Inventor
ITOH YASUO
JP83 patents
⚠️ This page may combine multiple inventors who share the name “ITOH YASUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOSHIBA KK
44 patentsUS6107658AAug 22, 2000
Non-volatile semiconductor memory device
TOSHIBA KK283 citations99
US6049494AApr 11, 2000
Semiconductor memory device
TOSHIBA KK156 citations99
US6011287AJan 4, 2000
Non-volatile semiconductor memory device
TOSHIBA KK231 citations99
US4959812ASep 25, 1990
Electrically erasable programmable read-only memory with NAND cell structure
TOSHIBA KK652 citations99
US6404274B1Jun 11, 2002
Internal voltage generating circuit capable of generating variable multi-level voltages
TOSHIBA KK139 citations98
US6259612B1Jul 10, 2001
Semiconductor device
TOSHIBA KK124 citations98
US5751634AMay 12, 1998
Non-volatile semiconductor memory device for storing multivalue data and readout/write-in method therefor
TOSHIBA KK100 citations98
US4939690AJul 3, 1990
Electrically erasable programmable read-only memory with NAND cell structure that suppresses memory cell threshold voltage variation
TOSHIBA KK142 citations98
US5361227ANov 1, 1994
Non-volatile semiconductor memory device and memory system using the same
TOSHIBA KK103 citations97
US6172911B1Jan 9, 2001
Non-volatile semiconductor memory device with an improved verify voltage generator
TOSHIBA KK54 citations96
US6002354ADec 14, 1999
Variable potential generating circuit using current-scaling adding type D/A converter circuit
TOSHIBA KK72 citations96
US5909399AJun 1, 1999
Non-volatile semiconductor memory device and memory system using the same
TOSHIBA KK26 citations96
US5831903ANov 3, 1998
Electrically erasable programmable read-only memory with threshold value controller for data programming and method of programming the same
TOSHIBA KK76 citations96
US5793696AAug 11, 1998
Non-volatile semiconductor memory device and memory system using the same
TOSHIBA KK27 citations96
USRE35838EJul 7, 1998
Electrically erasable programmable read-only memory with NAND cell structure
TOSHIBA KK90 citations96
US5724300AMar 3, 1998
Non-volatile semiconductor memory device and memory system using the same
TOSHIBA KK50 citations96
US5642072AJun 24, 1997
High voltage generator circuit
TOSHIBA KK47 citations96
US5615165AMar 25, 1997
Non-volatile semiconductor memory device and memory system using the same
TOSHIBA KK43 citations96
US5546351AAug 13, 1996
Non-volatile semiconductor memory device and memory system using the same
TOSHIBA KK65 citations96
US5388084AFeb 7, 1995
Non-volatile semiconductor memory device with high voltage generator
TOSHIBA KK71 citations96
US5278794AJan 11, 1994
NAND-cell type electrically erasable and programmable read-only memory with redundancy circuit
TOSHIBA KK92 citations96
US5075890ADec 24, 1991
Electrically erasable programmable read-only memory with nand cell
TOSHIBA KK62 citations96
US5043942AAug 27, 1991
Nand cell type programmable read-only memory with common control gate driver circuit
TOSHIBA KK58 citations96
US5050125ASep 17, 1991
Electrically erasable programmable read-only memory with NAND cellstructure
TOSHIBA KK60 citations95
US7139201B2Nov 21, 2006
Non-volatile semiconductor memory device and memory system using the same
TOSHIBA KK24 citations93
US6967892B2Nov 22, 2005
Non-volatile semiconductor memory device and memory system using the same
TOSHIBA KK27 citations93
US6781895B1Aug 24, 2004
Non-volatile semiconductor memory device and memory system using the same
TOSHIBA KK27 citations93
US6081454AJun 27, 2000
Electrically erasable programmable read-only memory with threshold value controller for data programming
TOSHIBA KK23 citations93
US6061289AMay 9, 2000
Variable potential generating circuit using current-scaling adding type D/A converter circuit in semiconductor memory device
TOSHIBA KK37 citations93
US6016274AJan 18, 2000
Semiconductor memory device
TOSHIBA KK17 citations93
US5898335AApr 27, 1999
High voltage generator circuit
TOSHIBA KK29 citations93
US5818791AOct 6, 1998
Non-volatile semiconductor memory device and memory system using the same
TOSHIBA KK24 citations93
US5784315AJul 21, 1998
Semiconductor memory device
TOSHIBA KK41 citations93
US5657270AAug 12, 1997
Electrically erasable programmable read-only memory with threshold value controller for data programming
TOSHIBA KK36 citations93
US5452249ASep 19, 1995
Non-volatile semiconductor memory device with verify mode for verifying data written to memory cells
TOSHIBA KK25 citations93
US5247480ASep 21, 1993
Electrically erasable progammable read-only memory with nand cell blocks
TOSHIBA KK34 citations93
US4638458AJan 20, 1987
Semiconductor memory address lines with varied interval contact holes
TOSHIBA KK25 citations93
US5978265ANov 2, 1999
Non-volatile semiconductor memory device with nand type memory cell arrays
TOSHIBA KK35 citations92
US5508957AApr 16, 1996
Non-volatile semiconductor memory with NAND cell structure and switching transistors with different channel lengths to reduce punch-through
TOSHIBA KK56 citations92
US5400279AMar 21, 1995
Nonvolatile semiconductor memory device with NAND cell structure
TOSHIBA KK24 citations92
US5179427AJan 12, 1993
Non-volatile semiconductor memory device with voltage stabilizing electrode
TOSHIBA KK32 citations92
US4799193AJan 17, 1989
Semiconductor memory devices
TOSHIBA KK33 citations92
US4748596AMay 31, 1988
Semiconductor memory device with sense amplifiers
TOSHIBA KK27 citations92
US5880994AMar 9, 1999
Non-volatile semiconductor memory device having verify function
TOSHIBA KK13 citations82
NIPPON STEEL CORP
2 patentsKABUSHIKI KASIHA TOSHIBA
1 patentHOKURIKU PHARMACEUTICAL
1 patentTANAKA SHIGENORI
1 patentVICTOR COMPANY OF JAPAN
1 patentShowing the top 50 of 83 patents by PatentIndex Score.