Patents by Inventor Akira Wakana

Akira Wakana 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: 6085858
    Abstract: In a suspension assembly for an automotive engine of a front-engine/front-drive vehicle and for supporting the engine to a frame by an engine mount, an arrangement position of the engine mount in the vehicle is in the range between a vertical plane including an inertia main axis in a rolling direction of the engine and a vertical plane including a centerline of a drive shaft. Then, the vertical plane including the inertia main shaft is not included in the range and the vertical plane including the centerline of the drive shaft is included in the range. Thus, the arrangement position of the engine mount may be set in consideration of all of the idle vibration property, the drivability and the degree of freedom of design.
    Type: Grant
    Filed: June 15, 1998
    Date of Patent: July 11, 2000
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Akira Wakana, Tadashi Kimura, Naoto Hirasaka
  • Patent number: 5023932
    Abstract: In a radio communication system comprising a fixed unit (10) carrying out a first scanning operation at a channel scanning period in a waiting state and a portable unit (11) intermittently put in a waiting state thereof into active and inactive for active and inactive durations, respectively, the portable unit comprises a power source circuit (30) for rendering a sum of the active and the inactive durations equal to the channel scanning period. In each active state, a frequency synthesizer (39) carries out a second scanning operation to successively scan the radio channels one by one in cooperation with the controller (38) to detect whether or not each of the radio channels is idle. The second scanning operation may proceed either in the same order as the first scanning operation or in a reverse order relative to the first scanning operation. Alternatively, the second scanning operation may be carried out in a phase different from the first scanning operation.
    Type: Grant
    Filed: June 30, 1989
    Date of Patent: June 11, 1991
    Assignee: NEC Corporation
    Inventor: Akira Wakana