Patents by Inventor Yasuo Enokido

Yasuo Enokido 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: 9584922
    Abstract: A hybrid speaker is provided. The hybrid speaker can include first magnets, second magnets, a yoke that accommodates the first and second magnets, a diaphragm, voice coils fixed at one face of the diaphragm, a frame, and a plate spring resiliently supporting the yoke at the frame. The first magnets can be arranged at predetermined intervals such that south poles or north poles thereof are oriented to the same side. The second magnets can have smaller volumes than the first magnets and be arranged singly or plurally between the first magnets their magnetic poles oriented the opposite those of the first magnets. The voice coils can be disposed so as to cross magnetic circuits between the first magnets and the yoke. The diaphragm can be fixed to the frame at periphery portions of the face at the side of the diaphragm at which the voice coils are fixed.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: February 28, 2017
    Assignee: FPS INC.
    Inventors: Masashi Hori, Tohru Nakabayashi, Yasuo Enokido
  • Publication number: 20150222995
    Abstract: A hybrid speaker is provided. The hybrid speaker can include first magnets, second magnets, a yoke that accommodates the first and second magnets, a diaphragm, voice coils fixed at one face of the diaphragm, a frame, and a plate spring resiliently supporting the yoke at the frame. The first magnets can be arranged at predetermined intervals such that south poles or north poles thereof are oriented to the same side. The second magnets can have smaller volumes than the first magnets and be arranged singly or plurally between the first magnets their magnetic poles oriented the opposite those of the first magnets. The voice coils can be disposed so as to cross magnetic circuits between the first magnets and the yoke. The diaphragm can be fixed to the frame at periphery portions of the face at the side of the diaphragm at which the voice coils are fixed.
    Type: Application
    Filed: May 17, 2013
    Publication date: August 6, 2015
    Inventors: Masashi Hori, Tohru Nakabayashi, Yasuo Enokido