Inventor · disambiguated record
Hisaya Sakamoto
Also filed as: SAKAMOTO HISAYA
9 granted patents·2 pending applications·339 citations·filing 1994–2009
90Inventor score
Files withFUJITSU LTD11
Top patents by PatentIndex Score
11 records- 0192US6643472B1APD bias circuitFUJITSU LTD·Filed 2000·Granted Nov 4, 2003·87 cites·24 claims
- 0290US6694273B2Receiving apparatus, method of compensating for waveform degradation of received signal, apparatus and method for detecting waveform degradation, and apparatus and method for measuring waveformFUJITSU LTD·Filed 2001·Granted Feb 17, 2004·64 cites·76 claims
- 0386US6707024B2Bias circuit for a photodetector, and an optical receiverFUJITSU LTD·Filed 2001·Granted Mar 16, 2004·42 cites·6 claims
- 0483US6188738B1Clock extraction circuitFUJITSU LTD·Filed 1998·Granted Feb 13, 2001·77 cites·7 claims
- 0574US7769304B2Signal light processing apparatusFUJITSU LTD·Filed 2006·Granted Aug 3, 2010·8 cites·16 claims
- 0673US5736875ADiscrimination circuit capable of automatically optimizing discrimination level and discrimination phaseFUJITSU LTD·Filed 1996·Granted Apr 7, 1998·28 cites·23 claims
- 0767US5625181ALight-receipt system with current bias circuit and pre-amplifier for use in optical digital communicationFUJITSU LTD·Filed 1994·Granted Apr 29, 1997·25 cites·22 claims
- 0851US7245837B2Optical transmitting deviceFUJITSU LTD·Filed 2003·Granted Jul 17, 2007·4 cites·13 claims
- 0943US2008037997A1Optical sending apparatus and optical transmission systemFUJITSU LTD·Filed 2007·Application pending·0 cites
- 1041US2010046963A1Optical regenerating apparatus and optical regenerating methodFUJITSU LTD·Filed 2009·Application pending·0 cites
- 1136US6065129AClock signal detection circuitFUJITSU LTD·Filed 1998·Granted May 16, 2000·4 cites·13 claims
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