Patents by Inventor Michiko Seki

Michiko Seki 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).

  • External preparation for application to the skin containing lidocaine
    Patent number: 5827529
    Abstract: An external preparation for application to the skin containing lidocaine which comprises a drug-retaining layer placed on a support, wherein said drug-retaining layer comprises an adhesive gel base and 1 to 10% by weight of lidocaine, said base comprising a water-soluble high molecular weight substance, water and a water-retaining agent, which can release the active lidocaine gradually and constantly so that lidocaine is transdermally absorbed for a long period of time.
    Type: Grant
    Filed: June 10, 1994
    Date of Patent: October 27, 1998
    Assignee: Teikoku Seiyaku Kabushiki Kaisha
    Inventors: Masahiro Ono, Mitsuji Akazawa, Michiko Seki, Kiyomi Iwamoto, Ryoji Konishi