Patents by Inventor Yeo-Joo Yoon

Yeo-Joo Yoon 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).

  • Method of nickel-gold plating and printed circuit board
    Patent number: 7982138
    Abstract: Disclosed are a method of electroless nickel-gold plating an object and a printed circuit board. The method in accordance with an embodiment of the present invention includes: forming a first nickel plated layer on a surface of the object; forming a second nickel plated layer on the first nickel plated layer; and forming a gold plated layer on the second nickel plated layer.
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: July 19, 2011
    Assignees: Samsung Electro-Mechanics Co., Ltd., Samsung LED Co., Ltd.
    Inventors: Jin-Hak Choi, Seoung-Jae Lee, Bae-Kyun Kim, Eun-Ju Yang, Jong-Yun Kim, Yeo-Joo Yoon
  • METHOD OF NICKEL-GOLD PLATING AND PRINTED CIRCUIT BOARD
    Publication number: 20100059257
    Abstract: Disclosed are a method of electroless nickel-gold plating an object and a printed circuit board. The method in accordance with an embodiment of the present invention includes: forming a first nickel plated layer on a surface of the object; forming a second nickel plated layer on the first nickel plated layer; and forming a gold plated layer on the second nickel plated layer.
    Type: Application
    Filed: February 11, 2009
    Publication date: March 11, 2010
    Inventors: Jin-Hak CHOI, Seoung-Jae Lee, Bae-Kyun Kim, Eun-Ju Yang, Jong-Yun Kim, Yeo-Joo Yoon