Patents by Inventor Takashi Tsuyoshi

Takashi Tsuyoshi 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).

  • Oral bandage and oral preparations
    Patent number: 4772470
    Abstract: An oral bandage comprising a soft adhesive film comprising a mixture of a polycarboxylic acid and/or a polycarboxylic acid anhydride and a vinyl acetate polymer in a compatible state, and an oral preparation comprising such an oral bandage having incorporated therein a topical drug are disclosed. The oral bandage or preparation exhibits strong adhesion of long duration when applied to the oral mucosa or teeth.
    Type: Grant
    Filed: April 25, 1986
    Date of Patent: September 20, 1988
    Assignees: Nitto Electric Industrial Co., Ltd., Sunstar Inc.
    Inventors: Yuichi Inoue, Tetuo Horiuchi, Kenji Hsaegawa, Koichi Nakashima, Takashi Tsuyoshi