Inventor
FUNABA SEIJI
JP45 patents
⚠️ This page may combine multiple inventors who share the name “FUNABA SEIJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ELPIDA MEMORY INC
28 patentsUS7102905B2Sep 5, 2006
Stacked memory, memory module and memory system
ELPIDA MEMORY INC100 citations98
US7633147B2Dec 15, 2009
Semiconductor unit having two device terminals for every one input/output signal
ELPIDA MEMORY INC60 citations97
US6707726B2Mar 16, 2004
Register without restriction of number of mounted memory devices and memory module having the same
ELPIDA MEMORY INC64 citations94
US7478287B2Jan 13, 2009
Semiconductor integrated circuit and electronic device
ELPIDA MEMORY INC17 citations93
US7411806B2Aug 12, 2008
Memory module and memory system
ELPIDA MEMORY INC15 citations93
US7385281B2Jun 10, 2008
Semiconductor integrated circuit device
ELPIDA MEMORY INC25 citations93
US7282791B2Oct 16, 2007
Stacked semiconductor device and semiconductor memory module
ELPIDA MEMORY INC22 citations93
US7239169B2Jul 3, 2007
Semiconductor apparatus capable of preventing occurrence of multiple reflection, driving method, and setting method thereof
ELPIDA MEMORY INC28 citations93
US7161820B2Jan 9, 2007
Memory module and memory system having an expandable signal transmission, increased signal transmission and/or high capacity memory
ELPIDA MEMORY INC19 citations93
US7095661B2Aug 22, 2006
Semiconductor memory module, memory system, circuit, semiconductor device, and DIMM
ELPIDA MEMORY INC41 citations93
US7038498B2May 2, 2006
Input/output circuit, reference-voltage generating circuit, and semiconductor integrated circuit
ELPIDA MEMORY INC33 citations93
US6970369B2Nov 29, 2005
Memory device
ELPIDA MEMORY INC34 citations93
US6937494B2Aug 30, 2005
Memory module, memory chip, and memory system
ELPIDA MEMORY INC54 citations93
US6853213B2Feb 8, 2005
Input/output circuit, reference-voltage generating circuit, and semiconductor integrated circuit
ELPIDA MEMORY INC36 citations93
US7558336B2Jul 7, 2009
Semiconductor device, memory device and memory module having digital interface
ELPIDA MEMORY INC8 citations84
US7447038B2Nov 4, 2008
Module
ELPIDA MEMORY INC10 citations84
USRE40205EApr 1, 2008
Semiconductor device and timing control circuit
ELPIDA MEMORY INC12 citations84
US6985009B2Jan 10, 2006
Signal transmitting system
ELPIDA MEMORY INC18 citations84
US7768867B2Aug 3, 2010
Stacked semiconductor device
ELPIDA MEMORY INC8 citations83
US7051225B2May 23, 2006
Memory system, module and register
ELPIDA MEMORY INC10 citations74
US6862246B2Mar 1, 2005
Semiconductor apparatus which prevents generating noise and being influenced by noise
ELPIDA MEMORY INC8 citations74
US7760531B2Jul 20, 2010
Semiconductor module
ELPIDA MEMORY INC2 citations63
US7725778B2May 25, 2010
Semiconductor integrated circuit and electronic device
ELPIDA MEMORY INC4 citations63
US7689944B2Mar 30, 2010
Method for designing semiconductor apparatus, system for aiding to design semiconductor apparatus, computer program product therefor and semiconductor package
ELPIDA MEMORY INC3 citations63
US7016212B2Mar 21, 2006
Memory module and memory system suitable for high speed operation
ELPIDA MEMORY INC6 citations63
US7656744B2Feb 2, 2010
Memory module with load capacitance added to clock signal input
ELPIDA MEMORY INC2 citations57
US7889584B2Feb 15, 2011
Semiconductor memory device having input first-stage circuit
ELPIDA MEMORY INC1 citations52
US7856072B2Dec 21, 2010
Semiconductor device, memory device and memory module having digital interface
ELPIDA MEMORY INC0 citations52
HITACHI LTD
7 patentsUS6628538B2Sep 30, 2003
Memory module including module data wirings available as a memory access data bus
HITACHI LTD151 citations99
US6269051B1Jul 31, 2001
Semiconductor device and timing control circuit
HITACHI LTD91 citations98
US6519173B2Feb 11, 2003
Memory system
HITACHI LTD49 citations96
US6212127B1Apr 3, 2001
Semiconductor device and timing control circuit
HITACHI LTD51 citations96
US6438014B2Aug 20, 2002
High speed access compatible memory module
HITACHI LTD23 citations93
US6411539B2Jun 25, 2002
Memory system
HITACHI LTD19 citations93
US6986072B2Jan 10, 2006
Register capable of corresponding to wide frequency band and signal generating method using the same
HITACHI LTD17 citations82
FUNABA SEIJI
4 patentsUS8436590B2May 7, 2013
Discharge circuit for smoothing capacitor of DC power supply
FUNABA SEIJI18 citations91
US9209737B2Dec 8, 2015
Power converter
FUNABA SEIJI10 citations83
US8456866B2Jun 4, 2013
Power supply circuit and power conversion device
FUNABA SEIJI6 citations72
US8970155B2Mar 3, 2015
Power inverter
FUNABA SEIJI3 citations60