Inventor · disambiguated record
Yasushi Kasa
Also filed as: KASA YASUSHI
58 granted patents·3 pending applications·1,519 citations·filing 1987–2015
99Inventor score
Top patents by PatentIndex Score
61 records- 0195US5608670AFlash memory with improved erasability and its circuitryFUJITSU LTD·Filed 1995·Granted Mar 4, 1997·66 cites·8 claims
- 0294US5487036ANonvolatile semiconductor memoryFUJITSU LTD·Filed 1994·Granted Jan 23, 1996·79 cites·9 claims
- 0394US5452251ASemiconductor memory device for selecting and deselecting blocks of word linesFUJITSU LTD·Filed 1993·Granted Sep 19, 1995·70 cites·6 claims
- 0493US5590074ANonvolatile semiconductor memoryFUJITSU LTD·Filed 1995·Granted Dec 31, 1996·82 cites·7 claims
- 0592US6646920B2Nonvolatile semiconductor memory device having electrically and collectively erasable characteristicsFUJITSU LTD·Filed 2002·Granted Nov 11, 2003·38 cites·4 claims
- 0692US6331950B1Write protect input implementation for a simultaneous operation flash memory deviceFUJITSU LTD·Filed 1999·Granted Dec 18, 2001·95 cites·12 claims
- 0792US5537356ANonvolatile semiconductor memoryFUJITSU LTD·Filed 1995·Granted Jul 16, 1996·89 cites·6 claims
- 0890US6618288B2Nonvolatile semiconductor memory device having electrically and collectively erasable characteristicsFUJITSU LTD·Filed 2002·Granted Sep 9, 2003·31 cites·2 claims
- 0990US6275894B1Bank selector circuit for a simultaneous operation flash memory device with a flexible bank partition architectureADVANCED MICRO DEVICES INC·Filed 1998·Granted Aug 14, 2001·68 cites·53 claims
- 1088US7206241B2Semiconductor device and programming methodSPANSION LLC·Filed 2005·Granted Apr 17, 2007·13 cites·13 claims
- 1188US5576637AXOR CMOS logic gateFUJITSU LTD·Filed 1995·Granted Nov 19, 1996·40 cites·1 claims
- 1288US5179536ASemiconductor memory device having means for replacing defective memory cellsFUJITSU LTD·Filed 1991·Granted Jan 12, 1993·94 cites·22 claims
- 1386US6496414B2Nonvolatile semiconductor memoryFUJITSU LTD·Filed 2002·Granted Dec 17, 2002·47 cites·7 claims
- 1485US6397313B1Redundant dual bank architecture for a simultaneous operation flash memoryADVANCED MICRO DEVICES INC·Filed 2000·Granted May 28, 2002·39 cites·25 claims
- 1582US6662262B1OTP sector double protection for a simultaneous operation flash memoryADVANCED MICRO DEVICES INC·Filed 1999·Granted Dec 9, 2003·41 cites·25 claims
- 1681US6310805B1Architecture for a dual-bank page mode memory with redundancyADVANCED MICRO DEVICES INC·Filed 2000·Granted Oct 30, 2001·30 cites·11 claims
- 1778US6865133B2Memory circuit with redundant configurationFUJITSU LTD·Filed 2003·Granted Mar 8, 2005·27 cites·18 claims
- 1876US5770963AFlash memory with improved erasability and its circuitryFUJITSU LTD·Filed 1995·Granted Jun 23, 1998·19 cites·2 claims
- 1976US5640123ASubstrate voltage control circuit for a flash memoryFUJITSU LTD·Filed 1995·Granted Jun 17, 1997·19 cites·6 claims
- 2076US5195057ASemiconductor memory device having a redundant memory which can be selectively placed in a not-in-use statusFUJITSU LTD·Filed 1990·Granted Mar 16, 1993·49 cites·7 claims
- 2175US6100754AVT reference voltage for extremely low power supplyADVANCED MICRO DEVICES INC·Filed 1998·Granted Aug 8, 2000·31 cites·11 claims
- 2275US5592419AFlash memory with improved erasability and its circuitryFUJITSU LTD·Filed 1995·Granted Jan 7, 1997·23 cites·1 claims
- 2375US5402380ANonvolatile semiconductor memory device having a status register and test method for the sameFUJITSU LTD·Filed 1994·Granted Mar 28, 1995·27 cites·2 claims
- 2473US5490107ANonvolatile semiconductor memoryFUJITSU LTD·Filed 1992·Granted Feb 6, 1996·22 cites·44 claims
- 2572US6275412B1Common flash interface implementation for a simultaneous operation flash memory deviceADVANCED MICRO DEVICES INC·Filed 2000·Granted Aug 14, 2001·17 cites·20 claims
