Patents by Inventor Hideyuki Kobori

Hideyuki Kobori 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).

  • Reversible thermosensitive recording material and method for producing the same
    Patent number: 5342815
    Abstract: A reversible thermosensitive recording material composed of a support, and a reversible thermosensitive recording layer formed on the support, containing a matrix resin and an organic low-molecular-weight material, the organic low-molecular-weight material being dispersed in the form of discrete domains in the matrix resin, thereby constituting a phase-separation structure, with the periodic distance of the phase-separation structure of the reversible thermosensitive recording layer being 1.3 .mu.m or less. This reversible thermosensitive recording material can be produced by applying a coating liquid containing the organic low-molecular-weight material and the matrix resin which are dissolved in a solvent to the support to form the reversible thermosensitive recording layer on the support; and drying the applied coating liquid under such conditions controlled so as to obtain a 1.3 .mu.
    Type: Grant
    Filed: August 25, 1993
    Date of Patent: August 30, 1994
    Assignee: Ricoh Company, Ltd.
    Inventors: Kunitoshi Sugiyama, Hideyuki Kobori, Shuji Hanai, Tsutomu Kagawa