JP2020515961A - ブロックチェーン部分台帳 - Google Patents
ブロックチェーン部分台帳 Download PDFInfo
- Publication number
- JP2020515961A JP2020515961A JP2019552899A JP2019552899A JP2020515961A JP 2020515961 A JP2020515961 A JP 2020515961A JP 2019552899 A JP2019552899 A JP 2019552899A JP 2019552899 A JP2019552899 A JP 2019552899A JP 2020515961 A JP2020515961 A JP 2020515961A
- Authority
- JP
- Japan
- Prior art keywords
- ledger
- blockchain
- contents
- transaction
- ledgers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/10—File systems; File servers
- G06F16/18—File system types
- G06F16/182—Distributed file systems
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/02—Payment architectures, schemes or protocols involving a neutral party, e.g. certification authority, notary or trusted third party [TTP]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/04—Payment circuits
- G06Q20/06—Private payment circuits, e.g. involving electronic currency used among participants of a common payment scheme
- G06Q20/065—Private payment circuits, e.g. involving electronic currency used among participants of a common payment scheme using e-cash
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/22—Payment schemes or models
- G06Q20/223—Payment schemes or models based on the use of peer-to-peer networks
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/38—Payment protocols; Details thereof
- G06Q20/382—Payment protocols; Details thereof insuring higher security of transaction
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
- H04L9/0618—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
- H04L9/0643—Hash functions, e.g. MD5, SHA, HMAC or f9 MAC
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q2220/00—Business processing using cryptography
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/50—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using hash chains, e.g. blockchains or hash trees
Landscapes
- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Theoretical Computer Science (AREA)
- Accounting & Taxation (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Strategic Management (AREA)
- General Business, Economics & Management (AREA)
- Computer Security & Cryptography (AREA)
- Finance (AREA)
- Data Mining & Analysis (AREA)
- Databases & Information Systems (AREA)
- General Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
- Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
Abstract
Description
Claims (15)
- トランザクションエンジンであって、
2つの参加者間のデータトランザクションの記録を受信し、
前記データトランザクションの前記記録に関連付けられた台帳エントリを作成する、
トランザクションエンジンと、
台帳エンジンであって、
ブロックチェーンに関連付けられた複数の部分台帳のサブセットに前記台帳エントリを付加し、
前記ブロックチェーンに関連付けられた前記複数の部分台帳の各々に関連付けられた目次を更新する、
台帳エンジンと、
を備える、システム。 - 各部分台帳は、複数の台帳エントリを含む、請求項1に記載のシステム。
- 前記複数の部分台帳の各々は、前記ブロックチェーンに関連付けられた前記台帳エントリのうちの全てよりも少ない該台帳エントリを含む、請求項2に記載のシステム。
- 前記台帳エンジンは、前記データトランザクションにおいて参加者によって記憶された前記複数の部分台帳の前記サブセットに前記台帳エントリを付加する、請求項1に記載のシステム。
- 前記目次は、前記複数の部分台帳の各々のロケーションのディレクトリを含む、請求項1に記載のシステム。
- 前記目次は、前記ブロックチェーンにおける前記複数の台帳エントリの順序を含む、請求項5に記載のシステム。
- 前記目次は、前記ブロックチェーンにおける前記複数の台帳エントリの正しい順序に関連付けられたチェックサムを含む、請求項6に記載のシステム。
- 前記複数の部分台帳の各々は、前記目次のコピーを含む、請求項1に記載のシステム。
- 前記ブロックチェーンに関連付けられた前記複数の部分台帳の各々に関連付けられた前記目次に対する前記更新は、前記複数の部分台帳の各々に、前記目次の更新されたコピーを配信することを含む、請求項7に記載のシステム。
- 前記複数の部分台帳の各々は、前記目次の正式コピーへのポインタを含む、請求項1に記載のシステム。
- 前記複数の部分台帳についての目次を作成することと、
前記複数の部分台帳の各々を関連ストレージデバイスに割り当てることと、
前記複数の部分台帳の各々の前記関連ストレージデバイスに前記目次を提供することと、
前記ブロックチェーン台帳に関連付けられたトランザクションに応答して、第1の部分台帳及び第2の部分台帳を更新することと、
