Inventor
ITO YUTAKA
JP204 patents
⚠️ This page may combine multiple inventors who share the name “ITO YUTAKA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
16 patentsUS6735726B2May 11, 2004
Method of deciding error rate and semiconductor integrated circuit device
HITACHI LTD165 citations99
US6697992B2Feb 24, 2004
Data storing method of dynamic RAM and semiconductor memory device
HITACHI LTD157 citations99
US5365519ANov 15, 1994
ATM switch1ng system connectable to I/O links having different transmission rates
HITACHI LTD73 citations97
US7051260B2May 23, 2006
Data storing method of dynamic RAM and semiconductor memory device
HITACHI LTD55 citations96
US6068911AMay 30, 2000
Super water-repellent coating material, and super water-repellent coating film using the same
HITACHI LTD69 citations96
US5799014AAug 25, 1998
ATM cell switching system
HITACHI LTD30 citations96
US5710770AJan 20, 1998
ATM cell switching system
HITACHI LTD22 citations96
US7216198B2May 8, 2007
DRAM with super self-refresh and error correction for extended period between refresh operations
HITACHI LTD63 citations94
US6577530B2Jun 10, 2003
Semiconductor memory device having memory cells each capable of storing three or more values
HITACHI LTD49 citations93
US6543360B2Apr 8, 2003
Printing plate and printer using it
HITACHI LTD29 citations92
US6339596B1Jan 15, 2002
ATM cell switching system
HITACHI LTD16 citations92
US6273348B1Aug 14, 2001
Fuel injection valve and direct injection engine using the same
HITACHI LTD26 citations92
US5820964AOct 13, 1998
Magnetic disk, and magnetic disk apparatus
HITACHI LTD22 citations92
US5461607AOct 24, 1995
ATM communication apparatus and failure detection and notification circuit
HITACHI LTD46 citations92
US5410507AApr 25, 1995
Special mode control method for dynamic random access memory
HITACHI LTD50 citations92
US5394008AFeb 28, 1995
Semiconductor integrated circuit device
HITACHI LTD40 citations92
MICRON TECHNOLOGY INC
13 patentsUS9805783B2Oct 31, 2017
Semiconductor device
MICRON TECHNOLOGY INC103 citations99
US10950289B2Mar 16, 2021
Semiconductor device
MICRON TECHNOLOGY INC65 citations98
US10790005B1Sep 29, 2020
Techniques for reducing row hammer refresh
MICRON TECHNOLOGY INC60 citations98
US10573370B2Feb 25, 2020
Apparatus and methods for triggering row hammer address sampling
MICRON TECHNOLOGY INC43 citations98
US10339994B2Jul 2, 2019
Semiconductor device
MICRON TECHNOLOGY INC70 citations98
US10170174B1Jan 1, 2019
Apparatus and methods for refreshing memory
MICRON TECHNOLOGY INC98 citations98
US10032501B2Jul 24, 2018
Semiconductor device
MICRON TECHNOLOGY INC86 citations98
US10490250B1Nov 26, 2019
Apparatuses for refreshing memory of a semiconductor device
MICRON TECHNOLOGY INC51 citations96
US10468076B1Nov 5, 2019
Redundancy area refresh rate increase
MICRON TECHNOLOGY INC30 citations94
US9767919B1Sep 19, 2017
Systems and methods for testing a semiconductor memory device having a reference memory array
MICRON TECHNOLOGY INC23 citations94
US8005995B2Aug 23, 2011
Command interface systems and methods
MICRON TECHNOLOGY INC17 citations93
US11152050B2Oct 19, 2021
Apparatuses and methods for multiple row hammer refresh address sequences
MICRON TECHNOLOGY INC26 citations92
US8004920B2Aug 23, 2011
Power saving memory apparatus, systems, and methods
MICRON TECHNOLOGY INC32 citations92
ELPIDA MEMORY INC
12 patentsUS7493531B2Feb 17, 2009
Semiconductor memory device and refresh period controlling method
ELPIDA MEMORY INC66 citations98
US7318183B2Jan 8, 2008
Data storing method of dynamic RAM and semiconductor memory device
ELPIDA MEMORY INC56 citations98
US7249289B2Jul 24, 2007
Method of deciding error rate and semiconductor integrated circuit device
ELPIDA MEMORY INC93 citations98
US6990031B2Jan 24, 2006
Semiconductor memory device control method and semiconductor memory device
ELPIDA MEMORY INC76 citations98
US6795362B2Sep 21, 2004
Power controlling method for semiconductor storage device and semiconductor storage device employing same
ELPIDA MEMORY INC80 citations98
US7167403B2Jan 23, 2007
Semiconductor storage device and refresh control method therefor
ELPIDA MEMORY INC45 citations96
US7346829B2Mar 18, 2008
Semiconductor device and testing method for same
ELPIDA MEMORY INC24 citations93
US7260011B2Aug 21, 2007
Semiconductor storage device and refresh control method therefor
ELPIDA MEMORY INC14 citations93
US7225390B2May 29, 2007
Semiconductor memory device provided with error correcting code circuitry
ELPIDA MEMORY INC54 citations93
US7158433B2Jan 2, 2007
Semiconductor storage device and method of controlling refreshing of semiconductor storage device
ELPIDA MEMORY INC33 citations93
US6992942B2Jan 31, 2006
Cell leakage monitoring circuit and monitoring method
ELPIDA MEMORY INC19 citations93
US7184351B2Feb 27, 2007
Semiconductor memory device
ELPIDA MEMORY INC53 citations92
MORITA MFG
2 patentsTANIMOTO HIDEYUKI
1 patentMATSUSHITA ELECTRIC INDUSTRIAL CO LTD
1 patentSHARP KK
1 patentITO YUTAKA
1 patentHITACHI KOKI KK
1 patentNAKANISHI TAKUYA
1 patentSUMITOMO ELECTRIC INDUSTRIES
1 patentShowing the top 50 of 204 patents by PatentIndex Score.