Inventor · disambiguated record
Masazumi Marutani
Also filed as: MARUTANI MASAZUMI
9 granted patents·3 pending applications·78 citations·filing 2002–2013
87Inventor score
Top patents by PatentIndex Score
12 records- 0191US7388416B2Latch circuit, 4-phase clock generator, and receiving circuitFUJITSU LTD·Filed 2005·Granted Jun 17, 2008·27 cites·13 claims
- 0277US7187217B2Clock frequency divider and trigger signal generation circuit for sameFUJITSU LTD·Filed 2005·Granted Mar 6, 2007·10 cites·14 claims
- 0372US7324758B2Optical dispersion monitoring apparatus and optical dispersion monitoring method, and optical transmission system using sameFUJITSU LTD·Filed 2003·Granted Jan 29, 2008·14 cites·11 claims
- 0470US8432193B2Divider and mixer circuit having the sameMARUTANI MASAZUMI·Filed 2011·Granted Apr 30, 2013·4 cites·16 claims
- 0569US7795925B2Phase difference detector and phase difference detection methodFUJITSU LTD·Filed 2009·Granted Sep 14, 2010·6 cites·9 claims
- 0668US7965808B2Frequency dividing deviceFUJITSU LTD·Filed 2009·Granted Jun 21, 2011·6 cites·6 claims
- 0755US9019017B2Digitally controlled oscillator and digital PLL including the sameFUJITSU LTD·Filed 2013·Granted Apr 28, 2015·1 cites·10 claims
- 0854US7750747B2Clock selection circuit and synthesizerFUJITSU LTD·Filed 2007·Granted Jul 6, 2010·3 cites·12 claims
- 0952US7027741B2Phase lock loop circuit and optical repeating apparatus, optical terminal apparatus, and optical communication system having the sameFUJITSU LTD·Filed 2002·Granted Apr 11, 2006·7 cites·61 claims
- 1043US2005201496A1Demodulation device and demodulation methodFUJITSU LTD·Filed 2004·Application pending·0 cites
- 1131US2011074514A1Frequency measurement circuit and pll synthesizer provided therewithFUJITSU SEMICONDUCTOR LTD·Filed 2010·Application pending·0 cites
- 1231US2010141319A1Clock signal output circuitFUJITSU LTD·Filed 2010·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →