Patents by Inventor Tadayoshi Yazaki

Tadayoshi Yazaki 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).

  • Anti-protista preparation
    Patent number: 6939510
    Abstract: The present invention provides a sustained-releasing anti-protista preparation, including using a water-insoluble or difficulty water soluble and water-wettable polymer compound which is solid at room temperature as a sustained-releasing substrate material, a method for a preparation of the sustained-releasing anti-protista preparation, including kneading a water-insoluble or difficulty water soluble and water-wettable polymer compound which is solid at room temperature with an anti-protista substrate, and a sustained-releasing anti-protista preparation for a waterway, including using a water insoluble or difficulty water soluble and water-wettable polymer compound which is solid at room temperature as a sustained-releasing substrate material.
    Type: Grant
    Filed: April 23, 2001
    Date of Patent: September 6, 2005
    Assignee: Wako Pure Chemical Industries, Ltd.
    Inventors: Hiroyuki Kato, Tadayoshi Yazaki, Tokihiko Maruyama
  • Anti-protista preparation
    Publication number: 20010048916
    Abstract: The present invention provides a sustained-releasing anti-protista preparation, comprising using a water-insoluble or difficulty water soluble and water-wettable polymer compound which is solid at room temperature as a sustained-releasing substrate material, a method for a preparation of the sustained-releasing anti-protista preparation, comprising kneading a water-insoluble or difficulty water soluble and water-wettable polymer compound which is solid at room temperature with an anti-protista substance, and a sustained-releasing anti-protista preparation for a waterway, comprising using a water-insoluble or difficulty water soluble and water-wettable polymer compound which is solid at room temperature as a sustained-releasing substrate material.
    Type: Application
    Filed: April 23, 2001
    Publication date: December 6, 2001
    Applicant: WAKO PURE CHEMICAL INDUSTRIES, LTD
    Inventors: Hiroyuki Kato, Tadayoshi Yazaki, Tokihiko Maruyama