Hiroshi KUWAHARA

Person

Yokohama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Management system and management method for storage system
- Patent number 8,224,879
- Issue date Jul 17, 2012
- Hitachi, Ltd.
- Hiroshi Kuwahara
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Backup method for a copy pair using newly created logical volume vi...
- Patent number 7,509,466
- Issue date Mar 24, 2009
- Hitachi, Ltd.
- Hiroshi Kuwahara
- G06 - COMPUTING CALCULATING COUNTING
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
Graph displaying method and apparatus and processing operation moni...
- Patent number 5,999,162
- Issue date Dec 7, 1999
- Hitachi, Ltd.
- Shuichi Takahashi
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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
Portable telephone system
- Patent number 5,838,770
- Issue date Nov 17, 1998
- Hitachi, Ltd.
- Yutaka Fukushima
- 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
Portable telephone system
- Patent number 5,579,370
- Issue date Nov 26, 1996
- Hitachi, Ltd.
- Yutaka Fukushima
- 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
Display apparatus and method with multi-window function
- Patent number 5,469,189
- Issue date Nov 21, 1995
- Hitachi, Ltd.
- Yasuhiro Noguchi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Mobile communication system and location registration method in mob...
- Patent number 5,379,451
- Issue date Jan 3, 1995
- Hitachi, Ltd.
- Arata Nakagoshi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Intermittenceless switching system
- Patent number 5,353,281
- Issue date Oct 4, 1994
- Kokusai Electric Co., Ltd.
- Hiroshi Kuwahara
- 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
Communication system including portable terminals and fixed terminals
- Patent number 5,157,660
- Issue date Oct 20, 1992
- Hitachi, Ltd.
- Hiroshi Kuwahara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
MANAGEMENT SYSTEM AND MANAGEMENT METHOD FOR STORAGE SYSTEM
- Publication number 20110264716
- Publication date Oct 27, 2011
- Hitachi, Ltd
- Hiroshi Kuwahara
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
BACKUP METHOD
- Publication number 20080072002
- Publication date Mar 20, 2008
- Hiroshi KUWAHARA
- G06 - COMPUTING CALCULATING COUNTING
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

Hiroshi KUWAHARA

Person

Patents Grantslast 30 patents

Management system and management method for storage system

Backup method for a copy pair using newly created logical volume vi...

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

Graph displaying method and apparatus and processing operation moni...

Distributed type switching system

Portable telephone system

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

Packet switching system having self-routing switches

Distributed type switching system

Portable telephone system

Distributed switching system having at least one module

Display apparatus and method with multi-window function

Mobile communication system and location registration method in mob...

Intermittenceless switching system

Switching system and method of construction thereof

Communication system including portable terminals and fixed terminals

Patents Applicationslast 30 patents

MANAGEMENT SYSTEM AND MANAGEMENT METHOD FOR STORAGE SYSTEM

BACKUP METHOD

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