Inventor
SEKI KOICHI
JP46 patents
⚠️ This page may combine multiple inventors who share the name “SEKI KOICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
38 patentsUS6438036B2Aug 20, 2002
Nonvolatile semiconductor memory device
HITACHI LTD75 citations97
US5781476AJul 14, 1998
Nonvolatile semiconductor memory device
HITACHI LTD65 citations97
US6016273AJan 18, 2000
Nonvolatile semiconductor memory device
HITACHI LTD25 citations96
US5991200ANov 23, 1999
Nonvolatile semiconductor memory device
HITACHI LTD20 citations96
US5844842ADec 1, 1998
Nonvolatile semiconductor memory device
HITACHI LTD47 citations96
US5623533AApr 22, 1997
Mobile communication end device with low power operation mode
HITACHI LTD66 citations96
US5600163AFeb 4, 1997
Semiconductor element and semiconductor memory device using the same
HITACHI LTD32 citations96
US5359221AOct 25, 1994
Semiconductor device
HITACHI LTD107 citations96
US5634257AJun 3, 1997
Hot strip rolling plant and method directly combined with continuous casting
HITACHI LTD78 citations95
US5151385ASep 29, 1992
Method of manufacturing a metallic silicide transparent electrode
HITACHI LTD76 citations95
US5923189AJul 13, 1999
Semiconductor integrated circuit comprised of pass-transistor circuits with different mutual connections
HITACHI LTD23 citations93
US5712792AJan 27, 1998
Logic circuit sythesizing method utilizing binary decision diagram explored based upon hierarchy of correlation between input variables
HITACHI LTD27 citations93
US5534800AJul 9, 1996
Sense amplifier, SRAM, and microprocessor
HITACHI LTD26 citations93
US5315547AMay 24, 1994
Nonvolatile semiconductor memory device with selective tow erasure
HITACHI LTD30 citations91
US5630467AMay 20, 1997
Thin slab continuous casting machine and method
HITACHI LTD26 citations89
US6291852B1Sep 18, 2001
Semiconductor element and semiconductor memory device using the same
HITACHI LTD9 citations82
US5959894ASep 28, 1999
Nonvolatile semiconductor memory device
HITACHI LTD8 citations82
US5949715ASep 7, 1999
Nonvolatile semiconductor memory device
HITACHI LTD10 citations82
US5917752AJun 29, 1999
Nonvolatile semiconductor memory device
HITACHI LTD13 citations82
US4788582ANov 29, 1988
Semiconductor device and method of manufacturing the same
HITACHI LTD16 citations81
US7061053B2Jun 13, 2006
Semiconductor element and semiconductor memory device using the same
HITACHI LTD3 citations74
US6787841B2Sep 7, 2004
Semiconductor element and semiconductor memory device using the same
HITACHI LTD8 citations74
US6674117B2Jan 6, 2004
Semiconductor element and semiconductor memory device using the same
HITACHI LTD7 citations74
US6388474B2May 14, 2002
Semiconductor integrated circuit
HITACHI LTD4 citations74
US6337293B1Jan 8, 2002
Method of forming a quantum memory element having a film of amorphous silicon
HITACHI LTD4 citations74
US6259629B1Jul 10, 2001
Nonvolatile semiconductor memory device
HITACHI LTD3 citations74
US6260185B1Jul 10, 2001
Method for designing semiconductor integrated circuit and automatic designing device
HITACHI LTD14 citations74
US6259276B1Jul 10, 2001
Semiconductor integrated circuit
HITACHI LTD5 citations74
US6181600B1Jan 30, 2001
Nonvolatile semiconductor memory device
HITACHI LTD4 citations74
US6157576ADec 5, 2000
Nonvolatile semiconductor memory device
HITACHI LTD2 citations74
US6104056AAug 15, 2000
Semiconductor element and semiconductor memory device using the same
HITACHI LTD5 citations74
US6049232AApr 11, 2000
Semiconductor integrated circuit
HITACHI LTD6 citations74
US5960266ASep 28, 1999
Process for manufacturing a quantum memory element device
HITACHI LTD9 citations74
US4577231AMar 18, 1986
High sensitivity solid-state imaging device
HITACHI LTD9 citations74
US6818914B2Nov 16, 2004
Semiconductor element and process for manufacturing the same
HITACHI LTD2 citations63
US5684734ANov 4, 1997
Semiconductor element and process for manufacturing the same
HITACHI LTD3 citations63
US7309892B2Dec 18, 2007
Semiconductor element and semiconductor memory device using the same
HITACHI LTD0 citations52
US6555882B2Apr 29, 2003
Semiconductor element and semiconductor memory device using the same
HITACHI LTD0 citations52
RENESAS TECH CORP
4 patentsUS6791882B2Sep 14, 2004
Nonvolatile semiconductor memory device
RENESAS TECH CORP253 citations99
US7372741B2May 13, 2008
Nonvolatile memory apparatus having a processor and plural memories one or more of which is a nonvolatile memory having circuitry which performs an erase operation and an erase verify operation when the processor specifies the erase operation mode to the nonvolatile memory
RENESAS TECH CORP9 citations92
US6747902B2Jun 8, 2004
Nonvolatile semiconductor memory apparatus
RENESAS TECH CORP10 citations82
US6845349B1Jan 18, 2005
Method for designing semiconductor integrated circuit and automatic designing device
RENESAS TECH CORP3 citations63