Patents by Inventor Koichiro Tsuji

Koichiro Tsuji 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: 11931979
    Abstract: A tire vulcanization mold in which a surface roughness in the groove molding portion of the tread molding surface is made smaller than a surface roughness in the land portion molding portion, in which a surface roughness in the groove molding portion is minimized to 0.12 ?m or less in a range including at least a main groove molding portion, and in which a surface roughness in the land portion molding portion is made to be 3.2 ?m or more, is used to manufacture a tire, and when cleaning the tread molding surface, the tread molding surface is irradiated with a laser beam to remove contaminant adhered to the tread molding surface.
    Type: Grant
    Filed: July 1, 2020
    Date of Patent: March 19, 2024
    Assignee: The Yokohama Rubber Co., LTD.
    Inventors: Tsubasa Kitahara, Yoshiaki Matsumoto, Mika Nagashima, Mitsuo Tsuji, Yoshinori Izumi, Rinko Kushida, Koichiro Miyoshi
  • Publication number: 20230302055
    Abstract: It is an object to provide a therapeutic composition for treatment of a central nervous disease, a method for producing a therapeutic composition for treatment of a central nervous disease, and a method for producing and preserving a therapeutic formulation for treatment of a central nervous disease. The object is attained by a therapeutic composition for treatment of a central nervous disease, containing synovial membrane-derived mesenchymal stem cells cultured in a serum-free medium.
    Type: Application
    Filed: August 4, 2021
    Publication date: September 28, 2023
    Inventors: Hiromu KONISHI, Masaya MATSUMOTO, Kaori IWAMOTO, Megumi MIYAKE, Koichiro TSUJI
  • Publication number: 20220331366
    Abstract: The present invention provides a novel repair agent for damaged tissue that brings about a notably high effect of repairing damaged tissue, as compared with conventional repair agents for damaged tissue, and a method for producing such a repair agent. A method for producing a repair agent for damaged tissue of the present invention includes the step of culturing mesenchymal stem cells in a serum-free medium at an oxygen concentration of less than 5%.
    Type: Application
    Filed: September 25, 2020
    Publication date: October 20, 2022
    Inventors: Yukio KATO, Satoshi MAEDA, Koichiro TSUJI, Jin Chang SHAO, Ayumu NAKASHIMA, Takao MASAKI, Shigehiro DOI, Naoki ISHIUCHI
  • Publication number: 20220031757
    Abstract: In order to provide (i) a repair agent for damaged tissue and (ii) a method for producing the repair agent, the present invention uses mesenchymal stem cells cultured in a serum-free medium.
    Type: Application
    Filed: October 18, 2021
    Publication date: February 3, 2022
    Inventors: Yukio Kato, Koichiro Tsuji, Ayumu Nakashima, Takao Masaki, Shigehiro Doi, Ken Yoshida
  • Publication number: 20210128629
    Abstract: In order to provide (i) a repair agent for damaged tissue and (ii) a method for producing the repair agent, the present invention uses mesenchymal stem cells cultured in a serum-free medium.
    Type: Application
    Filed: December 25, 2017
    Publication date: May 6, 2021
    Inventors: Yukio KATO, Koichiro TSUJI, Ayumu NAKASHIMA, Takao MASAKI, Shigehiro DOI, Ken YOSHIDA
  • Publication number: 20200205399
    Abstract: An object is to achieve cryopreservation that yields no or few dead cells and that ensures good quality. A composition for cryopreservation in accordance with an aspect of the present invention is a composition for cryopreservation of cells, and contains a fatty acid.
    Type: Application
    Filed: July 31, 2018
    Publication date: July 2, 2020
    Inventors: Jin Chang SHAO, Shunsuke TANIGAWA, Masanori NAKASA, Yukio KATO, Koichiro TSUJI, Akihiro OHISO
  • Patent number: 10507266
    Abstract: A method according to the present invention for producing a cartilage-damage treatment agent, includes the steps of: (i) proliferating mesenchymal stem cells in a serum-free medium A containing an FGF, a PDGF, a TGF-?, an HGF, an EGF, at least one phospholipid and at least one fatty acid; and (ii) mixing the mesenchymal stem cells thus proliferated in the step (i), an isotonic preserving agent, and a cytoprotective agent. This method provides a cartilage-damage treatment agent which favorably regenerates a cartilage tissue.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: December 17, 2019
    Assignee: TWO CELLS Co., Ltd.
    Inventors: Koichiro Tsuji, Minoru Morikawa, Satoshi Maeda, Yui Kitayama, Aki Ohmori, Jin Chang Shao, Shinichi Hasegawa, Yukio Kato, Takashi Matsushita, Masato Takao, Shinya Miki, Ken Innami, Yasufumi Takahashi
  • Patent number: 10184112
    Abstract: Disclosed are: a culture medium containing a specific growth factor and at least one phospholipid; a composition for preparation of the culture medium; a kit; and a method. A technique can be provided which uses a serum-free or low-serum culture medium and has a promoting effect on the proliferation of an animal cell comparable to the promoting effect obtained by the culture in a serum-containing culture medium.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: January 22, 2019
    Assignee: Two Cells Co., Ltd.
