Inventor · disambiguated record
Tatsumi Sumi
Also filed as: SUMI TATSUMI
29 granted patents·694 citations·filing 1981–2008
97Inventor score
Top patents by PatentIndex Score
29 records- 0197US5179298ACMOS buffer circuit which is not influenced by bounce noiseMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1991·Granted Jan 12, 1993·149 cites·20 claims
- 0286US5828615AReference potential generator and a semiconductor memory device having the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Oct 27, 1998·53 cites·6 claims
- 0385US5864247AVoltage detection circuit, power-on/off reset circuit, and semiconductor deviceMATSUSHITA ELECTRONICS CORP·Filed 1996·Granted Jan 26, 1999·37 cites·10 claims
- 0481US5523974ASemiconductor memory device with redundant memory cell backupMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Jun 4, 1996·48 cites·15 claims
- 0580US6848620B2Semiconductor integrated circuitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Feb 1, 2005·30 cites·4 claims
- 0679US7850086B2Semiconductor integrated circuit and noncontact information system including itPANASONIC CORP·Filed 2005·Granted Dec 14, 2010·9 cites·15 claims
- 0778US6659352B1Semiconductor integrated circuit, a contactless information medium having the semiconductor integrated circuit, and a method of driving the semiconductor integrated circuitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Dec 9, 2003·30 cites·17 claims
- 0876US5675530AFerroelectric memory deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Oct 7, 1997·37 cites·10 claims
- 0974US5515312ASemiconductor memory deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted May 7, 1996·33 cites·28 claims
- 1071US6907088B1Contactless IC card for preventing incorrect data recovery in demodulation of an amplitude-modulated carrier waveMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Jun 14, 2005·18 cites·18 claims
- 1170US5430671ASemiconductor memory deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Jul 4, 1995·27 cites·21 claims
- 1269US6067265AReference potential generator and a semiconductor memory device having the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted May 23, 2000·22 cites·10 claims
- 1369US5392234ASemiconductor memory deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Feb 21, 1995·24 cites·24 claims
- 1468US6538482B2Voltage detection circuit, power-on/off reset circuit, and semiconductor deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Mar 25, 2003·11 cites·12 claims
- 1568US5448159AReference voltage generatorMATSUSHITA ELECTRONICS CORP·Filed 1994·Granted Sep 5, 1995·26 cites·16 claims
- 1666US7890283B2Malfunction detection system and integrated circuitPANASONIC CORP·Filed 2008·Granted Feb 15, 2011·5 cites·14 claims
- 1762US7011252B2IC card and OS activation method for the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Mar 14, 2006·11 cites·18 claims
- 1861US6822493B2Voltage detection circuit, power-on/off reset circuit, and semiconductor deviceMATSUSHITA ELECTRONICS CORP·Filed 2003·Granted Nov 23, 2004·5 cites·1 claims
- 1960US5053998ASemiconductor memory device with dual drivers to sense amp arrayMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1990·Granted Oct 1, 1991·24 cites·9 claims
- 2057US5953277AReference potential generator and a semiconductor memory device having the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Sep 14, 1999·13 cites·11 claims
- 2157US5898608AMethod for operating a ferroelectric memoryMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Apr 27, 1999·17 cites·15 claims
- 2255US5694445ASemiconductor device with means for charge recyclingMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Dec 2, 1997·15 cites·22 claims
- 2353US4431970AQuadrature detector using a double balanced differential circuit and a constant current circuitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1981·Granted Feb 14, 1984·11 cites·7 claims
- 2451US5467302ASemiconductor memory deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Nov 14, 1995·11 cites·31 claims
- 2547US5546342ASemiconductor memory device including reverse and rewrite meansMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Aug 13, 1996·11 cites·14 claims
- 2646US7138699B2Semiconductor integrated circuit and noncontact information mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Nov 21, 2006·2 cites·4 claims
- 2746US6882193B2Voltage detection circuit, power-on/off reset circuit, and semiconductor deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Apr 19, 2005·3 cites·4 claims
- 2844US5282165ARandom access memory with redundancy repair circuitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1991·Granted Jan 25, 1994·10 cites·2 claims
- 2932US6246624B1Voltage detection circuit power-on/off reset circuit and semiconductor deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Jun 12, 2001·2 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →