Patents by Inventor Shizuyo Morikage

Shizuyo Morikage 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).

  • Multi-layered anti-reflection coating
    Patent number: 4726654
    Abstract: A multi-layered anti-reflection coating is provided having six or seven layers. The design can be defined by the following parameters:______________________________________ N.sub.1 < 1.5 N.sub.1 d.sub.1 = 0.25.lambda..sub.0 N.sub.2 > 1.8 0.11.lambda..sub.0 < N.sub.2 d.sub.2 < 0.19.lambda..sub.0 N.sub.3 < 1.7 0.02.lambda..sub.0 < N.sub.3 d.sub.3 < 0.08.lambda..sub.0 N.sub.4 > 1.8 0.12.lambda..sub.0 < N.sub.4 d.sub.4 < 0.23.lambda..sub.0 N.sub.5 > 1.5 0.28.lambda..sub.0 < N.sub.5 d.sub.5 < 0.36.lambda..sub.0 N.sub.6 < 1.5 0.04.lambda..sub.0 < N.sub.6 d.sub.6 < 0.14.lambda..sub.0 N.sub.7 > 1.5 0 .ltoreq. N.sub.7 d.sub.7 < 0.55.lambda..sub.0 N.sub.4 > N.sub.5 > N.sub.6 ______________________________________wherein N refers to the refractive index, d refers to the physical thickness with their respective subnumbers referring to the layer, with the first layer being the layer furthest from the substrate, and .lambda..sub.
    Type: Grant
    Filed: November 17, 1986
    Date of Patent: February 23, 1988
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Kazuo Kimura, Shizuyo Morikage