Patents Assigned to Non Oxide Glass Research and Development Co., Ltd.
  • Process for producing chalcogenide glass fiber
    Patent number: 4908053
    Abstract: A process for producing a chalcogenide glass fiber which comprises placing a cylindrical chalcogenide glass preform vertically in a cylindrical crucible furnished with a nozzle in its bottom portion, heating the crucible only at vicinity of the nozzle, and continuously drawing the glass into a fiber with the temperature of the crucible at the vicinity of the nozzle being maintained at such a level that the viscosity of the glass is within the range of 10.sup.3 to 10.sup.7.5 poises.
    Type: Grant
    Filed: August 17, 1988
    Date of Patent: March 13, 1990
    Assignee: Non Oxide Glass Research and Development Co., Ltd.
    Inventors: Junji Nishii, Ikuo Inagawa, Takashi Yamagishi, Shozo Morimoto, Ryuji Iizuka