Inventor
SAKATA TAKESHI
JP181 patents
⚠️ This page may combine multiple inventors who share the name “SAKATA TAKESHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
41 patentsUS7078273B2Jul 18, 2006
Semiconductor memory cell and method of forming same
HITACHI LTD130 citations99
US6740921B2May 25, 2004
Semiconductor memory cell and method of forming same
HITACHI LTD108 citations99
US5724297AMar 3, 1998
Semiconductor integrated circuit device and method of activating the same
HITACHI LTD138 citations99
US5614847AMar 25, 1997
Semiconductor integrated circuit device having power reduction mechanism
HITACHI LTD140 citations99
US5583457ADec 10, 1996
Semiconductor integrated circuit device having power reduction mechanism
HITACHI LTD251 citations99
US5539279AJul 23, 1996
Ferroelectric memory
HITACHI LTD218 citations99
US6560135B2May 6, 2003
Magnetic semiconductor memory apparatus and method of manufacturing the same
HITACHI LTD94 citations98
US6339344B1Jan 15, 2002
Semiconductor integrated circuit device
HITACHI LTD79 citations97
US7116593B2Oct 3, 2006
Storage device
HITACHI LTD60 citations96
US6949782B2Sep 27, 2005
Semiconductor memories
HITACHI LTD49 citations96
US6862235B2Mar 1, 2005
Semiconductor device which is low in power and high in speed and is highly integrated
HITACHI LTD44 citations96
US6787835B2Sep 7, 2004
Semiconductor memories
HITACHI LTD63 citations96
US6696865B2Feb 24, 2004
Semiconductor integrated circuit device having power reduction mechanism
HITACHI LTD32 citations96
US6573586B2Jun 3, 2003
Semiconductor device
HITACHI LTD37 citations96
US6563743B2May 13, 2003
Semiconductor device having dummy cells and semiconductor device having dummy cells for redundancy
HITACHI LTD69 citations96
US6452858B1Sep 17, 2002
Semiconductor device
HITACHI LTD40 citations96
US6407963B1Jun 18, 2002
Semiconductor memory device of DDR configuration having improvement in glitch immunity
HITACHI LTD64 citations96
US6335901B1Jan 1, 2002
Semiconductor device
HITACHI LTD66 citations96
US6300807B1Oct 9, 2001
Timing-control circuit device and clock distribution system
HITACHI LTD70 citations96
US6222792B1Apr 24, 2001
Phase control circuit, semiconductor device and semiconductor memory
HITACHI LTD62 citations96
US6205086B1Mar 20, 2001
Phase control circuit, semiconductor device and semiconductor memory
HITACHI LTD45 citations96
US5926430AJul 20, 1999
Semiconductor integrated circuit device and method of activating the same
HITACHI LTD52 citations96
US5880604AMar 9, 1999
Semiconductor integrated circuit device having power reduction mechanism
HITACHI LTD79 citations96
US5828235AOct 27, 1998
Semiconductor integrated circuit device having power reduction mechanism
HITACHI LTD34 citations96
US5606265AFeb 25, 1997
Semiconductor integrated circuits with power reduction mechanism
HITACHI LTD37 citations96
US5600163AFeb 4, 1997
Semiconductor element and semiconductor memory device using the same
HITACHI LTD32 citations96
US5521527AMay 28, 1996
Semiconductor integrated circuits with power reduction mechanism
HITACHI LTD39 citations96
US5408144AApr 18, 1995
Semiconductor integrated circuits with power reduction mechanism
HITACHI LTD61 citations96
US7366001B2Apr 29, 2008
Content addressable memory including main-match lines and sub-match lines
HITACHI LTD17 citations93
US7341892B2Mar 11, 2008
Semiconductor memory cell and method of forming same
HITACHI LTD12 citations93
US7286430B2Oct 23, 2007
Semiconductor device
HITACHI LTD14 citations93
US7054214B2May 30, 2006
Semiconductor device
HITACHI LTD13 citations93
US7038961B2May 2, 2006
Semiconductor device
HITACHI LTD35 citations93
US6965533B2Nov 15, 2005
Semiconductor device which is low in power and high in speed and is highly integrated
HITACHI LTD18 citations93
US6882557B2Apr 19, 2005
Semiconductor memory device
HITACHI LTD20 citations93
US6862232B2Mar 1, 2005
Semiconductor device
HITACHI LTD22 citations93
US6838901B2Jan 4, 2005
Semiconductor integrated circuits with power reduction mechanism
HITACHI LTD19 citations93
US6668344B1Dec 23, 2003
Semiconductor integrated circuit with memory redundancy circuit
HITACHI LTD28 citations93
US6621292B2Sep 16, 2003
Semiconductor integrated circuits with power reduction mechanism
HITACHI LTD27 citations93
US6617205B1Sep 9, 2003
Semiconductor storage device and process for manufacturing the same
HITACHI LTD14 citations93
US6570206B1May 27, 2003
Semiconductor device
HITACHI LTD45 citations93
RENESAS TECH CORP
4 patentsUS6687175B1Feb 3, 2004
Semiconductor device
RENESAS TECH CORP51 citations96
US7750668B2Jul 6, 2010
Semiconductor integrated circuit device having power reduction mechanism
RENESAS TECH CORP13 citations93
US7436722B2Oct 14, 2008
Semiconductor device
RENESAS TECH CORP12 citations93
US7312640B2Dec 25, 2007
Semiconductor integrated circuit device having power reduction mechanism
RENESAS TECH CORP18 citations93
HITACHI ULSI SYS CO LTD
3 patentsELPIDA MEMORY INC
2 patentsShowing the top 50 of 181 patents by PatentIndex Score.