Inventor
OKAZAWA KOICHI
JP55 patents
Patents
50 patentsUS6035414AMar 7, 2000
Reliability of crossbar switches in an information processing system
HITACHI LTD149 citations99
US5774656AJun 30, 1998
Information processing system and method and service supplying method for use within a network
HITACHI LTD103 citations99
US5671371ASep 23, 1997
Bus control system
HITACHI LTD104 citations99
US6094674AJul 25, 2000
Information processing system and information processing method and quality of service supplying method for use with the system
HITACHI LTD80 citations97
US6378021B1Apr 23, 2002
Switch control method and apparatus in a system having a plurality of processors
HITACHI LTD77 citations96
US6098136AAug 1, 2000
Multiple bus system using a data transfer unit
HITACHI LTD23 citations96
US6088770AJul 11, 2000
Shared memory multiprocessor performing cache coherency
HITACHI LTD67 citations96
US6006302ADec 21, 1999
Multiple bus system using a data transfer unit
HITACHI LTD25 citations96
US5668956ASep 16, 1997
Bus system for use with information processing apparatus
HITACHI LTD69 citations96
US5506973AApr 9, 1996
Bus system for use with information processing apparatus
HITACHI LTD63 citations96
US5483642AJan 9, 1996
Bus system for use with information processing apparatus
HITACHI LTD59 citations96
US7177970B2Feb 13, 2007
Bus control system
HITACHI LTD17 citations93
US6519640B2Feb 11, 2003
Accessible network of performance index tables
HITACHI LTD22 citations93
US6519667B2Feb 11, 2003
Bus control system
HITACHI LTD15 citations93
US6131169AOct 10, 2000
Reliability of crossbar switches in an information processing system
HITACHI LTD25 citations93
US5941973AAug 24, 1999
Bus control system incorporating the coupling of two split-transaction busses of different hierarchy
HITACHI LTD19 citations93
US5881255AMar 9, 1999
Bus control system incorporating the coupling of two split-transaction busses of different hierarchy
HITACHI LTD17 citations93
US6907489B2Jun 14, 2005
Bus system for use with information processing apparatus
HITACHI LTD16 citations92
US6810461B2Oct 26, 2004
Bus system for use with information processing apparatus
HITACHI LTD20 citations92
US6546471B1Apr 8, 2003
Shared memory multiprocessor performing cache coherency
HITACHI LTD34 citations92
US6334164B1Dec 25, 2001
Bus system for use with information processing apparatus
HITACHI LTD20 citations92
US6021455AFeb 1, 2000
Method and system for arbitrating a bus according to the status of a buffer and destination information
HITACHI LTD17 citations92
US5889971AMar 30, 1999
Bus system for use with information processing apparatus
HITACHI LTD17 citations92
US5751976AMay 12, 1998
Bus system for use with information processing apparatus
HITACHI LTD20 citations92
US5749093AMay 5, 1998
Enhanced information processing system using cache memory indication during DMA accessing
HITACHI LTD20 citations92
US5428753AJun 27, 1995
Method for controlling a bus to progress transfer cycles without inserting a cycle for acknowledgment
HITACHI LTD24 citations92
US5381544AJan 10, 1995
Copyback memory system and cache memory controller which permits access while error recovery operations are performed
HITACHI LTD20 citations92
US5034733AJul 23, 1991
Method and apparatus for rotating dots data
HITACHI LTD40 citations91
US6748463B1Jun 8, 2004
Information processor with snoop suppressing function, memory controller, and direct memory access processing method
HITACHI LTD32 citations88
US7152130B2Dec 19, 2006
Bus system for use with information processing apparatus
HITACHI LTD8 citations82
US6370577B1Apr 9, 2002
Information processing system having a network and a directory which may be referenced to supply information to an apparatus
HITACHI LTD10 citations82
US6195719B1Feb 27, 2001
Bus system for use with information processing apparatus
HITACHI LTD10 citations82
US6128688AOct 3, 2000
Bus control system
HITACHI LTD8 citations82
US5935231AAug 10, 1999
Bus system for use with information processing apparatus
HITACHI LTD15 citations82
US5657458AAug 12, 1997
Method for controlling a bus to progress transfer cycles without inserting a cycle for acknowledgment
HITACHI LTD10 citations82
US7577781B2Aug 18, 2009
Bus system for use with information processing apparatus
HITACHI LTD3 citations74
US6868446B2Mar 15, 2005
Data processing apparatus and network system that outputs quality of service information to a user
HITACHI LTD4 citations74
US6341323B2Jan 22, 2002
Information processing system
HITACHI LTD3 citations74
US6219738B1Apr 17, 2001
Information processing system
HITACHI LTD5 citations74
US5754802AMay 19, 1998
Increasing data transfer efficiency for a read operation in a non-split transaction bus environment by substituting a write operation for the read operation
HITACHI LTD10 citations74
US5048101ASep 10, 1991
Electronic filing device
HITACHI LTD16 citations74
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
US6219735B1Apr 17, 2001
Method for controlling a bus to progress transfer cycles without inserting a cycle for acknowledgement
HITACHI LTD9 citations73
US6047345AApr 4, 2000
Method for controlling a bus to progress transfer cycles without inserting a cycle for acknowledgment
HITACHI LTD6 citations73
US5774679AJun 30, 1998
Method for controlling a bus to progress transfer cycles without inserting a cycle for acknowledgement
HITACHI LTD8 citations73
US5604874AFeb 18, 1997
Method for controlling a bus to progress transfer cycles without inserting a cycle for acknowledgment
HITACHI LTD7 citations73
US5590290ADec 31, 1996
Method for controlling a bus to progress transfer cycles without inserting a cycle for acknowledgement
HITACHI LTD6 citations73
US5276818AJan 4, 1994
Bus system for information processing system and method of controlling the same
HITACHI LTD17 citations73
US4943857AJul 24, 1990
Synchronizing circuit for an external signal and an internal sampling clock signal
HITACHI LTD16 citations71
Showing the top 50 of 55 patents by PatentIndex Score.