Keiichi Matsuzawa

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Question answering system, question answering program, and question...
- Patent number 12,223,267
- Issue date Feb 11, 2025
- HITACHI VANTARA, LTD.
- Keiichi Matsuzawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and system for restricting transmission of sensitive informa...
- Patent number 12,067,372
- Issue date Aug 20, 2024
- Hitachi, Ltd.
- Keiichi Matsuzawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Distributed storage system, data storage method, and software program
- Patent number 10,977,124
- Issue date Apr 13, 2021
- Hitachi, Ltd.
- Mitsuo Hayasaka
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Storage system and data transfer control method
- Patent number 10,936,243
- Issue date Mar 2, 2021
- Hitachi, Ltd.
- Akiyoshi Tsuchiya
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
File storage, object storage, and storage system
- Patent number 10,798,149
- Issue date Oct 6, 2020
- Hitachi, Ltd.
- Masayuki Kobayashi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Storage system
- Patent number 10,649,691
- Issue date May 12, 2020
- Hitachi, Ltd.
- Mitsuo Hayasaka
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Computer system, storage apparatus, and method of managing data
- Patent number 10,606,499
- Issue date Mar 31, 2020
- Hitachi, Ltd.
- Mitsuo Hayasaka
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Computer system, computer, and method to manage allocation of virtu...
- Patent number 10,235,282
- Issue date Mar 19, 2019
- Hitachi, Ltd.
- Keiichi Matsuzawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Computer system and memory dump method
- Patent number 10,210,035
- Issue date Feb 19, 2019
- Hitachi, Ltd.
- Keiichi Matsuzawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Storage device and computer system
- Patent number 9,766,824
- Issue date Sep 19, 2017
- Hitachi, Ltd.
- Keiichi Matsuzawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Storage system
- Patent number 9,229,860
- Issue date Jan 5, 2016
- Hitachi, Ltd.
- Keiichi Matsuzawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Distribution processing unit of shared storage
- Patent number 9,146,694
- Issue date Sep 29, 2015
- Hitachi, Ltd.
- Keiichi Matsuzawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
File storage system and file cloning method
- Patent number 9,116,913
- Issue date Aug 25, 2015
- Hitachi, Ltd.
- Takayuki Fukatani
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Computer system and method of controlling I/O with respect to stora...
- Patent number 9,104,317
- Issue date Aug 11, 2015
- Hitachi, Ltd.
- Akira Hayakawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Storage system and power consumption reduction method for the same
- Patent number 8,572,417
- Issue date Oct 29, 2013
- Hitachi, Ltd.
- Keiichi Matsuzawa
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Backup apparatus, backup method, and file reading apparatus
- Patent number 8,359,439
- Issue date Jan 22, 2013
- Hitachi, Ltd.
- Takahiro Nakano
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
File management system and method
- Patent number 8,135,677
- Issue date Mar 13, 2012
- Hitachi, Ltd.
- Keiichi Matsuzawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Storage system, volume management method, and management computer
- Patent number 8,131,783
- Issue date Mar 6, 2012
- Hitachi, Ltd.
- Keiichi Matsuzawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Storage system and power consumption reduction method for the same
- Patent number 8,095,810
- Issue date Jan 10, 2012
- Hitachi, Ltd.
- Keiichi Matsuzawa
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
File readahead method with the use of access pattern information at...
- Patent number 7,529,892
- Issue date May 5, 2009
- Hitachi, Ltd.
- Keiichi Matsuzawa
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
INFORMATION PROCESSING APPARATUS AND INFORMATION PROCESSING METHOD
- Publication number 20240330078
- Publication date Oct 3, 2024
- Hitachi, Ltd
- Keiichi MATSUZAWA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
AUTOMATIC QUESTION ANSWERING SYSTEM AND QUESTION-ANSWER PAIR DATA G...
- Publication number 20230334072
- Publication date Oct 19, 2023
- Hitachi, Ltd
- Keiichi MATSUZAWA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
QUESTION ANSWERING SYSTEM, QUESTION ANSWERING PROGRAM, AND QUESTION...
- Publication number 20220391586
- Publication date Dec 8, 2022
- Hitachi, Ltd
- Keiichi MATSUZAWA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