- 2672US6208564B1High voltage comparatorFUJITSU LTD·Filed 1999·Granted Mar 27, 2001·31 cites·16 claims
- 2772US5666314ASemiconductor memory device for selecting and deselecting blocks of word linesFUJITSU LTD·Filed 1995·Granted Sep 9, 1997·18 cites·5 claims
- 2871US8225172B2Error correction scheme for non-volatile memoryKASA YASUSHI·Filed 2008·Granted Jul 17, 2012·4 cites·10 claims
- 2969US6633949B2Bank selector circuit for a simultaneous operation flash memory device with a flexible bank partition architectureADVANCED MICRO DEVICES INC·Filed 2001·Granted Oct 14, 2003·13 cites·5 claims
- 3069US5406524ANonvolatile semiconductor memory that eases the dielectric strength requirementsFUJITSU LTD·Filed 1994·Granted Apr 11, 1995·24 cites·4 claims
- 3168US7679150B2Semiconductor device and programming method thereforSPANSION LLC·Filed 2006·Granted Mar 16, 2010·2 cites·6 claims
- 3268US6297993B1Acceleration voltage implementation for a high density flash memory deviceADVANCED MICRO DEVICES INC·Filed 2000·Granted Oct 2, 2001·16 cites·14 claims
- 3367US7012838B2Nonvolatile semiconductor memory device supplying proper program potentialFUJITSU LTD·Filed 2003·Granted Mar 14, 2006·15 cites·5 claims
- 3467US6005803AMemory address decoding circuit for a simultaneous operation flash memory device with a flexible bank partition architectureADVANCED MICRO DEVICES INC·Filed 1998·Granted Dec 21, 1999·26 cites·70 claims
- 3567US5566386ANonvolatile semiconductor memory device having a status register and test method for the sameFUJITSU LTD·Filed 1995·Granted Oct 15, 1996·19 cites·3 claims
- 3666US6033955AMethod of making flexibly partitioned metal line segments for a simultaneous operation flash memory device with a flexible bank partition architectureADVANCED MICRO DEVICES INC·Filed 1998·Granted Mar 7, 2000·25 cites·39 claims
- 3764US4803665ASignal transition detection circuitFUJITSU LTD·Filed 1987·Granted Feb 7, 1989·14 cites·4 claims
- 3862US6567310B2Nonvolatile semiconductor memory with improved sense amplifier operating marginFUJITSU LTD·Filed 2002·Granted May 20, 2003·13 cites·13 claims
- 3962US5995415ASimultaneous operation flash memory device with a flexible bank partition architectureADVANCED MICRO DEVICES INC·Filed 1998·Granted Nov 30, 1999·20 cites·58 claims
- 4061US5631597ANegative voltage circuit for a flash memoryFUJITSU LTD·Filed 1995·Granted May 20, 1997·10 cites·5 claims
- 4161US5469394ANonvolatile semiconductor memory device having a status register and test method for the sameFUJITSU LTD·Filed 1994·Granted Nov 21, 1995·14 cites·6 claims
- 4260US6470414B2Bank selector circuit for a simultaneous operation flash memory device with a flexible bank partition architectureADVANCED MICRO DEVICES INC·Filed 2001·Granted Oct 22, 2002·9 cites·33 claims
- 4357US5592427ASemiconductor memory having a sense amplifier with load transistors having different load characteristicsFUJITSU LTD·Filed 1995·Granted Jan 7, 1997·12 cites·1 claims
- 4456US8769377B2Error correction scheme for non-volatile memorySPANSION LLC·Filed 2013·Granted Jul 1, 2014·0 cites·20 claims
- 4553US5815440ASemiconductor memory device with electrically controllable threshold voltageFUJITSU LTD·Filed 1997·Granted Sep 29, 1998·7 cites·3 claims
- 4652US8438460B2Error correction scheme for non-volatile memoryKASA YASUSHI·Filed 2012·Granted May 7, 2013·0 cites·10 claims
- 4751US6407957B2Semiconductor memoryFUJITSU LTD·Filed 2000·Granted Jun 18, 2002·6 cites·7 claims
- 4850US5293088ASense amplifier circuitFUJITSU LTD·Filed 1990·Granted Mar 8, 1994·13 cites·11 claims
- 4949US6125055ASector write protect CAMS for a simultaneous operation flash memoryADVANCED MICRO DEVICES INC·Filed 1999·Granted Sep 26, 2000·10 cites·22 claims
- 5048US5581107ANonvolatile semiconductor memory that eases the dielectric strength requirementsFUJITSU LTD·Filed 1994·Granted Dec 3, 1996·10 cites·12 claims
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