Inventor · disambiguated record
Sadayuki Ohkuma
Also filed as: OHKUMA SADAYUKI
16 granted patents·2 pending applications·326 citations·filing 1990–2008
95Inventor score
Technology areasG11C
Top patents by PatentIndex Score
18 records- 0192US6195306B1Semiconductor deviceHITACHI LTD·Filed 1999·Granted Feb 27, 2001·57 cites·11 claims
- 0291US5638335ASemiconductor deviceHITACHI LTD·Filed 1996·Granted Jun 10, 1997·91 cites·6 claims
- 0390US5115413ASemiconductor memory deviceHITACHI LTD·Filed 1990·Granted May 19, 1992·55 cites·16 claims
- 0486US7072202B2Semiconductor device having a power down modeHITACHI LTD·Filed 2005·Granted Jul 4, 2006·10 cites·20 claims
- 0585US7082074B2Semiconductor device having a power down modeHITACHI LTD·Filed 2005·Granted Jul 25, 2006·9 cites·10 claims
- 0681US7298662B2Semiconductor device with power down arrangement for reduce power consumptionHITACHI LTD·Filed 2006·Granted Nov 20, 2007·7 cites·10 claims
- 0780US6870790B2Semiconductor device having a power down modeHITACHI LTD·Filed 2003·Granted Mar 22, 2005·15 cites·8 claims
- 0878US6680875B2Semiconductor device, such as a synchronous DRAM, including a control circuit for reducing power consumptionHITACHI LTD·Filed 2002·Granted Jan 20, 2004·13 cites·3 claims
- 0974US5313423ASemiconductor memory deviceHITACHI LTD·Filed 1991·Granted May 17, 1994·24 cites·6 claims
- 1069US7411856B2Semiconductor device with improved power supply arrangementHITACHI LTD·Filed 2007·Granted Aug 12, 2008·3 cites·4 claims
- 1168US7688670B2Semiconductor device with improved power supply control for a plurality of memory arraysRISING SILICON INC·Filed 2008·Granted Mar 30, 2010·3 cites·3 claims
- 1268US5497353ASemiconductor memory deviceHITACHI LTD·Filed 1995·Granted Mar 5, 1996·19 cites·7 claims
- 1355US7411855B2Semiconductor device with improved power supply arrangementHITACHI LTD·Filed 2007·Granted Aug 12, 2008·1 cites·3 claims
- 1446US5436870ASemiconductor memory deviceHITACHI LTD·Filed 1994·Granted Jul 25, 1995·7 cites·16 claims
- 1540US5289428ASemiconductor memory deviceHITACHI LTD AND HITACHI VLSI E·Filed 1992·Granted Feb 22, 1994·5 cites·18 claims
- 1640US5274594AStatic RAMHITACHI LTD·Filed 1992·Granted Dec 28, 1993·7 cites·4 claims
- 1736US2001001262A1Semiconductor deviceFiled 2001·Application pending·0 cites
- 1836US2001008497A1Semiconductor deviceFiled 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →