 10, 2017Applicant: Dai Nippon Printing Co., Ltd.Inventors: Masatoshi Kuroda, Katsunori Tsuchiya, Masahiko Hase, Taro Nagai, Yumiko Narita, Kazumasa Yamaki
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Patent number: 9587219Abstract: This invention provides a cost-effective technique for mass-production of a cell culture vessel that allows mass cell culture to be performed in a manner that allows cells to be stably detached from the culture vessel. Specifically, the invention provides a method for producing a cell culture vessel suitable for large-capacity culture comprising cutting a long-sized cell support film to obtain a sheet-like cell support film, fixing the film to a first member, which is not closed, and bonding other members thereto. Thus, a cell culture vessel comprising a container section in which a cell support film is fixed to an inner wall surface can be produced.Type: GrantFiled: October 29, 2012Date of Patent: March 7, 2017Assignee: Dai Nippon Printing Co., Ltd.Inventors: Masatoshi Kuroda, Katsunori Tsuchiya, Masahiko Hase, Taro Nagai, Yumiko Narita, Kazumasa Yamaki
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Publication number: 20160324623Abstract: In accordance with the present invention, an implant in which cells are arranged in a fine pattern that is available for immediate implantation and that does not need to be removed after implantation is provided. The present invention relates to a cell-containing sheet, which comprises cells and a support comprising a bioabsorbable material, in which the support has a cell adhesion protein-containing layer on the surface thereof and the cells form a pattern on the support.Type: ApplicationFiled: July 20, 2016Publication date: November 10, 2016Applicants: Tokyo Medical and Dental University, DAI NIPPON PRINTING CO., LTD.Inventors: Ikuo MORITA, Akiko KOBAYASHI, Hideshi HATTORI, Masatoshi KURODA
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Patent number: 9249386Abstract: A main object of the present invention is to provide a cell transfer substrate capable of transplanting cells, maintaining a pattern as it is, on a living body tissue or the like, even when: the size of the cell sheet is extremely small; the cells are cultured sparsely; the cells are in a form of a small colony; or the cells are cultured in a pattern, for example, as a blood vessel, a vessel network such as a lymphatic vessel, or a nerve network, and to provide a substrate for cell transfer to be used for the cell transfer substrate. In order to achieve the above-mentioned object, the present invention provides a substrate for cell transfer comprising: a polymer base material; an intermediate layer formed on the polymer base material; and a cell transfer layer formed on the intermediate layer.Type: GrantFiled: June 5, 2006Date of Patent: February 2, 2016Assignee: DAI NIPPON PRINTING CO., LTD.Inventors: Hideshi Hattori, Masatoshi Kuroda
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Patent number: 9127270Abstract: This invention provides a cell pattern recovery tool comprising a base material layer having a surface subjected to easy adhesion treatment, a temperature responsive polymer layer that is provided on the base material layer and has a surface subjected to silane treatment, and a cell adhesion inhibiting material layer provided on the temperature responsive polymer layer. According to the present invention, a cell pattern can be rapidly recovered while maintaining the cell pattern stably and reliably under minimally invasive conditions for the cells.Type: GrantFiled: August 11, 2009Date of Patent: September 8, 2015Assignees: TOKYO WOMEN'S MEDICAL UNIVERSITY, DAI NIPPON PRINTING CO., LTD.Inventors: Teruo Okano, Masayuki Yamato, Tatsuya Shimizu, Masatoshi Kuroda
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Patent number: 9090479Abstract: Ceramic powder having a BET specific surface area within a range of from 0.1 to 2.0 m2/g as measured according to the N2 absorption method and an average particle diameter within a range of from 0.8 to 100 ?m and composed of titanium oxide or a titanate; a dielectric composite material containing a synthetic resin and the ceramic powder; and a dielectric antenna with an antenna part formed of a conductor circuit provided on a dielectric substrate formed from the dielectric composite material.Type: GrantFiled: September 7, 2009Date of Patent: July 28, 2015Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., TODA KOGYO CORP.Inventors: Masatoshi Kuroda, Takahisa Yamashita, Kazutoshi Sanada, Shinsuke Maruyama
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Publication number: 20140326391Abstract: This invention provides a cost-effective technique for mass-production of a cell culture vessel that allows mass cell culture to be performed in a manner that allows cells to be stably detached from the culture vessel. Specifically, the invention provides a method for producing a cell culture vessel suitable for large-capacity culture comprising cutting a long-sized cell support film to obtain a sheet-like cell support film, fixing the film to a first member, which is not closed, and bonding other members thereto. Thus, a cell culture vessel comprising a container section in which a cell support film is fixed to an inner wall surface can be produced.Type: ApplicationFiled: October 29, 2012Publication date: November 6, 2014Applicant: Dai Nippon Printing Co., Ltd.Inventors: Masatoshi Kuroda, Katsunori Tsuchiya, Masahiko Hase, Taro Nagai, Yumiko Narita, Kazumasa Yamaki
