Inventor
UMEMURA MASAYA
JP19 patents
⚠️ This page may combine multiple inventors who share the name “UMEMURA MASAYA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
18 patentsUS6125419ASep 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
US6088829AJul 11, 2000
Synchronous data transfer system
HITACHI LTD60 citations96
US7257202B2Aug 14, 2007
Telephone communication system
HITACHI LTD49 citations92
US6600790B1Jul 29, 2003
Gap-coupling bus system
HITACHI LTD21 citations92
US6021455AFeb 1, 2000
Method and system for arbitrating a bus according to the status of a buffer and destination information
HITACHI LTD17 citations92
US5933623AAug 3, 1999
Synchronous data transfer system
HITACHI LTD34 citations92
US5462442AOct 31, 1995
Module for information processing apparatus using stacked printed circuit boards and connector for stacking printed circuit boards
HITACHI LTD23 citations92
US6438708B1Aug 20, 2002
Information processing apparatus that can hold internal information
HITACHI LTD24 citations90
US6748463B1Jun 8, 2004
Information processor with snoop suppressing function, memory controller, and direct memory access processing method
HITACHI LTD32 citations88
US7283671B2Oct 16, 2007
Communications terminal
HITACHI LTD17 citations84
US6584530B2Jun 24, 2003
Information processing system, bus arbiter, and bus controlling method
HITACHI LTD6 citations73
US6425037B1Jul 23, 2002
Information processing system, bus arbiter, and bus controlling method
HITACHI LTD7 citations73
US6523133B2Feb 18, 2003
Information processing apparatus that can hold internal information
HITACHI LTD11 citations71
US7356485B2Apr 8, 2008
Service providing system
HITACHI LTD3 citations63
US7206561B2Apr 17, 2007
Radio equipment
HITACHI LTD2 citations63
US7584431B2Sep 1, 2009
Communication system and terminal units connected thereto
HITACHI LTD3 citations60
US7904046B2Mar 8, 2011
Radio equipment having an attenuator between antenna and radio module
HITACHI LTD0 citations52