Patents by Inventor Takeshi Ikeya
Takeshi Ikeya 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: 9850334Abstract: A method for manufacturing a polymer of which structure is exactly controlled is disclosed.Type: GrantFiled: April 13, 2015Date of Patent: December 26, 2017Assignee: TOYO GOSEI CO., LTD.Inventors: Yuki Kawakami, Michiya Naito, Takeshi Ikeya
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Publication number: 20170037169Abstract: A method for manufacturing a polymer of which structure is exactly controlled is disclosed.Type: ApplicationFiled: April 13, 2015Publication date: February 9, 2017Applicant: TOYO GOSEI CO., LTD.Inventors: Yuki KAWAKAMI, Michiya NAITO, Takeshi IKEYA
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Publication number: 20100216245Abstract: The present invention provides a frozen cell immobilized product which is obtained by applying a technique for freezing cultured cells to a technique for forming primary hepatocyte spheroids through co-culturing, and which can improve performance in an examination or a test using the technique for forming primary hepatocyte spheroids; a primary hepatocyte culture tool; and a method for producing the primary hepatocyte culture tool. According to the invention, a cell-adhesion region of a culture substrate is defined in a pattern; animal-derived adherent cells are cultured on the cell-adhesion region; and the cultured cells are frozen together with a freezing culture medium.Type: ApplicationFiled: September 11, 2008Publication date: August 26, 2010Applicants: NATIONAL CENTER FOR CHILD HEALTH AND DEVELOPMENT, TOYO GOSEI CO., LTD.Inventors: Shin Enosawa, Yoshitaka Miyamoto, Takeshi Ikeya
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Patent number: 7605191Abstract: The invention provides a photosensitive resin which can readily form, through photo-crosslinking, a surface coating which has hydrophilicity and high bioadaptability; a photosensitive composition containing the photosensitive resin; and a photo-crosslinked structure obtained from the photosensitive composition.Type: GrantFiled: March 31, 2006Date of Patent: October 20, 2009Assignee: Toyo Gosei Co., Ltd.Inventors: Takeshi Ikeya, Toru Shibuya, Kana Miyazaki
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Publication number: 20090181158Abstract: To produce a cell culture container which is suitable for use in, for example, biochemical experiments, clinical experiments, and research and development of drugs. The production of the cell culture container includes providing a cell culture container base 1 having a plurality of wells serving as regions for culturing cells; applying a hydrophilic photosensitive composition to the bottom surface of each of the wells, to thereby form a coating 3; subjecting the coating 3 to patternwise light exposure; and removing an uncured portion of the coating through development, to thereby yield a cell culture container having, on the bottom surface of each well, a patterned hydrophilic coating layer formed of a photo-cured product.Type: ApplicationFiled: April 24, 2007Publication date: July 16, 2009Applicant: Toyo Gosei Co., Ltd.Inventors: Takeshi Ikeya, Masaharu Watanabe, Kana Miyazaki, Toru Shibuya
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Patent number: 7252912Abstract: A polymer composite comprises a base material, and a polymer membrane provided on at least a part of the base material, the polymer membrane having at least hydrophilicity, and the polymer composite is used in a state exposed to water or a water-based solvent. The polymer membrane is a resin film formed by photo-crosslinking a photosensitive resin composition consisting essentially of a water-soluble polymer, and during crosslinking of the photosensitive resin composition, some of photosensitive groups of the photosensitive resin composition are bound to amino groups fixed to the surface of the base material, whereby the resin film is fixed to the base material.Type: GrantFiled: March 29, 2005Date of Patent: August 7, 2007Assignees: Toyo Gosei Co., Ltd.Inventors: Kazunori Kataoka, Akihiro Hirano, Takeshi Ikeya, Toru Shibuya
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Publication number: 20060235103Abstract: The invention provides a photosensitive resin which can readily form, through photo-crosslinking, a surface coating which has hydrophilicity and high bioadaptability; a photosensitive composition containing the photosensitive resin; and a photo-crosslinked structure obtained from the photosensitive composition.Type: ApplicationFiled: March 31, 2006Publication date: October 19, 2006Inventors: Takeshi Ikeya, Toru Shibuya, Kana Miyazaki
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Publication number: 20060222876Abstract: A polymer composite comprises a base material, and a polymer membrane provided on at least a part of the base material, the polymer membrane having at least hydrophilicity, and the polymer composite is used in a state exposed to water or a water-based solvent. The polymer membrane is a resin film formed by photo-crosslinking a photosensitive resin composition consisting essentially of a water-soluble polymer, and during crosslinking of the photosensitive resin composition, some of photosensitive groups of the photosensitive resin composition are bound to amino groups fixed to the surface of the base material, whereby the resin film is fixed to the base material.Type: ApplicationFiled: March 29, 2005Publication date: October 5, 2006Inventors: Kazunori Kataoka, Akihiro Hirano, Takeshi Ikeya, Toru Shibuya
