Patents by Inventor Yoji Toma

Yoji Toma 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).

  • Bleaching compositions
    Patent number: 4756845
    Abstract: A bleaching agent composition comprising a peroxide capable of releasing hydrogen peroxide in aqueous solution, in admixture with an activator for the peroxide selected from the group consisting of naphthonitriles, isophthalonitrides, terephthalonitriles, alkali metal salts of cyanic acid, cyanic acid ammonium salt, cyanopyridines and acid neutralized products thereof, cyanopyridinium salts, O-acyl compounds, and N-acyl compounds has improved bleaching power and enables bleaching of an article within a short period of time.
    Type: Grant
    Filed: May 28, 1986
    Date of Patent: July 12, 1988
    Assignee: Lion Corporation
    Inventors: Hiroshi Sugawara, Yoji Toma, Takahiro Takabe, Kenji Yokoi