Patents by Inventor Akira Akagawa

Akira Akagawa 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).

  • Antibacterial water-soluble cutting fluid resistant to yeast-like fungi
    Patent number: 4995997
    Abstract: A bactericide is added to conventional water-soluble cutting fluids to suppress deterioration by microorganisms. Such fluids are however accompanied by the drawbacks that the bactericide has a narrow antibacterial spectrum and moreover its effects last a short time. It is the object of the present invention to offers water-soluble cutting fluids which remain resistant to a wide variety of microorganisms for a long time. The present invention therefore offers water-soluble cutting fluids to which has been added a specific amine selected from amines known to date.
    Type: Grant
    Filed: February 14, 1990
    Date of Patent: February 26, 1991
    Assignee: Yushiro Chemical Industry Co., Ltd.
    Inventors: Masahiro Noda, Masaharu Fuchigami, Akira Akagawa