JP6893897B2 - ソリッドステートドライブ(ssd)、そのガーベッジコレクションに係る方法、及びその具現に係る物品 - Google Patents
ソリッドステートドライブ(ssd)、そのガーベッジコレクションに係る方法、及びその具現に係る物品 Download PDFInfo
- Publication number
- JP6893897B2 JP6893897B2 JP2018084363A JP2018084363A JP6893897B2 JP 6893897 B2 JP6893897 B2 JP 6893897B2 JP 2018084363 A JP2018084363 A JP 2018084363A JP 2018084363 A JP2018084363 A JP 2018084363A JP 6893897 B2 JP6893897 B2 JP 6893897B2
- Authority
- JP
- Japan
- Prior art keywords
- block
- valid data
- stream identifier
- response
- stream
- 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.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/0604—Improving or facilitating administration, e.g. storage management
- G06F3/0607—Improving or facilitating administration, e.g. storage management by facilitating the process of upgrading existing storage systems, e.g. for improving compatibility between host and storage device
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/02—Addressing or allocation; Relocation
- G06F12/0223—User address space allocation, e.g. contiguous or non contiguous base addressing
- G06F12/023—Free address space management
- G06F12/0238—Memory management in non-volatile memory, e.g. resistive RAM or ferroelectric memory
- G06F12/0246—Memory management in non-volatile memory, e.g. resistive RAM or ferroelectric memory in block erasable memory, e.g. flash memory
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/02—Addressing or allocation; Relocation
- G06F12/0223—User address space allocation, e.g. contiguous or non contiguous base addressing
- G06F12/023—Free address space management
- G06F12/0253—Garbage collection, i.e. reclamation of unreferenced memory
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/0608—Saving storage space on storage systems
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/0614—Improving the reliability of storage systems
- G06F3/0616—Improving the reliability of storage systems in relation to life time, e.g. increasing Mean Time Between Failures [MTBF]
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0638—Organizing or formatting or addressing of data
- G06F3/064—Management of blocks
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0646—Horizontal data movement in storage systems, i.e. moving data in between storage devices or systems
- G06F3/0652—Erasing, e.g. deleting, data cleaning, moving of data to a wastebasket
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
- G06F3/0671—In-line storage system
- G06F3/0673—Single storage device
- G06F3/0679—Non-volatile semiconductor memory device, e.g. flash memory, one time programmable memory [OTP]
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C16/00—Erasable programmable read-only memories
- G11C16/02—Erasable programmable read-only memories electrically programmable
- G11C16/06—Auxiliary circuits, e.g. for writing into memory
- G11C16/10—Programming or data input circuits
- G11C16/14—Circuits for erasing electrically, e.g. erase voltage switching circuits
- G11C16/16—Circuits for erasing electrically, e.g. erase voltage switching circuits for erasing blocks, e.g. arrays, words, groups
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2212/00—Indexing scheme relating to accessing, addressing or allocation within memory systems or architectures
- G06F2212/10—Providing a specific technical effect
- G06F2212/1041—Resource optimization
- G06F2212/1044—Space efficiency improvement
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2212/00—Indexing scheme relating to accessing, addressing or allocation within memory systems or architectures
- G06F2212/20—Employing a main memory using a specific memory technology
- G06F2212/202—Non-volatile memory
- G06F2212/2022—Flash memory
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2212/00—Indexing scheme relating to accessing, addressing or allocation within memory systems or architectures
- G06F2212/72—Details relating to flash memory management
