Patents by Inventor Jong D. Lee

Jong D. 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).

  • Multipurpose automobile sunvisor
    Patent number: 5490708
    Abstract: A multipurpose automobile sunvisor for shading direct rays of sunlight includes a main body (10)comprised of a pair of panel members (11)and (12); a bent supporting bar (21) one end of which is rotatably engaged with an upper portion of main body (10) and the other end of which is secured onto the automobile's chassis; a socket portion (24) engaging with the other end of said bent supporting bar (21); a light-shading portion (30) having a light-shading screen (31) tinted for screening the direct rays of light, and a receiving slot (13) built in main body (10) for receiving the light-shading screen; a light-shading-screen miser (300) for pulling light-shading screen (31) of light-shading portion (30) into receiving slot (13) of main body (10); a writing equipment installed on main body (10) and having a writing instrument (41); and a writing instrument drawing device (50) for restoring the writing instrument in pen holder (42).
    Type: Grant
    Filed: June 8, 1994
    Date of Patent: February 13, 1996
    Inventor: Jong D. Lee
  • Method for producing silicon tip field emitter arrays
    Patent number: 5458518
    Abstract: The present invention provides for a method for manufacturing a field emitter array comprising the steps of depositing a silicon nitride mask pattern layer on the silicon substrate, forming a porous silicon layer in the substrate except in parts under the nitride mask patterns and oxidizing the porous silicon layer and the silicon substrate under the silicon layer, which results in formation of cone shape cathode tips. Further, gates corresponding to said cathode tips are provided by the conventional process or by process of depositing thin metal film and photoresist on the mask patterns and the porous silicon layer, etching the photoresist layer on the patterns, and then etching the metal film on the patterns, or by lift-off process.
    Type: Grant
    Filed: November 7, 1994
    Date of Patent: October 17, 1995
    Assignee: Korea Information & Communication Co., Ltd.
    Inventor: Jong D. Lee
  • Antitheft car audio set with removable control box
    Patent number: 4940414
    Abstract: A separable car audio set for antitheft includes a control box, a face plate, a frame and a contact block assembly between the face plate and the frame. The face plate has a concave well in and from which the control box is easily received and separated. When it is desired top protect the audio set from theft during parking the control box will be easily removed from the concave well of the face plate without separating the whole audio set from a vehicle.
    Type: Grant
    Filed: April 28, 1989
    Date of Patent: July 10, 1990
    Assignee: Namsung Electronics Corp.
    Inventor: Jong D. Lee