Inventor
YOSHIDA KEIICHI
JP82 patents
⚠️ This page may combine multiple inventors who share the name “YOSHIDA KEIICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
15 patentsUS6496418B2Dec 17, 2002
Semiconductor integrated circuit and data processing system
HITACHI LTD89 citations99
US6285597B2Sep 4, 2001
Semiconductor integrated circuit and data processing system
HITACHI LTD94 citations99
US6091640AJul 18, 2000
Semiconductor integrated circuit with multiple write operation modes
HITACHI LTD129 citations98
US6567315B2May 20, 2003
Nonvolatile memory and method of programming the same memory
HITACHI LTD52 citations96
US6459621B1Oct 1, 2002
Semiconductor integrated circuit and data processing system
HITACHI LTD55 citations96
US6134148AOct 17, 2000
Semiconductor integrated circuit and data processing system
HITACHI LTD78 citations96
US5959882ASep 28, 1999
Nonvolatile semiconductor memory device and data writing method therefor
HITACHI LTD52 citations96
US5473570ADec 5, 1995
Semiconductor memory device having an improved sense amplifier arrangement
HITACHI LTD41 citations96
US6501682B2Dec 31, 2002
Nonvolatile semiconductor memory device
HITACHI LTD24 citations93
US6320785B1Nov 20, 2001
Nonvolatile semiconductor memory device and data writing method therefor
HITACHI LTD17 citations93
US6163485ADec 19, 2000
Semiconductor integrated circuit data processing system
HITACHI LTD29 citations93
US5532971AJul 2, 1996
Nonvolatile semiconductor memory having enhanced speed for erasing and programming
HITACHI LTD36 citations93
US6735121B2May 11, 2004
Nonvolatile memory system having status register for rewrite control
HITACHI LTD18 citations84
US6525960B2Feb 25, 2003
Nonvolatile semiconductor memory device including correction of erratic memory cell data
HITACHI LTD11 citations74
US5654916AAug 5, 1997
Semiconductor memory device having an improved sense amplifier arrangement
HITACHI LTD12 citations74
SEIKAGAKU KOGYO CO LTD
7 patentsUS6159954ADec 12, 2000
Keratan sulfate oligosaccharide fraction and pharmaceutical containing the same
SEIKAGAKU KOGYO CO LTD18 citations92
US5290695AMar 1, 1994
Heparitinase, process for producing the same and bacteria producing the same
SEIKAGAKU KOGYO CO LTD42 citations91
US5198355AMar 30, 1993
Purification of glycosaminoglycan degrading enzymes with a sulfated polysaccharide
SEIKAGAKU KOGYO CO LTD38 citations89
US6545136B1Apr 8, 2003
Process for producing desulfated polysaccharide, and desulfated heparin
SEIKAGAKU KOGYO CO LTD11 citations73
US6140481AOct 31, 2000
Process for producing desulfated polysaccharide, and desulfated heparin
SEIKAGAKU KOGYO CO LTD8 citations73
US6132994AOct 17, 2000
Lactosamine oligosaccharides and method for producing the same
SEIKAGAKU KOGYO CO LTD15 citations73
US5939403AAug 17, 1999
Keratan sulfate oligosaccharide fraction and pharmaceutical containing the same
SEIKAGAKU KOGYO CO LTD10 citations73
RICOH KK
6 patentsUS7463845B2Dec 9, 2008
Charging device having a first and second pressure with a cleaning member, and process cartridge and image forming apparatus including the charging device
RICOH KK20 citations93
US7599650B2Oct 6, 2009
Developer bearing member, developing device, process cartridge and image forming apparatus
RICOH KK25 citations92
US7826786B2Nov 2, 2010
Image forming apparatus, lubricant applying device, transfer device, process cartridge, and toner
RICOH KK17 citations84
US7463852B2Dec 9, 2008
Image forming apparatus having a developer conveying system and associated methodology
RICOH KK12 citations84
US7315723B2Jan 1, 2008
Method and apparatus for image forming capable of effectively transporting toner
RICOH KK10 citations84
US7209698B2Apr 24, 2007
Method and apparatus for image forming capable of using minuscule spherical particles of toner, a process cartridge in use for the apparatus and a toner used in the image forming for obtaining an image with a high thin line reproducibility
RICOH KK13 citations83
RENESAS TECH CORP
5 patentsUS6775185B2Aug 10, 2004
Nonvolatile semiconductor memory
RENESAS TECH CORP137 citations97
US7581058B2Aug 25, 2009
Non-volatile memory having multiple erase operations
RENESAS TECH CORP16 citations92
US7290109B2Oct 30, 2007
Memory system and memory card
RENESAS TECH CORP47 citations92
US7334080B2Feb 19, 2008
Nonvolatile memory with independent access capability to associated buffer
RENESAS TECH CORP15 citations84
US7085189B2Aug 1, 2006
Nonvolatile semiconductor storage device
RENESAS TECH CORP9 citations74
SUMITOMO WIRING SYSTEMS
4 patentsHITACHI ULSI SYS CO LTD
3 patentsUS6958940B2Oct 25, 2005
Nonvolatile semiconductor memory device capable of realizing optimized erasing operation in a memory array
HITACHI ULSI SYS CO LTD23 citations92
US7002848B2Feb 21, 2006
Nonvolatile semiconductor memory device
HITACHI ULSI SYS CO LTD16 citations84
US6930924B2Aug 16, 2005
Nonvolatile memory and method of programming the same memory
HITACHI ULSI SYS CO LTD13 citations84
MATSUSHITA ELECTRIC WORKS LTD
2 patentsOSAKA VACUUM LTD
2 patentsYOSHIDA KEIICHI
2 patentsKONAMI CORP
1 patentKONAMI CO LTD
1 patentRICOH CO LTD
1 patentHITACHI ULSI ENG CORP
1 patentShowing the top 50 of 82 patents by PatentIndex Score.