Patents by Inventor Mariko Fukumoto

Mariko Fukumoto 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).

  • Antireflection coating for infrared light
    Patent number: 5243458
    Abstract: An antireflection coating which comprises a substrate and a multilayered coating is provided. The substrate is made of silicon (Si) or germanium (Ge). The multilayered coating is formed on the substrate and consists of a plurality of layers. In the multilayered coating, a layer of silicon dioxide (SiO.sub.2) of a predetermined thickness is contiguously formed to the substrate.
    Type: Grant
    Filed: December 20, 1991
    Date of Patent: September 7, 1993
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Takuji Hatano, Mariko Fukumoto