Inventor · Iruma, JP

Kazuhiko Kajigaya

227Patents
24h-index
103Co-inventors
93Inventor score

Filing activity: Sep 11, 1984 → Aug 20, 2020

Most-cited inventions

PatentTitleAreaCited byStatus
US5426603A Dynamic RAM and information processing system using the same Physics 110 Expired
US5724297A Semiconductor integrated circuit device and method of activating the same Electricity 80 Expired
US6372554B1 Semiconductor integrated circuit device and method for production of the same Electricity 77 Expired
US6150689A Semiconductor integrated circuit device and method for manufacturing the same Emerging Cross-Sectional Technologies 66 Expired
US5426616A Semiconductor IC device having a voltage conversion circuit which generates an internal supply voltage having value compensated for external supply voltage variations Physics 65 Expired
US7948784B2 Semiconductor memory device having vertical transistors Electricity 52 Active
US6107869A Semiconductor integrated circuit Electricity 51 Expired
US5604365A Semiconductor integrated circuit device and a manufacturing method thereof Electricity 43 Expired
US5926430A Semiconductor integrated circuit device and method of activating the same Electricity 39 Expired
US9514792B2 Semiconductor device having stacked layers Electricity 37 Active
US5726930A Semiconductor memory device Physics 36 Expired
US6201728A Dynamic RAM, semiconductor storage device, and semiconductor integrated circuit device Electricity 36 Expired
US6195306A Semiconductor device Physics 34 Expired
US5579256A Semiconductor memory device and defect remedying method thereof Emerging Cross-Sectional Technologies 34 Expired
US7603592B2 Semiconductor device having a sense amplifier array with adjacent ECC Physics 32 Active
US5963467A Semiconductor memory device Physics 30 Expired
US9761312B1 FeRAM-DRAM hybrid memory Physics 30 Active
US4967396A Semiconductor integrated circuit device Emerging Cross-Sectional Technologies 27 Expired
US5151881A Semiconductor memory including an arrangement to permit external monitoring of an internal control signal Physics 27 Expired
US5602771A Semiconductor memory device and defect remedying method thereof Electricity 27 Expired
US6195305A Semiconductor integrated circuit device Physics 25 Expired
US4780852A Semiconductor memory Physics 25 Expired
US5905685A Dynamic memory Physics 24 Expired
US5981369A Semiconductor integrated circuit device and process for manufacturing the same Electricity 24 Expired
US5029330A Semiconductor memory device Physics 23 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.