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).

  • Patent number: 9850334
    Abstract: A method for manufacturing a polymer of which structure is exactly controlled is disclosed.
    Type: Grant
    Filed: April 13, 2015
    Date of Patent: December 26, 2017
    Assignee: TOYO GOSEI CO., LTD.
    Inventors: Yuki Kawakami, Michiya Naito, Takeshi Ikeya
  • Publication number: 20170037169
    Abstract: A method for manufacturing a polymer of which structure is exactly controlled is disclosed.
    Type: Application
    Filed: April 13, 2015
    Publication date: February 9, 2017
    Applicant: TOYO GOSEI CO., LTD.
    Inventors: Yuki KAWAKAMI, Michiya NAITO, Takeshi IKEYA
  • Publication number: 20100216245
    Abstract: 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: Application
    Filed: September 11, 2008
    Publication date: August 26, 2010
    Applicants: NATIONAL CENTER FOR CHILD HEALTH AND DEVELOPMENT, TOYO GOSEI CO., LTD.
    Inventors: Shin Enosawa, Yoshitaka Miyamoto, Takeshi Ikeya
  • Patent number: 7605191
    Abstract: 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: Grant
    Filed: March 31, 2006
    Date of Patent: October 20, 2009
    Assignee: Toyo Gosei Co., Ltd.
    Inventors: Takeshi Ikeya, Toru Shibuya, Kana Miyazaki
  • Publication number: 20090181158
    Abstract: 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: Application
    Filed: April 24, 2007
    Publication date: July 16, 2009
    Applicant: Toyo Gosei Co., Ltd.
    Inventors: Takeshi Ikeya, Masaharu Watanabe, Kana Miyazaki, Toru Shibuya
  • Patent number: 7252912
    Abstract: 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: Grant
    Filed: March 29, 2005
    Date of Patent: August 7, 2007
    Assignees: Toyo Gosei Co., Ltd.
    Inventors: Kazunori Kataoka, Akihiro Hirano, Takeshi Ikeya, Toru Shibuya
  • Publication number: 20060235103
    Abstract: 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: Application
    Filed: March 31, 2006
    Publication date: October 19, 2006
    Inventors: Takeshi Ikeya, Toru Shibuya, Kana Miyazaki
  • Publication number: 20060222876
    Abstract: 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: Application
    Filed: March 29, 2005
    Publication date: October 5, 2006
    Inventors: Kazunori Kataoka, Akihiro Hirano, Takeshi Ikeya, Toru Shibuya
  • Patent number: 6207219
    Abstract: 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: Grant
    Filed: January 20, 1998
    Date of Patent: March 27, 2001
    Assignee: Yazaki Corporation
    Inventors: Takeshi Ikeya, Kenji Sato, Kazuhiro Toyoda, Takeshi Kamiya
  • Patent number: 6036822
    Abstract: 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: Grant
    Filed: January 20, 1998
    Date of Patent: March 14, 2000
    Assignee: Yazaki Corporation
    Inventors: Takeshi Ikeya, Kenji Sato, Kazuhiro Toyoda, Takeshi Kamiya
  • Patent number: 5935324
    Abstract: 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: Grant
    Filed: April 28, 1997
    Date of Patent: August 10, 1999
    Assignee: Yazaki Corporation
    Inventors: Shinnichi Nakagawa, Kenji Sato, Masami Nakamura, Kazuhiro Toyoda, Takeshi Kamiya, Kazue Suzuki, Hiroki Ishihara, Takeshi Ikeya, Masaharu Ishida
  • Patent number: 5772431
    Abstract: 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: Grant
    Filed: May 22, 1996
    Date of Patent: June 30, 1998
    Assignee: Yazaki Corporation
    Inventors: Takeshi Ikeya, Kenji Sato, Kazuhiro Toyoda, Takeshi Kamiya
  • Patent number: 5684903
    Abstract: 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: Grant
    Filed: June 29, 1995
    Date of Patent: November 4, 1997
    Assignees: Hamamatsu Photonics K.K., Kyocera Corporation
    Inventors: Mikio Kyomasu, Takeshi Ikeya, Toshimichi Yasuda, Shin Ikegami, Takashi Yamagishi