Patents by Inventor Hayami Ohnishi

Hayami Ohnishi 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: 5354595
    Abstract: A surface-roughened film and methods for fabricating same. The film has good transparency/exceptional clarity and high lubricity so that it is useful for a photoengraving material, label, packaging film, magnetic recording film, or clear film. The film has a composition including thermoplastic polyester resin (a) and a thermoplastic resin (b), such as an amorphous nylon, having glass transition temperature preferably 10.degree. C. higher than that of the thermoplastic polyester resin (a) and a critical surface tension more than 0.1 dyne/cm different from that of the thermoplastic polyester resin (a). Resin (b) further has a melt viscosity, at a temperature of 280.degree. C. and shear rate of 10.sup.2 sec.sup.-1, in the range of 500 to 50,000 poise. One or more particulate inert inorganic compound may be added and the film may be laminated to layers of other polymers with the film of the foregoing composition on at least one surface thereof.
    Type: Grant
    Filed: June 25, 1992
    Date of Patent: October 11, 1994
    Assignee: Unitika, Ltd.
    Inventors: Eiji Yamamoto, Tsuneo Tamura, Katsuyuki Touma, Minoru Kishida, Yoshiaki Kozuka, Hiroyuki Matsuda, Hayami Ohnishi, Akira Menjyu, Shouji Nishimoto