Patents by Inventor Masayuki Okaniwa

Masayuki Okaniwa 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).

  • Organic electroluminescence device
    Patent number: 6489045
    Abstract: An organic electroluminescence device comprising a pair of electrodes and at least one organic compound layer disposed therebetween, wherein at least one of the electrodes is a light-transmittable electrode exhibiting a light-transmittance peak centered in a range of an emission peak wavelength of the device ±100 nm, and the light-transmittance peak has a half band width of 1 to 350 nm.
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: December 3, 2002
    Assignees: Fuji Photo Film Co., LTD, Fuji Photo Optical Co., Ltd.
    Inventors: Yasushi Araki, Masayuki Okaniwa
  • Electroconductive antireflection film
    Patent number: 5667880
    Abstract: An electroconductive antireflection film with a laminated structure is composed of at least four oxide layers, including a plurality of high-refractive-index layers and a plurality of low-refractive-index layers, at least one of the high-refractive-index layers serving as a transparent electroconductive layer and one of the low-refractive-index layers serving as a surface layer.
    Type: Grant
    Filed: May 24, 1995
    Date of Patent: September 16, 1997
    Assignee: Fuji Photo Optical Co., Ltd.
    Inventor: Masayuki Okaniwa