Patents by Inventor Yoon-Hong Yang

Yoon-Hong Yang 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: 20100155990
    Abstract: Disclosed is a method for manufacturing a keypad of a portable terminal, in which a metal thin layer (62) deposited on a base film (61) is easily and finely patterned to form fonts (62a) having a three-dimensional pattern, and key top-shaped grooves (61a) are formed in a metal laminate thin film (60) and filled with injecting molded matter (70).
    Type: Application
    Filed: May 23, 2006
    Publication date: June 24, 2010
    Applicant: DK UIL CO., LTD.
    Inventors: Yoon Hong Yang, Ji Young Hyun
  • Patent number: 7027036
    Abstract: A keypad for a mobile phone includes a circuit board having a fixed contact point; a dome switch disposed on the circuit board; a base pad member having a projection for pressing the dome switch to generate signal; an upper pad member having a key top, the upper pad member being integrally formed with the base pad member, and an EL element disposed surface-contacting between the base pad member and the upper pad member.
    Type: Grant
    Filed: May 15, 2002
    Date of Patent: April 11, 2006
    Assignee: Youeal Electronics Co., Ltd.
    Inventor: Yoon-Hong Yang
  • Publication number: 20050274594
    Abstract: A method for making a metallic keypad includes the steps of forming a key using thermoplastic resin through an injection molding process, forming a conductive layer on a surface of the key, marking a function sign on the conductive layer, and forming a metal layer on the conductive layer except for the function sign.
    Type: Application
    Filed: September 27, 2004
    Publication date: December 15, 2005
    Inventors: Yoon-Hong Yang, Eun-Ki Hong, Jong-Il Lee
  • Publication number: 20020175899
    Abstract: A keypad for a mobile phone includes a circuit board having a fixed contact point; a dome switch disposed on the circuit board; a base pad member having a projection for pressing the dome switch to generate signal; an upper pad member having a key top, the upper pad member being integrally formed with the base pad member, and an EL element disposed surface-contacting between the base pad member and the upper pad member.
    Type: Application
    Filed: May 15, 2002
    Publication date: November 28, 2002
    Inventor: Yoon-Hong Yang
  • Patent number: 6423171
    Abstract: A keypad for a portable telephone and manufacturing method thereof is disclosed. The method comprises the steps of printing characters on a transparent, planar film; pre-forming the planar film through a pressing process such that the planar film has a predetermined shape including a plurality of depressions; punching slits in the pressed planar film around the depressions; filling liquid silicone rubber into the depressions of the pressed planar film; forming a keypad by pressing the silicon rubber in a metal mold so as to fabricate an integrated keypad in which keys are interconnected; and trimming an outer periphery of the formed keypad according to a predetermined keypad shape.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: July 23, 2002
    Assignee: You Eal Electronics Co., Ltd.
    Inventor: Yoon-Hong Yang
  • Publication number: 20010014152
    Abstract: A keypad for a portable telephone and manufacturing method thereof is disclosed. The method comprises the steps of printing characters on a transparent, planar film; pre-forming the planar film through a pressing process such that the planar film has a predetermined shape including a plurality of depressions; punching slits in the pressed planar film around the depressions; filling liquid silicone rubber into the depressions of the pressed planar film; forming a keypad by pressing the silicon rubber in a metal mold so as to fabricate an integrated keypad in which keys are interconnected; and trimming an outer periphery of the formed keypad according to a predetermined keypad shape.
    Type: Application
    Filed: April 23, 2001
    Publication date: August 16, 2001
    Applicant: You Eal Electronics Co., Ltd Korea corporation
    Inventor: Yoon-Hong Yang