Patents by Inventor Kun-Chen Tsai

Kun-Chen Tsai 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: 20050037601
    Abstract: A semiconductor package substrate and a method for fabricating the same are proposed. An insulating layer has a plurality of blind vias to expose inner traces underneath the insulating layer. A conductive film is formed on the insulating layer and over the bind vias. A first resist is formed on the conductive film, having openings to expose parts of the conductive film. A patterned trace layer including a plurality of contact pads is formed in the openings and the blind vias to form conductive vias, with at least one contact pad electrically connected to one conductive via. A second resist is formed on the patterned trace layer without covering the contact pads. A metal barrier layer is formed on the contact pads. Finally, the first and second resists and parts of the conductive film covered the first resist are removed.
    Type: Application
    Filed: October 27, 2003
    Publication date: February 17, 2005
    Inventors: Shih-Ping Hsu, Kun-Chen Tsai
  • Patent number: 6615630
    Abstract: A door lock includes an outside spindle tube, an insert tube which is disposed inside the outside spindle tube and which has a latch operating tab, and a clutch member disposed inside the insert tube and having first and second axial grooves. The clutch member is movable axially between a first position, in which the first axial groove engages a first engaging member projecting inwardly from the outside spindle tube, and a second position, in which the first axial groove disengages from the first engaging member. The insert tube does not engage the first engaging member of the outside spindle tube, but has a second engaging member in engagement with the second axial groove of the clutch member. When the door lock is placed in a locking position by pressing an inside press button of the door lock, the spindle shaft connected with the press button moves the clutch member to the second position, thereby permitting the outside spindle tube to turn independently of the insert tube.
    Type: Grant
    Filed: December 5, 2000
    Date of Patent: September 9, 2003
    Assignee: Tong-Lung Metal Industry Co., Ltd.
    Inventors: Rong-Faa Wu, Kun-Chen Tsai, Po-Yang Chen
  • Publication number: 20020066297
    Abstract: A door lock includes an outside spindle tube, an insert tube which is disposed inside the outside spindle tube and which has a latch operating tab, and a clutch member disposed inside the insert tube and having first and second axial grooves. The clutch member is movable axially between a first position, in which the first axial groove engages a first engaging member projecting inwardly from the outside spindle tube, and a second position, in which the first axial groove disengages from the first engaging member. The insert tube does not engage the first engaging member of the outside spindle tube, but has a second engaging member in engagement with the second axial groove of the clutch member. When the door lock is placed in a locking position by pressing an inside press button of the door lock, the spindle shaft connected with the press button moves the clutch member to the second position, thereby permitting the outside spindle tube to turn independently of the insert tube.
    Type: Application
    Filed: December 5, 2000
    Publication date: June 6, 2002
    Inventors: Rong-Faa Wu, Kun-Chen Tsai, Po-Yang Chen