Patents by Inventor Kai Vuokko

Kai Vuokko 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: 6157819
    Abstract: The antenna (D) of a radio telephone radiates electromagnetic RF radiation which is directed to a dielectric body block (10) according to the invention. By means of an inner and an outer conductor (1, 2) formed on the surface of the block a signal carried by the electromagnetic radiation is coupled to a coaxial cable (12) which takes it to an external antenna.
    Type: Grant
    Filed: May 14, 1997
    Date of Patent: December 5, 2000
    Assignee: LK-Products Oy
    Inventors: Kai Vuokko, Petteri Annamaa
  • Patent number: 5990848
    Abstract: The invention relates to a particular structure of high-frequency antenna, which comprises a support element (1) provided with a cylindrical coil conductor which forms a helix (2). On the support element (1) there is formed, for example by means of a conductive coating, the electrical parts of the antenna, such as the attachment points (3b) for the helix and for other parts, such as feeder lines (4), radiators (5) or impedance matching devices. By varying the number and size of the helices (2), the number and form of the feeder lines (4) and radiators (5) and the quality of any impedance matching devices, it is possible without difficulty to obtain a very wide choice of different antenna structures. The feeder lines and radiators extend, at least in part, within the helix.
    Type: Grant
    Filed: February 18, 1997
    Date of Patent: November 23, 1999
    Assignee: LK-Products OY
    Inventors: Petteri Annamaa, Seppo Ojantakanen, Seppo Raatikainen, Tero Haapamaki, Pekka Kinnunen, Kai Vuokko, Tero Kuittinen