Inventor · disambiguated record
Tatsuzo Hasegawa
Also filed as: HASEGAWA TATSUZO
7 granted patents·209 citations·filing 1989–2003
87Inventor score
Top patents by PatentIndex Score
7 records- 0196US4949048APulse width modulation amplifier circuitPIONEER ELECTRONIC CORP·Filed 1989·Granted Aug 14, 1990·77 cites·5 claims
- 0290US4992749APulse-width modulating amplifier circuitPIONEER ELECTRONIC CORP·Filed 1989·Granted Feb 12, 1991·39 cites·3 claims
- 0390US4968948APulse width modulation amplifier circuitPIONEER ELECTRONIC CORP·Filed 1989·Granted Nov 6, 1990·40 cites·3 claims
- 0485US4952884APulse width modulation amplifier circuitPIONEER ELECTRONIC CORP·Filed 1989·Granted Aug 28, 1990·30 cites·3 claims
- 0554US6806766B2BTL amplifying systemPIONEER CORP·Filed 2003·Granted Oct 19, 2004·8 cites·20 claims
- 0648US7092533B1BTL amplifier apparatusPIONEER CORP·Filed 1999·Granted Aug 15, 2006·12 cites·3 claims
- 0744US7239046B2Electric power supply unit and electric power supply controlling methodPIONEER CORP·Filed 2003·Granted Jul 3, 2007·3 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →