Patents by Inventor Wook-Jin Jang

Wook-Jin Jang 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).

  • Seven-speed powertrain of an automatic transmission for vehicles
    Publication number: 20070129205
    Abstract: Seven forward speeds and three reverse speeds are realized by combining two compound planetary gear sets using three clutches and four brakes, and each shift speed is realized by operating two frictional elements, thereby reducing a capacity of a hydraulic pump and enhancing an efficiency of a hydraulic pressure control by realizing each shift speed by operating two frictional elements. A first shift portion and a second shift portion are disposed on the same shaft axis. The first shift portion includes a first planetary gear set formed as a double pinion planetary gear set and a second planetary gear set formed as a single pinion planetary gear set, and the second shift portion includes a third planetary gear set formed as a single pinion planetary gear set and a fourth planetary gear set formed as a single pinion planetary gear set. The first shift portion is combined by one clutch and two brakes, and the second shift portion is combined by one clutch and two brakes.
    Type: Application
    Filed: December 15, 2005
    Publication date: June 7, 2007
    Inventor: Wook Jin Jang
  • Asynchronous transfer mode (ATM) traffic control apparatus and control method for handling a wide variety of ATM services
    Patent number: 6175554
    Abstract: An ATM traffic control apparatus and method for adaptively controlling ATM traffics.
    Type: Grant
    Filed: April 28, 1998
    Date of Patent: January 16, 2001
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Wook-Jin Jang, Chang-Soo Lim