前記トランザクションに従って、前記複数の部分台帳の各々の前記関連付けられたストレージデバイスに記憶された前記目次を更新することと、
を含む、方法。 - 前記ブロックチェーン台帳は、複数のトランザクション参加者間の複数のトランザクションに関する情報を含む、請求項11に記載の方法。
- 前記複数の部分台帳の各々を関連ストレージデバイスに割り当てることは、前記複数のトランザクションの各々における前記参加者を識別することを含む、請求項12に記載の方法。
- 前記複数のトランザクション参加者の各々は、自身の関連付けられたトランザクションに関連付けられた前記部分台帳に、前記関連ストレージデバイスを提供する、請求項13に記載の方法。
- プロセッサによって実行可能な、
2つの参加者間のデータトランザクションの記録を受信することの命令と、
前記データトランザクションの前記記録に関連付けられた台帳エントリを作成することの命令と、
ブロックチェーンに関連付けられた複数の部分台帳のサブセットに前記台帳エントリを付加することの命令と、
前記ブロックチェーンに関連付けられた前記複数の部分台帳の各々に関連付けられた目次を更新することの命令と、
を記憶する、非一時的機械可読媒体。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US2017/027010 WO2018190809A1 (en) | 2017-04-11 | 2017-04-11 | Blockchain partial ledgers |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2020515961A true JP2020515961A (ja) | 2020-05-28 |
JP2020515961A5 JP2020515961A5 (ja) | 2021-02-12 |
JP6896879B2 JP6896879B2 (ja) | 2021-06-30 |
Family
ID=63793493
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2019552899A Active JP6896879B2 (ja) | 2017-04-11 | 2017-04-11 | システム、方法、可読媒体 |
Country Status (7)
Country | Link |
---|---|
US (1) | US11088825B2 (ja) |
EP (1) | EP3610440A4 (ja) |
JP (1) | JP6896879B2 (ja) |
KR (1) | KR102301257B1 (ja) |
CN (1) | CN110574061A (ja) |
BR (1) | BR112019021204A8 (ja) |
WO (1) | WO2018190809A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023127530A1 (ja) * | 2021-12-28 | 2023-07-06 | 京セラ株式会社 | システム、ノード、及びプログラム |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10862848B2 (en) * | 2017-07-28 | 2020-12-08 | Feelette Oy | Digital communication system and method indicating pressing time |
JP7361711B2 (ja) * | 2018-10-22 | 2023-10-16 | パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ | 制御方法、コンテンツ管理システム、及び、プログラム |
US11120024B2 (en) * | 2018-11-01 | 2021-09-14 | Sap Se | Dual-stack architecture that integrates relational database with blockchain |
KR20200086962A (ko) | 2019-01-10 | 2020-07-20 | 휴렛-팩커드 디벨롭먼트 컴퍼니, 엘.피. | 화상 형성 장치에서 블록체인을 기반한 작업 관리 및 수행 |
EP3687145A1 (en) * | 2019-01-25 | 2020-07-29 | Feelette Oy | A digital communication system and method indicating pressing time |
CN109981750B (zh) * | 2019-03-06 | 2021-09-17 | 北京百度网讯科技有限公司 | 业务流程系统、业务数据处理方法和装置 |
US11159308B2 (en) * | 2019-03-20 | 2021-10-26 | PolySign, Inc. | Preventing an erroneous transmission of a copy of a record of data to a distributed ledger system |
US11843703B2 (en) | 2019-07-17 | 2023-12-12 | Hewlett-Packard Development Company, L.P. | Blockchain-based distributed ledgers for image forming apparatuses |
US11544014B2 (en) | 2021-01-28 | 2023-01-03 | Kyocera Document Solutions Inc. | Printing system and device for processing transactions in a distributed ledger |
WO2022260500A1 (ko) * | 2021-06-11 | 2022-12-15 | 삼성전자 주식회사 | 블록체인 네트워크에서 부분 원장을 가진 전자 장치 및 그의 동작 방법 |
WO2022260501A1 (ko) * | 2021-06-11 | 2022-12-15 | 삼성전자 주식회사 | 블록체인 네트워크에서 부분 원장을 가진 전자 장치 및 그의 동작 방법 |
WO2023096181A1 (ko) * | 2021-11-24 | 2023-06-01 | 삼성전자 주식회사 | 블록체인 네트워크에서 부분 원장을 가진 전자 장치 및 그의 동작 방법 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20160292672A1 (en) * | 2015-03-31 | 2016-10-06 | Nasdaq, Inc. | Systems and methods of blockchain transaction recordation |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10017710A1 (de) * | 2000-04-10 | 2001-10-18 | Johannes Schellmann | Verfahren zum Erfassen und Verarbeiten von Daten von Geschäftsvorfällen |
US7519608B2 (en) * | 2004-03-22 | 2009-04-14 | Sliccware | Secure virtual data warehousing system and method |
