Inventor
ISHII TOMOYUKI
JP65 patents
⚠️ This page may combine multiple inventors who share the name “ISHII TOMOYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
29 patentsUS6839260B2Jan 4, 2005
Semiconductor device having different types of memory cell arrays stacked in a vertical direction
HITACHI LTD108 citations99
US6576943B1Jun 10, 2003
Semiconductor device for reducing leak currents and controlling a threshold voltage and using a thin channel structure
HITACHI LTD96 citations98
US7336519B2Feb 26, 2008
Stacked integrated circuit device/data processor device having a flash memory formed on top of a buffer memory
HITACHI LTD44 citations96
US7177187B2Feb 13, 2007
Semiconductor device having a nonvolatile memory array and an authentication circuit arranged in a vertical stack configuration
HITACHI LTD37 citations96
US6949782B2Sep 27, 2005
Semiconductor memories
HITACHI LTD49 citations96
US6876023B2Apr 5, 2005
Gain cell type non-volatile memory having charge accumulating region charged or discharged by channel current from a thin film channel path
HITACHI LTD63 citations96
US6787835B2Sep 7, 2004
Semiconductor memories
HITACHI LTD63 citations96
US6646300B2Nov 11, 2003
Semiconductor memory device
HITACHI LTD40 citations96
US6040605AMar 21, 2000
Semiconductor memory device
HITACHI LTD85 citations96
US5600163AFeb 4, 1997
Semiconductor element and semiconductor memory device using the same
HITACHI LTD32 citations96
US7826266B2Nov 2, 2010
Semiconductor device having global and local data lines coupled to memory mats
HITACHI LTD30 citations93
US7570516B2Aug 4, 2009
Three-dimensional semiconductor memory device having a first and second charge accumulation region
HITACHI LTD26 citations93
US7009243B2Mar 7, 2006
Semiconductor memory device
HITACHI LTD35 citations93
US6825525B2Nov 30, 2004
Semiconductor memory device
HITACHI LTD22 citations93
US6473333B1Oct 29, 2002
Storage circuit with layered structure element
HITACHI LTD20 citations93
US6194759B1Feb 27, 2001
Semiconductor memory device
HITACHI LTD21 citations93
US7045854B2May 16, 2006
Non-volatile semiconductor memory
HITACHI LTD19 citations92
US6849895B2Feb 1, 2005
Semiconductor non-volatile memory
HITACHI LTD17 citations92
US6291852B1Sep 18, 2001
Semiconductor element and semiconductor memory device using the same
HITACHI LTD9 citations82
US7294880B2Nov 13, 2007
Semiconductor non-volatile memory cell with a plurality of charge storage regions
HITACHI LTD7 citations74
US7061053B2Jun 13, 2006
Semiconductor element and semiconductor memory device using the same
HITACHI LTD3 citations74
US6815763B2Nov 9, 2004
Semiconductor memory element, semiconductor device and control method thereof
HITACHI LTD6 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
US6337293B1Jan 8, 2002
Method of forming a quantum memory element having a film of amorphous silicon
HITACHI LTD4 citations74
US6104056AAug 15, 2000
Semiconductor element and semiconductor memory device using the same
HITACHI LTD5 citations74
US5960266ASep 28, 1999
Process for manufacturing a quantum memory element device
HITACHI LTD9 citations74
US9728060B2Aug 8, 2017
Monitoring system
HITACHI LTD2 citations72
US10671619B2Jun 2, 2020
Information processing system and information processing method
HITACHI LTD2 citations65
RENESAS TECH CORP
6 patentsUS7468901B2Dec 23, 2008
Semiconductor memory device
RENESAS TECH CORP72 citations98
US7772053B2Aug 10, 2010
Method for fabrication of semiconductor device
RENESAS TECH CORP48 citations94
US7015540B2Mar 21, 2006
Semiconductor memory device
RENESAS TECH CORP23 citations93
US7375399B2May 20, 2008
Semiconductor memory device
RENESAS TECH CORP22 citations92
US7078762B2Jul 18, 2006
Semiconductor memory device and method for producing the same
RENESAS TECH CORP23 citations92
US7449747B2Nov 11, 2008
Semiconductor memory device
RENESAS TECH CORP4 citations63
FUJITSU LTD
4 patentsUS6531995B2Mar 11, 2003
Plasma display panel, method of driving same and plasma display apparatus
FUJITSU LTD44 citations96
US7322012B2Jan 22, 2008
Display program, display method and display device
FUJITSU LTD19 citations84
US6965359B2Nov 15, 2005
Method of driving plasma display panel by applying discharge sustaining pulses
FUJITSU LTD10 citations74
US5347545ASep 13, 1994
Multi-terminal communication equipment for smoothly and correctly communicating data between a plurality of terminal equipments
FUJITSU LTD14 citations72
JIDOSHA KIKI CO
4 patentsUS6132012AOct 17, 2000
Abnormal condition detecting apparatus and safety apparatus for hydraulic brake boosting system
JIDOSHA KIKI CO54 citations96
US5444622AAug 22, 1995
Method of controlling electric power steering apparatus
JIDOSHA KIKI CO24 citations92
US5150021ASep 22, 1992
Method of controlling electric power steering apparatus
JIDOSHA KIKI CO40 citations91
US6135577AOct 24, 2000
Pump operation control apparatus for hydraulic brake boosting system
JIDOSHA KIKI CO17 citations84
RENESAS ELECTRONICS CORP
3 patentsFUJIITSU LTD
1 patentYAZAKI CORP
1 patentOSABE TARO
1 patentNORITSU KOKI CO LTD
1 patentShowing the top 50 of 65 patents by PatentIndex Score.