Patents by Inventor Chien-An Chiu

Chien-An Chiu 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).

  • Light guide for illuminating keypads
    Patent number: 7432464
    Abstract: A light guide (30) for illuminating a keypad (20) including a plurality of keys (22) includes a plurality of apertures (300) corresponding to the keys, and a plurality of slots (340). The slots are defined in a face of the light guide adjacent to the keypad.
    Type: Grant
    Filed: August 11, 2006
    Date of Patent: October 7, 2008
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Chien-An Chiu, Kuo-Chu Chang
  • LIGHT GUIDE FOR ILLUMINATING KEYPADS
    Publication number: 20070217181
    Abstract: A light guide (30) for illuminating a keypad (20) including a plurality of keys (22) includes a plurality of apertures (300) corresponding to the keys, and a plurality of projecting portions (340). The projecting portions protrude from a face of the light guide away from the keypad.
    Type: Application
    Filed: August 11, 2006
    Publication date: September 20, 2007
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: CHIEN-AN CHIU, KUO-CHU CHANG
  • LIGHT GUIDE FOR ILLUMINATING KEYPADS
    Publication number: 20070209918
    Abstract: A light guide (30) for illuminating a keypad (20) including a plurality of keys (22) includes a plurality of apertures (300) corresponding to the keys, and a plurality of slots (340). The slots are defined in a face of the light guide adjacent to the keypad.
    Type: Application
    Filed: August 11, 2006
    Publication date: September 13, 2007
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: CHIEN-AN CHIU, KUO-CHU CHANG
  • LIGHT GUIDE FOR ILLUMINATING KEYPADS
    Publication number: 20070209917
    Abstract: A light guide (30) for illuminating a keypad (20) including a plurality of keys (22) includes a plurality of apertures (300) corresponding to the keys, a first end portion (32) defining at least one receiving hole (320) for receiving at least one light source, and a second end portion (34) opposite to the first end portion. A thickness of the first end portion is greater than that of the second end portion.
    Type: Application
    Filed: August 11, 2006
    Publication date: September 13, 2007
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: CHIEN-AN CHIU, KUO-CHU CHANG