Patents by Inventor Izuo Ichikawa

Izuo Ichikawa 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).

  • Method of preparing coated solid preparations
    Patent number: 4533562
    Abstract: Solid materials, especially pharmaceutical preparations, are coated, without the use of solvents, with a powdered film-forming polymer and with a liquid plasticizer having an affinity for the polymer.
    Type: Grant
    Filed: April 19, 1984
    Date of Patent: August 6, 1985
    Assignee: Sankyo Company, Limited
    Inventors: Yoshihiko Ikegami, Kozo Kurihara, Izuo Ichikawa, Hisanori Nakane
  • Process for coating solid pharmaceutical preparations and coated preparations thus obtained
    Patent number: 4497847
    Abstract: A plasticizer for film-forming enteric polymers to be used in coating solid pharmaceutical preparations comprises a monoester or diester or both of glycerol with a saturated aliphatic carboxylic acid having from 6 to 10 carbon atoms. This is particularly useful for coating preparations from aqueous suspensions.
    Type: Grant
    Filed: October 11, 1983
    Date of Patent: February 5, 1985
    Assignee: Sankyo Company, Limited
    Inventors: Kozo Kurihara, Izuo Ichikawa, Hisanori Nakane, Yoshihiko Ikegami
  • Protective coating compositions
    Patent number: 4341563
    Abstract: Protective coating composition which comprises dispersed fine particles of one or more of compounds selected from a metal salt of a higher fatty acid, a higher fatty acid having a melting point of 40.degree.-90.degree. C., and a wax having a melting point of 40.degree.-90.degree. C. in an aqueous solution of a water-soluble film base and a surface-active agent having an HLB value of about 1.7 to 8.6 or silicon oil.
    Type: Grant
    Filed: May 8, 1980
    Date of Patent: July 27, 1982
    Assignee: Sankyo Company Limited
    Inventors: Kozo Kurihara, Toshio Fukazawa, Izuo Ichikawa, Yoshihiko Ikegami, Naohiko Fukiyama, Masaru Ikeda