Patents by Inventor by Yukiko Nawashiro, heir

by Yukiko Nawashiro, heir 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: 4278567
    Abstract: A process for the preparation of copper-iron-aluminum hydrogenation catalysts comprises the step of: dissolving a cupric salt, a ferrous salt and an aluminum salt in water dissolving urea in the resulting aqueous solution in such an amount that the mole number of urea is at least 0.7 time as large as the sum of equivalents of the metal ions, heating the mixed aqueous solution, further continuing the heating until a pH of the liquid is 4.6 to 7.5, adding an alkali to the reaction liquid to elevate a pH to 9.5 to 11.5, further conducting the reaction and then separating, water-washing, drying and calcining the formed precipitate.
    Type: Grant
    Filed: March 10, 1980
    Date of Patent: July 14, 1981
    Assignee: Kao Soap Co., Ltd.
    Inventors: Bunji Miya, deceased, by Fumiaki Miya, heir, by Yukiko Nawashiro, heir