Patents by Inventor Seung H. Yoo

Seung H. Yoo 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).

  • Patent number: 5136443
    Abstract: A cassette front loading apparatus for DAT of tray type which loads and unloads a cassette by moving horizontally and vertically is disclosed. Without utilizing separately the loading motor and the lift and drop motor for moving the cassette horizontally and lifting and dropping the same, with existing capstan motor only, the loading and unloading operation including the horizontal and vertical movement, slider opening movement, cassette take out movement and location detecting operation and the like are executed. Accordingly, the loading motor and the lift and drop motor and the number of parts are deleted, consequently all of the mechanism is very much simplified, therefore the preciseness and the durability are expected to be enhanced. Since all of the mechanism is simplified, the cost of the product is decreased and the assembling process became easier simultaneously the productivity is remarkably increased.
    Type: Grant
    Filed: June 11, 1991
    Date of Patent: August 4, 1992
    Assignee: Goldstar Co., Ltd.
    Inventors: Seok P. Chung, Byung C. Lim, Seung H. Yoo
  • Patent number: 5060094
    Abstract: A cassette front loading apparatus of a digital audio tape recorders for tray type which loads and unloads a cassette by moving horizontally and vertically. A single capstan motor is used for loading and for the lifting and dropping and for moving the cassette horizontally and lifting and dropping the same, to effect the loading and unloading operation including the horizontal and vertical movement, slider opening movement, cassette take out movement and location detecting operation and the like. Consequently all of the mechanism is very much simplified whereby the preciseness and the durability are enhanced.
    Type: Grant
    Filed: November 18, 1988
    Date of Patent: October 22, 1991
    Assignee: Goldstar Co., Ltd.
    Inventors: Seok P. Chung, Byung C. Lim, Seung H. Yoo
  • Patent number: D293542
    Type: Grant
    Filed: February 27, 1985
    Date of Patent: January 5, 1988
    Assignee: Gold Star Co., Ltd.
    Inventor: Seung H. Yoo
  • Patent number: D294327
    Type: Grant
    Filed: December 20, 1985
    Date of Patent: February 23, 1988
    Assignee: Gold Star Co., Ltd.
    Inventor: Seung H. Yoo
  • Patent number: D304411
    Type: Grant
    Filed: February 18, 1987
    Date of Patent: November 7, 1989
    Assignee: Gold Star Co., Ltd.
    Inventor: Seung H. Yoo
  • Patent number: D304542
    Type: Grant
    Filed: February 18, 1987
    Date of Patent: November 14, 1989
    Assignee: Gold Star Co., Ltd.
    Inventor: Seung H. Yoo
  • Patent number: D304662
    Type: Grant
    Filed: February 18, 1987
    Date of Patent: November 21, 1989
    Assignee: Gold Star Co., Ltd.
    Inventor: Seung H. Yoo
  • Patent number: D304800
    Type: Grant
    Filed: February 18, 1987
    Date of Patent: November 28, 1989
    Assignee: Gold Star Co., Ltd.
    Inventor: Seung H. Yoo
  • Patent number: D305595
    Type: Grant
    Filed: February 18, 1987
    Date of Patent: January 23, 1990
    Assignee: Gold Star Co., Ltd.
    Inventor: Seung H. Yoo
  • Patent number: D305597
    Type: Grant
    Filed: February 18, 1987
    Date of Patent: January 23, 1990
    Assignee: Gold Star Co., Ltd.
    Inventor: Seung H. Yoo