Inventor
FUKUMOTO KATSUMI
JP21 patents
⚠️ This page may combine multiple inventors who share the name “FUKUMOTO KATSUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SHARP KK
16 patentsUS6240032B1May 29, 2001
Non-volatile semiconductor memory allowing user to enter various refresh commands
SHARP KK159 citations99
US7057922B2Jun 6, 2006
Nonvolatile semiconductor memory device
SHARP KK152 citations98
US5619470AApr 8, 1997
Non-volatile dynamic random access memory
SHARP KK107 citations98
US6006313ADec 21, 1999
Semiconductor memory device that allows for reconfiguration around defective zones in a memory array
SHARP KK60 citations96
US5673222ASep 30, 1997
Nonvolatile semiconductor memory device
SHARP KK61 citations93
US6370058B1Apr 9, 2002
Non-volatile semiconductor memory device and system LSI including the same
SHARP KK51 citations92
US6000004ADec 7, 1999
Nonvolatile semiconductor memory device with write protect data settings for disabling erase from and write into a block, and erase and re-erase settings for enabling write into and erase from a block
SHARP KK47 citations92
US5488587AJan 30, 1996
Non-volatile dynamic random access memory
SHARP KK26 citations92
US5396461AMar 7, 1995
Non-volatile dynamic random access memory device
SHARP KK27 citations92
US5381379AJan 10, 1995
Non-volatile dynamic random access memory device; a page store device and a page recall device used in the same; and a page store method and a page recall method
SHARP KK35 citations92
US5287319AFeb 15, 1994
Nonvolatile semiconductor memory device
SHARP KK32 citations92
US5181188AJan 19, 1993
Semiconductor memory device
SHARP KK29 citations92
US5153853AOct 6, 1992
Method and apparatus for measuring EEPROM threshold voltages in a nonvolatile DRAM memory device
SHARP KK31 citations91
US6865658B2Mar 8, 2005
Nonvolatile data management system using data segments and link information
SHARP KK17 citations82
US5146431ASep 8, 1992
Method and apparatus for page recall of data in an nonvolatile DRAM memory device
SHARP KK8 citations72
US7187582B2Mar 6, 2007
Erroneous operation preventing circuit of non-volatile memory device
SHARP KK0 citations52