Kenichi Kawarai

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Communication apparatus and communication controlling method in rin...
- Patent number 9,166,815
- Issue date Oct 20, 2015
- Fujitsu Telecom Networks Limited
- Kenichi Kawarai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Path protection method and layer-2 switch
- Patent number 8,199,639
- Issue date Jun 12, 2012
- Fujitsu Limited
- Masami Doukai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for keeping track of virtual LAN topology in n...
- Patent number 8,027,262
- Issue date Sep 27, 2011
- Fujitsu Limited
- Kenichi Kawarai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Fault detection device
- Patent number 7,957,267
- Issue date Jun 7, 2011
- Fujitsu Limited
- Yasushi Sasagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Packet repeater
- Patent number 7,636,299
- Issue date Dec 22, 2009
- Fujitsu Limited
- Akihiro Asa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Protection that automatic and speedily restore of Ethernet ring net...
- Patent number 7,440,397
- Issue date Oct 21, 2008
- Fujitsu Limited
- Osamu Tsurumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Input line interface device and packet communication device
- Patent number 7,366,165
- Issue date Apr 29, 2008
- Fujitsu Limited
- Kenichi Kawarai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Packet multiplexing control method and a concentrator using the same
- Patent number 7,304,946
- Issue date Dec 4, 2007
- Fujitsu Limited
- Kenichi Kawarai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Packet switch device
- Patent number 7,227,861
- Issue date Jun 5, 2007
- Fujitsu Limited
- Hiroshi Tomonaga
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Packet switch
- Patent number 7,058,751
- Issue date Jun 6, 2006
- Fujitsu Limited
- Kenichi Kawarai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Scheduling control system and switch
- Patent number 7,046,685
- Issue date May 16, 2006
- Fujitsu Limited
- Naoki Matsuoka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Packet switch
- Patent number 7,023,865
- Issue date Apr 4, 2006
- Fujitsu Limited
- Naoki Matsuoka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Packet switch that converts variable length packets to fixed length...
- Patent number 7,016,366
- Issue date Mar 21, 2006
- Fujitsu Limited
- Kenichi Kawarai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Packet Switch
- Patent number 6,963,577
- Issue date Nov 8, 2005
- Fujitsu Limited
- Hiroshi Tomonaga
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Packet switch device and scheduling control method
- Patent number 6,920,145
- Issue date Jul 19, 2005
- Fujitsu Limited
- Naoki Matsuoka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Packet insertion interval control system and packet insertion inter...
- Patent number 6,771,600
- Issue date Aug 3, 2004
- Fujitsu Limited
- Kenichi Kawarai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Bandwidth control apparatus
- Patent number 6,687,225
- Issue date Feb 3, 2004
- Fujitsu Limited
- Kenichi Kawarai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Feedback control method and device in ATM switching system
- Patent number 6,671,257
- Issue date Dec 30, 2003
- Fujitsu Limited
- Toshio Soumiya
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Feedback control method and device in ATM switching system
- Patent number 6,094,418
- Issue date Jul 25, 2000
- Fujitsu Limited
- Toshio Soumiya
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
COMMUNICATION APPARATUS AND COMMUNICATION CONTROLLING METHOD IN RIN...
- Publication number 20110064088
- Publication date Mar 17, 2011
- FUJITSU TELECOM NETWORKS LIMITED
- Kenichi Kawarai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Path protection method and layer-2 switch
- Publication number 20070086333
- Publication date Apr 19, 2007
- FUJITSU LIMITED
- Masami Doukai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Packet repeater
- Publication number 20060215544
- Publication date Sep 28, 2006
- FUJITSU LIMITED
- Akihiro Asa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Communication apparatus
- Publication number 20060198315
- Publication date Sep 7, 2006
- FUJITSU LIMITED
- Yasushi Sasagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Fault detection device
- Publication number 20060182036
- Publication date Aug 17, 2006
- FUJITSU LIMITED
- Yasushi Sasagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and apparatus for keeping track of virtual LAN topology in n...
- Publication number 20050265356
- Publication date Dec 1, 2005
- FUJITSU LIMITED
- Kenichi Kawarai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Protection that automatic and speedily restore of ethernet ring net...
- Publication number 20050207348
- Publication date Sep 22, 2005
- Osamu Tsurumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Bridge apparatus and logical queue control method
- Publication number 20050175022
- Publication date Aug 11, 2005
- FUJITSU LIMITED
- Kazuto Nishimura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Packet switch
- Publication number 20030147398
- Publication date Aug 7, 2003
- Naoki Matsuoka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Packet multiplexing control method and a concentrator using the same
- Publication number 20030081602
- Publication date May 1, 2003
- Kenichi Kawarai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Input line interface device and packet communication device
- Publication number 20020122424
- Publication date Sep 5, 2002
- Kenichi Kawarai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Scheduling method and scheduling apparatus
- Publication number 20020110129
- Publication date Aug 15, 2002
- Naoki Matsuoka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Packet switch
- Publication number 20020099900
- Publication date Jul 25, 2002
- Kenichi Kawarai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Packet switch
- Publication number 20020080796
- Publication date Jun 27, 2002
- Naoki Matsuoka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Packet switch device
- Publication number 20020024949
- Publication date Feb 28, 2002
- Hiroshi Tomonaga
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Buffer unit and switching apparatus
- Publication number 20020009082
- Publication date Jan 24, 2002
- Naoki Matsuoka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Packet switch, scheduling device, drop control circuit, multicast c...
- Publication number 20010033581
- Publication date Oct 25, 2001
- Kenichi Kawarai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Packet insertion interval control system and packet insertion inter...
- Publication number 20010015957
- Publication date Aug 23, 2001
- FUJITSU LIMITED
- Kenichi Kawarai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Packet switch device and scheduling control method
- Publication number 20010007562
- Publication date Jul 12, 2001
- FUJITSU LIMITED
- Naoki Matsuoka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Kenichi Kawarai

Person

Patents Grantslast 30 patents

Communication apparatus and communication controlling method in rin...

Path protection method and layer-2 switch

Method and apparatus for keeping track of virtual LAN topology in n...

Fault detection device

Packet repeater

Protection that automatic and speedily restore of Ethernet ring net...

Input line interface device and packet communication device

Packet multiplexing control method and a concentrator using the same

Packet switch device

Packet switch

Scheduling control system and switch

Packet switch

Packet switch that converts variable length packets to fixed length...

Packet Switch

Packet switch device and scheduling control method

Packet insertion interval control system and packet insertion inter...

Bandwidth control apparatus

Feedback control method and device in ATM switching system

Feedback control method and device in ATM switching system

Patents Applicationslast 30 patents

COMMUNICATION APPARATUS AND COMMUNICATION CONTROLLING METHOD IN RIN...

Path protection method and layer-2 switch

Packet repeater

Communication apparatus

Fault detection device

Method and apparatus for keeping track of virtual LAN topology in n...

Protection that automatic and speedily restore of ethernet ring net...

Bridge apparatus and logical queue control method

Packet switch

Packet multiplexing control method and a concentrator using the same

Input line interface device and packet communication device

Scheduling method and scheduling apparatus

Packet switch

Packet switch

Packet switch device

Buffer unit and switching apparatus

Packet switch, scheduling device, drop control circuit, multicast c...

Packet insertion interval control system and packet insertion inter...

Packet switch device and scheduling control method