    Inventors: Yukio Kato, Jin Chang Shao, Yuki Katsura, Koichiro Tsuji
  • Patent number: 10131877
    Abstract: Provided is a differentiation-inducing culture medium additive for inducing bone differentiation of at least one type of cell selected from the group consisting of a stem cell, a dental pulp cell, a periodontal ligament cell, a placenta, an amnion, and a fibroblast under a serum-free condition, and a use of the differentiation-inducing culture medium additive. The differentiation-inducing culture medium additive of the present invention for inducing differentiation of a stem cell under a serum-free condition at least contains at least one growth factor selected from the group consisting of EGF, FGF, and PDGF; dexamethasone; and ?-glycerophosphate. The differentiation-inducing culture medium additive of the present invention does not require ascorbic acid 2-phosphate and ITS, which are normally essential for bone differentiation. Further, bone differentiation can be promoted by adding phospholipid.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: November 20, 2018
    Assignee: TWO CELLS Co., Ltd.
    Inventors: Yukio Kato, Jin Chang Shao, Koichiro Tsuji
  • Patent number: 9394521
    Abstract: A cell preparation containing mesenchymal stem cells whose immunosuppression ability is maintained is produced by means of a serum-free or low-serum culture. A method for producing a cell preparation containing mesenchymal stem cells, comprising the steps of: (A) proliferating mesenchymal stem cells in a serum-free medium “A” containing an FGF, a PDGF, a TGF-?, an HGF, an EGF, at least one phospholipid, and at least one fatty acid; and (B) screening mesenchymal stem cells whose immunosuppression ability is maintained or improved, from the mesenchymal stem cells thus proliferated in the step (A).
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: July 19, 2016
    Assignee: TWO CELLS Co., Ltd.
    Inventors: Toshie Tsuchiya, Koichiro Tsuji, Yukio Kato, Jin Chang Shao, Maiko Hara
  • Publication number: 20160166734
    Abstract: A method according to the present invention for producing a cartilage-damage treatment agent, includes the steps of: (i) proliferating mesenchymal stem cells in a serum-free medium A containing an FGF, a PDGF, a TGF-?, an HGF, an EGF, at least one phospholipid and at least one fatty acid; and (ii) mixing the mesenchymal stem cells thus proliferated in the step (i), an isotonic preserving agent, and a cytoprotective agent. This method provides a cartilage-damage treatment agent which favorably regenerates a cartilage tissue.
    Type: Application
    Filed: August 1, 2014
    Publication date: June 16, 2016
    Inventors: Koichiro TSUJI, Minoru MORIKAWA, Satoshi MAEDA, Yui KITAYAMA, Aki OHMORI, Jin Chang SHAO, Shinichi HASEGAWA, Yukio KATO, Takashi MATSUSHITA, Masato TAKAO, Shinya MIKI, Ken INNAMI, Yasufumi TAKAHASHI
  • Publication number: 20160032247
    Abstract: Provided is a differentiation-inducing culture medium additive for inducing bone differentiation of at least one type of cell selected from the group consisting of a stem cell, a dental pulp cell, a periodontal ligament cell, a placenta, an amnion, and a fibroblast under a serum-free condition, and a use of the differentiation-inducing culture medium additive. The differentiation-inducing culture medium additive of the present invention for inducing differentiation of a stem cell under a serum-free condition at least contains at least one growth factor selected from the group consisting of EGF, FGF, and PDGF; dexamethasone; and ?-glycerophosphate. The differentiation-inducing culture medium additive of the present invention does not require ascorbic acid 2-phosphate and ITS, which are normally essential for bone differentiation. Further, bone differentiation can be promoted by adding phospholipid.
    Type: Application
    Filed: October 16, 2015
    Publication date: February 4, 2016
    Inventors: Yukio KATO, Jin Chang SHAO, Koichiro Tsuji
  • Patent number: 9234897
    Abstract: Disclosed is a method for distinguishing a mesenchymal stem cell comprising, using at least one gene selected from the genes having the nucleotide sequences indicated by the accession numbers shown in Table 1 as a distinguish marker, detecting the difference in expression of the distinguish marker between a mesenchymal stem cell and a connective tissue cell to distinguish the mesenchymal stem cell from the connective tissue cell. This method enables to distinguish an undifferentiated mesenchymal stem cell from other connective tissue cell such as fibroblasts, osteoblasts, chondrocytes and adipose cells with good accuracy. A mesenchymal stem cell given by this method or a composition comprising the mesenchymal stem sell can be used as a therapeutic for use in the regenerative medicine.
