Patents by Inventor Masaki Kosemura

Masaki Kosemura 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).

  • Microcapsules and process for producing them
    Patent number: 4943449
    Abstract: Process for producing microcapsules. Wax or a mixture of wax and protein is dissolved in a mixed solvent consisting of an organic solvent and water, the surfaces of particles of a core substance are wetted with the resulting solution at temperatures of 45 deg.C or below to selectively deposit the wax or the mixture of wax and protein on the particle surfaces and allow them to coat the particle surfaces. And then a slurry containing the particles is subjected to a solvent removal treatment.
    Type: Grant
    Filed: September 1, 1987
    Date of Patent: July 24, 1990
    Assignee: Ohkawara Kakohki Co., Ltd.
    Inventors: Shizuo Aishima, Yoshito Takahashi, Masaki Kosemura, Masaaki Ohkawara