Patents by Inventor Mitoshi Kawano

Mitoshi Kawano 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).

  • Moldable pulp material and method of manufacturing molded pulp product
    Patent number: 5785817
    Abstract: A moldable pulp material, which contains a main constituent of pulp comprising strips of paper having a size of millimeters and a fibrous component defibrated from waste paper, a starch binder in which a portion of the hydroxyl group in molecules of starch is modified, and thermally expandable hollow particles, is mixed with water which is effective to gelatinize the starch binder. The moldable pulp material is filled in a mold assembly and compressed in the mold assembly. The compressed moldable pulp material is then heated to at least a gelatinization temperature at which the starch binder is gelatinized, for thereby gelatinizing the starch binder to produce a molded pulp product for use as a shock absorbing material.
    Type: Grant
    Filed: July 2, 1996
    Date of Patent: July 28, 1998
    Assignees: Sony Corporation, Rengo Co., Ltd.
    Inventors: Masaru Tan, Tsutomu Noguchi, Mitoshi Kawano, Kazutoshi Mahama, Hiromu Ikeda, Sunao Suzuki