Patents by Inventor Matsuo Akao

Matsuo Akao 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).

  • Packing bag for light-sensitive material
    Patent number: 4147291
    Abstract: A packing bag, particularly suitable for use for light-sensitive materials, composed of a composite laminate which comprises a cross laminate film of two uniaxially stretched high density polyethylene films wherein the stretching directions of the two films cross each other at an angle of about 45.degree. to about 90.degree. C. and a low density polyethylene film containing a light-intercepting agent and an antistatic agent, wherein the bag is so constructed that the low density polyethylene film surface of the laminate film is the interior surface of the packing bag.
    Type: Grant
    Filed: April 7, 1977
    Date of Patent: April 3, 1979
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Matsuo Akao, Taichi Kurechi