Patents by Inventor Takashi Shimmura

Takashi Shimmura 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).

  • Solder powders coated with fluorine compounds, and solder pastes
    Patent number: 4994326
    Abstract: A solder powder is coated with an agent that protects the powder from oxidation. The coating agent is substantially insoluble in a vehicle used to make solder pastes. Thus, pastes made with the coated powders also resist oxidation even when exposed to air. A method for making the coated solder powders is also disclosed and claimed.
    Type: Grant
    Filed: October 27, 1988
    Date of Patent: February 19, 1991
    Assignee: Tamura Kaken Co., Ltd.
    Inventors: Takashi Shimmura, Yoshihiro Miyano, Nobuo Tajima, Makoto Inoue