Patents by Inventor Isao Mako

Isao Mako 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).

  • Method of packaging perishable foods and product thereof
    Patent number: 3994115
    Abstract: Plural recesses are formed on the surface of a sheet of a chemically crosslinked foam of a polyolefinic resin containing an inorganic calcium compound, the articles of food to be packaged are placed in the recesses and then the sheet is covered with a physically foamed sheet of a polyolefinic resin containing an inorganic calcium compound. Alternatively, the physically foamed sheet can be shaped to define a recessed support for the food articles and a sheet of foamed polyolefinic resin used as the covering. The polyolefinic resin has 30-60% by weight of an inorganic calcium compound incorporated therein.
    Type: Grant
    Filed: March 7, 1975
    Date of Patent: November 30, 1976
    Assignee: Idemitsu, Kosan Kabushiki-Kaisha (Idemitsu Kosan Co., Ltd.)
    Inventors: Isao Mako, Hiroyuki Ishitobi, Masami Tomikawa