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KDDI SUBMARINE CABLE SYS INC

Overview
  • Total Patents
    91
About

KDDI SUBMARINE CABLE SYS INC has a total of 91 patent applications. Its first patent ever was published in 2000. It filed its patents most often in Japan, EPO (European Patent Office) and United States. Its main competitors in its focus markets telecommunications, optics and audio-visual technology are GCI INC, CELIGHT INC and STC SUBMARINE SYSTEMS LTD.

Patent filings in countries

World map showing KDDI SUBMARINE CABLE SYS INCs patent filings in countries
# Country Total Patents
#1 Japan 66
#2 EPO (European Patent Office) 14
#3 United States 8
#4 Canada 3

Patent filings per year

Chart showing KDDI SUBMARINE CABLE SYS INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Taga Hidenori 34
#2 Goto Koji 25
#3 Suzuki Masatoshi 19
#4 Edakawa Noboru 17
#5 Shibano Eiichi 16
#6 Usami Masashi 16
#7 Tsuritani Takehiro 10
#8 Morita Itsuro 10
#9 Takahashi Hidenori 9
#10 Nishimura Kousuke 8

Latest patents

Publication Filing date Title
JP2005326525A Optical fiber alignment fixture
US2005226622A1 Underwater repeater employing rare earth element doped fiber amplifier, Raman assist and optical pump source sparing
JP2005223803A Method and apparatus for monitoring raman amplification optical transmission line
JP2005181563A Optical pulse generation method and apparatus, and optical transmission method and system
JP2005115133A Method for repairing submarine optical cable and cable determination method for repair
JP2005117474A Optical transmitter, pre-emphasis method of wdm signal light
JP2005117240A Signal light generating method and optical transmitter
JP2005073088A Dmf cable repair method
JP2005070522A Compound optical amplifier
JP2005051596A Optical transmission method and optical transmitter
JP2005051598A Method of upgrading optical transmission system, and optical transmitter
JP2005020151A Method of upgrading optical transmission system, optical transmitting equipment and optical receiving equipment for upgrading
JP2005011989A Optical amplifier
JP2005003893A Irregular-shaped line excellently preventing water infiltration for optical fiber submarine cable
JP2004289751A Optical transmission apparatus and method
JP2004260461A Optical receiver and reception method
JP2003338805A Optical transmission system, optical transmitter and methods thereof
JP2004219953A Method and device for anchoring optical fiber
JP2004104385A Optical transmission system, optical transmission apparatus, and method for them
JP2004104386A Optical signal processing apparatus, optical receiver, and method for apparatus and receiving