Patents by Inventor Go Tazaki
Go Tazaki 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: 10995197Abstract: Provided are a polyamide resin composition prepared by blending a polyamide resin (A) and a polyalcohol (B), wherein the proportion of the number of the amide groups to the number of the carbon atoms in the polyamide resin (A) is 0.080 to 0.140 and the blending amount of the polyalcohol (B) is 1 to 10 parts by mass relative to 100 parts by mass of the polyamide resin (A); and a molded article of the resin composition.Type: GrantFiled: December 16, 2015Date of Patent: May 4, 2021Assignee: KURARAY CO., LTD.Inventors: Kensuke Kamoshida, Hideaki Takeda, Go Tazaki
-
Patent number: 10906278Abstract: There is provided a multilayered tube for transporting liquid chemicals containing an outermost layer and an innermost layer, the innermost layer containing a polyamide (A), an impact modifier (B), and a carbon nanotube (C), wherein the number of projections each having a height of 5 ?m or more and a longitudinal width of 20 ?m or more, which are present on the surface of the innermost layer, is 2 or less per 1 mm2 of surface area; and the number of agglomerates each having a longitudinal width of 5 ?m or more, which are present in the cross section of the innermost layer, is 15 or less per 1 mm2 of cross-sectional area. There is also provided a polyamide resin composition constituting the innermost layer of the multilayered tube for transporting liquid chemicals.Type: GrantFiled: December 22, 2015Date of Patent: February 2, 2021Assignee: KURARAY CO., LTD.Inventors: Go Tazaki, Toshiaki Hasegawa
-
Patent number: 10836996Abstract: To provide a cell culture kit including cultured living cells of various donors, and a manufacturing method thereof. The cell culture kit includes a culture plate and living cells cultured thereon. The culture plate includes a plurality of microchambers (33) and living cells derived from various donors are adhered to surfaces of the plurality of microchambers (33). Specifically, living cells D1, D2, and D3 derived from various donors are adhered to the plurality of microchambers (33). In each microchamber (33), living cells derived from one donor or living cells derived from various donors may be cultured. The living cells derived from various donors are adhered and cultured in the cell culture kit as a whole, which makes it possible to provide a cell culture kit to conduct a test using cells derived from various donors.Type: GrantFiled: January 29, 2016Date of Patent: November 17, 2020Assignees: Corning Incorporated, Public University Corporation Yokohama City UniversityInventors: Yoko Itchoda, Go Tazaki, Motohiro Fukuda, Hitoshi Tsuruta, Hideki Taniguchi
-
Publication number: 20200239854Abstract: Provided are a method capable of evaluating adherent cells under an environment similar to an in vivo environment by a culture method similar to a two-dimensional culture, and applications thereof. An adherent cell culture method uses, as a culture chamber (10), a chamber in which two or more culture spaces each having an equivalent diameter (D) that is 1 to 5 times the diameter of a desired spheroid and each having a height (H) that is 0.3 to 5 times the equivalent diameter are arranged and a surface of each of the culture spaces has a water contact angle of 45 degrees or less. Spheroids of adherent cells are cultured in the respective culture spaces (11) arranged in the culture chamber (10).Type: ApplicationFiled: April 13, 2020Publication date: July 30, 2020Inventors: Satoru Ayano, Masaya Hosoda, Yoko Ejiri, Go Tazaki
-
Patent number: 10655107Abstract: Provided are a method capable of evaluating adherent cells under an environment similar to an in vivo environment by a culture method similar to a two-dimensional culture, and applications thereof. An adherent cell culture method uses, as a culture chamber (10), a chamber in which two or more culture spaces each having an equivalent diameter (D) that is 1 to 5 times the diameter of a desired spheroid and each having a height (H) that is 0.3 to 5 times the equivalent diameter are arranged and a surface of each of the culture spaces has a water contact angle of 45 degrees or less. Spheroids of adherent cells are cultured in the respective culture spaces (11) arranged in the culture chamber (10).Type: GrantFiled: September 20, 2012Date of Patent: May 19, 2020Assignee: Corning IncorporatedInventors: Yoko Ejiri, Satoru Ayano, Masaya Hosoda, Go Tazaki
-
