Patents by Inventor Tatsumichi Takeda

Tatsumichi Takeda 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).

  • Metallic silver-plated silicon ring element for exit site disinfection and a method for preventing contamination at an exit site
    Patent number: 5630804
    Abstract: A ring element (10) attaches to a length of tubing (12) to prevent contamination at a site (24) through which a portion of the length of tubing (12) extends. A resilient material having a first end (14) and a second end (16) is provided capable of mating to form a hollow, cylindrical shell (10). An electrically conductive material is provided on a surface of the resilient material. In a preferred embodiment, the conductive material includes silver. The ring element (10) may be placed on a tube (12) to prevent contamination at a site (24) through which a tube (12) is secured. The ring element (10) is connected to the tube (12) at the site (24) of injection of the tube (12) wherein the ring element (10) is capable of removal without removal of the tube (12) from the site (24). The ring element (10) is particularly adaptable for a transfer set connectable to a peritoneal cavity and insertable at a site (24) for, for example, peritoneal dialysis.
    Type: Grant
    Filed: February 24, 1995
    Date of Patent: May 20, 1997
    Assignee: Baxter International Inc.
    Inventors: Akio Imada, Tatsumichi Takeda
  • Support for biomedical implant device
    Patent number: 4798585
    Abstract: A support for a biomedical implant device in which the support has a surface layer composed of a biocompatible calcium phosphate material such as sintered hydroxyapatite with a porosity of 50-60% and pore size of 0.5-500 micrometers. Preferably, the surface layer is formed with projections or recesses of a few hundred micrometers size.
    Type: Grant
    Filed: June 8, 1987
    Date of Patent: January 17, 1989
    Assignee: Asahi Kogaku Kogyo Kabushiki Kaisha
    Inventors: Masahide Inoue, Takeshi Ichitsuka, Yasuhiko Hirayama, Shozo Koshikawa, Tateki Kitaoka, Nobuo Nakabayashi, Tatsumichi Takeda, Osamu Minoo
  • Support for biomedical implant device
    Patent number: RE34037
    Abstract: A support for a biomedical implant device in which the support has a surface layer composed of a biocompatible calcium phosphate material such as sintered hydroxyapatite with a porosity of 50-60% and pore size of 0.5-500 micrometers. Preferably, the surface layer is formed with projections or recesses of a few hundred micrometers size.
    Type: Grant
    Filed: January 17, 1991
    Date of Patent: August 18, 1992
    Assignee: Asahi Kogaku Kogyo K.K.
    Inventors: Masahide Inoue, Takeshi Ichitsuka, Yasuhiko Hirayama, Shozo Koshikawa, Tateki Kitaoka, Nobuo Nakabayashi, Tatsumichi Takeda, Osamu Minoo