Patents by Inventor Shyuichi Ohtsuka

Shyuichi Ohtsuka 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).

  • Information recording with an organic compound capable of assuming two or more convertible stable aggregation states
    Patent number: 3977009
    Abstract: A recording method which comprises selectively applying a DC or AC electric field to a layer of a recording medium on a support, the recording medium comprising at least one organic compound capable of assuming two or more convertible aggregation states at the same temperature, thereby selectively converting the initial aggregation state of the organic compound to which the field is applied into another aggregation state or hindering the converting of the initial aggregation state of the organic compound into another aggregation state.
    Type: Grant
    Filed: September 12, 1974
    Date of Patent: August 24, 1976
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shyuichi Ohtsuka, Seiichi Taguchi