Patents Assigned to Kabushiki-Kaisha Dentronics
  • Dental hand engine
    Patent number: 4243388
    Abstract: A dental hand engine for driving a reamer for widening root canals, which is characterized in the provision of a control device which electrically senses the time when a forward end of the reamer reaches a radical apex for automatically stopping the engine and consequently the reamer.
    Type: Grant
    Filed: April 20, 1979
    Date of Patent: January 6, 1981
    Assignee: Kabushiki-Kaisha Dentronics
    Inventor: Toshio Arai