Patents by Inventor Junko Wada

Junko Wada 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).

  • Patent number: 4904567
    Abstract: An optical recording member comprising a recording layer containing a light abosrbing substance supported on a substrate in which recording is made by the thermal deformation of the recording layer owing to laser beams and reproduction is made by the reading the difference of the reflection between the non-deformation portion and the deformation portion, said light absorbing substance being represented by the following formula: ##STR1## wherein one of X and Y is --O(C.sub.2 H.sub.4 O).sub.n R wherein R is an alkyl group which may be branched and n is a number of from 1 to 6, and the other is a hydrogen atom, and A is VO, Cu, Ni, or Co.
    Type: Grant
    Filed: February 18, 1988
    Date of Patent: February 27, 1990
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Shuichi Maeda, Yutaka Kurose, Junko Wada