Patents by Inventor Hideki Nakahara

Hideki Nakahara 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 producing a silicone defoamer composition
    Patent number: 4639489
    Abstract: Foam control compositions are prepared by reacting a mixture of components which include a polyorganosiloxane fluid bearing one or more hydroxyl and/or hydrocarbonoxy groups, a resinous siloxane or a silicone resin-producing silicon compound, a finely divided filler material and a catalyst to promote the reaction of the listed components. The compositions can optionally contain a polyorganosiloxane fluid which is substantially free of reactive groups and/or a polyorganosiloxane fluid bearing two or more hydroxyl and/or hydrocarbonoxy groups.
    Type: Grant
    Filed: May 29, 1985
    Date of Patent: January 27, 1987
    Assignee: Dow Corning Kabushiki Kaisha
    Inventors: Koichi Aizawa, Shingo Sewa, Hideki Nakahara