Patents by Inventor Shohji Mori

Shohji Mori 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: 4256687
    Abstract: A process for producing molded articles, such as cups, which comprises passing a crystalline polyolefin resin melt in sheet form through between rolls having a specified surface roughness and temperature while simultaneously contacting both faces of the resin melt with the rolls respectively, followed by still contacting at least one of the faces with the roll or other similar rolls to solidify the resin melt thereby obtaining a sheet having a specified surface roughness on each face, further passing the sheet through between at least one pair of rolls rotating in the direction opposite to each other and having therebetween a gap smaller than the thickness of the sheet while maintaining the sheet at lower than the crystalline melting point thereof thereby to obtain a rolled sheet and then molding the rolled sheet under pressure while maintaining the rolled sheet at specifically lower than the crystalline melting point thereof thereby to obtain the molded articles.
    Type: Grant
    Filed: November 7, 1978
    Date of Patent: March 17, 1981
    Assignee: Nippon Petrochemicals Co., Ltd.
    Inventors: Katsuya Yazaki, Takashi Inoue, Shohji Mori