Patents by Inventor Uchikata Yoshio

Uchikata Yoshio 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).

  • Ink-jet head, ink-jet image forming apparatus including the ink-jet head, and method for compensating for defective nozzle
    Patent number: 7484830
    Abstract: An ink-jet image forming apparatus includes an ink-jet head having a nozzle unit including a first nozzle array having a plurality of nozzles of different sizes and at least one second nozzle array disposed parallel to the first nozzle array and having a plurality of nozzles of different sizes. A method of compensating for the defective nozzle includes: detecting a defective nozzle of the first nozzle array; and compensating for missing dots of the defective nozzle using the second nozzle array.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: February 3, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tae-kyun Kim, Uchikata Yoshio
  • Ink-jet head, ink-jet image forming apparatus including the ink-jet head, and method for compensating for defective nozzle
    Publication number: 20060256157
    Abstract: An ink-jet image forming apparatus includes an ink-jet head having a nozzle unit including a first nozzle array having a plurality of nozzles of different sizes and at least one second nozzle array disposed parallel to the first nozzle array and having a plurality of nozzles of different sizes. A method of compensating for the defective nozzle includes: detecting a defective nozzle of the first nozzle array; and compensating for missing dots of the defective nozzle using the second nozzle array.
    Type: Application
    Filed: December 2, 2005
    Publication date: November 16, 2006
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Tae-kyun Kim, Uchikata Yoshio