Patents by Inventor Noble H. Yoshida

Noble H. Yoshida 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).

  • Process for the production of coating compositions containing microcapsules
    Patent number: 4985484
    Abstract: A process for the preparation of a coating composition containing microcapsules comprising the steps of:(a) preparing an aqueous dispersion of microcapsules,(b) adding a flow control agent to said aqueous dispersion microcapsules,(c) applying heat and vacuum to said aqueous dispersion of microcapsules containing said flow control agent to remove water from said dispersion of microcapsules and thereby concentrate said dispersion of microcapsules and(d) adding said concentrated dispersion of microcapsules to a printing ink vehicle to form a coating composition.
    Type: Grant
    Filed: February 27, 1989
    Date of Patent: January 15, 1991
    Assignee: The Mead Corporation
    Inventors: Noble H. Yoshida, John Brabender
  • Cholesteric liquid crystal formulations and time/temperature monitoring means
    Patent number: 4859360
    Abstract: Described are cholesteric liquid crystal formulations suitable for use as indicators of time and/or temperature, and methods for reliably characterizing and reproducing initial and subsequent batches of such cholesteric liquid crystal formulations. The formulations have a time-dependent, temperature-dependent limit in a pseudo-irreversible liquid crystal phase wherein when said limit is exceeded, the formulations exhibit a color change which is irreversible by cooling.
    Type: Grant
    Filed: March 21, 1986
    Date of Patent: August 22, 1989
    Assignee: Biosynergy, Inc.
    Inventors: Fred K. Suzuki, Sharon M. Mead, Noble H. Yoshida, Robert H. Dobberstein