Inventor · disambiguated record
Hisao Shigematsu
Also filed as: SHIGEMATSU HISAO
9 granted patents·2 pending applications·138 citations·filing 1998–2018
88Inventor score
Files withFUJITSU LTD11
Top patents by PatentIndex Score
11 records- 0186US6864750B2Cascode distributed amplifierFUJITSU LTD·Filed 2002·Granted Mar 8, 2005·44 cites·15 claims
- 0278US6472941B2Distributed amplifier with terminating circuit capable of improving gain flatness at low frequenciesFUJITSU LTD·Filed 2001·Granted Oct 29, 2002·26 cites·16 claims
- 0376US7782140B2Analog circuitFUJITSU LTD·Filed 2008·Granted Aug 24, 2010·9 cites·16 claims
- 0474US7804357B2Distributed amplifierFUJITSU LTD·Filed 2005·Granted Sep 28, 2010·9 cites·16 claims
- 0570US6399971B1Semiconductor device and method for fabricating the sameFUJITSU LTD·Filed 1998·Granted Jun 4, 2002·23 cites·8 claims
- 0668US6930557B2Multi-stage amplifierFUJITSU LTD·Filed 2003·Granted Aug 16, 2005·16 cites·13 claims
- 0766US7323947B2Oscillator circuitFUJITSU LTD·Filed 2004·Granted Jan 29, 2008·9 cites·25 claims
- 0852US7928815B2AmplifierFUJITSU LTD·Filed 2008·Granted Apr 19, 2011·2 cites·12 claims
- 0950US10651305B2Compound semiconductor device with quantum well structure, power supply device, and high-frequency amplifierFUJITSU LTD·Filed 2018·Granted May 12, 2020·0 cites·13 claims
- 1047US2006284213A1Semiconductor device and method for fabricating the sameFUJITSU LTD·Filed 2006·Application pending·0 cites
- 1137US2002090789A1Semiconductor device and method for fabricating the sameFUJITSU LTD·Filed 2002·Application pending·0 cites
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