Inventor
TAKEKUMA TOSHITSUGU
JP29 patents
⚠️ This page may combine multiple inventors who share the name “TAKEKUMA TOSHITSUGU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
27 patentsUS6580295B2Jun 17, 2003
Signal transmission system
HITACHI LTD221 citations99
US6125419ASep 26, 2000
Bus system, printed circuit board, signal transmission line, series circuit and memory module
HITACHI LTD228 citations99
US6034878AMar 7, 2000
Source-clock-synchronized memory system and memory unit
HITACHI LTD537 citations99
US6211703B1Apr 3, 2001
Signal transmission system
HITACHI LTD46 citations96
US6088829AJul 11, 2000
Synchronous data transfer system
HITACHI LTD60 citations96
US5568063AOct 22, 1996
Signal transmitting device, circuit block and integrated circuit suited to fast signal transmission
HITACHI LTD21 citations96
US5548226AAug 20, 1996
Fast transmission line implemented with receiver, driver, terminator and IC arrangements
HITACHI LTD49 citations96
US5872471AFeb 16, 1999
Simultaneous bidirectional transmission circuit
HITACHI LTD62 citations95
US5933623AAug 3, 1999
Synchronous data transfer system
HITACHI LTD34 citations92
US5668834ASep 16, 1997
Signal transmitting device suitable for fast signal transmission including an arrangement to reduce signal amplitude in a second stage transmission line
HITACHI LTD24 citations92
US5441834AAug 15, 1995
Process for fabricating phase shift mask and process of semiconductor integrated circuit device
HITACHI LTD36 citations92
US5410507AApr 25, 1995
Special mode control method for dynamic random access memory
HITACHI LTD50 citations92
US5564033AOct 8, 1996
Disk array system using detachable memory medium
HITACHI LTD22 citations89
US5818253AOct 6, 1998
Signal transmitting device, circuit block and integrated circuit suited to fast signal transmission
HITACHI LTD9 citations82
US5627481AMay 6, 1997
Fast transmission line implemented with receiver, driver, terminator and IC arrangements
HITACHI LTD16 citations82
US5565285AOct 15, 1996
Method of making mask pattern data and process for manufacturing the mask
HITACHI LTD14 citations82
US7372292B2May 13, 2008
Signal transmitting device suited to fast signal transmission
HITACHI LTD4 citations74
US7015717B2Mar 21, 2006
Signal transmitting device suited to fast signal transmission
HITACHI LTD2 citations74
US6768346B2Jul 27, 2004
Signal transmission system
HITACHI LTD5 citations74
US6441639B1Aug 27, 2002
Circuit module connected to a transmission line including arrangement to suppress reflections at a branch point of the transmission line
HITACHI LTD3 citations74
US6420900B2Jul 16, 2002
Semiconductor memory
HITACHI LTD2 citations74
US6172517B1Jan 9, 2001
Signal transmitting device, circuit block and integrated circuit suited to fast signal transmission
HITACHI LTD3 citations74
US5458998AOct 17, 1995
Method of making mask pattern data and process for manufacturing the mask
HITACHI LTD10 citations74
US5677092AOct 14, 1997
Process for fabricating phase shift mask and process of semiconductor integrated circuit device
HITACHI LTD6 citations73
US5634042AMay 27, 1997
Data transfer apparatus that compensates for differential signal delays
HITACHI LTD13 citations71
US7911224B2Mar 22, 2011
Signal transmitting device suited to fast signal transmission
HITACHI LTD0 citations63
US5736277AApr 7, 1998
Method of making mask pattern data and process for manufacturing the mask
HITACHI LTD0 citations52