DATA MANAGEMENT COMPUTER AND DATA MANAGEMENT METHOD
- Publication number 20220377088
- Publication date Nov 24, 2022
- Hitachi, Ltd
- Keiichi MATSUZAWA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SENTENCE DATA MANAGEMENT METHOD AND SENTENCE DATA MANAGEMENT SYSTEM
- Publication number 20220374616
- Publication date Nov 24, 2022
- Hitachi, Ltd
- Keiichi MATSUZAWA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
STORAGE SYSTEM AND DATA TRANSFER CONTROL METHOD
- Publication number 20200073584
- Publication date Mar 5, 2020
- Hitachi, Ltd
- Akiyoshi TSUCHIYA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
FILE STORAGE, OBJECT STORAGE, AND STORAGE SYSTEM
- Publication number 20190215358
- Publication date Jul 11, 2019
- Hitachi, Ltd
- Masayuki KOBAYASHI
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
DISTRIBUTED STORAGE SYSTEM, DATA STORAGE METHOD, AND SOFTWARE PROGRAM
- Publication number 20180267856
- Publication date Sep 20, 2018
- Hitachi, Ltd
- Mitsuo HAYASAKA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
COMPUTER SYSTEM, STORAGE APPARATUS, AND METHOD OF MANAGING DATA
- Publication number 20180253251
- Publication date Sep 6, 2018
- Hitachi, Ltd
- Mitsuo HAYASAKA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
COMPUTER SYSTEM, COMPUTER, AND METHOD
- Publication number 20170351601
- Publication date Dec 7, 2017
- Hitachi, Ltd
- Keiichi MATSUZAWA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
COMPUTER SYSTEM AND MEMORY DUMP METHOD
- Publication number 20170277587
- Publication date Sep 28, 2017
- Hitachi, Ltd
- Keiichi MATSUZAWA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
STORAGE SYSTEM
- Publication number 20160371035
- Publication date Dec 22, 2016
- Hitachi, Ltd
- Mitsuo HAYASAKA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
STORAGE DEVICE AND COMPUTER SYSTEM
- Publication number 20160011809
- Publication date Jan 14, 2016
- Hitachi, Ltd
- Keiichi MATSUZAWA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
DISTRIBUTION PROCESSING UNIT OF SHARED STORAGE
- Publication number 20140115019
- Publication date Apr 24, 2014
- Hitachi, Ltd
- Keiichi Matsuzawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
COMPUTER SYSTEM AND METHOD OF CONTROLLING I/O WITH RESPECT TO STORA...
- Publication number 20130346688
- Publication date Dec 26, 2013
- Hitachi, Ltd.
- Akira Hayakawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
FILE STORAGE SYSTEM AND FILE CLONING METHOD
- Publication number 20130290248
- Publication date Oct 31, 2013
- Hitachi, Ltd.
- Takayuki Fukatani
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
COMPUTER SYSTEM AND DATA MIGRATION METHOD
- Publication number 20130124674
- Publication date May 16, 2013
- Hitachi, Ltd.
- Shinya Matsumoto
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
INFORMATION SYSTEM AND METHOD FOR MANAGING DATA IN INFORMATION SYSTEM
- Publication number 20130110967
- Publication date May 2, 2013
- Hitachi, Ltd
- Atsushi Ueoka
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
COMPUTER
- Publication number 20130091562
- Publication date Apr 11, 2013
- Hitachi, Ltd.
- Keiichi Matsuzawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
STORAGE SYSTEM AND POWER CONSUMPTION REDUCTION METHOD FOR THE SAME
- Publication number 20110307729
- Publication date Dec 15, 2011
- Hitachi, Ltd
- Keiichi Matsuzawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Storage system, volume management method, and management computer
- Publication number 20100211620
- Publication date Aug 19, 2010
- Hitachi, Ltd.
- Keiichi Matsuzawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
File Management System and Method
- Publication number 20100030825
- Publication date Feb 4, 2010
- Hitachi, Ltd.
- Keiichi Matsuzawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Storage system and power consumption reduction method for the same
- Publication number 20090193272
- Publication date Jul 30, 2009
- Hitachi, Ltd.
- Keiichi Matsuzawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Backup apparatus, backup method, and file reading apparatus
- Publication number 20090150628
- Publication date Jun 11, 2009
- Hitachi, Ltd.
- Takahiro Nakano
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
COMPUTER SYSTEM, ROOT NODE, AND LOG MANAGEMENT METHOD FOR ACCESS PA...
- Publication number 20080263222
- Publication date Oct 23, 2008
- Keiichi MATSUZAWA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
File readahead method with the use of access pattern information at...
- Publication number 20080040538
- Publication date Feb 14, 2008
- Keiichi Matsuzawa
- G06 - COMPUTING CALCULATING COUNTING

