Patents by Inventor Takumi Shirai

Takumi Shirai 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).

  • Resistor and its manufacturing method
    Patent number: 6150920
    Abstract: The present invention is to offer a resistor which can be mounted exactly on the terminals disposed on a circuit board regardless the sides of the resistor, and to offer its manufacturing method by forming the surface of the side-electrode layer at a height higher than the surface of protection layer, or by forming the surface of the second surface electrode layer at a height higher than the surface of protection layer. By these, the resistor can be mounted exactly on the terminal of circuit board at a high yield. Furthermore, since the first surface electrode layer and the second upper electrode layer are electrically connected together through a window provided on the protection layer, a higher connection reliability can be obtained.
    Type: Grant
    Filed: May 29, 1997
    Date of Patent: November 21, 2000
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masato Hashimoto, Shogo Nakayama, Shoji Mori, Naohiro Takashima, Seiji Tsuda, Takumi Shirai