Inventor · disambiguated record
Ryuta Nagai
Also filed as: NAGAI RYUTA
11 granted patents·101 citations·filing 2002–2022
89Inventor score
Files withFUJITSU SEMICONDUCTOR LTD5CYPRESS SEMICONDUCTOR CORP2FUJITSU LTD1FUJITSU MICROELECTRONICS LTD1FUTAMURA KAZUYOSHI1
Top patents by PatentIndex Score
11 records- 0189US11521962B1ESD protection circuitCYPRESS SEMICONDUCTOR CORP·Filed 2021·Granted Dec 6, 2022·2 cites·20 claims
- 0289US7843179B2Control circuit for synchronous rectifier-type DC-DC converter, synchronous rectifier-type DC-DC converter and control method thereofFUJITSU SEMICONDUCTOR LTD·Filed 2007·Granted Nov 30, 2010·27 cites·21 claims
- 0387US7821236B2Control circuit for detecting a reverse current in a DC-DC converterFUJITSU SEMICONDUCTOR LTD·Filed 2007·Granted Oct 26, 2010·25 cites·22 claims
- 0479US7733074B2Control circuit of current mode DC-DC converter and control method of current mode DC-DC converterFUJITSU MICROELECTRONICS LTD·Filed 2007·Granted Jun 8, 2010·14 cites·13 claims
- 0574US7936156B2DC-DC converter and control method thereofFUJITSU SEMICONDUCTOR LTD·Filed 2008·Granted May 3, 2011·7 cites·14 claims
- 0670US7956586B2Step-up/step-down type DC-DC converter, and control circuit and control method of the sameFUJITSU SEMICONDUCTOR LTD·Filed 2007·Granted Jun 7, 2011·10 cites·15 claims
- 0767US11876090B2ESD protection circuitCYPRESS SEMICONDUCTOR CORP·Filed 2022·Granted Jan 16, 2024·0 cites·14 claims
- 0858US8314599B2DC/DC converter control circuit and DC/DC converter control methodNAGAI RYUTA·Filed 2009·Granted Nov 20, 2012·6 cites·18 claims
- 0955US7916503B2DC-DC converter, power supply voltage supplying method, and power supply voltage supplying systemFUJITSU SEMICONDUCTOR LTD·Filed 2008·Granted Mar 29, 2011·3 cites·20 claims
- 1045US6731099B2DC-DC converter with control circuit capable of generating step-up and step-down signalsFUJITSU LTD·Filed 2002·Granted May 4, 2004·7 cites·16 claims
- 1137US8988052B2Control circuit for power supply including a detection circuit and a regulation circuit for regulating switching timingFUTAMURA KAZUYOSHI·Filed 2011·Granted Mar 24, 2015·0 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →