| Title of Invention | OPTICAL FIBERS |
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| Abstract | Fiber optics applicable to optical communication in not only 1.3 μm wavelength band but 1.55 μm wavelength band as a transmission medium in a WDM optical communication system capable of transmitting a multi-channel signal light to enable a signal transmission in a broader band. The fiber optics mainly consist of quartz glass and are provided with a core area along a specified axis and a clad area surrounding the core area. The fiber optics with such a structure have, as typical optical characteristics, a cable cutoff wavelength of up to 1260 nm, a transmission loss of up to 0.32 dB/km at a wavelength of 1310 nm, and an OH group-caused loss increase amount of up to 0.3 dB/km at a wavelength of 1380 nm. |
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750-CHENP-2006 AMENDED CLAIMS 09-05-2011.pdf
750-chenp-2006 amended claims 19-07-2011.pdf
750-chenp-2006 form-3 09-05-2011.pdf
750-CHENP-2006 CORRESPONDENCE OTHERS 19-07-2011.pdf
750-CHENP-2006 EXAMINATION REPORT REPLY RECIEVED 09-05-2011.pdf
750-chenp-2006 form-3 19-07-2011.pdf
750-chenp-2006 other patent document 19-07-2011.pdf
750-CHENP-2006 POWER OF ATTORNEY 09-05-2011.pdf
750-CHENP-2006 CORRESPONDENCE OTHERS 09-11-2010.pdf
750-chenp-2006-correspondence-others.pdf
750-chenp-2006-description(complete).pdf
| Patent Number | 248536 | ||||||||||||
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| Indian Patent Application Number | 750/CHENP/2006 | ||||||||||||
| PG Journal Number | 30/2011 | ||||||||||||
| Publication Date | 29-Jul-2011 | ||||||||||||
| Grant Date | 22-Jul-2011 | ||||||||||||
| Date of Filing | 02-Mar-2006 | ||||||||||||
| Name of Patentee | SUMITOMO ELECTRIC INDUSTRIES, LTD | ||||||||||||
| Applicant Address | 5-33, KTAHAMA 4-CHOME, CHUO-KU, OSAKA-SHI, OSAKA 541-0041 | ||||||||||||
Inventors:
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| PCT International Classification Number | G02B 6/26 | ||||||||||||
| PCT International Application Number | PCT/JP04/11166 | ||||||||||||
| PCT International Filing date | 2004-08-04 | ||||||||||||
PCT Conventions:
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