Patents by Inventor Tomio Tsukazaki

Tomio Tsukazaki 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).

  • Removable core for pre-stretched tube
    Patent number: 5589667
    Abstract: A removable core for a pre-stretched elastomeric tube includes a serpentine rather than helical arrangement for break lines around the core which permits the core to be withdrawn in one continuous pulling operation rather than the intermittent, rotating operation required in the past.
    Type: Grant
    Filed: September 14, 1994
    Date of Patent: December 31, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Tomio Tsukazaki, Tsunehisa Nakamura
  • Connector apparatus, housing, and connecting element
    Patent number: 5520549
    Abstract: The invention provides a connector for connecting a branch conductor to an insulated double core cable without cutting the cable or stripping the insulation from the cable. The connector includes a connecting element adapted to pierce the cable insulation to contact the conducting core and a insulative wedge adjacent the connecting element which pierces the cable insulation to maintain the conductive cores of the cable apart from one another.
    Type: Grant
    Filed: October 19, 1994
    Date of Patent: May 28, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Kiyotaka Tanaka, Tomio Tsukazaki