Membership
Tour
Register
Log in
Yoshito Sakurai
Follow
Person
Kawasaki-shi, JP
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Communication method of supplying information in intelligent networ...
Patent number
RE41472
Issue date
Aug 3, 2010
Hitachi, Ltd.
Yukiko Tonomura
379 - Telephonic communications
Information
Patent Grant
Communication method of supplying information in intelligent networ...
Patent number
RE39903
Issue date
Oct 30, 2007
Hitachi, Ltd.
Yukiko Tonomura
379 - Telephonic communications
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
Packet switching network, packet switching equipment and network ma...
Patent number
7,046,630
Issue date
May 16, 2006
Hitachi, Ltd.
Hajime Abe
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
Packet switching network, packet switching equipment, and network m...
Patent number
6,512,745
Issue date
Jan 28, 2003
Hitachi, Ltd.
Hajime Abe
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
Packet switching network, packet switching equipment, and network m...
Patent number
6,108,304
Issue date
Aug 22, 2000
Hajime Abe
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Switching system for switching cells having error detection apparatus
Patent number
RE36716
Issue date
May 30, 2000
Hitachi, Ltd.
Takahiko Kozaki
370 - Multiplex communications
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
Communication method of supplying information in intelligent networ...
Patent number
5,809,119
Issue date
Sep 15, 1998
Hitachi, Ltd.
Yukiko Tonomura
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
Communication method of supplying information in intelligent networ...
Patent number
5,590,180
Issue date
Dec 31, 1996
Hitachi, Ltd.
Yukiko Tonomura
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
Patents Applications
last 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
Packet switching network, packet switching equipment and network ma...
Publication number
20030091049
Publication date
May 15, 2003
Hajime Abe
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