Patents by Inventor Yasumasa Hamuro

Yasumasa Hamuro 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).

  • Stabilized fuel slurry
    Patent number: 4195975
    Abstract: A fuel slurry comprising a mixture of a fuel oil and pulverized coal may be effectively stabilized with a small amount of a condensation product of a sulfonated benzene or naphthalene derivative-formaldehyde, ligninsulfonic acid, carboxymethylcellulose, carboxymethyl-starch or a salt thereof.
    Type: Grant
    Filed: April 17, 1978
    Date of Patent: April 1, 1980
    Assignee: Dai-Ich Kogyo Seiyaku Co., Ltd.
    Inventors: Yasumasa Hamuro, Akihiro Naka, Shuichi Honjo