Inventor · disambiguated record
Isao Tsuyama
Also filed as: TSUYAMA ISAO
10 granted patents·9 pending applications·237 citations·filing 1998–2010
90Inventor score
Top patents by PatentIndex Score
19 records- 0192US6404940B1Optical cross connect apparatus and optical networkFUJITSU LTD·Filed 2000·Granted Jun 11, 2002·58 cites·33 claims
- 0289US6522803B1Optical cross-connect equipmentFUJITSU LTD·Filed 2000·Granted Feb 18, 2003·42 cites·20 claims
- 0377US6154583AOptical switchFUJITSU LTD·Filed 1998·Granted Nov 28, 2000·53 cites·29 claims
- 0472US6433900B1Optical wavelength multiplexing system having a redundant configurationFUJITSU LTD·Filed 1999·Granted Aug 13, 2002·37 cites·23 claims
- 0571US7203392B2Optical apparatus for bidirectional optical communicationFUJITSU LTD·Filed 2004·Granted Apr 10, 2007·10 cites·8 claims
- 0662US6895141B2Control method and device for optical filter, and optical node deviceFUJITSU LTD·Filed 2002·Granted May 17, 2005·6 cites·21 claims
- 0762US6496289B1Optical exchangerFUJITSU LTD·Filed 1998·Granted Dec 17, 2002·22 cites·8 claims
- 0860US7599140B2Output control device and recording-medium-driver control deviceFUJITSU LTD·Filed 2006·Granted Oct 6, 2009·4 cites·12 claims
- 0956US6947630B2Control method and control apparatus for variable wavelength optical filterFUJITSU LTD·Filed 2002·Granted Sep 20, 2005·5 cites·22 claims
- 1053US2010164554A1Filter circuit, continuous time filter, and signal reproducing apparatusTOSHIBA STORAGE DEVICE CORP·Filed 2009·Application pending·0 cites
- 1152US2009108926A1Filter circuitFUJITSU LTD·Filed 2008·Application pending·0 cites
- 1252US2009257145A1Control circuit and information storage deviceFUJITSU LTD·Filed 2009·Application pending·0 cites
- 1352US2009296256A1Thermal-assist magnetic recording device and thermal-assist magnetic storage deviceFUJITSU LTD·Filed 2009·Application pending·0 cites
- 1445US2003063347A1Optical exchangerFUJITSU LTD·Filed 2002·Application pending·0 cites
- 1540US2002015551A1Optical switch network, optical cross connecting device, and optical add/drop multiplexerFiled 2001·Application pending·0 cites
- 1639US2009309649A1Active band-pass filter and magnetic storage deviceFUJITSU LTD·Filed 2009·Application pending·0 cites
- 1737US7120321B2Control method and device for optical filterFUJITSU LTD·Filed 2002·Granted Oct 10, 2006·0 cites·17 claims
- 1836US2010091623A1Frequency characteristic adjusting circuit, receiving interface circuit, and magnetic storage deviceFUJITSU LTD·Filed 2009·Application pending·0 cites
- 1935US2010195473A1Signal transmission circuit and storage deviceTOSHIBA STORAGE DEVICE CORP·Filed 2010·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →