Patents Assigned to Transparent Inc.
  • Patent number: 8445279
    Abstract: Facing no ethical obstacle and easily to be isolated, multipotent concretely mesenchymal stem cells (MSCs) are one of the most powerful tools in reconstructive medicine. Here the inventors introduced 3D multicelluar spheroids culture construction based on photolithography and micropatterning techniques to improve multipotent differentiation efficiency of MSCs to adult cells. This invention, the 3D spheroid cultured construction for MSCs, leads to great improve of the differentiation efficiency. This invention relates to a cultured cell construct comprising a support; at least one island on the support; a hydrophilic and cytophobic substance applied on the surface of said support so as to encircle the island; and a spheroid which is derived from MSCs, said spheroid being in contact with the island.
    Type: Grant
    Filed: October 21, 2008
    Date of Patent: May 21, 2013
    Assignee: Transparent Inc.
    Inventors: Wenjie Wang, Keiji Itaka, Shinsuke Ohba, Nobuhiro Nishiyama, Ung-il Chung, Yuichi Yamasaki, Kazunori Kataoka
  • Publication number: 20100099190
    Abstract: Facing no ethical obstacle and easily to be isolated, multipotent concretely mesenchymal stem cells (MSCs) are one of the most powerful tools in reconstructive medicine. Here the inventors introduced 3D multicelluar spheroids culture construction based on photolithography and micropatterning techniques to improve multipotent differentiation efficiency of MSCs to adult cells. This invention, the 3D spheroid cultured construction for MSCs, leads to great improve of the differentiation efficiency. This invention relates to a cultured cell construct comprising a support; at least one island on the support; a hydrophilic and cytophobic substance applied on the surface of said support so as to encircle the island; and a spheroid which is derived from MSCs, said spheroid being in contact with the island.
    Type: Application
    Filed: October 21, 2008
    Publication date: April 22, 2010
    Applicant: Transparent Inc.
    Inventors: Wenjie WANG, Keiji Itaka, Shinsuke Ohba, Nobuhiro Nishiyama, Ung-il Chung, Yuichi Yamasaki, Kazunori Kataoka
  • Patent number: 7691369
    Abstract: Parenchymal cells are cultivated on cultivated endothelial cells or cultivated fibroblasts which have been separated by a surface of a specific hydrophilic polymer, and which have been patterned. A culture which contains thus formed patterned spheroids of cultivated parenchymal cells is thereby provided by this invention. This culture maintains a function which is specific to the parenchymal cells over a long period of time.
    Type: Grant
    Filed: September 8, 2008
    Date of Patent: April 6, 2010
    Assignee: Transparent Inc.
    Inventors: Kazunori Kataoka, Hidenori Otsuka, Teruo Okano, Yukio Nagasaki, Yasuhiro Horiike
  • Patent number: 7470424
    Abstract: Parenchymal cells are cultivated on cultivated endothelial cells or cultivated fibroblasts which have been separated by a surface of a specific hydrophilic polymer, and which have been patterned. A culture which contains thus formed patterned spheroids of cultivated parenchymal cells is thereby provided by this invention. This culture maintains a function which is specific to the parenchymal cells over a long period of time.
    Type: Grant
    Filed: July 25, 2002
    Date of Patent: December 30, 2008
    Assignee: Transparent Inc.
    Inventors: Kazunori Kataoka, Hidenori Otsuka, Teruo Okano, Yukio Nagasaki, Yasuhiro Horiike