Patents by Inventor Toshimitsu Katoh

Toshimitsu Katoh 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).

  • Gas flow controlling device and soldering apparatus using same
    Patent number: 6116491
    Abstract: A gas flow controlling device including a housing having a gas inlet and a gas outlet and defining therewithin a gas flow passage diverging in the direction from the inlet to the outlet so that the cross-sectional area of the gas flow passage increases from the inlet to the outlet, and a plurality of spaced apart baffle plates provided in the gas flow passage to render the gas flow passage meandering. An apparatus for soldering an article, including a wave-soldering zone for contacting the article with a solder wave, and one or more above-mentioned gas flow controlling devices for establishing an inert gas atmosphere in the soldering zone.
    Type: Grant
    Filed: January 14, 1998
    Date of Patent: September 12, 2000
    Assignee: Nihon Den-Netsu Keiki Co. Ltd.
    Inventor: Toshimitsu Katoh