Inventor · disambiguated record
Takashi Ishiwada
Also filed as: ISHIWADA TAKASHI
3 granted patents·12 citations·filing 2002–2005
64Inventor score
Files withFUJITSU LTD3
Top patents by PatentIndex Score
3 records- 0175US7209284B2Optical amplifier using reflection-type variable optical attenuator for feedbackFUJITSU LTD·Filed 2005·Granted Apr 24, 2007·5 cites·5 claims
- 0254US7016096B2Transmission wavelength characteristics variable optical element, and wavelength characteristics variable apparatus, optical amplifier, and optical transmission system, using sameFUJITSU LTD·Filed 2003·Granted Mar 21, 2006·4 cites·26 claims
- 0350US6862126B2Transmission wavelength characteristics variable optical element, and wavelength characteristics variable apparatus, optical amplifier, optical transmission system, and control method of transmission wavelength characteristics, using sameFUJITSU LTD·Filed 2002·Granted Mar 1, 2005·3 cites·40 claims
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