Patents by Inventor Yuko Hashino

Yuko Hashino 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).

  • Etching Liquid for thermoplastic polyimide resin
    Publication number: 20030153476
    Abstract: The invention concerns an etching liquid appropriate for etching thermoplastic polyimide resins. The etching liquid it is composed of an aliphatic amino-alcohol whose number of carbon is equal or inferior to 4 having an amino group or an imino group and a hydroxyl group in a molecular thereof, and a tetra alkyl ammonium hydroxide aqueous solution.
    Type: Application
    Filed: January 30, 2003
    Publication date: August 14, 2003
    Inventors: Masanori Akita, Toshio Urashima, Minoru Oyama, Atsushi Suzuki, Yuko Hashino, Miharu Kaneko