Patents by Inventor Ryousuke Matsuzaki

Ryousuke Matsuzaki 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).

  • METHOD FOR MANUFACTURING AN EXTERNAL ELECTRODE FLUORESCENT LAMP
    Publication number: 20110171872
    Abstract: An external electrode fluorescent lamp includes a glass tube made of soft glass, and external electrodes affixed to outer surfaces of both ends of the glass tube. The fluorescent lamp further includes a joining material applied between at least the glass tube and the external electrodes for affixing the external electrodes, which are made up of a material having a thermal expansion coefficient that is larger than that of the glass tube. According to the manufacturing method of the fluorescent lamp, first, the external electrodes are attached to the outer surface of each end of the glass tube, the external electrodes are then immersed in fused solder, and finally, the glass tube is cooled to room temperature. In this manner, the external electrodes are affixed to the outer surface of the glass tube via soldering.
    Type: Application
    Filed: March 21, 2011
    Publication date: July 14, 2011
    Applicant: NEC LIGHTING, LTD
    Inventors: Ryousuke MATSUZAKI, Seiichirou FUJIOKA, Shin TANAKA
  • External electrode fluorescent lamp and manufacturing method of the same
    Patent number: 7956542
    Abstract: An external electrode fluorescent lamp includes a glass tube made of soft glass, and external electrodes affixed to outer surfaces of both ends of the glass tube. The fluorescent lamp further includes a joining material applied between at least the glass tube and the external electrodes for affixing the external electrodes, which are made up of a material having a thermal expansion coefficient that is larger than that of the glass tube. According to the manufacturing method of the fluorescent lamp, first, the external electrodes are attached to the outer surface of each end of the glass tube, the external electrodes are then immersed in fused solder, and finally, the glass tube is cooled to room temperature. In this manner, the external electrodes are affixed to the outer surface of the glass tube via soldering.
    Type: Grant
    Filed: April 14, 2009
    Date of Patent: June 7, 2011
    Assignee: NEC Lighting, Ltd.
    Inventors: Ryousuke Matsuzaki, Seiichirou Fujioka, Shin Tanaka
  • EXTERNAL ELECTRODE FLUORESCENT LAMP AND MANUFACTURING METHOD OF THE SAME
    Publication number: 20090267478
    Abstract: An external electrode fluorescent lamp includes a glass tube made of soft glass, and external electrodes affixed to outer surfaces of both ends of the glass tube. The fluorescent lamp further includes a joining material applied between at least the glass tube and the external electrodes for affixing the external electrodes, which are made up of a material having a thermal expansion coefficient that is larger than that of the glass tube. According to the manufacturing method of the fluorescent lamp, first, the external electrodes are attached to the outer surface of each end of the glass tube, the external electrodes are then immersed in fused solder, and finally, the glass tube is cooled to room temperature. In this manner, the external electrodes are affixed to the outer surface of the glass tube via soldering.
    Type: Application
    Filed: April 14, 2009
    Publication date: October 29, 2009
    Applicant: NEC LIGHTING, LTD.
    Inventors: Ryousuke MATSUZAKI, Seiichirou FUJIOKA, Shin TANAKA