Patent assignee · JP · COMPANY

ELPIDA MEMORY, INC.

1,474Patents
1,204Active
1,474Granted
62Portfolio score

Filing activity: Aug 14, 1996 → Jan 19, 2015 · 934 expiring within 5 years

Most-cited patents

PatentTitleAreaCited byStatus
US8198168B2 Method of manufacturing capacitive insulating film for capacitor Electricity 427 Active
US7796453B2 Semiconductor device Physics 409 Active
US8351292B2 Semiconductor device and data processing system Electricity 408 Active
US7123497B2 Memory module and memory system Electricity 150 Expired
US7808093B2 Stacked semiconductor device Electricity 111 Active
US8149906B2 Data transfer between chips in a multi-chip semiconductor device with an increased data transfer speed Electricity 108 Active
US7119428B2 Semiconductor device Electricity 91 Expired
US7508238B2 Semiconductor integrated circuit device Electricity 87 Active
US7187607B2 Semiconductor memory device and method for manufacturing same Physics 80 Expired
US8681578B2 Semiconductor device that performs refresh operation Physics 77 Active
US7633146B2 Semiconductor device and a method of manufacturing the same Electricity 77 Active
US7551502B2 Semiconductor device Physics 75 Active
US6771552B2 Semiconductor memory device and control method Physics 70 Expired
US7155627B2 Memory system and data transmission method Physics 69 Expired
US8076770B2 Semiconductor device including a first land on the wiring substrate and a second land on the sealing portion Electricity 69 Active
US8400805B2 Semiconductor device Electricity 68 Active
US7466577B2 Semiconductor storage device having a plurality of stacked memory chips Electricity 67 Active
US7249289B2 Method of deciding error rate and semiconductor integrated circuit device Physics 67 Expired
US7102905B2 Stacked memory, memory module and memory system Emerging Cross-Sectional Technologies 64 Expired
US7502252B2 Nonvolatile semiconductor memory device and phase change memory device Electricity 63 Expired
US7122463B2 Manufacturing method of semiconductor device Electricity 61 Expired
US6795362B2 Power controlling method for semiconductor storage device and semiconductor storage device employing same Physics 57 Expired
US7633147B2 Semiconductor unit having two device terminals for every one input/output signal Emerging Cross-Sectional Technologies 57 Expired
US7074669B2 Semiconductor integrated circuit device with capacitor of crown structure and method of manufacturing the same Electricity 56 Expired
US6990031B2 Semiconductor memory device control method and semiconductor memory device Physics 53 Expired

Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.