Patents by Inventor Wei Ming Pan

Wei Ming Pan 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).

  • High speed printing material delivery system
    Patent number: 8414112
    Abstract: A printing material delivery system includes a printing material storage that includes a printing material. The printing material deliver system also includes a print head. A pressurizing device defines a housing that includes an inlet coupled to the printing material storage, an outlet coupled to the print head, and that houses a rotatable member that is operable to rotate and create a pressure differential in order to transfer the printing material from the printing material storage, through the pressurizing device, and out of the print head.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: April 9, 2013
    Assignee: Dell Products L.P.
    Inventors: Wei Ming Pan, Hin Loong Wong
  • Biometric Sensing Using Scan Function of an All-in-One Printer Device
    Publication number: 20110200233
    Abstract: A low-cost method of biometric reading by using an optical scan portion of an All-In-One (AIO) type device. When generating the biometric reading, the users place a finger stationary while a scan bar of the AIO device sweeps across the placed finger to perform the scanning.
    Type: Application
    Filed: February 16, 2010
    Publication date: August 18, 2011
    Inventors: Keng Aik Boo, Wei Ming Pan
  • HIGH SPEED PRINTING MATERIAL DELIVERY SYSTEM
    Publication number: 20110050813
    Abstract: A printing material delivery system includes a printing material storage that includes a printing material. The printing material deliver system also includes a print head. A pressurizing device defines a housing that includes an inlet coupled to the printing material storage, an outlet coupled to the print head, and that houses a rotatable member that is operable to rotate and create a pressure differential in order to transfer the printing material from the printing material storage, through the pressurizing device, and out of the print head.
    Type: Application
    Filed: September 3, 2009
    Publication date: March 3, 2011
    Applicant: DELL PRODUCTS L.P.
    Inventors: Wei Ming Pan, Hin Loong Wong
  • Print media ejection system
    Patent number: 6450713
    Abstract: An output roller for propelling a media sheet, for example in a printer, is disclosed. A plurality of protrusions is selectively positioned on the output roller. As the media sheet exists a media path, the rear edge of the media sheet is caught by the protrusions and the rear edge is further pushed forward into an output stack. Preferably, the protrusions are flexible.
    Type: Grant
    Filed: December 3, 1999
    Date of Patent: September 17, 2002
    Assignee: Hewlett-Packard Company
    Inventors: Baskar Parthasarathy, Sathiyamoorthy T. Sivanandam, Kong Hock Lim, Wei Ming Pan
  • Automatic top-of-form calibration of a printer
    Patent number: 6416153
    Abstract: For top-of-form calibration of a printer in which a printing medium is fed into a printing position, a predefined pattern is printed so that a print is generated on the print medium. After the print is detected, a feature of the print is determined. The feature is indicative of the printing position. By using a correction factor, which is determined from the feature, the calibration is performed.
    Type: Grant
    Filed: October 31, 2000
    Date of Patent: July 9, 2002
    Assignee: Hewlett-Packard Company
    Inventors: Wei Ming Pan, Ching Yong Chua, Kok Sam Yip
  • PRINT MEDIA EJECTION SYSTEM
    Publication number: 20010014244
    Abstract: An output roller for propelling a media sheet, for example in a printer, is disclosed. A plurality of protrusions is selectively positioned on the output roller. As the media sheet exists a media path, the rear edge of the media sheet is caught by the protrusions and the rear edge is further pushed forward into an output stack. Preferably, the protrusions are flexible.
    Type: Application
    Filed: December 3, 1999
    Publication date: August 16, 2001
    Applicant: HEWLETT-PACKARD COMPANY
    Inventors: BASKAR PARTHASARATHY, SATHIYAMOOTHY SIVANANDAM, KONG HOCK LIM, WEI MING PAN