Patents by Inventor Hisamitsu Iizuka

Hisamitsu Iizuka 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).

  • Printer and method for controlling printer
    Patent number: 9283780
    Abstract: A printer includes a platen roller, a print head for performing printing on a recording paper, a first detection switch and a second detection switch for detecting a position of the platen roller, and a potential detector that detects electrical potential. Both of the first and second detection switch are switched off when the platen roller is mounted, and switched on when the platen roller is not mounted. One terminal of the first detection switch and one terminal of the second detection switch are connected to each other in parallel and grounded via a ground side resistor. A power supply is to be connected to another terminal of the first detection switch and another terminal of the second detection switch. The potential detector detects a potential between the one terminals of the first and second detection switches and the ground side resistor.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: March 15, 2016
    Assignee: FUJITSU COMPONENT LIMITED
    Inventors: Hisamitsu Iizuka, Sumio Watanabe
  • PRINTER AND METHOD FOR CONTROLLING PRINTER
    Publication number: 20150183241
    Abstract: A printer includes a platen roller, a print head for performing printing on a recording paper, a first detection switch and a second detection switch for detecting a position of the platen roller, and a potential detector that detects electrical potential. Both of the first and second detection switch are switched off when the platen roller is mounted, and switched on when the platen roller is not mounted. One terminal of the first detection switch and one terminal of the second detection switch are connected to each other in parallel and grounded via a ground side resistor. A power supply is to be connected to another terminal of the first detection switch and another terminal of the second detection switch. The potential detector detects a potential between the one terminals of the first and second detection switches and the ground side resistor.
    Type: Application
    Filed: December 17, 2014
    Publication date: July 2, 2015
    Inventors: Hisamitsu Iizuka, Sumio Watanabe