Patents by Inventor Toshiko Tojo, legal representative

Toshiko Tojo, legal representative 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).

  • Printing device, and control of printing device
    Patent number: 7314271
    Abstract: A printing device that facilitates processes requested in relation to a print recording medium reservoir. When a contact detecting switch 25 is turned on by a proximate ink cartridge CA, a personal computer PC identifies the proximate ink cartridge CA. The personal computer PC, in the event that the duration of sustained proximity of the proximate ink cartridge CA is longer than a predetermined time interval Tref, reads out the remaining quantity of ink from the memory device module M of the proximate ink cartridge CA and displays this on an external display device 40. In the event that the duration of sustained proximity is shorter than predetermined time interval Tref, the personal computer PC drives the carriage 101 so as to move an ink cartridge CA installed on carriage 101 corresponding to the proximate ink cartridge CA to a replacement opening 14.
    Type: Grant
    Filed: April 11, 2003
    Date of Patent: January 1, 2008
    Assignee: Seiko Epson Corporation
    Inventors: Takakazu Fukano, Toshiko Tojo, legal representative, Hiroaki Tojo, deceased