Patents by Inventor Yuji Aramaki

Yuji Aramaki 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).

  • Composite fibers of potassium hexatitanate and titanium dioxide
    Patent number: 5383963
    Abstract: A platelike polycrystalline fiber having a composite phase which consists of potassium hexatitanate crystals and titanium dioxide crystals mixed therewith is prepared by heating a mixture of titanium compound and potassium compound to obtain a melt, cooling the melt to obtain a lump of fibers, treating the lump of fibers in an aqueous acid solution to control the potassium content of the fibers to 1 to 13.5 weight %, and heat-treating the resulting fibers at 900.degree. to 1300.degree. C.The composite fiber is suitable as fibers to be included in friction materials for slide members of automobiles and like brake devices.
    Type: Grant
    Filed: May 23, 1994
    Date of Patent: January 24, 1995
    Assignee: Kubota Corporation
    Inventors: Isamu Kobayashi, Yuji Aramaki