Inventor · disambiguated record
Yoshinori Okajima
Also filed as: OKAJIMA YOSHINORI
62 granted patents·4 pending applications·1,188 citations·filing 1983–2022
99Inventor score
Files withFUJITSU LTD54FUJITSU SEMICONDUCTOR LTD3SOCIONEXT INC3FUJITSU MICROELECTRONICS LTD2OKAJIMA YOSHINORI2
Top patents by PatentIndex Score
66 records- 0196US4677455ASemiconductor memory deviceFUJITSU LTD·Filed 1986·Granted Jun 30, 1987·128 cites·14 claims
- 0292US6028816ASystem configured of synchronous semiconductor device for adjusting timing of each input and semiconductor device used thereforFUJITSU LTD·Filed 1997·Granted Feb 22, 2000·85 cites·67 claims
- 0390US6055615APipeline memory access using DRAM with multiple independent banksFUJITSU LTD·Filed 1997·Granted Apr 25, 2000·65 cites·6 claims
- 0485US6114890ASkew-reduction circuitFUJITSU LTD·Filed 1997·Granted Sep 5, 2000·46 cites·18 claims
- 0582US6298004B1Semiconductor device, semiconductor system, and digital delay circuitFUJITSU LTD·Filed 1997·Granted Oct 2, 2001·36 cites·83 claims
- 0682US6049239AVariable delay circuit and semiconductor integrated circuit deviceFUJITSU LTD·Filed 1997·Granted Apr 11, 2000·88 cites·36 claims
- 0781US6498524B1Input/output data synchronizing deviceFUJITSU LTD·Filed 2000·Granted Dec 24, 2002·20 cites·1 claims
- 0881US5083294ASemiconductor memory device having a redundancyFUJITSU LTD·Filed 1990·Granted Jan 21, 1992·53 cites·8 claims
- 0979US6373414B2Serial/parallel converterFUJITSU LTD·Filed 2001·Granted Apr 16, 2002·20 cites·5 claims
- 1079US6194916B1Phase comparator circuit for high speed signals in delay locked loop circuitFUJITSU LTD·Filed 1997·Granted Feb 27, 2001·46 cites·29 claims
- 1176US6873199B2Variable digital delay lineFUJITSU LTD·Filed 2002·Granted Mar 29, 2005·12 cites·1 claims
- 1276US6377101B1Variable delay circuit and semiconductor integrated circuit deviceFUJITSU LTD·Filed 2000·Granted Apr 23, 2002·19 cites·9 claims
- 1376US4604728ASemiconductor memory deviceFUJITSU LTD·Filed 1983·Granted Aug 5, 1986·23 cites·15 claims
- 1475US5526303ASemiconductor memory device having SRAM cellsFUJITSU LTD·Filed 1993·Granted Jun 11, 1996·37 cites·10 claims
- 1574US9766640B2Semiconductor integrated circuit and power supply control system provided with a plurality of semiconductor integrated circuitsSOCIONEXT INC·Filed 2016·Granted Sep 19, 2017·2 cites·11 claims
- 1674US5990537ASemiconductor device with fuseFUJITSU LTD·Filed 1993·Granted Nov 23, 1999·54 cites·28 claims
- 1773US5241225ALevel conversion circuit having improved control and speed of switching from high to low level converter outputsFUJITSU LTD·Filed 1991·Granted Aug 31, 1993·26 cites·17 claims
- 1873US4740918AEmitter coupled semiconductor memory device having a low potential source having two statesFUJITSU LTD·Filed 1985·Granted Apr 26, 1988·30 cites·9 claims
- 1971US6400618B1Semiconductor memory device with efficient redundancy operationFUJITSU LTD·Filed 2000·Granted Jun 4, 2002·18 cites·10 claims
- 2070US7633326B2Timing controller and controlled delay circuit for controlling timing or delay time of a signal by changing phase thereofFUJITSU MICROELECTRONICS LTD·Filed 2006·Granted Dec 15, 2009·3 cites·16 claims
- 2170US7533196B2Semiconductor integrated circuit devicePANASONIC CORP·Filed 2006·Granted May 12, 2009·4 cites·13 claims
- 2270US5200921ASemiconductor integrated circuit including P-channel MOS transistors having different threshold voltagesFUJITSU LTD·Filed 1992·Granted Apr 6, 1993·30 cites·8 claims
- 2369US6507900B1Semiconductor memory device including plural blocks with selecting and sensing or reading operations in different blocks carried out in parallelFUJITSU LTD·Filed 2000·Granted Jan 14, 2003·13 cites·1 claims
- 2467US10855946B2Semiconductor integrated circuit, display device provided with same, and control methodSOCIONEXT INC·Filed 2016·Granted Dec 1, 2020·1 cites·19 claims
- 2567US7388791B2Signal interfaceFUJITSU LTD·Filed 2006·Granted Jun 17, 2008·3 cites·8 claims
- 2667US5412615ASemiconductor integrated circuit deviceFUJITSU LTD·Filed 1993·Granted May 2, 1995·27 cites·4 claims
