Inventor
TAKASE AKIHIKO
JP64 patents
⚠️ This page may combine multiple inventors who share the name “TAKASE AKIHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
47 patentsUS7046630B2May 16, 2006
Packet switching network, packet switching equipment and network management equipment
HITACHI LTD333 citations99
US6512745B1Jan 28, 2003
Packet switching network, packet switching equipment, and network management equipment
HITACHI LTD414 citations99
US5963555AOct 5, 1999
Router apparatus using ATM switch
HITACHI LTD137 citations99
US5838677ANov 17, 1998
Switching system having means for congestion control by monitoring packets in a shared buffer and by suppressing the reading of packets from input buffers
HITACHI LTD170 citations98
US5612959AMar 18, 1997
Multicast communications method
HITACHI LTD164 citations98
US5042027AAug 20, 1991
Communication network system and method of controlling a communication network
HITACHI LTD369 citations98
US6021128AFeb 1, 2000
Asynchronous transfer mode switching system
HITACHI LTD112 citations97
US6275494B1Aug 14, 2001
Packet switching system, packet switching network and packet switching method
HITACHI LTD63 citations96
US6046999AApr 4, 2000
Router apparatus using ATM switch
HITACHI LTD65 citations96
US5600630AFeb 4, 1997
Path changing system and method for use in ATM communication apparatus
HITACHI LTD230 citations96
US5510921AApr 23, 1996
Optical frequency division multiplexing network
HITACHI LTD72 citations96
US5394397AFeb 28, 1995
Shared buffer memory type ATM communication system and method with a broadcast facility
HITACHI LTD89 citations96
US5280475AJan 18, 1994
Traffic shaping method and circuit
HITACHI LTD83 citations96
US5768274AJun 16, 1998
Cell multiplexer having cell delineation function
HITACHI LTD53 citations95
US5570368AOct 29, 1996
Cell multiplexer having cell delineation function
HITACHI LTD89 citations95
US5926456AJul 20, 1999
Path changing system and method for use in ATM communication apparatus
HITACHI LTD80 citations94
US5315581AMay 24, 1994
Hit-less protection switching method and apparatus for ATM transmission lines
HITACHI LTD24 citations93
US5283782AFeb 1, 1994
System switching method and apparatus without loss of signal in cell switching system of asynchronous transfer mode
HITACHI LTD28 citations93
US5271005ADec 14, 1993
Method of modifying virtual path capacity
HITACHI LTD29 citations93
US7463633B2Dec 9, 2008
Packet switching system, packet switching network and packet switching method
HITACHI LTD32 citations92
US6424662B1Jul 23, 2002
Router apparatus using ATM switch
HITACHI LTD16 citations92
US6185212B1Feb 6, 2001
ATM cell processing apparatus
HITACHI LTD21 citations92
US5568468AOct 22, 1996
Usage parameter control apparatus for performing a plurality of conformance checking operations at high speed
HITACHI LTD19 citations92
US5321540AJun 14, 1994
Optical frequency division multiplexing network
HITACHI LTD20 citations92
US5140453AAug 18, 1992
Optical receiving method utilizing polarization diversity and apparatus for carrying out the same
HITACHI LTD32 citations92
US4880289ANov 14, 1989
Two-way optical transmission system
HITACHI LTD50 citations92
US5828654AOct 27, 1998
ATM cell policing method and apparatus
HITACHI LTD33 citations91
US5694554ADec 2, 1997
ATM interface and shaping method
HITACHI LTD46 citations90
US6034954AMar 7, 2000
Multiplexing apparatus for transit of signals between service provided by low-speed transmission path and ATM service provided by high-speed transmission path
HITACHI LTD24 citations89
US5155487AOct 13, 1992
Cell delineation method and cell delineation circuit
HITACHI LTD34 citations89
US7024487B2Apr 4, 2006
Assistant server and path connection control method for service provider's network
HITACHI LTD30 citations86
US9281995B2Mar 8, 2016
Virtual network and management method of virtual network
HITACHI LTD8 citations84
US6463066B2Oct 8, 2002
ATM switch
HITACHI LTD14 citations83
US6619865B1Sep 16, 2003
Optical frequency division multiplexing network
HITACHI LTD11 citations82
US5953317ASep 14, 1999
Policing circuit and policing method
HITACHI LTD16 citations82
US5420859AMay 30, 1995
Method of modifying virtual path capacity
HITACHI LTD16 citations82
US4967410AOct 30, 1990
Method of multiplexing digital signals and apparatus therefor
HITACHI LTD20 citations82
US4813058AMar 14, 1989
FSK signal demodulator
HITACHI LTD19 citations82
US6980553B2Dec 27, 2005
Router apparatus using ATM switch
HITACHI LTD11 citations74
US6526045B2Feb 25, 2003
IP switch, interface circuit and ATM switch used for IP switch, and IP switch network system
HITACHI LTD8 citations74
US6385171B1May 7, 2002
Router apparatus using ATM switch
HITACHI LTD10 citations74
US6304555B1Oct 16, 2001
IP switch, interface circuit and ATM switch used for IP switch, and IP switch network system
HITACHI LTD6 citations74
US5801864ASep 1, 1998
Optical frequency division multiplexing network
HITACHI LTD9 citations74
US5164937ANov 17, 1992
Packet concentrator and packet switching system
HITACHI LTD15 citations74
US5023604AJun 11, 1991
Communication system
HITACHI LTD13 citations74
US4970719ANov 13, 1990
Digital signal multiplexing apparatus
HITACHI LTD9 citations74
US6249524B1Jun 19, 2001
Cell buffer memory for a large capacity and high throughput ATM switch
HITACHI LTD14 citations73
(unassigned)
1 patentTOKAI RIKA CO LTD
1 patentBABA TAKASHIGE
1 patentShowing the top 50 of 64 patents by PatentIndex Score.