Optical waveguides – Optical fiber waveguide with cladding
Reexamination Certificate
2008-05-27
2008-05-27
Pak, Sung H (Department: 2874)
Optical waveguides
Optical fiber waveguide with cladding
C356S073100
Reexamination Certificate
active
07379646
ABSTRACT:
The present invention relates to an optical fiber product suitable for fabricating an optical cable that requires a complicated length adjustment. The optical fiber product includes an effective use portion used as the optical cable, surplus portions connected to both ends of the effective use portion, and a distinguishing structure clearly indicating boundary portions between the effective use portion and the surplus portions. With the above structure, the surplus portions that become finally unnecessary are surely cut off in a fabrication step of the optical cable, thus enabling collect use of only effective use portion as the optical cable.
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patent: 5894537 (1999-04-01), Berkey et al.
patent: 6421484 (2002-07-01), Tanaka et al.
patent: 6473548 (2002-10-01), Nagayama et al.
patent: 7153034 (2006-12-01), Sasaoka et al.
International Telecommunication Union G. 650 “Series G: Transmission Systems and Media, Digital Systems and Networks” (Oct. 2000).
Koyano Yasushi
Naganuma Yasuhiro
Yamamoto Hiroyoshi
McDermott Will & Emery LLP
Pak Sung H
Sumitomo Electric Industries Ltd.
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