Patents by Inventor Alex Kuo-Shen Wang

Alex Kuo-Shen Wang 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).

  • Publication number: 20090058958
    Abstract: The present invention provides an environmental protection ink cartridge/toner cartridge auto repeated usage chip, wherein the control chip is structured to embody a CPU control circuit, a data bus and a plurality of memory chips. The control chip is installed on an ink cartridge, and transmits signals to a printer by means of the data bus. The memory chips include an ink cartridge model number data memory, an ink cartridge monitoring ink refill point data memory, and an ink cartridge automatic refill to full amount memory, which enable a restore amount starting point to be set for usage amount of the ink cartridge to serve as a monitoring point, and if the amount of ink becomes lower than the monitoring point, then an ink refill mechanism is activated, which fully refills the ink cartridge with ink again, thereby achieving effectiveness of environmental protection.
    Type: Application
    Filed: August 27, 2007
    Publication date: March 5, 2009
    Inventor: Alex Kuo-Shen Wang
  • Patent number: 7328974
    Abstract: The present invention relates to an inkjet printer ink cartridge, which configures a sponge-free ink-filling device into a combined structure of a case and an ink outlet base body, which is then attached onto a printed circuit by PECVD. A stand having a recess on the ink outlet base body thereon can be used to dispose a socket. A nozzle plate connected to a heater chip can be inserted to the socket therein. The heater chip is electrically connected to a heating element in airflow guides formed on a surface of the socket thereto. A vertical wire attached to the socket is electrically connected to the vertical wire bent on the printed circuit at an edge of the stand. Therefore, when the heater chip has been used for some time and is required to be replaced, only the nozzle plate and the heater chip are independently replaced, whereas the case and the ink outlet base body can both be repeatedly used.
    Type: Grant
    Filed: September 29, 2005
    Date of Patent: February 12, 2008
    Inventor: Alex Kuo-Shen Wang
  • Patent number: 7328986
    Abstract: An inkjet printer ink cartridge, which improves upon the ink cartridge of a conventional inkjet ink cartridge, whereby need for sponge within the ink cartridge is eliminated, and a siphon device is configured within the ink cartridge. The ink cartridge utilizes a siphoning phenomenon to prevent leakage of ink from contact area of a nozzle of the inkjet printer and from an area of the siphon. Reusability of the ink cartridge is realized without affecting quality of printing of the ink cartridge, and without causing problems in environmental protection recovery.
    Type: Grant
    Filed: January 28, 2004
    Date of Patent: February 12, 2008
    Inventor: Alex Kuo-Shen Wang
  • Patent number: 7192109
    Abstract: The present invention provides an environmental protection ink cartridge control chip, wherein the control chip is structured to embody a CPU control circuit, a data bus and a plurality of memory chips. The control chip is installed on an ink cartridge, and transmits signals to a printer by means of the data bus. The memory chips separately provide functionality to monitor ink amount within the original ink cartridge, set ink amount return point of the ink cartridge and restore ink amount value after the ink cartridge has reached the return point. Hence, the control chip can provide for repeated usage of the ink cartridge until the control chip malfunctions, thereby achieving effectiveness of environmental protection.
    Type: Grant
    Filed: July 14, 2004
    Date of Patent: March 20, 2007
    Inventor: Alex Kuo-Shen Wang