Patents Assigned to PG Research Co., Ltd.
  • Patent number: 7923244
    Abstract: To obtain an artificial cartilage tissue having high strength and biocompatibility. There is provided an artificial cartilage tissue which is substantially free of heterologous protein and is substantially free of scaffold derived from non-cartilage-derived cells, but contains mammalian cartilage-derived cells and an extracellular matrix formed by the cartilage-derived cells, where: (1) the water retention per mg of tissue dry weight is 17.8 mg or less; (2) collagen of 5.57 ?g or more per mg of tissue wet weight is contained; (3) proteoglycan of 9.22 ?g or more per mg of tissue wet weight is contained.
    Type: Grant
    Filed: January 30, 2007
    Date of Patent: April 12, 2011
    Assignee: PG Research Co., Ltd.
    Inventors: Satoshi Miyauchi, Tatsuya Miyazaki, Satoshi Matsuzaka