Patents by Inventor Yusuke Makio

Yusuke Makio 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).

  • Powder electroluminescent element comprising inorganic electroluminescent particles and a polyurethane binder
    Patent number: 5069815
    Abstract: A powder electroluminescent element which comprises electroluminescent particles and an organic binder at least partly comprising a polyurethane shows a high emission intensity or brightness and has a prolonged operating life.
    Type: Grant
    Filed: December 1, 1989
    Date of Patent: December 3, 1991
    Assignees: Osaka-Fu, Itoh Seiyu Kabushiki Kaisha
    Inventors: Akira Aoki, Yukio Fujishima, Yusuke Makio, Susumu Kusakawa, Sadaaki Tsuji, Tadashi Okamura