Patents by Inventor Yoichi Ohtsu

Yoichi Ohtsu 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).

  • Process for production of a plastic bottle
    Patent number: 4550007
    Abstract: A plastic bottle made of biaxially oriented polyethylene terephthalate comprises a narrow neck portion, a downwardly and outwardly flared shoulder portion continuous from the neck portion, a generally cylindrical body portion and a bottom portion, wherein said portions except for the neck portion have a density of at least 1.375, and the internal volume increase rate is less than 5% when the bottle filled with a liquid at 20.degree. C. containing a 2 gas volume of carbon dioxide gas is immersed in warm water at 75.degree. C. for 30 minutes.
    Type: Grant
    Filed: March 22, 1984
    Date of Patent: October 29, 1985
    Assignee: Mitsubishi Plastics Industries Limited
    Inventors: Yoichi Ohtsu, Kohei Kanno, Hiroshi Nagano