Patents by Inventor Yukio Akatsu

Yukio Akatsu 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).

  • Patent number: 4838356
    Abstract: Function and integrity testing of remotely controlled and automatic foam generating fire suppression equipment is provided. By remote systems, the entire functionality of such installations can be assessed without the requirement for direct physical access commonly required for such equipment. In addition, the seals employed in the system to isolate the fire extinguishing equipment from the protected environment are subjected to non-destructive testing, providing for protection of the environment from the testing procedure, as by the release of the generated foam.
    Type: Grant
    Filed: April 2, 1987
    Date of Patent: June 13, 1989
    Assignee: Tokyo Bosai Setsubi Company, Limited
    Inventor: Yukio Akatsu
  • Patent number: D307647
    Type: Grant
    Filed: November 29, 1988
    Date of Patent: May 1, 1990
    Assignees: FS Manufacturing Co., Ltd., Tokyo Bosai Setsubi Co., Ltd., Marubeni Construction Material Lease Co., Ltd.
    Inventors: Yasuo Yamamura, Yukio Akatsu, Tetsuyuki Sugimoto