Patents by Inventor Ikuo Akune

Ikuo Akune 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: 4100317
    Abstract: A metal leaf comprising (1) a resinous layer having a thickness of 0.35 to 1.mu., (2) a deposition layer, made of a metal selected from the group consisting of gold, silver, aluminum and copper, having a thickness of 0.03 to 0.1.mu., and (3) a resinous layer having a thickness of 0.35 to 1.mu.; which being integrated in order of (1), (2) and (3) and having a thickness of 0.73 to 2.1.mu. and a tensile strength of 0.01 to 1.4 kg./mm.sup.2. It has the same characteristics as those of a conventional metal leaf by handicrafting, and is produced by providing the metal leaf on a base film, elongating the base film to peel out of the leaf and recovering.
    Type: Grant
    Filed: May 19, 1975
    Date of Patent: July 11, 1978
    Assignee: Oike & Co., Ltd.
    Inventors: Hiroshi Narui, Ikuo Akune, Yosiya Kobiki
  • Patent number: 3962397
    Abstract: A process for preparing a reflexible pigment consisting of a metal deposition layer and resinous coating layer on at least one side thereof and having a length and width of 0.1 to 500 .mu., a thickness of 0.1 to 4 .mu. and a true specific gravity of 1 to 2, which is characterized by providing on a base film a metal leaf consisting of a metal deposition layer and a resinous coating layer on at least one side thereof, peeling the metal leaf out of the base film by elongating the base film and crushing up the metal leaf. According to the process, a reflexible pigment in a dry state can be prepared with a remarkable simplicity and a high efficiency. The coating composition including the pigment prepared by the process has improved properties such as beautifulness, reflection property, application property, weather-proofing and abrasion resistance, and is useful for printing ink, writing ink or paint.
    Type: Grant
    Filed: November 6, 1974
    Date of Patent: June 8, 1976
    Assignee: Oike & Co., Ltd.
    Inventors: Hiroshi Narui, Ikuo Akune, Terumi Shinohara, Masao Numa, Yosiya Kobiki