US7469241B2 (en) * | 2004-11-30 | 2008-12-23 | Oracle International Corporation | Efficient data aggregation operations using hash tables |
DE102008021933B4 (de) * | 2008-05-02 | 2011-04-07 | Secutanta Gmbh | Verfahren zur Bestimmung einer Kette von Schlüsseln, Verfahren zur Übertragung einer Teilkette der Schlüssel, Computersystem und Chipkarte I |
US9514007B2 (en) * | 2013-03-15 | 2016-12-06 | Amazon Technologies, Inc. | Database system with database engine and separate distributed storage service |
US20140279384A1 (en) | 2013-03-15 | 2014-09-18 | Sap Ag | Monitoring financial risks using a quantity ledger |
US9268806B1 (en) * | 2013-07-26 | 2016-02-23 | Google Inc. | Efficient reference counting in content addressable storage |
US9830593B2 (en) * | 2014-04-26 | 2017-11-28 | Ss8 Networks, Inc. | Cryptographic currency user directory data and enhanced peer-verification ledger synthesis through multi-modal cryptographic key-address mapping |
US9967334B2 (en) * | 2015-03-02 | 2018-05-08 | Dell Products Lp | Computing device configuration and management using a secure decentralized transaction ledger |
US11023968B2 (en) | 2015-03-05 | 2021-06-01 | Goldman Sachs & Co. LLC | Systems and methods for updating a distributed ledger based on partial validations of transactions |
US20160321435A1 (en) * | 2015-05-01 | 2016-11-03 | Monegraph, Inc. | Managing digital content via block chain registers |
US10812274B2 (en) | 2015-05-07 | 2020-10-20 | Blockstream Corporation | Transferring ledger assets between blockchains via pegged sidechains |
US9934264B2 (en) * | 2015-06-02 | 2018-04-03 | Netapp, Inc. | Technique for reducing metadata stored in a memory of a node |
GB201511964D0 (en) | 2015-07-08 | 2015-08-19 | Barclays Bank Plc | Secure digital data operations |
GB201511963D0 (en) | 2015-07-08 | 2015-08-19 | Barclays Bank Plc | Secure digital data operations |
US10402792B2 (en) * | 2015-08-13 | 2019-09-03 | The Toronto-Dominion Bank | Systems and method for tracking enterprise events using hybrid public-private blockchain ledgers |
US10230756B2 (en) * | 2015-11-25 | 2019-03-12 | International Business Machines Corporation | Resisting replay attacks efficiently in a permissioned and privacy-preserving blockchain network |
US10713654B2 (en) * | 2016-01-21 | 2020-07-14 | International Business Machines Corporation | Enterprise blockchains and transactional systems |
US20170236120A1 (en) * | 2016-02-11 | 2017-08-17 | Oracle International Corporation | Accountability and Trust in Distributed Ledger Systems |
US20170236123A1 (en) * | 2016-02-16 | 2017-08-17 | Blockstack Inc. | Decentralized processing of global naming systems |
KR101701131B1 (ko) | 2016-04-28 | 2017-02-13 | 주식회사 라피 | 이종간 블록체인 연결을 이용한 데이터 기록/검증 방법 및 시스템 |
KR101784219B1 (ko) | 2016-06-15 | 2017-10-12 | 주식회사 코인플러그 | 블록체인을 기반으로 하는 금융기관 제증명서류 위변조 검증시스템 및 방법 |
US10282558B2 (en) * | 2016-09-02 | 2019-05-07 | The Toronto-Dominion Bank | System and method for maintaining a segregated database in a multiple distributed ledger system |
US10339014B2 (en) * | 2016-09-28 | 2019-07-02 | Mcafee, Llc | Query optimized distributed ledger system |
US10387684B2 (en) * | 2016-12-09 | 2019-08-20 | International Business Machines Corporation | Interlocked blockchains to increase blockchain security |
-
2017
- 2017-04-11 US US16/498,962 patent/US11088825B2/en active Active
- 2017-04-11 JP JP2019552899A patent/JP6896879B2/ja active Active