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Patent number: 6207219Abstract: A method for manufacturing a thin-film solar cell substrate of group IB, IIIB and VIB elements of the Periodic Table, by using an apparatus for depositing selenium (Se) on the thin-film solar cell substrate. The apparatus has a base with gas inlet and outlet pipes. A bell jar is placed on top of the base with an O-ring interposed between them. A thin-film solar cell precursor and Se powder are placed in a recess formed in a lower heating jig, and the lower heating jig is positioned on the base. An upper heating jig is placed on top of the lower heating jig. The upper heating jig is vertically moved by a vertically actuating mechanism. The upper and lower heating jigs are heated under vacuum so as to diffuse Se to the thin-film solar cells, whereby a CuInSe2 alloy film is formed.Type: GrantFiled: January 20, 1998Date of Patent: March 27, 2001Assignee: Yazaki CorporationInventors: Takeshi Ikeya, Kenji Sato, Kazuhiro Toyoda, Takeshi Kamiya
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Patent number: 6036822Abstract: A base is provided with a gas outlet pipe and a gas inlet pipe. A bell jar is placed on top of the base with an O-ring interposed between them. Thin-film solar cells and a Se powder are placed in a recess formed in a lower heating jig, and the lower heating jig is positioned on the base. An upper heating jig is placed on top of the lower heating jig. The upper heating jig is vertically moved by a vertically actuating mechanism. The upper and lower heating jigs are heated with a heater so as to react Se with the thin-film solar cells, whereby a CuInSe.sub.2 alloy film is formed. In a method of manufacturing a thin-film solar cell, a molybdenum layer and a copper layer are formed on a substrate by sputtering. A selenium-dispersed indium layer is formed on the copper layer in a solution, which includes indium ions and dispersed selenium colloid, by electrodeposition. The thus formed selenium-dispersed indium layer and the selenium are heated in a sealed container.Type: GrantFiled: January 20, 1998Date of Patent: March 14, 2000Assignee: Yazaki CorporationInventors: Takeshi Ikeya, Kenji Sato, Kazuhiro Toyoda, Takeshi Kamiya
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Patent number: 5935324Abstract: An apparatus for forming I-III-VI.sub.2 thin-film layers has a reaction chamber made of a carbon material in which a precursor for forming a I-III-VI.sub.2 thin-film layer and a vapor source of an element of group VI of the periodic table are placed. The precursor and vapor source are heated under vacuum to form the I-III-VI.sub.2 thin-film layer. The reaction chamber is divided into a reaction compartment A having the precursor placed therein and a reaction compartment B having the vapor element of group IV placed therein. A communication channel C is provided between the reaction compartments A and B, and a heating unit controlled by a temperature control unit is provided exterior to each of the reaction compartments A and B.Type: GrantFiled: April 28, 1997Date of Patent: August 10, 1999Assignee: Yazaki CorporationInventors: Shinnichi Nakagawa, Kenji Sato, Masami Nakamura, Kazuhiro Toyoda, Takeshi Kamiya, Kazue Suzuki, Hiroki Ishihara, Takeshi Ikeya, Masaharu Ishida
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Patent number: 5772431Abstract: A base is provided with a gas outlet pipe and a gas inlet pipe. A bell jar is placed on top of the base with an O-ring interposed between them. Thin-film solar cells and a Se powder are placed in a recess formed in a lower heating jig, and the lower heating jig is positioned on the base. An upper heating jig is placed on top of the lower heating jig. The upper heating jig is vertically moved by a vertically actuating mechanism. The upper and lower heating jigs are heated with a heater so as to react Se with the thin-film solar cells, whereby a CuInSe.sub.2 alloy film is formed. In a method of manufacturing a thin-film solar cell, a molybuden layer and a copper layer are formed on a substrate by sputtering. A selenium-dispersed indium layer is formed on the copper layer in a solution, which includes indium ions and dispersed selenium colloid, by electrodeposition. The thus formed selenium-dispersed indium layer and the selenium are heated in a sealed container.Type: GrantFiled: May 22, 1996Date of Patent: June 30, 1998Assignee: Yazaki CorporationInventors: Takeshi Ikeya, Kenji Sato, Kazuhiro Toyoda, Takeshi Kamiya
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Patent number: 5684903Abstract: This receptacle comprises a case made of resin, holding a rigid sleeve by being in contact with the outer wall of the rigid sleeve, having a through hole communicating with the through hole of the rigid sleeve at one end thereof.Type: GrantFiled: June 29, 1995Date of Patent: November 4, 1997Assignees: Hamamatsu Photonics K.K., Kyocera CorporationInventors: Mikio Kyomasu, Takeshi Ikeya, Toshimichi Yasuda, Shin Ikegami, Takashi Yamagishi