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Patent number: 8835173Abstract: An object of the present invention is to provide a means capable of transferring a cell sheet, a cell pattern or the like to a desired material at a high speed. The present invention provides a substrate for cell culture comprising a base and a cell adhesive region formed on a surface of the base, wherein the cell adhesive region is formed of a film that is rendered cell adhesive by applying an oxidation treatment and/or a decomposition treatment to a cell-adhesion inhibitory hydrophilic film containing an organic compound having a carbon-oxygen bond.Type: GrantFiled: May 29, 2007Date of Patent: September 16, 2014Assignee: Dai Nippon Printing Co., Ltd.Inventors: Hideshi Hattori, Norihiko Okochi, Masatoshi Kuroda, Kazunari Ikeda
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Patent number: 8741645Abstract: The present invention provides a method for performing a biological test under conditions in which an artificially prepared cell pattern with initial position coordinates that can be determined is three-dimensionally cultured within a gelled matrix. The present invention relates to a biological test method that comprises testing a biological indicator with reference to at least one selected from the group consisting of cell proliferation, cell movement, and cell differentiation in a cell pattern substantially embedded in gel. The present invention also relates to a kit for the biological test method.Type: GrantFiled: April 22, 2011Date of Patent: June 3, 2014Assignee: Dai Nippon Printing Co., Ltd.Inventors: Hideshi Hattori, Norihiko Okochi, Masatoshi Kuroda, Masahiko Hase
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Patent number: 8592139Abstract: The present invention provides a method for performing a biological test under conditions in which an artificially prepared cell pattern with initial position coordinates that can be determined is three-dimensionally cultured within a gelled matrix. The present invention relates to a biological test method that comprises testing a biological indicator with reference to at least one selected from the group consisting of cell proliferation, cell movement, and cell differentiation in a cell pattern substantially embedded in gel. The present invention also relates to a kit for the biological test method.Type: GrantFiled: November 8, 2007Date of Patent: November 26, 2013Assignee: Dai Nippon Printing Co., Ltd.Inventors: Hideshi Hattori, Norihiko Okochi, Masatoshi Kuroda, Masahiko Hase
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Publication number: 20130234912Abstract: An antenna apparatus capable of improving antenna characteristics as well as miniaturizing a size is provided. An antenna apparatus includes a base, an antenna conductor, and a terminal as an external connection terminal. The base is made of a dielectric composite material containing resin and ceramic powder. The antenna conductor is arranged on a surface of the base. The terminal is electrically connected to the antenna conductor. A relative permittivity (?r) and a dielectric tangent (tan ?) of the dielectric composite material satisfy a relation of: tan ??0.0024×e(0.0341×?r).Type: ApplicationFiled: March 5, 2013Publication date: September 12, 2013Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC PRINTED CIRCUITS, INC.Inventors: Masahiko KOUCHI, Katsuyuki IMAI, Masatoshi KURODA, Rikio TANAKA
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Patent number: 8391019Abstract: A connection terminal includes a frame body including first and second support parts positioned to face each other; and a third support part having first and second ends connected to an end of the first support part and an end of the second support part, respectively; first elastic contact pieces provided on the first support part on a first side from which a terminal is to be inserted and having respective first contact parts configured to contact a peripheral surface of the terminal; second elastic contact pieces provided on the second support part on the first side and having respective second contact parts configured to contact the peripheral surface of the terminal and positioned to face the first contact parts; and a third elastic contact piece provided on the frame body on a second side opposite to the first side and configured to contact an end portion of the terminal.Type: GrantFiled: September 3, 2010Date of Patent: March 5, 2013Assignee: Mitsumi Electric Co., Ltd.Inventors: Masatoshi Kuroda, Toru Yoshino, Eiji Yoshida, Hirotaka Yamamoto
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Publication number: 20110227796Abstract: Ceramic powder having a BET specific surface area within a range of from 0.1 to 2.0 m2/g as measured according to the N2 absorption method and an average particle diameter within a range of from 0.8 to 100 ?m and composed of titanium oxide or a titanate; a dielectric composite material containing a synthetic resin and the ceramic powder; and a dielectric antenna with an antenna part formed of a conductor circuit provided on a dielectric substrate formed from the dielectric composite material.Type: ApplicationFiled: September 7, 2009Publication date: September 22, 2011Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD, TODA KOGYO CORP.Inventors: Masatoshi Kuroda, Takahisa Yamashita, Kazutoshi Sanada, Shinsuke Maruyama
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Publication number: 20110207220Abstract: This invention provides a cell pattern recovery tool comprising a base material layer having a surface subjected to easy adhesion treatment, a temperature responsive polymer layer that is provided on the base material layer and has a surface subjected to silane treatment, and a cell adhesion inhibiting material layer provided on the temperature responsive polymer layer. According to the present invention, a cell pattern can be rapidly recovered while maintaining the cell pattern stably and reliably under minimally invasive conditions for the cells.Type: ApplicationFiled: August 11, 2009Publication date: August 25, 2011Applicants: TOKYO WOMEN'S MEDICAL UNIVERSITY, DAI NIPPON PRINTING CO., LTD.Inventors: Teruo Okano, Masayuki Yamato, Tatsuya Shimizu, Masatoshi Kuroda