Patents by Inventor Shun-Fan Cheng

Shun-Fan Cheng 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).

  • Mobile phone and battery-fixing device thereof
    Patent number: 7457407
    Abstract: A mobile phone and a battery-fixing device. The mobile phone comprises a body, a battery, and a positioning device. The body includes a first guiding member. The battery is disposed on the body in a detachable manner, and includes a second guiding member corresponding to the first guiding member. The battery moves in the body by the second guiding member moving along the first guiding member. The positioning device is disposed on the body, and fixes the battery in the body.
    Type: Grant
    Filed: August 26, 2004
    Date of Patent: November 25, 2008
    Assignee: Qisda Corporation
    Inventors: Chin-Kai Sun, Shun-Fan Cheng
  • Sliding shell
    Publication number: 20070060219
    Abstract: A sliding shell comprises a first shell body with a first surface, a first interface layer formed by coating a smooth material on the first surface, a first sliding assembly formed on the first surface of the first shell body, a second shell body with a second surface, and a second sliding assembly formed on the second surface of the second shell body. The second sliding. assembly is correspondingly connected to the first sliding assembly to allow the first shell body sliding between the first position and the second position on the second shell body. In addition, the first interface layer overlaps the second surface, and thus the first interface layer can make the sliding between two shell bodies with benefits of smooth sliding and abrasion prevention.
    Type: Application
    Filed: September 9, 2005
    Publication date: March 15, 2007
    Inventors: Hung-Chih Lin, Shun-Fan Cheng
  • Mobile phone and battery-fixing device thereof
    Publication number: 20050058284
    Abstract: A mobile phone and a battery-fixing device. The mobile phone comprises a body, a battery, and a positioning device. The body includes a first guiding member. The battery is disposed on the body in a detachable manner, and includes a second guiding member corresponding to the first guiding member. The battery moves in the body by the second guiding member moving along the first guiding member. The positioning device is disposed on the body, and fixes the battery in the body.
    Type: Application
    Filed: August 26, 2004
    Publication date: March 17, 2005
    Applicant: BENQ CORPORATION
    Inventors: Chin-Kai Sun, Shun-Fan Cheng
  • Mobile phone and battery-fixing device
    Publication number: 20040209659
    Abstract: A mobile phone and a device for fixing a battery thereof. The mobile phone includes a body and a battery. The body includes a first engaging portion, and the battery includes a second engaging portion. The battery is rotated to a predetermined position and is thereby fixed on the body.
    Type: Application
    Filed: April 13, 2004
    Publication date: October 21, 2004
    Applicant: BENQ Corporation
    Inventors: Chin-Kai Sun, Shun-Fan Cheng