Nippon Telegraph

Patent Owner

Watch Compare Add to Portfolio

Stats

Details

Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G02B OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS 1204
 
  
 
G10L SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION 196
 
  
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 1361
 
  
 
H01Q AERIALS 1109

Top Patents (by citation)

Upgrade to the Professional Level to View Top Patents for this Owner. Learn More

Recent Publications

  • No Recent Publications to Display

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6021246 Closure for cable connectionMay 27, 98Feb 01, 00[G02B]
5658809 SOI substrate and method of producing the sameMar 13, 95Aug 19, 97[H01L]
5434579 Inverted F antenna with non-contact feedingNov 23, 92Jul 18, 95[H01Q]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7657435 Acoustic signal transmission method and apparatus with insertion signalExpiredAug 08, 05Feb 02, 10[G10L, G01C]
5408530 Echo cancelling method and echo canceller using the sameExpiredSep 28, 93Apr 18, 95[H04M]
4999955 Method and apparatus for conically machining optical fiber connectorsExpiredJan 17, 89Mar 19, 91[B24B]
4962526 Image data transmission apparatusExpiredMar 15, 89Oct 09, 90[H04M, H04N]
4720529 UV-ray curable polyurethane composition and coated optical fiberExpiredMar 26, 86Jan 19, 88[C08G, C08F]

Top Inventors for This Owner

Upgrade to the Professional Level to View Top Inventors for this Owner. Learn More

We are sorry but your current selection exceeds the maximum number of comparisons () for this membership level. Upgrade to our Level for up to -1 comparisons!

We are sorry but your current selection exceeds the maximum number of portfolios (0) for this membership level. Upgrade to our Level for up to -1 portfolios!.