Patents by Inventor Nagayoshi Jumonji

Nagayoshi Jumonji 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).

  • Rubber element for tire and method of manufacturing the same
    Patent number: 6089294
    Abstract: A rubber element for tire comprising a bead core which is generally an annular shape, and an apex which is generally an annular shape and attached to the bead core. The apex comprises a first portion whose sectional configuration is generally a rectangle, and a second portion whose sectional configuration is generally a semiellipse and integrally molded on an outer face of the first portion. An inner face of the first portion of the apex is attached to an outer face of the bead core, whereby the apex and the bead core are united.
    Type: Grant
    Filed: May 26, 1998
    Date of Patent: July 18, 2000
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Kazuya Suzuki, Nagayoshi Jumonji