- 2017-04-11 WO PCT/US2017/027010 patent/WO2018190809A1/en unknown
- 2017-04-11 EP EP17905849.0A patent/EP3610440A4/en active Pending
- 2017-04-11 CN CN201780089544.1A patent/CN110574061A/zh active Pending
- 2017-04-11 BR BR112019021204A patent/BR112019021204A8/pt not_active Application Discontinuation
- 2017-04-11 KR KR1020197029721A patent/KR102301257B1/ko active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20160292672A1 (en) * | 2015-03-31 | 2016-10-06 | Nasdaq, Inc. | Systems and methods of blockchain transaction recordation |
CN107615317A (zh) * | 2015-03-31 | 2018-01-19 | 纳斯达克公司 | 区块链交易记录的系统和方法 |
JP2018515833A (ja) * | 2015-03-31 | 2018-06-14 | ナスダック, インコーポレイテッドNasdaq, Inc. | ブロックチェーン取引記録のシステムおよび方法 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023127530A1 (ja) * | 2021-12-28 | 2023-07-06 | 京セラ株式会社 | システム、ノード、及びプログラム |
Also Published As
Publication number | Publication date |
---|---|
KR102301257B1 (ko) | 2021-09-10 |
US11088825B2 (en) | 2021-08-10 |
BR112019021204A8 (pt) | 2023-04-18 |
EP3610440A1 (en) | 2020-02-19 |
CN110574061A (zh) | 2019-12-13 |
KR20190122843A (ko) | 2019-10-30 |
US20210091924A1 (en) | 2021-03-25 |
JP6896879B2 (ja) | 2021-06-30 |
WO2018190809A1 (en) | 2018-10-18 |
BR112019021204A2 (pt) | 2020-04-28 |
EP3610440A4 (en) | 2020-12-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP2020515961A (ja) | ブロックチェーン部分台帳 | |
US11095451B2 (en) | Optimal data storage configuration in a blockchain | |
US11074775B2 (en) | Blockchain-based anonymized cryptologic voting | |
KR102332031B1 (ko) | 블록체인-기반 디지털 인증서를 구현하기 위한 시스템 및 방법 | |
CN102170440B (zh) | 适用于存储云间数据安全迁移的方法 | |
JP7025566B2 (ja) | 許可型ブロックチェーンネットワークのための、誤り訂正コードに基づくブロックチェーンデータ記憶 | |
JP2021527274A (ja) | ブロックチェーンの分散アクセス、記憶、及び転送 | |
CN108200208B (zh) | 基于云计算的物流区块链共识算法 | |
JP7005639B2 (ja) | 共有秘密ベースのブロックチェーン記憶 | |
JP7047133B2 (ja) | 符号化ブロックチェーンデータのインデックス化および復元 | |
US20130290361A1 (en) | Multi-geography cloud storage | |
JP7434480B2 (ja) | 暗号学的に保護された分散データ管理のためのデータベース中心のコンピュータ・ネットワーク・システムおよびコンピュータ実装方法 | |
JP2022504348A (ja) | ブロックチェーン・リソースを格納するブロックチェーン通知ボード | |
KR20200105999A (ko) | 디지털 마크를 생성하기 위한 시스템 및 방법 | |
US10671709B2 (en) | Data isolation in distributed hash chains | |
US11138188B2 (en) | Performance optimization | |
KR101428649B1 (ko) | 맵 리듀스 기반의 대용량 개인정보 암호화 시스템 및 그의 동작 방법 | |
CN113542405A (zh) | 基于区块链的网络通信系统、方法、设备及存储介质 | |
CN109241057A (zh) | 一种用于分布式系统的数字id生成方法 | |
CN108280355A (zh) | 一种数据脱敏方法及装置 | |
CN114579585A (zh) | 区块链选择性世界状态数据库 | |
US20230214404A1 (en) | Computer-implemented method for storing data using a distributed transaction database, computer program product, and network | |
CN117034370B (zh) | 基于区块链网络的数据处理方法及相关设备 | |
CN107395745A (zh) | 一种分布式存储系统数据分散存储实现方法 | |
CN110209666B (zh) | 一种数据存储方法及终端设备 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20190925 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20200928 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20201006 |
|
A524 | Written submission of copy of amendment under article 19 pct |
Free format text: JAPANESE INTERMEDIATE CODE: A524 Effective date: 20201224 |
|
RD03 | Notification of appointment of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7423 Effective date: 20210401 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20210601 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20210609 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 6896879 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |