Patents by Inventor Yumiko Ubukata

Yumiko Ubukata 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).

  • Catalyst for hydrogenation, dehydrosilylation or hydrosilylation and use thereof
    Patent number: 5182246
    Abstract: A catalyst for hydrogenation, dehydrosilylation of ketones, or hydrosililation of dienes or acetylenes, comprising a complex represented the the formula:A.sup.+ [M.sub.2 H(C)).sub.10 ].sup.-wherein A.sup.+ represents an alkali metal cation, an ammonium cation, an iminium cation, or a phosphonium cation; and M represents a chromium atom, a molybdenum atom, or a tungsten atom; anda process for producing dehydrosilylation products of ketones or hydrosilylation products of dienes or acetylenes, which is characterized by using the complex as a catalyst.
    Type: Grant
    Filed: August 23, 1991
    Date of Patent: January 26, 1993
    Assignee: Sagami Chemical Research Center
    Inventors: Takamasa Fuchikami, Yumiko Ubukata, Yasutaka Tanaka