- 2766US5838604ASemiconductor memory device with an increased band widthFUJITSU LTD·Filed 1997·Granted Nov 17, 1998·28 cites·16 claims
- 2864US5955889AElectronic circuit apparatus for transmitting signals through a bus and semiconductor device for generating a predetermined stable voltageFUJITSU LTD·Filed 1995·Granted Sep 21, 1999·43 cites·63 claims
- 2963US7827468B2Memory system including nonvolatile memory and volatile memory and operating method of sameFUJITSU SEMICONDUCTOR LTD·Filed 2006·Granted Nov 2, 2010·5 cites·20 claims
- 3062US7139849B2Semiconductor integrated circuit deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Nov 21, 2006·7 cites·10 claims
- 3160US6097208ASignal-transfer system and semiconductor device for high-speed data transferFUJITSU LTD·Filed 1997·Granted Aug 1, 2000·36 cites·30 claims
- 3259US6151274ASystem configured of synchronous semiconductor device for adjusting timing of each input and semiconductor device used thereforFUJITSU LTD·Filed 1999·Granted Nov 21, 2000·15 cites·13 claims
- 3357US7368967B2Timing controller and controlled delay circuit for controlling timing or delay time of a signal by changing phase thereofFUJITSU LTD·Filed 2007·Granted May 6, 2008·1 cites·14 claims
- 3456US7561455B2Memory system using single wavelength optical transmissionFUJITSU MICROELECTRONICS LTD·Filed 2006·Granted Jul 14, 2009·1 cites·13 claims
- 3556US6081147ATiming controller and controlled delay circuit for controlling timing or delay time of a signal by changing phase thereofFUJITSU LTD·Filed 1996·Granted Jun 27, 2000·8 cites·83 claims
- 3656US4636831ASemiconductor deviceFUJITSU LTD·Filed 1983·Granted Jan 13, 1987·13 cites·3 claims
- 3755US7417884B2Memory systemFUJITSU LTD·Filed 2006·Granted Aug 26, 2008·3 cites·18 claims
- 3855US6701396B2Data burst transfer circuit, parallel-serial and serial-parallel conversion circuits, and an oscillation circuitFUJITSU LTD·Filed 2001·Granted Mar 2, 2004·3 cites·10 claims
- 3955US6097323ASerial/parallel converter using holding and latch flip-flopsFUJITSU LTD·Filed 1998·Granted Aug 1, 2000·13 cites·6 claims
- 4055US4618944ASemiconductor memory having word line discharge current controllerFUJITSU LTD·Filed 1984·Granted Oct 21, 1986·9 cites·8 claims
- 4153US6928496B2Data burst transfer circuit, parallel-serial and serial-parallel conversion circuits, and an oscillation circuitFUJITSU LTD·Filed 2004·Granted Aug 9, 2005·2 cites·2 claims
- 4253US5793680AInput buffer circuit, integrated circuit device, semiconductor memory, and integrated circuit system coping with high-frequency clock signalFUJITSU LTD·Filed 1996·Granted Aug 11, 1998·22 cites·16 claims
- 4352US9880572B2Semiconductor integrated circuit and power supply control system provided with a plurality of semiconductor integrated circuitsSOCIONEXT INC·Filed 2017·Granted Jan 30, 2018·0 cites·2 claims
- 4452US5838630AIntegrated circuit device, semiconductor memory, and integrated circuit system coping with high-frequency clock signalFUJITSU LTD·Filed 1997·Granted Nov 17, 1998·20 cites·28 claims
- 4550US6163832ASemiconductor memory device including plural blocks with a pipeline operation for carrying out operations in predetermined orderFUJITSU LTD·Filed 1997·Granted Dec 19, 2000·9 cites·17 claims
- 4649US7941730B2Memory systemFUJITSU SEMICONDUCTOR LTD·Filed 2006·Granted May 10, 2011·2 cites·12 claims
- 4748US6420922B1Timing controller and controlled delay circuit for controlling timing or delay time of a signal by changing phase thereofFUJITSU LTD·Filed 2001·Granted Jul 16, 2002·2 cites·16 claims
- 4848US6333657B1Timing controller and controlled delay circuit for controlling timing or delay time of a signal by changing phase thereofFUJITSU LTD·Filed 2000·Granted Dec 25, 2001·2 cites·88 claims
- 4946US5225716ASemiconductor integrated circuit having means for suppressing a variation in a threshold level due to temperature variationFUJITSU LTD·Filed 1992·Granted Jul 6, 1993·8 cites·12 claims
- 5044US4744060ABipolar-transistor type random access memory having redundancy configurationFUJITSU LTD·Filed 1985·Granted May 10, 1988·8 cites·30 claims
Showing the top 50 of 66 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →