Patents Assigned to Acoustic Design, Inc.
  • Armored voice coil assembly for use in high power loudspeaker applications
    Patent number: 7729503
    Abstract: An armored voice coil assembly comprises a former that is impregnated with a curable resin, preferably polyimide resin. Voice coil wire is wound around the outside surface of the former and is then preferably encased with an outer layer of resin impregnated glass fabric wrapped around the voice coil windings, effectively enveloping the voice coil within inner and outer layers of fabric and resin. The armored voice coil assembly is then cured into a solid shape.
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: June 1, 2010
    Assignee: Acoustic Design, Inc.
    Inventor: Larry J. Young
  • Sound absorbing structure
    Patent number: 6568135
    Abstract: A sound absorbing structure including a sound absorbing member, an air layer, and a resonant sound absorbing structure. The air layer is formed in the rear of the sound absorbing member. The resonant sound absorbing structure includes a slit and is formed in the rear of the sound absorbing member. The sound absorbing member is a surface plate covering the rear air layer and the resonant sound absorbing structure, and the sound absorbing member is shaped in one of a plate and plane.
    Type: Grant
    Filed: April 24, 2000
    Date of Patent: May 27, 2003
    Assignees: Nichias Corporation, Alumu Corporation, Yotsumoto Acoustic Design Inc.
    Inventors: Yoshiaki Yokoyama, Shinji Migita, Shinichi Okuzono, Kyoji Fujiwara, Takuya Fujimoto, Yukio Hattori