Patent number: 10513685Abstract: Provided is a method that achieves control of embryoid body size and can induce differentiation in a state where the embryoid body size is controlled, by using a cell culture chamber having a plurality of microchambers formed therein. A culture method for causing differentiation of pluripotent mammalian cells uses a cell culture chamber (10) having a plurality of microchambers (11) formed on a culture surface. The cell culture chamber (10) has a culture surface formed of spaces in which the microchambers (11) have a space structure with a height of 10 ?m to 500 ?m and a bottom area of 100 ?m2 to 1 mm2. The culture method for causing differentiation of pluripotent mammalian cells includes culturing pluripotent mammalian cells to obtain a cell population at least partially differentiated into endoderm lineage cells, by using the cell culture chambers (10).Type: GrantFiled: March 23, 2011Date of Patent: December 24, 2019Assignees: CORNING INCORPORATED, PUBLIC UNIVERSITY CORPORATION YOKOHAMA CITY UNIVERSITYInventors: Yoko Itchoda, Go Tazaki, Masaya Hosoda, Motohiro Fukuda, Hideki Taniguchi, Yun-Wen Zheng, Keisuke Sekine
-
Patent number: 10000045Abstract: A multilayered tube for transporting fuel including an innermost layer (A), an outermost layer (B) and an intermediate layer (C), characterized by that: the innermost layer (A) and the outermost layer (B) include a resin composition including 40 mass % or more of semi-aromatic polyamide; a flexural modulus of a material constituting the intermediate layer (C) measured according to ISO 178 is 800 MPa or less; and it is used in an environment in which both the innermost layer (A) and the outermost layer (B) are contacted with biodiesel fuel. In addition, a fuel pump module including the multilayered tube for transporting fuel and a method for using them.Type: GrantFiled: March 9, 2016Date of Patent: June 19, 2018Assignee: KURARAY CO., LTD.Inventors: Go Tazaki, Hideaki Suzuki, Toshiaki Hasegawa
-
Publication number: 20180079190Abstract: A multilayered tube for transporting fuel including an innermost layer (A), an outermost layer (B) and an intermediate layer (C), characterized by that: the innermost layer (A) and the outermost layer (B) include a resin composition including 40 mass % or more of semi-aromatic polyamide; a flexural modulus of a material constituting the intermediate layer (C) measured according to ISO 178 is 800 MPa or less; and it is used in an environment in which both the innermost layer (A) and the outermost layer (B) are contacted with biodiesel fuel. In addition, a fuel pump module including the multilayered tube for transporting fuel and a method for using them.Type: ApplicationFiled: March 9, 2016Publication date: March 22, 2018Applicant: KURARAY CO., LTD.Inventors: Go TAZAKI, HIdeaki SUZUKI, Toshiaki HASEGAWA
-
Publication number: 20180009965Abstract: Provided are a polyamide resin composition prepared by blending a polyamide resin (A) and a polyalcohol (B), wherein the proportion of the number of the amide groups to the number of the carbon atoms in the polyamide resin (A) is 0.080 to 0.140 and the blending amount of the polyalcohol (B) is 1 to 10 parts by mass relative to 100 parts by mass of the polyamide resin (A); and a molded article of the resin composition.Type: ApplicationFiled: December 16, 2015Publication date: January 11, 2018Applicant: KURARAY CO., LTD.Inventors: Kensuke KAMOSHIDA, Hideaki TAKEDA, Go TAZAKI
-
Publication number: 20170368805Abstract: There is provided a multilayered tube for transporting liquid chemicals containing an outermost layer and an innermost layer, the innermost layer containing a polyamide (A), an impact modifier (B), and a carbon nanotube (C), wherein the number of projections each having a height of 5 ?m or more and a longitudinal width of 20 ?m or more, which are present on the surface of the innermost layer, is 2 or less per 1 mm2 of surface area; and the number of agglomerates each having a longitudinal width of 5 ?m or more, which are present in the cross section of the innermost layer, is 15 or less per 1 mm2 of cross-sectional area. There is also provided a polyamide resin composition constituting the innermost layer of the multilayered tube for transporting liquid chemicals.Type: ApplicationFiled: December 22, 2015Publication date: December 28, 2017Applicant: KURARAY CO., LTD.Inventors: Go TAZAKI, Toshiaki HASEGAWA
-