- G06F2212/7201—Logical to physical mapping or translation of blocks or pages
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2212/00—Indexing scheme relating to accessing, addressing or allocation within memory systems or architectures
- G06F2212/72—Details relating to flash memory management
- G06F2212/7205—Cleaning, compaction, garbage collection, erase control
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Memory System (AREA)
- Techniques For Improving Reliability Of Storages (AREA)
- Vending Machines For Individual Products (AREA)
- Die Bonding (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
- Storage Device Security (AREA)
- Computer Security & Cryptography (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201762490027P | 2017-04-25 | 2017-04-25 | |
| US62/490,027 | 2017-04-25 | ||
| US15/620,814 | 2017-06-12 | ||
| US15/620,814 US10698808B2 (en) | 2017-04-25 | 2017-06-12 | Garbage collection—automatic data placement |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2018185815A JP2018185815A (ja) | 2018-11-22 |
| JP2018185815A5 JP2018185815A5 (enExample) | 2021-06-10 |
| JP6893897B2 true JP6893897B2 (ja) | 2021-06-23 |
Family
ID=63853844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2018084363A Active JP6893897B2 (ja) | 2017-04-25 | 2018-04-25 | ソリッドステートドライブ(ssd)、そのガーベッジコレクションに係る方法、及びその具現に係る物品 |
Country Status (5)
| Country | Link |
|---|---|
| US (4) | US10698808B2 (enExample) |
| JP (1) | JP6893897B2 (enExample) |
| KR (1) | KR102615007B1 (enExample) |
| CN (1) | CN108733321B (enExample) |
| TW (1) | TWI771383B (enExample) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10761750B2 (en) * | 2017-03-09 | 2020-09-01 | Netapp Inc. | Selectively storing data into allocation areas using streams |
| JP2018160195A (ja) * | 2017-03-23 | 2018-10-11 | 東芝メモリ株式会社 | メモリシステムおよび不揮発性メモリの制御方法 |
| KR102708925B1 (ko) * | 2019-01-11 | 2024-09-25 | 에스케이하이닉스 주식회사 | 메모리 시스템에서의 유효 데이터 체크 방법 및 장치 |
| CN118605797A (zh) * | 2019-10-28 | 2024-09-06 | 华为技术有限公司 | 访问固态硬盘的方法及装置 |
| US11379359B2 (en) * | 2020-02-11 | 2022-07-05 | Micron Technology, Inc. | Selecting data transfer units associated with a data stream for garbage collection |
| KR102701111B1 (ko) | 2020-08-18 | 2024-09-02 | 에스케이하이닉스 주식회사 | 메모리 컨트롤러 및 그 동작 방법 |
| KR20220041593A (ko) | 2020-09-25 | 2022-04-01 | 에스케이하이닉스 주식회사 | 메모리 컨트롤러 및 그 동작 방법 |
| KR20220049329A (ko) | 2020-10-14 | 2022-04-21 | 삼성전자주식회사 | 스토리지 컨트롤러, 스토리지 장치, 및 스토리지 장치의 동작 방법 |
| US11500587B2 (en) | 2020-11-20 | 2022-11-15 | Samsung Electronics Co., Ltd. | System and method for in-SSD data processing engine selection based on stream IDs |
| US11822478B2 (en) * | 2021-04-16 | 2023-11-21 | Micron Technology, Inc. | Cache allocation techniques |
| US11907123B2 (en) | 2021-04-20 | 2024-02-20 | International Business Machines Corporation | Flash memory garbage collection |
| CN114327254A (zh) | 2021-11-16 | 2022-04-12 | 三星(中国)半导体有限公司 | 存储数据的方法和装置 |
| KR20230097866A (ko) * | 2021-12-24 | 2023-07-03 | 삼성전자주식회사 | 메모리 컨트롤러를 포함하는 스토리지 장치 및 스토리지 장치의 동작 방법 |
| US12260093B2 (en) * | 2022-12-28 | 2025-03-25 | Sk Hynix Nand Product Solutions Corp. | Systems and methods for eliminating garbage collection in solid-state drives (SSDs) |
| KR20250045776A (ko) | 2023-09-26 | 2025-04-02 | 삼성전자주식회사 | 스토리지 장치 및 이의 동작 방법 |
| WO2025244953A1 (en) * | 2024-05-22 | 2025-11-27 | Micron Technology, Inc. | Garbage collection with isolation of data placed according to flexible data placement by different reclaim unit handles |
| US12436882B1 (en) | 2024-06-25 | 2025-10-07 | Silicon Motion, Inc. | Control method of flash memory controller |
Family Cites Families (43)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5913049A (en) | 1997-07-31 | 1999-06-15 | Texas Instruments Incorporated | Multi-stream complex instruction set microprocessor |
| US7380067B2 (en) | 2004-07-19 | 2008-05-27 | Infortrend Technology, Inc. | IO-stream adaptive write caching policy adjustment |
