Patents by Inventor Seidou Tani

Seidou Tani 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).

  • Arc tube and low-pressure mercury lamp that can be reduced in size
    Patent number: 7332866
    Abstract: An arc tube includes an arc tube body and a pair of electrodes. The arc tube body is formed from a glass tube which is double-spirally wound from a middle portion to both ends around a spiral axis. The pair of electrodes are sealed at both ends of the arc tube body. Mercury is enclosed in the arc tube substantially in a single form. Each of the electrodes includes a multiple-coiled filament which is wound substantially one turn in a last coiling stage.
    Type: Grant
    Filed: May 27, 2004
    Date of Patent: February 19, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Akiko Nakanishi, Kohhei Iwase, Kenji Nakano, Kenji Itaya, Seidou Tani, Noriyuki Uchida
  • Arc tube and low-pressure mercury lamp that can be reduced in size
    Publication number: 20040263079
    Abstract: An arc tube includes an arc tube body and a pair of electrodes. The arc tube body is formed from a glass tube which is double-spirally wound from a middle portion to both ends around a spiral axis. The pair of electrodes are sealed at both ends of the arc tube body. Mercury is enclosed in the arc tube substantially in a single form. Each of the electrodes includes a multiple-coiled filament which is wound substantially one turn in a last coiling stage.
    Type: Application
    Filed: May 27, 2004
    Publication date: December 30, 2004
    Inventors: Akiko Nakanishi, Kohhei Iwase, Kenji Nakano, Kenji Itaya, Seidou Tani, Noriyuki Uchida