Patents by Inventor Minoru Tokinaga

Minoru Tokinaga 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).

  • Sheet-fed printing press
    Patent number: 7107903
    Abstract: There is provided a sheet-fed printing press that is capable of rapidly performing printing preparatory work for more secured double sheet detection. A double-sheet-detector control part judges whether an ultrasonic double sheet detector outputs double sheet detected signal during test printing or during feeding a first printing sheet of successively fed printing sheets in large quantity or successive printing. Where double sheet detected signal was output, it is judged that the detection made by the ultrasonic double sheet detector is erroneous so that the double-sheet-detector control part switches to a photoelectric double sheet detector to be employed as a double sheet detector for use in large quantity or successive printing.
    Type: Grant
    Filed: April 22, 2005
    Date of Patent: September 19, 2006
    Assignee: Ryobi Ltd.
    Inventors: Minoru Tokinaga, Masamichi Sasaki, Kiyomi Utsumi
  • Sheet-fed printing press
    Publication number: 20050235847
    Abstract: There is provided a sheet-fed printing press that is capable of rapidly performing printing preparatory work for more secured double sheet detection. A double-sheet-detector control part judges whether an ultrasonic double sheet detector outputs double sheet detected signal during test printing or during feeding a first printing sheet of successively fed printing sheets in large quantity or successive printing. Where double sheet detected signal was output, it is judged that the detection made by the ultrasonic double sheet detector is erroneous so that the double-sheet-detector control part switches to a photoelectric double sheet detector to be employed as a double sheet detector for use in large quantity or successive printing.
    Type: Application
    Filed: April 22, 2005
    Publication date: October 27, 2005
    Applicant: Ryobi Ltd.
    Inventors: Minoru Tokinaga, Masamichi Sasaki, Kiyomi Utsumi