Inventor
KUMAGAI TAKASHI
JP111 patents
⚠️ This page may combine multiple inventors who share the name “KUMAGAI TAKASHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SEIKO EPSON CORP
26 patentsUS6617694B2Sep 9, 2003
Semiconductor chip, semiconductor device, methods of fabricating thereof, circuit board and electronic device
SEIKO EPSON CORP184 citations97
US6713886B2Mar 30, 2004
Semiconductor device
SEIKO EPSON CORP29 citations93
US6657243B2Dec 2, 2003
Semiconductor device with SRAM section including a plurality of memory cells
SEIKO EPSON CORP30 citations93
US6469356B2Oct 22, 2002
Semiconductor memory device having different distances between gate electrode layers
SEIKO EPSON CORP22 citations93
US6329693B1Dec 11, 2001
Semiconductor memory device and method of manufacturing the same
SEIKO EPSON CORP31 citations93
US6320234B1Nov 20, 2001
Semiconductor memory device and method for manufacturing the same
SEIKO EPSON CORP27 citations93
US6081016AJun 27, 2000
CMOS device with improved wiring density
SEIKO EPSON CORP18 citations93
US7522441B2Apr 21, 2009
Integrated circuit device and electronic instrument
SEIKO EPSON CORP46 citations92
US7411861B2Aug 12, 2008
Integrated circuit device and electronic instrument
SEIKO EPSON CORP26 citations92
US7391668B2Jun 24, 2008
Integrated circuit device and electronic device
SEIKO EPSON CORP48 citations91
US6044028AMar 28, 2000
Semiconductor storage device and electronic equipment using the same
SEIKO EPSON CORP33 citations91
US5875133AFeb 23, 1999
Semiconductor memory device and a method for stepping up its word lines
SEIKO EPSON CORP28 citations91
US8054710B2Nov 8, 2011
Integrated circuit device and electronic instrument
SEIKO EPSON CORP9 citations84
US7471573B2Dec 30, 2008
Integrated circuit device and electronic instrument
SEIKO EPSON CORP13 citations84
US7411804B2Aug 12, 2008
Integrated circuit device and electronic instrument
SEIKO EPSON CORP17 citations84
US6534864B1Mar 18, 2003
Semiconductor memory device and method of fabricating the same
SEIKO EPSON CORP16 citations84
US6500705B2Dec 31, 2002
Semiconductor memory device and method of manufacturing the same
SEIKO EPSON CORP15 citations84
US6462385B1Oct 8, 2002
Semiconductor memory device with latch-up suppression
SEIKO EPSON CORP18 citations84
US6300229B1Oct 9, 2001
Semiconductor device and method of manufacturing the same
SEIKO EPSON CORP15 citations84
US6018256AJan 25, 2000
Output circuit and electronic apparatus using the same
SEIKO EPSON CORP18 citations83
US6507124B2Jan 14, 2003
Semiconductor memory device
SEIKO EPSON CORP10 citations74
US6469400B2Oct 22, 2002
Semiconductor memory device
SEIKO EPSON CORP7 citations74
US6243286B1Jun 5, 2001
Semiconductor memory device and method of fabricating the same
SEIKO EPSON CORP12 citations74
US5563821AOct 8, 1996
Semiconductor memory device having a program circuit for selecting device type
SEIKO EPSON CORP9 citations72
US7764278B2Jul 27, 2010
Integrated circuit device and electronic instrument
SEIKO EPSON CORP5 citations63
US7755587B2Jul 13, 2010
Integrated circuit device and electronic instrument
SEIKO EPSON CORP3 citations63
SONY CORP
7 patentsUS6449226B1Sep 10, 2002
Recording and playback apparatus and method, terminal device, transmitting/receiving method, and storage medium
SONY CORP167 citations99
US6512722B2Jan 28, 2003
Recording and playback apparatus and method, terminal device, transmitting/receiving method, and storage medium
SONY CORP46 citations96
US7126770B1Oct 24, 2006
Data processing system having data reproduction independent of data processing
SONY CORP41 citations95
US6996563B2Feb 7, 2006
Communication system, communication method, distribution apparatus, distribution method and terminal apparatus
SONY CORP25 citations92
US7263513B2Aug 28, 2007
Communication system, communication method, distribution apparatus, distribution method and terminal apparatus
SONY CORP7 citations74
US7532419B2May 12, 2009
Apparatus and method for writing and reproducing data
SONY CORP4 citations72
US7711698B2May 4, 2010
Communication system, communication method, distribution apparatus, distribution method and terminal apparatus
SONY CORP2 citations63
MITSUBISHI ELECTRIC CORP
6 patentsUS6304475B1Oct 16, 2001
Switching power supply for gas laser
MITSUBISHI ELECTRIC CORP24 citations93
US6181071B1Jan 30, 2001
Display panel apparatus having reduced capacitive coupling
MITSUBISHI ELECTRIC CORP32 citations91
US7719865B2May 18, 2010
Power conversion apparatus
MITSUBISHI ELECTRIC CORP9 citations84
US11350517B2May 31, 2022
Circuit device and power conversion device
MITSUBISHI ELECTRIC CORP6 citations73
US11658089B2May 23, 2023
Semiconductor device
MITSUBISHI ELECTRIC CORP2 citations72
US9960697B2May 1, 2018
Insulation type step-down converter
MITSUBISHI ELECTRIC CORP2 citations71
HITACHI LTD
4 patentsUS5067007ANov 19, 1991
Semiconductor device having leads for mounting to a surface of a printed circuit board
HITACHI LTD360 citations98
US7522592B2Apr 21, 2009
Packet transfer unit
HITACHI LTD11 citations84
US4774687ASep 27, 1988
Advanced store-in system for a hierarchy memory device
HITACHI LTD17 citations73
US4527253AJul 2, 1985
Data searching apparatus
HITACHI LTD9 citations69
APPLIED MATERIALS INC
2 patentsSUMITOMO CHEMICAL CO
1 patentTAKESHITA MIYUKI
1 patentIWATA AKIHIKO
1 patentSAIKI TAKAYUKI
1 patentKUMAGAI TAKASHI
1 patentShowing the top 50 of 111 patents by PatentIndex Score.