KDDI Submarine Cable Systems Inc.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H04B TRANSMISSION 2208
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 1205
 
  
 
H01S DEVICES USING STIMULATED EMISSION191
 
  
 
H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY 1119
 
  
 
H04J MULTIPLEX COMMUNICATION 1124

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7236703 Optical wavelength division multiplexing deviceJul 31, 00Jun 26, 07[H04J]
7130544 Optical repeating system and optical amplifying repeater control methodJul 11, 02Oct 31, 06[H04B]
6914718 Optical repeating system and optical amplifying repeater control methodJul 11, 02Jul 05, 05[H04B, H01S]
6563236 Feed line switching circuit and branching unitJul 16, 02May 13, 03[H02J]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7158728 Optical repeating system and optical amplifying repeater control methodExpiredJul 10, 02Jan 02, 07[H04B]
7009693 Gain profile measuring method and system and gain profile controlling method and systemExpiredJun 06, 03Mar 07, 06[G01N]
2004/0213,569 Transmission capacity expanding method and optical transmission terminalAbandonedDec 31, 02Oct 28, 04[H04J]
2004/0141,708 Optical fiber retaining method and apparatus thereofAbandonedSep 17, 03Jul 22, 04[G02B]
6754420 Optical fiber transmission lineExpiredJan 25, 02Jun 22, 04[H04B, G02B, H04J]
6731836 Dispersion compensatorExpiredDec 26, 01May 04, 04[G02B]
2004/0052,532 Optical transmission system and optical transmitter and methods thereofAbandonedAug 29, 03Mar 18, 04[H04B]
2004/0032,642 Method and system for monitoring distributed raman optical transmission lineAbandonedAug 14, 03Feb 19, 04[H01S]
2003/0175,033 Optical transmission system, optical transmitter and methods thereofAbandonedMar 03, 03Sep 18, 03[H04B]
6584255 Method for manufacturing optical fiber cable with optical fibers whose chromatic dispersion value are uniformedExpiredApr 16, 02Jun 24, 03[G02B]
2002/0191,262 Optical transmitter and optical modulatorAbandonedJun 12, 02Dec 19, 02[H04B]
2002/0131,711 Dispersion compensating optical transmission line and optical transmission systemAbandonedMar 18, 02Sep 19, 02[G02B]

Top Inventors for This Owner

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