Patents by Inventor Doo Hum Lee

Doo Hum Lee 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).

  • Electromagnetic active engine mount apparatus
    Patent number: 8100388
    Abstract: An electromagnetic active engine mount apparatus includes a sub-channel through which working fluid flows is formed in the central portion of an electromagnetic drive so as to be able to cool heat generated from the coil of a solenoid section of the electromagnetic drive by repetitive operation of a vibrating member. Thus, the electromagnetic active engine mount apparatus can inhibit the heat generated from the coil to thus prevent thermal damage to various components formed of rubber, and provide improvement of its durability, reduction of its size, and simplification of its structure.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: January 24, 2012
    Assignees: Hyundai Motor Company, Daedong Movel System Co., Ltd., Automobile Industrial Ace Co., Ltd., Daedong System Co., Ltd.
    Inventors: Doo Hum Lee, Hyung Su Kang, Jeong Hoon Kim, Sung Woo Hong, Ho Chul Lee
  • Electromagnetic Active Engine Mount Apparatus
    Publication number: 20090295050
    Abstract: An electromagnetic active engine mount apparatus includes a sub-channel through which working fluid flows is formed in the central portion of an electromagnetic drive so as to be able to cool heat generated from the coil of a solenoid section of the electromagnetic drive by repetitive operation of a vibrating member. Thus, the electromagnetic active engine mount apparatus can inhibit the heat generated from the coil to thus prevent thermal damage to various components formed of rubber, and provide improvement of its durability, reduction of its size, and simplification of its structure.
    Type: Application
    Filed: May 28, 2009
    Publication date: December 3, 2009
    Applicants: Hyundai Motor Company, Daedong Movel System Co., Ltd., Automobile Industrial Ace Co., Ltd., Daedong System Co., Ltd.
    Inventors: Doo Hum Lee, Hyung Su Kang, Jeong Hoon Kim, Sung Woo Hong, Ho Chul Lee
  • Electromagnetic Active Engine Mount
    Publication number: 20090256294
    Abstract: An electromagnetic active engine mount includes a main body having a chamber in which non-compressive fluid is encapsulated, and an anti-vibration rubber installed at an upper portion thereof, and an electromagnetic driver having a vibrating unit for generating vibration when vibration is transmitted from an engine, and a solenoid installed at a lower portion of the vibrating unit in order to control the vibration of the vibrating unit.
    Type: Application
    Filed: April 13, 2009
    Publication date: October 15, 2009
    Applicants: Hyundai Motor Company, DAEDONG MOVEL SYSTEM CO., LTD., AUTOMOBILE INDUSTRIAL ACE CO., LTD.
    Inventors: Doo Hum Lee, Hyung Su Kang, Jae San Kim, Jeong Hoon Kim