Patents by Inventor Syoichi Sawahata

Syoichi Sawahata 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).

  • Sampler for analyzers
    Patent number: 4008620
    Abstract: An analyzer, and more specifically a sampler for exhaust-gas monitoring and analyzing apparatus, comprising a pipe for introducing clean air into the sampler, a sampling tube for drawing in gasses by suction, and an extracting tube for conducting the gas sample to an analyzer. The sampler is designed so that the admission of clean air thereto creates a sufficient suction effect for drawing in the gasses to be sampled.
    Type: Grant
    Filed: May 5, 1975
    Date of Patent: February 22, 1977
    Assignee: Hitachi, Ltd.
    Inventors: Kiyoshi Narato, Keizo Ootsuka, Syoichi Sawahata