Patents Assigned to Kondo Sylvania Kabushiki Kaisha
  • Incandescent lamp
    Patent number: 4254358
    Abstract: An incandescent lamp includes a bulb formed of a light-transmissible material, a stem portion for supporting lead-in wires having a filament, and a connector positioned between the bulb and the stem portion to connect them in a hermetically sealed fashion at opposite ends thereof. Since the stem portion is preformed after which the stem is connected integral with the bulb by the connector, it is possible to position the filament as a light source with high accuracy.
    Type: Grant
    Filed: July 3, 1979
    Date of Patent: March 3, 1981
    Assignee: Kondo Sylvania Kabushiki Kaisha
    Inventor: Sozo Saito
  • Incandescent lamp
    Patent number: 4145631
    Abstract: An improved incandescent lamp includes a bulb, a stem, a metal ring body, a filament and lead wires penetrating the stem. The metal ring body is air-tightly welded to the stem and the bulb respectively with the use of oxidation layers on the inner and outer surface thereof to thereby provide hermetic seals therebetween.
    Type: Grant
    Filed: June 22, 1977
    Date of Patent: March 20, 1979
    Assignee: Kondo Sylvania Kabushiki Kaisha
    Inventor: Sozo Saito