| JP2006235960A (ja) | 2005-02-24 | 2006-09-07 | Fujitsu Ltd | ガーベッジコレクション高速化方法 |
| US20090119352A1 (en) | 2007-11-05 | 2009-05-07 | Steven Joseph Branda | Method for Optimizing Generational Garbage Collection Through Object Life Heuristics |
| US20090150556A1 (en) | 2007-12-06 | 2009-06-11 | Kim Moon J | Memory to storage communication for hybrid systems |
| US8429658B2 (en) | 2008-10-16 | 2013-04-23 | International Business Machines Corporation | Lock deferral for real-time garbage collection |
| EP2455865B1 (en) | 2009-07-17 | 2020-03-04 | Toshiba Memory Corporation | Memory management device |
| US8688894B2 (en) | 2009-09-03 | 2014-04-01 | Pioneer Chip Technology Ltd. | Page based management of flash storage |
| KR101643273B1 (ko) | 2010-04-09 | 2016-08-01 | 삼성전자주식회사 | 저장 매체에 데이터를 저장하는 방법, 그를 이용한 데이터 저장 장치, 및 그것을 포함한 시스템 |
| WO2012020544A1 (ja) | 2010-08-11 | 2012-02-16 | 日本電気株式会社 | データ処理システム、データ処理方法、およびプログラム |
| JP2012084127A (ja) | 2010-09-15 | 2012-04-26 | Toshiba Corp | 半導体装置 |
| US20120110239A1 (en) | 2010-10-27 | 2012-05-03 | Seagate Technology Llc | Causing Related Data to be Written Together to Non-Volatile, Solid State Memory |
| US9665304B2 (en) | 2011-09-07 | 2017-05-30 | Nec Corporation | Storage system with fast snapshot tree search |
| US10203881B2 (en) | 2011-12-19 | 2019-02-12 | Apple Inc. | Optimized execution of interleaved write operations in solid state drives |
| JP5723812B2 (ja) | 2012-03-16 | 2015-05-27 | 株式会社 日立産業制御ソリューションズ | ファイルサーバ、データ入出力方法、i/oフックモジュールプログラム及びi/o代行デーモンプログラム |
| US8886880B2 (en) | 2012-05-29 | 2014-11-11 | Dot Hill Systems Corporation | Write cache management method and apparatus |
| US20140122774A1 (en) * | 2012-10-31 | 2014-05-01 | Hong Kong Applied Science and Technology Research Institute Company Limited | Method for Managing Data of Solid State Storage with Data Attributes |
| US9158687B2 (en) | 2013-03-04 | 2015-10-13 | Dot Hill Systems Corporation | Method and apparatus for processing fast asynchronous streams |
| US20160196076A1 (en) | 2013-07-08 | 2016-07-07 | Wilus Institute Of Standards And Technology Inc. | Memory system and method for controlling same |
| KR102074329B1 (ko) | 2013-09-06 | 2020-02-06 | 삼성전자주식회사 | 데이터 저장 장치 및 그것의 데이터 처리 방법 |
| US9854270B2 (en) | 2013-12-19 | 2017-12-26 | Qualcomm Incorporated | Device and method for scalable coding of video information |
| US9459810B2 (en) | 2013-12-30 | 2016-10-04 | Sandisk Technologies Llc | Storage module and method for configuring command attributes |
| US8874835B1 (en) | 2014-01-16 | 2014-10-28 | Pure Storage, Inc. | Data placement based on data properties in a tiered storage device system |
| KR101544309B1 (ko) | 2014-02-26 | 2015-08-12 | 한양대학교 산학협력단 | 스트림 기반의 비휘발성 메모리 제어 방법 및 장치 |
| TWI554944B (zh) | 2014-06-20 | 2016-10-21 | 慧榮科技股份有限公司 | 快閃記憶體控制裝置、快閃記憶體控制系統以及快閃記憶體控制方法 |
| EP3021208B1 (en) | 2014-11-14 | 2019-01-09 | Dot Hill Systems Corporation | Method and apparatus for processing fast asynchronous streams |
| US9519429B2 (en) | 2014-12-09 | 2016-12-13 | Intel Corporation | Techniques to manage multiple sequential write streams to a solid state drive |
| US10409526B2 (en) * | 2014-12-17 | 2019-09-10 | Violin Systems Llc | Adaptive garbage collection |
| KR20160105624A (ko) | 2015-02-27 | 2016-09-07 | 에스케이하이닉스 주식회사 | 데이터 처리 시스템 및 그것의 동작 방법 |
| JP2016170583A (ja) * | 2015-03-12 | 2016-09-23 | 株式会社東芝 | メモリシステムおよび情報処理システム |
| US20160283124A1 (en) * | 2015-03-25 | 2016-09-29 | Kabushiki Kaisha Toshiba | Multi-streamed solid state drive |
| US9760281B2 (en) * | 2015-03-27 | 2017-09-12 | Intel Corporation | Sequential write stream management |
| US9996302B2 (en) | 2015-04-03 | 2018-06-12 | Toshiba Memory Corporation | Storage device writing data on the basis of stream |
| US10261725B2 (en) | 2015-04-10 | 2019-04-16 | Toshiba Memory Corporation | Storage system capable of invalidating data stored in a storage device thereof |