Keiichi Matsuzawa

Person

Patents Grantslast 30 patents

Question answering system, question answering program, and question...

Method and system for restricting transmission of sensitive informa...

Distributed storage system, data storage method, and software program

Storage system and data transfer control method

File storage, object storage, and storage system

Storage system

Computer system, storage apparatus, and method of managing data

Computer system, computer, and method to manage allocation of virtu...

Computer system and memory dump method

Storage device and computer system

Storage system

Distribution processing unit of shared storage

File storage system and file cloning method

Computer system and method of controlling I/O with respect to stora...

Storage system and power consumption reduction method for the same

Backup apparatus, backup method, and file reading apparatus

File management system and method

Storage system, volume management method, and management computer

Storage system and power consumption reduction method for the same

File readahead method with the use of access pattern information at...

Patents Applicationslast 30 patents

INFORMATION PROCESSING APPARATUS AND INFORMATION PROCESSING METHOD

AUTOMATIC QUESTION ANSWERING SYSTEM AND QUESTION-ANSWER PAIR DATA G...

QUESTION ANSWERING SYSTEM, QUESTION ANSWERING PROGRAM, AND QUESTION...

DATA MANAGEMENT COMPUTER AND DATA MANAGEMENT METHOD

SENTENCE DATA MANAGEMENT METHOD AND SENTENCE DATA MANAGEMENT SYSTEM

STORAGE SYSTEM AND DATA TRANSFER CONTROL METHOD

FILE STORAGE, OBJECT STORAGE, AND STORAGE SYSTEM

DISTRIBUTED STORAGE SYSTEM, DATA STORAGE METHOD, AND SOFTWARE PROGRAM

COMPUTER SYSTEM, STORAGE APPARATUS, AND METHOD OF MANAGING DATA

COMPUTER SYSTEM, COMPUTER, AND METHOD

COMPUTER SYSTEM AND MEMORY DUMP METHOD

STORAGE SYSTEM

STORAGE DEVICE AND COMPUTER SYSTEM

DISTRIBUTION PROCESSING UNIT OF SHARED STORAGE

COMPUTER SYSTEM AND METHOD OF CONTROLLING I/O WITH RESPECT TO STORA...

FILE STORAGE SYSTEM AND FILE CLONING METHOD

COMPUTER SYSTEM AND DATA MIGRATION METHOD

INFORMATION SYSTEM AND METHOD FOR MANAGING DATA IN INFORMATION SYSTEM

COMPUTER

STORAGE SYSTEM AND POWER CONSUMPTION REDUCTION METHOD FOR THE SAME

Storage system, volume management method, and management computer

File Management System and Method

Storage system and power consumption reduction method for the same

Backup apparatus, backup method, and file reading apparatus

COMPUTER SYSTEM, ROOT NODE, AND LOG MANAGEMENT METHOD FOR ACCESS PA...

File readahead method with the use of access pattern information at...