Patent number: 9428721Abstract: Provided is a cell culture method whereby an in vivo function can be sustained over a long period of time and culture can be conducted using the minimum number of cells required. The cell culture method includes culturing undifferentiated cells in a layered state in a partitioned micro-space and obtains differentiated cells. When screening a pharmaceutical agent, undifferentiated cells capable of differentiating into liver cells, intestinal epithelial cells, nerve cells, myocardial cells and vascular endothelial cells are preferred. Particularly, in the prediction of pharmacokinetics or the like for humans, human cells are preferred.Type: GrantFiled: February 5, 2009Date of Patent: August 30, 2016Assignees: Public University Corporation Yokohama City University, KURARAY Co., Ltd.Inventors: Hideki Taniguchi, Yun-Wen Zheng, Go Tazaki, Tomoko Kosaka, Hitoshi Tsuruta, Motohiro Fukuda
-
Publication number: 20160160175Abstract: To provide a cell culture kit including cultured living cells of various donors, and a manufacturing method thereof. The cell culture kit includes a culture plate and living cells cultured thereon. The culture plate includes a plurality of microchambers (33) and living cells derived from various donors are adhered to surfaces of the plurality of microchambers (33). Specifically, living cells D1, D2, and D3 derived from various donors are adhered to the plurality of microchambers (33). In each microchamber (33), living cells derived from one donor or living cells derived from various donors may be cultured. The living cells derived from various donors are adhered and cultured in the cell culture kit as a whole, which makes it possible to provide a cell culture kit to conduct a test using cells derived from various donors.Type: ApplicationFiled: January 29, 2016Publication date: June 9, 2016Applicants: KURARAY CO., LTD., Public University Corp. Yokohama City UniversityInventors: Yoko ITCHODA, Go Tazaki, Motohiro Fukuda, Hitoshi Tsuruta, Hideki Taniguchi
-
Patent number: 9290735Abstract: To provide a cell culture method capable of sustaining in-vivo functions for a long time by suppressing dedifferentiation. A cell culture method in accordance with the present invention is to culture cells in a multi-layered state in a minute partitioned space and to obtain a tissue structure having a function resembling an in-vivo function. When the cells are mammary gland epithelial cells, a hollow acinus-like structure can be formed. The minute partitioned space is particularly preferably a micro container in a cell culture container having a plurality of such micro containers on the surface.Type: GrantFiled: February 5, 2009Date of Patent: March 22, 2016Assignees: National University Corporation Nagoya University, KURARAY Co., Ltd.Inventors: Masahiro Sokabe, Kishio Furuya, Go Tazaki, Hitoshi Tsuruta, Motohiro Fukuda
-
Publication number: 20150079341Abstract: Disclosed is fabrication of a resin compact using a mold. The mold includes a resin mold body satisfies any one of conditions which are: a width of a protrusion is 5 nm or greater and less than 50 nm, an aspect ratio of the protrusion is 2 or greater, and Martens hardness is 200 or greater; the width of the protrusion is 50 nm or greater and less than 100 nm, the aspect ratio of the protrusion is 3 or greater, and Martens hardness is 200 or greater; and the width of the protrusion is 100 nm or greater and less than 1 ?m, the aspect ratio of the protrusion is 4 or greater, and Martens hardness is 150 or greater. The inversion pattern has a space between the adjacent protrusions less than twice a height of the protrusion. The mold further includes an adhesion layer and a release layer.Type: ApplicationFiled: September 16, 2013Publication date: March 19, 2015Applicants: Tokyo University of Sci. Ed. Foundation Admin. Org, KURARAY Co., Ltd.Inventors: Go TAZAKI, Toshiyuki Zento, Jun Taniguchi
-
Publication number: 20140227784Abstract: Provided are a method capable of evaluating adherent cells under an environment similar to an in vivo environment by a culture method similar to a two-dimensional culture, and applications thereof. An adherent cell culture method uses, as a culture chamber (10), a chamber in which two or more culture spaces each having an equivalent diameter (D) that is 1 to 5 times the diameter of a desired spheroid and each having a height (H) that is 0.3 to 5 times the equivalent diameter are arranged and a surface of each of the culture spaces has a water contact angle of 45 degrees or less. Spheroids of adherent cells are cultured in the respective culture spaces (11) arranged in the culture chamber (10).Type: ApplicationFiled: September 20, 2012Publication date: August 14, 2014Applicant: KURARAY Co., Ltd.Inventors: Yoko Ejiri, Satoru Ayano, Masaya Hosoda, Go Tazaki
-
