Patents by Inventor CHIEH-WEN LIU

CHIEH-WEN LIU 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: 20180291519
    Abstract: A manufacturing method of a tool surface mark includes a first cleaning step, a first electroplating step, an ionized water cleaning step, a drying step, a printing step, a second cleaning step and a second electroplating step. In the first electroplating step, the surface of the tool is electroplated to form a first protective layer on the surface of the tool. In the ionized water cleaning step, ionized water is sprayed on the surface of the tool and the ions in the ionic water are adhered to the pores of the first protective layer to form an ion-protective coating. In the second electroplating step, the surface of the tool is electroplated with nickel so that a second protective layer is formed on the surface of the tool. The ion-protective coating can enhance the adhesion of the printing pattern and make it difficult for the printing pattern to fall off.
    Type: Application
    Filed: April 11, 2017
    Publication date: October 11, 2018
    Inventor: CHIEH-WEN LIU
  • Publication number: 20180291518
    Abstract: A manufacturing method of a tool surface mark includes a first cleaning step, a first electroplating step, a second cleaning step, a drying step, a printing step, a cation removal step, and a second electroplating step. In the first electroplating step, the surface of the tool is electroplated, and a first protective layer is formed on the surface of the tool. In the cation removal step, the tool is placed into an electrolyte and then electrically connected to an anode, the anode is electrically energized, and metal cations on the surface of the tool and on the printing pattern are dissolved. In the second electroplating step, the surface of the tool is electroplate at potions without the printing pattern to form a second protective layer. The yield of the printing pattern increases and the printing pattern does not easy peel off.
    Type: Application
    Filed: April 11, 2017
    Publication date: October 11, 2018
    Inventor: CHIEH-WEN LIU