Inventor
OISHI KANJI
JP40 patents
⚠️ This page may combine multiple inventors who share the name “OISHI KANJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
19 patentsUS5754838AMay 19, 1998
Synchronous dynamic memory device capable of operating over wide range of operation frequencies
HITACHI LTD132 citations98
US5202969AApr 13, 1993
Single-chip-cache-buffer for selectively writing write-back and exclusively writing data-block portions to main-memory based upon indication of bits and bit-strings respectively
HITACHI LTD78 citations96
US4727516AFeb 23, 1988
Semiconductor memory device having redundancy means
HITACHI LTD90 citations96
US4656610AApr 7, 1987
Semiconductor memory device having redundancy means
HITACHI LTD83 citations96
US5801554ASep 1, 1998
Semiconductor Integrated circuit device for handling low amplitude signals
HITACHI LTD57 citations95
US5283886AFeb 1, 1994
Multiprocessor cache system having three states for generating invalidating signals upon write accesses
HITACHI LTD81 citations95
US5386394AJan 31, 1995
Semiconductor memory device for performing parallel operations on hierarchical data lines
HITACHI LTD49 citations93
US5598372AJan 28, 1997
Semiconductor memory
HITACHI LTD35 citations92
US5146573ASep 8, 1992
Single chip cache with partial-write circuit for transferring a preselected portion of data between memory and buffer register
HITACHI LTD31 citations92
US5140681AAug 18, 1992
Multi-processing system and cache apparatus for use in the same
HITACHI LTD35 citations92
US4581718AApr 8, 1986
MOS memory
HITACHI LTD37 citations92
US4771406ASep 13, 1988
Semiconductor integrated circuit device
HITACHI LTD17 citations82
US6717833B2Apr 6, 2004
Semiconductor device
HITACHI LTD12 citations74
US6175516B1Jan 16, 2001
Semiconductor device
HITACHI LTD13 citations74
US4943949AJul 24, 1990
Semiconductor memory including means for noise suppression
HITACHI LTD13 citations74
US4905198AFeb 27, 1990
Semiconductor integrated circuit device
HITACHI LTD12 citations74
US4680737AJul 14, 1987
Semiconductor integrated circuit device
HITACHI LTD12 citations74
US5267198ANov 30, 1993
Static memory containing sense amp and sense amp switching circuit
HITACHI LTD8 citations73
US5193075AMar 9, 1993
Static memory containing sense AMP and sense AMP switching circuit
HITACHI LTD10 citations73
ELPIDA MEMORY INC
17 patentsUS7240253B2Jul 3, 2007
Semiconductor storage device
ELPIDA MEMORY INC26 citations92
US7913126B2Mar 22, 2011
Semiconductor memory device and method of testing same
ELPIDA MEMORY INC12 citations84
US7304900B2Dec 4, 2007
Semiconductor memory
ELPIDA MEMORY INC10 citations84
US7274615B2Sep 25, 2007
Semiconductor memory device and semiconductor memory device test method
ELPIDA MEMORY INC18 citations84
US6798367B2Sep 28, 2004
Size-reduced majority circuit
ELPIDA MEMORY INC16 citations84
US7859933B2Dec 28, 2010
Semiconductor memory device and operating method thereof
ELPIDA MEMORY INC9 citations83
US7562269B2Jul 14, 2009
Semiconductor storage device
ELPIDA MEMORY INC14 citations83
US6999352B2Feb 14, 2006
Data inversion circuit and semiconductor device
ELPIDA MEMORY INC16 citations83
US7411435B2Aug 12, 2008
Duty detection circuit
ELPIDA MEMORY INC10 citations82
US7808848B2Oct 5, 2010
Semiconductor memory
ELPIDA MEMORY INC7 citations74
US7542359B2Jun 2, 2009
Semiconductor memory
ELPIDA MEMORY INC7 citations74
US6958638B2Oct 25, 2005
Slew rate controlling method and system for output data
ELPIDA MEMORY INC10 citations74
US7436729B2Oct 14, 2008
Fuse circuit and semiconductor device using fuse circuit thereof
ELPIDA MEMORY INC8 citations73
US7642829B2Jan 5, 2010
Duty detection circuit
ELPIDA MEMORY INC5 citations72
US7276950B2Oct 2, 2007
Prevention of the propagation of jitters in a clock delay circuit
ELPIDA MEMORY INC9 citations72
US8054699B2Nov 8, 2011
Semiconductor memory device having a double branching bidirectional buffer
ELPIDA MEMORY INC3 citations63
US7492661B2Feb 17, 2009
Command generating circuit and semiconductor memory device having the same
ELPIDA MEMORY INC4 citations62