    Type: Grant
    Filed: March 30, 2006
    Date of Patent: January 12, 2016
    Assignee: TWO CELLS CO., LTD
    Inventors: Yukio Kato, Takeshi Kawamoto, Koichiro Tsuji, Akira Igarashi, Masakazu Shimizu
  • Publication number: 20150267172
    Abstract: Disclosed are: a culture medium containing a specific growth factor and at least one phospholipid; a composition for preparation of the culture medium; a kit; and a method. A technique can be provided which uses a serum-free or low-serum culture medium and has a promoting effect on the proliferation of an animal cell comparable to the promoting effect obtained by the culture in a serum-containing culture medium.
    Type: Application
    Filed: May 29, 2015
    Publication date: September 24, 2015
    Inventors: Yukio KATO, Jin Chang SHAO, Yuki KATSURA, Koichiro TSUJI
  • Patent number: 9074176
    Abstract: Disclosed are: a culture medium containing a specific growth factor and at least one phospholipid; a composition for preparation of the culture medium; a kit; and a method. A technique can be provided which uses a serum-free or low-serum culture medium and has a promoting effect on the proliferation of an animal cell comparable to the promoting effect obtained by the culture in a serum-containing culture medium.
    Type: Grant
    Filed: January 11, 2007
    Date of Patent: July 7, 2015
    Assignee: Two Cells Co., Ltd.
    Inventors: Yukio Kato, Jin Chang Shao, Yuki Katsura, Koichiro Tsuji
  • Publication number: 20140178408
    Abstract: The present invention provides an immunodeficient mouse (NOG mouse) suitable for engraftment, differentiation and proliferation of heterologous cells, and a method of producing such a mouse. This mouse is obtained by backcrossing a C.B-17-scid mouse with an NOD/Shi mouse, and further backcrossing an interleukin 2-receptor ?-chain gene-knockout mouse with the thus backcrossed mouse. It is usable for producing a human antibody and establishing a stem cell assay system, a tumor model and a virus-infection model.
    Type: Application
    Filed: September 20, 2013
    Publication date: June 26, 2014
    Applicant: Central Institute for Experimental Animals
    Inventors: Mamoru Ito, Kimio Kobayashi, Tatsutoshi Nakahata, Koichiro Tsuji, Sonoko Habu, Yoshio Koyanagi, Naoki Yamamoto, Kazuo Sugamura, Kiyoshi Ando, Tatsuji Nomura
  • Patent number: 8722404
    Abstract: Method for regeneration of mesenchymal tissue from mesenchymal cells on a porous sheet composed of bioabsorbable polymer material.
    Type: Grant
    Filed: February 22, 2010
    Date of Patent: May 13, 2014
    Assignees: GC Corporation, Two Cells Co. Ltd.
    Inventors: Toshitsugu Kawata, Kaoru Tenjo, Koichiro Tsuji, Katsuyuki Yamanaka
  • Patent number: 8541033
    Abstract: The present invention provides an immunodeficient mouse (NOG mouse) suitable for engraftment, differentiation and proliferation of heterologous cells, and a method of producing such a mouse. This mouse is obtained by backcrossing a C.B-17-scid mouse with an NOD/Shi mouse, and further backcrossing an interleukin 2-receptor ?-chain gene-knockout mouse with the thus backcrossed mouse. It is usable for producing a human antibody and establishing a stem cell assay system, a tumor model and a virus-infection model.
    Type: Grant
    Filed: November 17, 2009
    Date of Patent: September 24, 2013
    Assignee: Central Institute for Experimental Animals
    Inventors: Mamoru Ito, Kimio Kobayashi, Tatsutoshi Nakahata, Koichiro Tsuji, Sonoko Habu, Yoshio Koyanagi, Naoki Yamamoto, Kazuo Sugamura, Kiyoshi Ando, Tatsuji Nomura
  • Publication number: 20120329087
    Abstract: A cell preparation containing mesenchymal stem cells whose immunosuppression ability is maintained is produced by means of a serum-free or low-serum culture. A method for producing a cell preparation containing mesenchymal stem cells, comprising the steps of: (A) proliferating mesenchymal stem cells in a serum-free medium “A” containing an FGF, a PDGF, a TGF-?, an HGF, an EGF, at least one phospholipid, and at least one fatty acid; and (B) screening mesenchymal stem cells whose immunosuppression ability is maintained or improved, from the mesenchymal stem cells thus proliferated in the step (A).
    Type: Application
    Filed: March 10, 2011
    Publication date: December 27, 2012
    Applicant: TWO CELLS CO., LTD.
    Inventors: Toshie Tsuchiya, Koichiro Tsuji, Yukio Kato, Jin Chang Shao, Maiko Hara
  • Patent number: 8212707
    Abstract: A remote control system is provided. The remote control system includes at least one first remote control apparatus and at least one second remote control apparatus. The at least one first remote control apparatus includes a command input unit, a first control unit, and a first output unit. The at least one second remote control apparatus includes a first user interface unit, a first input unit, a second control unit, and a second output unit.
    Type: Grant
    Filed: March 10, 2009
    Date of Patent: July 3, 2012
    Assignee: Sony Corporation
    Inventors: Tsugihiko Haga, Hiroto Kimura, Masanori Machimura, Koichiro Tsuji, Toshiyuki Hino, Tetsujiro Kondo