Patents by Inventor Mayumi Aimoto

Mayumi Aimoto 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).

  • Resin etching solution and process for etching polyimide resins
    Patent number: 6218022
    Abstract: A resin etching solution containing a hydroxyalkylamine, an alkali metal compound and water, or an aliphatic alcohol, an aliphatic amine, an alkali metal compound and water, and a process for etching a polyimide film containing a resist pattern or metal layer pattern formed on either or both sides using the resin etching solution.
    Type: Grant
    Filed: September 9, 1997
    Date of Patent: April 17, 2001
    Assignee: Toray Engineering Co., Ltd.
    Inventors: Atushi Suzuki, Mayumi Aimoto, Takashi Kubota, Masanori Akita, Koji Itoh