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).
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Publication number: 20120199816Abstract: A photoelectric conversion device according to the present invention includes, between a pair of electrodes, an electron donor layer having an interdigitated shape in cross section comprising a stripe-like part in cross section and a base, a plurality of strip-like parts in cross section extending in a direction intersecting electrode main surfaces being formed at intervals in the stripe-like part in cross section; and an electron acceptor layer having an interdigitated shape in cross section comprising a stripe-like part in cross section and a base, a plurality of strip-like parts in cross section extending in a direction intersecting the electrode main surfaces being formed at intervals in the stripe-like part in cross section, the photoelectric conversion device further including an active layer in which the plurality of strip-like parts in cross section of the electron donor layer and the plurality of strip-like parts in cross section of the electron acceptor layer are alternately joined.Type: ApplicationFiled: August 2, 2010Publication date: August 9, 2012Applicant: KURARAY CO., LTD.Inventors: Go Tazaki, Motohiro Fukuda, Hiroyuki Ohgi, Akio Fujita
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Publication number: 20110318829Abstract: To provide a cell culture chamber and a cell culture method that are capable of effectively constructing an intercellular network in a culture space. 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: ApplicationFiled: September 9, 2011Publication date: December 29, 2011Applicant: KURARAY CO., LTD.Inventors: Go TAZAKI, Tomoko Kosaka, Motohiro Fukuda
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Publication number: 20110217725Abstract: 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: October 23, 2009Publication date: September 8, 2011Applicants: Kuraray Co., Ltd., Public University Corp. Yokohama City UniversityInventors: Yoko Itchoda, Go Tazaki, Motohiro Fukuda, Hitoshi Tsuruta, Hideki Taniguchi
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Publication number: 20110207215Abstract: To provide a cell storage method to store living cells while maintaining the functions of the living cells. An aspect of the cell storage method is a method to store living cells (40) by using a cell culture chamber (20) including a plurality of the microchambers (11), the method including: culturing the living cells by being adhered to the surfaces of a plurality of micro spaces; and after the culturing, pouring the culture medium (50) into the cell culture chamber (20) so as to cover the plurality of microchambers (11), and storing the living cells. The living cells are adhered to a cell culture chamber of an appropriate size and cultured to form a three-dimensional structure. This enables maintaining the three-dimensional structure of the living cells and storage of the living cells while maintaining the functions thereof.Type: ApplicationFiled: October 23, 2009Publication date: August 25, 2011Applicants: KURARAY CO., LTD., PUBLIC UNIVERSITY CORP. YOKOHAMA CITY UNIVERSITYInventors: Yoko Itchoda, Go Tazaki, Motohiro Fukuda, Hitoshi Tsuruta, Hideki Taniguchi
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Publication number: 20110042237Abstract: 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: ApplicationFiled: July 30, 2008Publication date: February 24, 2011Applicants: UNIVERSITY OF TSUKUBA, KURARAY CO., LTD.Inventors: Junji Fukuda, Hiroaki Suzuki, Kentaro Okamura, Masatoshi Hashimoto, Takahisa Anada, Hideki Kuramitsu, Go Tazaki
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Publication number: 20110045500Abstract: 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: ApplicationFiled: February 5, 2009Publication date: February 24, 2011Applicants: PUBLIC UNIVERSITY CORP. YOKOHAMA CITY UNIVERSITY, KURARAY CO., LTD.Inventors: Hideki Taniguchi, Yun-Wen Zheng, Go Tazaki, Tomoko Kosaka, Hitoshi Tsuruta, Motohiro Fukuda
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Publication number: 20100331216Abstract: 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: ApplicationFiled: February 5, 2009Publication date: December 30, 2010Applicants: National University Corporation Nagoya University, Kuraray Co., Ltd.Inventors: Masahiro Sokabe, Kishio Furuya, Go Tazaki, Hitoshi Tsuruta, Motohiro Fukuda
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Publication number: 20100190253Abstract: To provide a cell culture chamber and a cell culture method that are capable of effectively constructing an intercellular network in a culture space. 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: ApplicationFiled: June 16, 2008Publication date: July 29, 2010Applicant: KURARAY CO., LTD.Inventors: Go Tazaki, Tomoko Kosaka, Motohiro Fukuda
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Publication number: 20090170190Abstract: 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: ApplicationFiled: February 19, 2007Publication date: July 2, 2009Inventors: Taiji Nishi, Go Tazaki, Motohiro Fukuda, Michio Yazawa, Masayuki Takahashi
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Publication number: 20090149345Abstract: A microchannel array, a method of manufacturing the same, and a blood test method. The microchannel array is formed by joining first and second substrates, each including a fluid inlet and outlet on their surfaces. An internal space structure connects the fluid inlet and outlet, and includes an upstream flow channel connected with the fluid inlet, a downstream flow channel connected with the fluid outlet with a gap therebetween, and a micro flow channel connecting the upstream and downstream flow channels. A minimum distance from a center of a sectional surface of the micro flow channel to a side wall of the micro flow channel is smaller than that of the upstream and downstream flow channels. Each surface of the first and second substrates includes grooves for creating the upstream and downstream flow channels, and the surface of the second substrate has grooves for creating the micro flow channel.Type: ApplicationFiled: March 1, 2006Publication date: June 11, 2009Applicant: KURARAY CO., LTD.Inventors: Taiji Nishi, Motohiro Fukuda, Go Tazaki, Seiichi Kanai, Takenori Kitani, Naoto Fukuhara
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Publication number: 20090075366Abstract: It is intended to provide a cell culture chamber in a shape suitable for cell culture. It is also intended to provide a cell culture chamber which is inexpensive and facilitates observation. A cell culture chamber (100) includes a cover (10), a chamber body (20) and a plate-shaped base (30). The cover (10) covers an opening (21) of the chamber body (20). The chamber body (20) contains a culture such as cells. The plate base (30) covers a through hole (24) formed at the bottom (23) of the chamber body (20). Moreover, the plate base (30) has fine pits and projections formed thereon for culturing the culture.Type: ApplicationFiled: May 11, 2006Publication date: March 19, 2009Applicant: Kuraray Co., Ltd.Inventors: Go Tazaki, Taiji Nishi, Motohiro Fukuda, Yasuzo Kirita
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Publication number: 20090075363Abstract: 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: ApplicationFiled: April 25, 2007Publication date: March 19, 2009Applicant: Kuraray Co., LtdInventors: Yuji Morimoto, Taiji Nishi, Taisuke Kamada, Go Tazaki, Motohiro Fukuda