Patents by Inventor Tatsurou Usuki

Tatsurou Usuki 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).

  • Surface acoustic wave device
    Patent number: 6965190
    Abstract: A surface acoustic wave device including an electrode formed from an electrode material represented by the composition formula MxVy wherein M is aluminum or an aluminum-copper alloy, V is vanadium, x+y=100 and 0.10?y<0.2. The device is excellent in durability against applying electric power and diminished in internal resistance.
    Type: Grant
    Filed: September 10, 2002
    Date of Patent: November 15, 2005
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Toshio Tanuma, Kouichi Yoshioka, Tatsurou Usuki, Naoki Tanaka, Hideki Itou
  • Surface acoustic wave device
    Publication number: 20030094883
    Abstract: The invention provides a surface acoustic wave device comprising an electrode formed from an electrode material represented by the composition formula MxVy wherein M is aluminum or an aluminum-copper alloy, V is vanadium, x+y=100 and 0.10≦y<0.2. The device is excellent in durability against applying electric power and diminished in internal resistance.
    Type: Application
    Filed: September 10, 2002
    Publication date: May 22, 2003
    Inventors: Toshio Tanuma, Kouichi Yoshioka, Tatsurou Usuki, Naoki Tanaka, Hideki Itou