Patents by Inventor Hiroyoshi Kitano

Hiroyoshi Kitano 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).

  • Short arc type discharge lamp
    Patent number: 8350476
    Abstract: A short arc type discharge lamp comprises a pair of electrodes, at least one of which has an electrode main body portion and an axis portion and/or a taper portion formed between the electrode main body portion and the axis portion, wherein in the at least one of the electrodes, the axis portion has an outer diameter smaller than that of the electrode main body portion, and at least one groove extending in an axis line direction of the electrode is formed in the electrode main body portion, the axis portion or the taper portion.
    Type: Grant
    Filed: September 24, 2009
    Date of Patent: January 8, 2013
    Assignee: Ushio Denki Kabushiki Kaisha
    Inventors: Hirohisa Ishikawa, Hiroyoshi Kitano, Nobuhiro Nagamachi, Toyohiko Kumada, Takashi Yamashita, Michiko Morooka
  • SHORT ARC TYPE DISCHARGE LAMP
    Publication number: 20100079048
    Abstract: A short arc type discharge lamp comprises a pair of electrodes, at least one of which has an electrode main body portion and an axis portion and/or a taper portion formed between the electrode main body portion and the axis portion, wherein in the at least one of the electrodes, the axis portion has an outer diameter smaller than that of the electrode main body portion, and at least one groove extending in an axis line direction of the electrode is formed in the electrode main body portion, the axis portion or the taper portion.
    Type: Application
    Filed: September 24, 2009
    Publication date: April 1, 2010
    Applicant: USHIO DENKI KABUSHIKI KAISHA
    Inventors: Hirohisa ISHIKAWA, Hiroyoshi KITANO, Nobuhiro NAGAMACHI, Toyohiko KUMADA, Takashi YAMASHITA, Michiko MOROOKA
  • Discharge lamp with foil-stiffening crease
    Patent number: 6590341
    Abstract: A discharge lamp having a pair of electrodes (2) within a light-emitting tube (30) with air-tight seals (31) formed covering a metallic foil (1) is bonded to each electrode (2). To stiffen the metallic foil, it is provided with a length-wise crease (M).
    Type: Grant
    Filed: July 5, 2000
    Date of Patent: July 8, 2003
    Assignee: Ushiodenki Kabushiki Kaisha
    Inventors: Hiroyoshi Kitano, Takahiro Mizuno, Kengo Sato