Kenichi Ohtsuki

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Packet switching system having self-routing switches
- Patent number 7,058,062
- Issue date Jun 6, 2006
- Hitachi, Ltd.
- Shirou Tanabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
ATM cell switching system
- Patent number 6,728,242
- Issue date Apr 27, 2004
- Hitachi, Ltd.
- Yoshito Sakurai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Distributed type switching system
- Patent number 6,639,920
- Issue date Oct 28, 2003
- Hitachi, Ltd.
- Yoshito Sakurai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Packet switching system having-having self-routing switches
- Patent number 6,618,372
- Issue date Sep 9, 2003
- Hitachi, Ltd.
- Shirou Tanabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
ATM cell switching system
- Patent number 6,546,011
- Issue date Apr 8, 2003
- Hitachi, Ltd.
- Yoshito Sakurai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
ATM cell switching system
- Patent number 6,445,703
- Issue date Sep 3, 2002
- Hitachi, Ltd.
- Yoshito Sakurai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Distributed type switching system
- Patent number 6,389,025
- Issue date May 14, 2002
- Hitachi, Ltd.
- Yoshito Sakurai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Distributed type switching system
- Patent number 6,335,934
- Issue date Jan 1, 2002
- Hitachi, Ltd.
- Yoshito Sakurai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Packet switching system having self-routing switches
- Patent number 6,314,096
- Issue date Nov 6, 2001
- Hitachi, Ltd.
- Shirou Tanabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Distributed type switching system
- Patent number 6,304,570
- Issue date Oct 16, 2001
- Hitachi, Ltd.
- Yoshito Sakurai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
ATM cell switching system
- Patent number 6,285,675
- Issue date Sep 4, 2001
- Hitachi, Ltd.
- Yoshito Sakurai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
ATM cell switching system
- Patent number 6,215,788
- Issue date Apr 10, 2001
- Hitachi, Ltd.
- Yoshito Sakurai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
ATM cell switching system
- Patent number 6,016,317
- Issue date Jan 18, 2000
- Hitachi, Ltd.
- Yoshito Sakurai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Time-division channel arrangement
- Patent number 6,005,867
- Issue date Dec 21, 1999
- Hitachi, Ltd.
- Shirou Tanabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Packet switching system having self-routing switches
- Patent number 5,999,537
- Issue date Dec 7, 1999
- Hitachi, Ltd.
- Shirou Tanabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Distributed type switching system
- Patent number 5,995,510
- Issue date Nov 30, 1999
- Hitachi, Ltd.
- Yoshito Sakurai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus for monitoring and controlling autonomous switching of tr...
- Patent number 5,745,495
- Issue date Apr 28, 1998
- Hitachi, Ltd.
- Yoshito Sakurai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Packet switching system having self-routing switches
- Patent number 5,740,156
- Issue date Apr 14, 1998
- Hitachi, Ltd.
- Shirou Tanabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Distributed type switching system
- Patent number 5,734,655
- Issue date Mar 31, 1998
- Hitachi, Ltd.
- Yoshito Sakurai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Distributed switching system having at least one module
- Patent number 5,513,177
- Issue date Apr 30, 1996
- Hitachi, Ltd.
- Yoshito Sakurai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical switching system
- Patent number 5,506,713
- Issue date Apr 9, 1996
- Hitachi, Ltd.
- Manabu Okamoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical switching system
- Patent number 5,477,362
- Issue date Dec 19, 1995
- Hitachi, Ltd.
- Manabu Okamoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Switching system and method of construction thereof
- Patent number RE34305
- Issue date Jul 6, 1993
- Hitachi, Ltd.
- Yoshito Sakurai
- 370 - Multiplex communications
Information Patent Grant
Time-division channel arrangement
- Patent number 5,043,979
- Issue date Aug 27, 1991
- Hitachi, Ltd.
- Yoshito Sakurai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and system for packet exchange
- Patent number 4,964,119
- Issue date Oct 16, 1990
- Hitachi, Ltd.
- Noboru Endo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
ATM switching system
- Patent number 4,956,839
- Issue date Sep 11, 1990
- Hitachi, Ltd.
- Yutaka Torii
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Switching system and method of construction thereof
- Patent number 4,910,731
- Issue date Mar 20, 1990
- Hitachi, Ltd.
- Yoshito Sakurai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
ATM cell switching system
- Publication number 20030123440
- Publication date Jul 3, 2003
- Yoshito Sakurai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DISTRIBUTED TYPE SWITCHING SYSTEM
- Publication number 20020126649
- Publication date Sep 12, 2002
- Yoshito Sakurai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Packet switching system having self-routing switches
- Publication number 20020057696
- Publication date May 16, 2002
- Shirou Tanabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Distributed type switching system
- Publication number 20010028658
- Publication date Oct 11, 2001
- Yoshito Sakurai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ATM cell switching system
- Publication number 20010028652
- Publication date Oct 11, 2001
- Yoshito Sakurai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ATM cell switching system
- Publication number 20010005386
- Publication date Jun 28, 2001
- Yoshito Sakurai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Kenichi Ohtsuki

Person

Patents Grantslast 30 patents

Packet switching system having self-routing switches

ATM cell switching system

Distributed type switching system

Packet switching system having-having self-routing switches

ATM cell switching system

ATM cell switching system

Distributed type switching system

Distributed type switching system

Packet switching system having self-routing switches

Distributed type switching system

ATM cell switching system

ATM cell switching system

ATM cell switching system

Time-division channel arrangement

Packet switching system having self-routing switches

Distributed type switching system

Apparatus for monitoring and controlling autonomous switching of tr...

Packet switching system having self-routing switches

Distributed type switching system

Distributed switching system having at least one module

Optical switching system

Optical switching system

Switching system and method of construction thereof

Time-division channel arrangement

Method and system for packet exchange

ATM switching system

Switching system and method of construction thereof

Patents Applicationslast 30 patents

ATM cell switching system

DISTRIBUTED TYPE SWITCHING SYSTEM

Packet switching system having self-routing switches

Distributed type switching system

ATM cell switching system

ATM cell switching system