Patents by Inventor Katsunobu Sagawa

Katsunobu Sagawa 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).

  • Intumescent fire-resistant coating, fire-resistant material, and process for producing the fire-resistant material
    Patent number: 5401793
    Abstract: An intumescent fire-resistant coating and a fire-resistant material using the same are disclosed, the coating essentially including (A) at least one inorganic compound selected from the group consisting of a carbide, boride, nitride, carbonitride, or carboboride of titanium, zirconium, vanadium, niobium, tantalum, molybdenum, tungsten, silicon or chromium and a carbide, nitride or carbonitride of boron, (B) a synthetic resin, and (C) at least one phosphorus and/or sulfur compound capable of forming a Lewis acid on heating.
    Type: Grant
    Filed: March 18, 1992
    Date of Patent: March 28, 1995
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Nobuo Kobayashi, Hikaru Yoshioki, Kenji Yoshida, Katsunobu Sagawa, Shigehisa Ishihara