Patent number: 8652833Abstract: To provide a cell culture chamber capable of reproducing a cell function in vivo, and a method of producing the same. The cell culture chamber according to the present invention has a concave-convex pattern formed on the surface on which cells are cultured. A concave portion of the concave-convex pattern includes cell culture portions and micro flow channels communicating with the cell culture portions. The bottom surface of each of the cell culture portions has a width 1.0 to 20 times an equivalent diameter of each of the cultured cells. A cell adhesion-inducing substance is formed only on the bottom surface and the side walls of the concave portion.Type: GrantFiled: April 25, 2007Date of Patent: February 18, 2014Assignee: Kuraray Co., Ltd.Inventors: Yuji Morimoto, Taiji Nishi, Taisuke Kamada, Go Tazaki, Motohiro Fukuda
-
Patent number: 8435782Abstract: An object of the present invention is to provide a cell culture chamber with which the survival rate of cells to be cultured can be increased, and a method of producing the same. A cell culture chamber according to the present invention includes a mass of projections formed of a plurality of microprojections 1 formed on a surface on which cells are cultured. The width or diameter of each of the microprojections 1 is in a range of 20 nm to 3 ?m, and the aspect ratio of each of the microprojections is in a range of 0.2 to 3.0. Thus, there can be provided a cell culture chamber most suitable for the adhesion and differentiation/proliferation of cells to be cultured.Type: GrantFiled: February 19, 2007Date of Patent: May 7, 2013Assignee: Kuraray Co., Ltd.Inventors: Taiji Nishi, Go Tazaki, Motohiro Fukuda, Michio Yazawa, Masayuki Takahashi
-
Patent number: 8415157Abstract: A cell culture chamber and a cell culture method that are capable of effectively constructing an intercellular network in a culture space are provided. A cell culture chamber (10)according to the present invention is a cell culture chamber (10)including a plurality of microchambers (11) formed on a surface thereof, characterized in that convex portions (side walls 12) that partition the microchambers (11) adjacent to each other are formed to prevent cells from being adhered to upper surfaces of the convex portions. Consequently, cells can be cultured exclusively within the microchambers (11), and an intercellular network can be constructed effectively.Type: GrantFiled: September 9, 2011Date of Patent: April 9, 2013Assignee: KURARAY Co., Ltd.Inventors: Go Tazaki, Tomoko Kosaka, Motohiro Fukuda
-
Publication number: 20130071932Abstract: Provided is a method that achieves control of embryoid body size and can induce differentiation in a state where the embryoid body size is controlled, by using a cell culture chamber having a plurality of microchambers formed therein. A culture method for causing differentiation of pluripotent mammalian cells uses a cell culture chamber (10) having a plurality of microchambers (11) formed on a culture surface. The cell culture chamber (10) has a culture surface formed of spaces in which the microchambers (11) have a space structure with a height of 10 ?m to 500 ?m and a bottom area of 100 ?m2 to 1 mm2. The culture method for causing differentiation of pluripotent mammalian cells includes culturing pluripotent mammalian cells to obtain a cell population at least partially differentiated into endoderm lineage cells, by using the cell culture chambers (10).Type: ApplicationFiled: March 23, 2011Publication date: March 21, 2013Applicants: Public University Corporation Yokohama City University, KURARAY Co., Ltd.Inventors: Yoko Itchoda, Go Tazaki, Masaya Hosoda, Motohiro Fukuda, Hideki Taniguchi, Yun-Wen Zheng, Keisuke Sekine
-
Patent number: 8303800Abstract: Provided is an electrochemical sensor device capable of micromachining a channel while maintaining its measurement sensitivity and of reliably quantitating an analyte in a trace amount of a sample. An electrochemical sensor device includes: a channel portion formed in a substrate; and working electrodes for subjecting an analyte in a solution flowing in the channel portion to electrochemical measurement, the electrochemical sensor device includes a plurality of measuring portions individually provided with the working electrodes, and each of the working electrodes has a plurality of conductive protrusion portions formed to protrude from a bottom surface of each of the measuring portions.Type: GrantFiled: July 30, 2008Date of Patent: November 6, 2012Assignees: University of Tsukuba, Kuraray Co., Ltd.Inventors: Junji Fukuda, Hiroaki Suzuki, Kentaro Okamura, Masatoshi Hashimoto, Takahisa Anada, Hideki Kuramitsu, Go Tazaki