Patents by Inventor Ryuji Yonemoto

Ryuji Yonemoto 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).

  • Publication number: 20100177911
    Abstract: A multi-way loudspeaker system comprising of frequency equalization circuit, a linear phase dividing network, with optional phase shifters to enable the loudspeaker to have substantially improved frequency and phase response characteristics but not limited thereto is discussed. The loudspeaker exhibits high accuracy not only in amplitude but also in time domain characteristics which results in an improved transmission characteristics of time sensitive signals such as square waves.
    Type: Application
    Filed: January 15, 2009
    Publication date: July 15, 2010
    Inventor: Ryuji Yonemoto
  • Patent number: 5386150
    Abstract: A memory has at least one decoder responsive to a synchronizing pulse for providing a selection signal to the memory cells coincident with the partial selection signal for thereby selecting a group of memory cells for an operation. The decoder has a variable time delay characteristic between the synchronizing pulse and the selection signal. The pulse generator has a mimicking circuit responsive to the synchronizing pulse for providing the partial selection signal to the group of memory cells. The mimicking circuit provides a time delay characteristic between the receipt of the synchronizing pulse and the partial selection signal which mimics the variable delay characteristic of the at least one decoder.
    Type: Grant
    Filed: November 20, 1991
    Date of Patent: January 31, 1995
    Assignee: Fujitsu Limited
    Inventor: Ryuji Yonemoto