Patents by Inventor Jiro Oka

Jiro Oka 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).

  • Electric shock insect repeller
    Patent number: 4869015
    Abstract: The present invention relates to an electric shock insecticide apparatus wherein, on a wall plane (1a) on a periphery of an opening (3) of a storing space (2), at least a pair of electrodes (5a), (5b) to which a voltage is to be applied are disposed, keeping an insulation space (W), and between said storing space (2) and said electrodes (5b), an obstructer which is projected from a plane of said electrodes is provided, and is to certainly prevent the invasion of cockroaches trying to invade the storing space by giving electric shock to the cockroaches.
    Type: Grant
    Filed: June 22, 1987
    Date of Patent: September 26, 1989
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Ryohei Murakami, Jiro Oka