Inventor · disambiguated record
Hisakatsu Yamaguchi
Also filed as: YAMAGUCHI HISAKATSU
28 granted patents·1 pending application·124 citations·filing 2002–2023
95Inventor score
Top patents by PatentIndex Score
29 records- 0187US7496781B2Timing signal generating circuit with a master circuit and slave circuitsFUJITSU LTD·Filed 2002·Granted Feb 24, 2009·34 cites·28 claims
- 0282US7863987B2Clock signal generating and distributing apparatusFUJITSU LTD·Filed 2006·Granted Jan 4, 2011·12 cites·1 claims
- 0381US7535956B2Adaptive equalizer circuitFUJITSU LTD·Filed 2005·Granted May 19, 2009·10 cites·13 claims
- 0479US8065553B2Phase interpolator for a timing signal generating circuitTAMURA HIROTAKA·Filed 2009·Granted Nov 22, 2011·8 cites·15 claims
- 0578US7973691B2Data recovery circuit, data recovery method and data receiving apparatusFUJITSU LTD·Filed 2009·Granted Jul 5, 2011·7 cites·15 claims
- 0676US10623172B2Control signal transmission and reception system and control signal transmission and reception methodFUJITSU LTD·Filed 2019·Granted Apr 14, 2020·2 cites·8 claims
- 0775US8588340B2Receiving deviceTOMITA YASUMOTO·Filed 2011·Granted Nov 19, 2013·6 cites·7 claims
- 0873US9154291B2Differential signal skew adjustment method and transmission circuitFUJITSU LTD·Filed 2013·Granted Oct 6, 2015·3 cites·13 claims
- 0968US8462905B2Receiver circuitYAMAGUCHI HISAKATSU·Filed 2012·Granted Jun 11, 2013·2 cites·8 claims
- 1067US8204153B2Clock recovery circuit and data receiving circuitYAMAGUCHI HISAKATSU·Filed 2009·Granted Jun 19, 2012·5 cites·27 claims
- 1167US7786785B2Peaking control circuitFUJITSU LTD·Filed 2008·Granted Aug 31, 2010·5 cites·11 claims
- 1267US7653169B2Timing adjustment for data transmitting/receiving circuitFUJITSU LTD·Filed 2006·Granted Jan 26, 2010·3 cites·18 claims
- 1363US7542506B2Data receiver and equalizer adapterFUJITSU LTD·Filed 2005·Granted Jun 2, 2009·2 cites·12 claims
- 1462US7936296B2AD converter, data receiver and data reception methodFUJITSU LTD·Filed 2009·Granted May 3, 2011·4 cites·13 claims
- 1562US7515656B2Clock recovery circuit and data receiving circuitFUJITSU LTD·Filed 2003·Granted Apr 7, 2009·10 cites·22 claims
- 1661US8270462B2Adaptive equalizer circuitYAMAGUCHI HISAKATSU·Filed 2009·Granted Sep 18, 2012·2 cites·10 claims
- 1760US9608640B1Receiving circuit and method for controlling frequencyFUJITSU LTD·Filed 2016·Granted Mar 28, 2017·1 cites·12 claims
- 1858US12244353B2Optical module switch deviceFUJITSU LTD·Filed 2023·Granted Mar 4, 2025·0 cites·10 claims
- 1958US7982638B2Data transmission circuit and data communication systemFUJITSU LTD·Filed 2009·Granted Jul 19, 2011·3 cites·8 claims
- 2058US7880543B2Data transmitting circuit and transmitting methodFUJITSU LTD·Filed 2009·Granted Feb 1, 2011·1 cites·7 claims
- 2154US8325864B2Receiver circuitYAMAGUCHI HISAKATSU·Filed 2009·Granted Dec 4, 2012·0 cites·5 claims
- 2254US7542532B2Data transmission device and input/output interface circuitFUJITSU LTD·Filed 2004·Granted Jun 2, 2009·3 cites·6 claims
- 2353US8638843B2Receiving device and receiving methodYAMAGUCHI HISAKATSU·Filed 2011·Granted Jan 28, 2014·1 cites·12 claims
- 2448US10778382B2Parameter setting transmission and reception system and parameter setting methodFUJITSU LTD·Filed 2019·Granted Sep 15, 2020·0 cites·5 claims
- 2548US9088405B2Clock phase interpolator, data transmission and reception circuit, and method of clock phase interpolationFUJITSU LTD·Filed 2014·Granted Jul 21, 2015·0 cites·8 claims
- 2646US7397293B2Clock distribution circuitFUJITSU LTD·Filed 2006·Granted Jul 8, 2008·0 cites·12 claims
- 2744US10718811B2Jitter measurement circuit and jitter measurement systemFUJITSU LTD·Filed 2018·Granted Jul 21, 2020·0 cites·8 claims
- 2843US2006047494A1Circuit analysis method and circuit analysis apparatusFUJITSU LTD·Filed 2005·Application pending·0 cites
- 2941US7863948B2Clock frequency dividing circuitFUJITSU LTD·Filed 2008·Granted Jan 4, 2011·0 cites·6 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →