Eiichi Amada

Person

Kodaira, 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
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
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
Broadcast information delivering system
- Patent number 6,256,509
- Issue date Jul 3, 2001
- Hitachi, Ltd.
- Satoshi Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Frequency-hopping communication system and communication station
- Patent number 6,061,389
- Issue date May 9, 2000
- Hitachi, Ltd.
- Tomoaki Ishifuji
- 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
Frequency hopping wireless communication system and communication e...
- Patent number 5,862,142
- Issue date Jan 19, 1999
- Hitachi, Ltd.
- Yoshihiro Takiyasu
- 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
Wireless LAN system capable of re-transmission under management of...
- Patent number 5,655,219
- Issue date Aug 5, 1997
- Hitachi, Ltd.
- Hidehiko Jusa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Screen communications system granting screen modifying requests if...
- Patent number 5,596,721
- Issue date Jan 21, 1997
- Hitachi, Ltd.
- Ichiro Masse
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Wireless communication system and wireless terminal device using fi...
- Patent number 5,559,804
- Issue date Sep 24, 1996
- Hitachi, Ltd.
- Eiichi Amada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of wireless communication between base station and mobile st...
- Patent number 5,537,414
- Issue date Jul 16, 1996
- Hitachi, Ltd.
- Yoshihiro Takiyasu
- 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
Transmission system constituted of multistage reproduction nodes
- Patent number 5,414,739
- Issue date May 9, 1995
- Hitachi, Ltd.
- Naoya Kobayashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
High-speed ring lan system
- Patent number 5,247,518
- Issue date Sep 21, 1993
- Hitachi, Ltd.
- Yoshihiro Takiyasu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Independent clocking local area network and nodes used for the same
- Patent number 5,241,543
- Issue date Aug 31, 1993
- Hitachi, Ltd.
- Eiichi Amada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Cell signal processing circuit and optical switch apparatus using t...
- Patent number 5,197,097
- Issue date Mar 23, 1993
- Hitachi, Ltd.
- Yasushi Takahashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Switching system
- Patent number 5,184,346
- Issue date Feb 2, 1993
- Hitachi, Ltd.
- Takahiko Kozaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Communication apparatus for reassembling packets received from netw...
- Patent number 5,113,392
- Issue date May 12, 1992
- Hitachi, Ltd.
- Yoshihiro Takiyasu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
High-speed ring LAN system
- Patent number 5,103,447
- Issue date Apr 7, 1992
- Hitachi, Ltd.
- Yoshihiro Takiyasu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
High-speed packet switching using a space division optical switch
- Patent number 5,091,905
- Issue date Feb 25, 1992
- Hitachi, Ltd.
- Eiichi Amada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
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

Patents Applicationslast 30 patents

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

Eiichi Amada

Person

Patents Grantslast 30 patents

Packet switching system having self-routing switches

Distributed type switching system

Packet switching system having-having self-routing switches

Distributed type switching system

Distributed type switching system

Packet switching system having self-routing switches

Distributed type switching system

Broadcast information delivering system

Frequency-hopping communication system and communication station

Time-division channel arrangement

Packet switching system having self-routing switches

Distributed type switching system

Frequency hopping wireless communication system and communication e...

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

Packet switching system having self-routing switches

Distributed type switching system

Wireless LAN system capable of re-transmission under management of...

Screen communications system granting screen modifying requests if...

Wireless communication system and wireless terminal device using fi...

Method of wireless communication between base station and mobile st...

Distributed switching system having at least one module

Transmission system constituted of multistage reproduction nodes

High-speed ring lan system

Independent clocking local area network and nodes used for the same

Cell signal processing circuit and optical switch apparatus using t...

Switching system

Communication apparatus for reassembling packets received from netw...

High-speed ring LAN system

High-speed packet switching using a space division optical switch

Time-division channel arrangement

Patents Applicationslast 30 patents

DISTRIBUTED TYPE SWITCHING SYSTEM

Packet switching system having self-routing switches

Distributed type switching system