Patents by Inventor Tomokazu Izumisawa

Tomokazu Izumisawa 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).

  • Pneumatic ratchet drive tool
    Publication number: 20070068346
    Abstract: A pneumatic ratchet drive tool includes an elongate housing having opposite first and second ends and a longitudinal axis. An air inlet is disposed at the first end, and a head extends generally axially from the second end. The tool includes a ratchet mechanism, and a bit receiver extending from the head and being operatively connected to ratchet mechanism. The bit receiver defines a bit socket for receiving and temporarily retaining a bit. The socket has a longitudinal axis generally orthogonal to the axes of the housing and the head.
    Type: Application
    Filed: September 23, 2005
    Publication date: March 29, 2007
    Applicant: SP Air Kabushiki Kaisha
    Inventor: Tomokazu Izumisawa
  • Butterfly impact wrench
    Patent number: D557097
    Type: Grant
    Filed: August 8, 2005
    Date of Patent: December 11, 2007
    Assignee: SP Air Kabushiki Kaisha
    Inventor: Tomokazu Izumisawa