Patents by Inventor Mitugi Tayama

Mitugi Tayama 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: 5572088
    Abstract: A cold-cathode fluorescent lamp includes an opposing pair of electrodes in spaced relationship in a tubular glass bulb of which the inner wall surface is coated with fluorescent material, and each of the electrodes is divided into four plate-like electrode members each having mercury and getter preliminarily coated thereon while maintaining a necessary area for each electrode without any contact with the inner wall surface of the tubular glass bulb. The opposite ends of the tubular glass bulb are airtightly sealed with beads through which electricity feeding wires extend for feeding electricity to the electrodes while holding the electrodes in the tubular glass bulb. Two of the four plate-like electrode members are located on one side of each electricity feeding wire, while another two of the same are located on the opposite side of the same. The respective plate-like electrode members are spot-welded to each electricity feeding wire.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: November 5, 1996
    Assignee: Stanley Electric Co., Ltd.
    Inventors: Masanobu Aizawa, Masatosi Chiba, Thuneyosi Sibasaki, Mitugi Tayama, Tomohiko Sakamoto, Masalu Ito