Patents by Inventor Tetsuyuki Michinio

Tetsuyuki Michinio 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).

  • Patent number: 6353074
    Abstract: The present invention pertains to a method for manufacturing a hydrogen-silsesquioxane resin in which a solution of HSiCl3 in a halogenated hydrocarbon solvent which can dissolve the organic sulfonic acid described below and which does not react with sulfuric acid is added to a two-phase system comprising [a] an aqueous phase which contains sulfuric acid and an organic sulfonic acid which is not sulfonated by sulfuric acid and which is soluble in both water and the organic phase described below, and [b] an organic phase which contains the halogenated hydrocarbon solvent, and the resulting mixture is agitated. In this method, the ratio of the sulfuric acid relative to the combined weight of the water (including water of hydration in cases where the above sulfonic acid contains such water of hydration) and sulfuric acid is 80 to 96 wt %, and is present in the organic phase at the rate of 0.008 moles/L or greater.
    Type: Grant
    Filed: November 17, 1999
    Date of Patent: March 5, 2002
    Assignee: Dow Corning Corporation
    Inventors: Leslie Earl Carpenter, II, Tetsuyuki Michinio