| US10013177B2 (en) | 2015-04-20 | 2018-07-03 | Hewlett Packard Enterprise Development Lp | Low write amplification in solid state drive |
| US9696935B2 (en) | 2015-04-24 | 2017-07-04 | Kabushiki Kaisha Toshiba | Storage device that secures a block for a stream or namespace and system having the storage device |
| US9594513B1 (en) | 2015-06-29 | 2017-03-14 | EMC IP Holding Company LLC | Data storage system with file system stream detection |
| KR102381343B1 (ko) | 2015-07-27 | 2022-03-31 | 삼성전자주식회사 | 스토리지 장치 및 상기 스토리지 장치의 동작 방법 |
| JP6403164B2 (ja) * | 2015-09-11 | 2018-10-10 | 東芝メモリ株式会社 | メモリシステム |
| US9880780B2 (en) | 2015-11-30 | 2018-01-30 | Samsung Electronics Co., Ltd. | Enhanced multi-stream operations |
| JP2018022275A (ja) * | 2016-08-02 | 2018-02-08 | 東芝メモリ株式会社 | 半導体記憶装置 |
| US10706105B2 (en) * | 2017-02-09 | 2020-07-07 | Micron Technology, Inc. | Merge tree garbage metrics |
| JP2018160195A (ja) * | 2017-03-23 | 2018-10-11 | 東芝メモリ株式会社 | メモリシステムおよび不揮発性メモリの制御方法 |
-
2017
- 2017-06-12 US US15/620,814 patent/US10698808B2/en active Active
-
2018
- 2018-02-13 KR KR1020180017428A patent/KR102615007B1/ko active Active
- 2018-03-05 TW TW107107148A patent/TWI771383B/zh active
- 2018-04-13 CN CN201810335530.XA patent/CN108733321B/zh active Active
- 2018-04-25 JP JP2018084363A patent/JP6893897B2/ja active Active
-
2020
- 2020-06-03 US US16/892,276 patent/US11194710B2/en active Active
-
2021
- 2021-12-06 US US17/543,710 patent/US11630767B2/en active Active
-
2023
- 2023-04-17 US US18/135,729 patent/US12332777B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| TW201839612A (zh) | 2018-11-01 |
| US12332777B2 (en) | 2025-06-17 |
| JP2018185815A (ja) | 2018-11-22 |
| US20220171701A1 (en) | 2022-06-02 |
| US10698808B2 (en) | 2020-06-30 |
| US11630767B2 (en) | 2023-04-18 |
| US11194710B2 (en) | 2021-12-07 |
| KR102615007B1 (ko) | 2023-12-18 |
| US20180307596A1 (en) | 2018-10-25 |
| CN108733321B (zh) | 2023-05-23 |
| CN108733321A (zh) | 2018-11-02 |
| KR20180119470A (ko) | 2018-11-02 |
| TWI771383B (zh) | 2022-07-21 |
| US20230333977A1 (en) | 2023-10-19 |
| US20200293443A1 (en) | 2020-09-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6893897B2 (ja) | ソリッドステートドライブ(ssd)、そのガーベッジコレクションに係る方法、及びその具現に係る物品 | |
| US9418002B1 (en) | Processing unit reclaiming requests in a solid state memory device | |
| CN106933747B (zh) | 基于多流的数据存储系统和数据存储方法 | |
| US10579267B2 (en) | Memory controller and memory system | |
| CN106133707B (zh) | 高速缓存管理 | |
| CN106843742A (zh) | 固态硬盘及其执行删除命令的方法 | |
| US8898414B2 (en) | Storage devices and methods of driving storage devices | |
| CN111796760A (zh) | 存储器系统及其操作方法 | |
| CN112684976A (zh) | 用于执行迁移操作的存储器系统及其操作方法 | |
| US11182329B2 (en) | Data processing system and operating method thereof | |
| KR101876574B1 (ko) | 데이터 입출력 컨트롤러 및 이를 포함하는 시스템 | |
| US20140108721A1 (en) | Data storage device and operating method thereof | |
| CN114610654B (zh) | 一种固态存储设备以及向其写入数据的方法 | |
| US20150121033A1 (en) | Information processing apparatus and data transfer control method | |
| KR101477776B1 (ko) | 플래시 메모리에서의 페이지 교체 방법 | |
| US7421536B2 (en) | Access control method, disk control unit and storage apparatus | |
| CN105320610B (zh) | 数据储存装置及操作数据储存装置的方法 | |
| US20240411472A1 (en) | Memory system, information processing device, information processing system, and method of relocating data | |
| KR101466493B1 (ko) | Ssd의 버퍼 제어 장치 및 방법 | |
| CN119229913A (zh) | NVMe控制器的NVMe读IO发起电路 | |
| CN105320605A (zh) | 数据储存器件及其操作方法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20210426 |
|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20210426 |
|
| A871 | Explanation of circumstances concerning accelerated examination |
Free format text: JAPANESE INTERMEDIATE CODE: A871 Effective date: 20210426 |
|
| 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: 20210525 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20210602 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 6893897 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |