JP7420802B2 - 磁気共鳴イメージングにおける他の処理ロケーションの決定 - Google Patents

磁気共鳴イメージングにおける他の処理ロケーションの決定 Download PDF

Info

Publication number
JP7420802B2
JP7420802B2 JP2021525554A JP2021525554A JP7420802B2 JP 7420802 B2 JP7420802 B2 JP 7420802B2 JP 2021525554 A JP2021525554 A JP 2021525554A JP 2021525554 A JP2021525554 A JP 2021525554A JP 7420802 B2 JP7420802 B2 JP 7420802B2
Authority
JP
Japan
Prior art keywords
magnetic resonance
location
imaging system
processing location
resonance imaging
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
Application number
JP2021525554A
Other languages
English (en)
Japanese (ja)
Other versions
JP2022507136A (ja
JP2022507136A5 (https=
Inventor
カールステン ソマー
マイケル グンター ヘル
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips NV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Koninklijke Philips NV filed Critical Koninklijke Philips NV
Publication of JP2022507136A publication Critical patent/JP2022507136A/ja
Publication of JP2022507136A5 publication Critical patent/JP2022507136A5/ja
Priority to JP2023211846A priority Critical patent/JP2024041762A/ja
Application granted granted Critical
Publication of JP7420802B2 publication Critical patent/JP7420802B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48—NMR imaging systems
    • G01R33/54—Signal processing systems, e.g. using pulse sequences ; Generation or control of pulse sequences; Operator console
    • G01R33/543—Control of the operation of the MR system, e.g. setting of acquisition parameters prior to or during MR data acquisition, dynamic shimming, use of one or more scout images for scan plane prescription
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48—NMR imaging systems
    • G01R33/54—Signal processing systems, e.g. using pulse sequences ; Generation or control of pulse sequences; Operator console
    • G01R33/546—Interface between the MR system and the user, e.g. for controlling the operation of the MR system or for the design of pulse sequences
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48—NMR imaging systems
    • G01R33/54—Signal processing systems, e.g. using pulse sequences ; Generation or control of pulse sequences; Operator console
    • G01R33/56—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution
    • G01R33/5608—Data processing and visualization specially adapted for MR, e.g. for feature analysis and pattern recognition on the basis of measured MR data, segmentation of measured MR data, edge contour detection on the basis of measured MR data, for enhancing measured MR data in terms of signal-to-noise ratio by means of noise filtering or apodization, for enhancing measured MR data in terms of resolution by means for deblurring, windowing, zero filling, or generation of gray-scaled images, colour-coded images or images displaying vectors instead of pixels
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48—NMR imaging systems
    • G01R33/54—Signal processing systems, e.g. using pulse sequences ; Generation or control of pulse sequences; Operator console
    • G01R33/56—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution
    • G01R33/563—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution of moving material, e.g. flow contrast angiography
    • G01R33/56308—Characterization of motion or flow; Dynamic imaging
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48—NMR imaging systems
    • G01R33/54—Signal processing systems, e.g. using pulse sequences ; Generation or control of pulse sequences; Operator console
    • G01R33/56—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution
    • G01R33/563—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution of moving material, e.g. flow contrast angiography
    • G01R33/56366—Perfusion imaging
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06N—COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS
    • G06N3/00—Computing arrangements based on biological models
    • G06N3/02—Neural networks
    • G06N3/04—Architecture, e.g. interconnection topology
    • G06N3/045—Combinations of networks
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06N—COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS
    • G06N3/00—Computing arrangements based on biological models
    • G06N3/02—Neural networks
    • G06N3/04—Architecture, e.g. interconnection topology
    • G06N3/0464—Convolutional networks [CNN, ConvNet]
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06N—COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS
    • G06N3/00—Computing arrangements based on biological models
    • G06N3/02—Neural networks
    • G06N3/08—Learning methods
    • G06N3/084—Backpropagation, e.g. using gradient descent
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06N—COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS
    • G06N3/00—Computing arrangements based on biological models
    • G06N3/02—Neural networks
    • G06N3/08—Learning methods
    • G06N3/09—Supervised learning
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/0002—Inspection of images, e.g. flaw detection
    • G06T7/0012—Biomedical image inspection
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/70—Arrangements for image or video recognition or understanding using pattern recognition or machine learning
    • G06V10/764—Arrangements for image or video recognition or understanding using pattern recognition or machine learning using classification, e.g. of video objects
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/70—Arrangements for image or video recognition or understanding using pattern recognition or machine learning
    • G06V10/82—Arrangements for image or video recognition or understanding using pattern recognition or machine learning using neural networks
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10072—Tomographic images
    • G06T2207/10088—Magnetic resonance imaging [MRI]
    • G06T2207/10096—Dynamic contrast-enhanced magnetic resonance imaging [DCE-MRI]
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20081—Training; Learning
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20084—Artificial neural networks [ANN]
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20092—Interactive image processing based on input by user
    • G06T2207/20101—Interactive definition of point of interest, landmark or seed
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/30—Subject of image; Context of image processing
    • G06T2207/30004—Biomedical image processing
    • G06T2207/30016—Brain
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V2201/00—Indexing scheme relating to image or video recognition or understanding
    • G06V2201/03—Recognition of patterns in medical or anatomical images

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Artificial Intelligence (AREA)
  • Evolutionary Computation (AREA)
  • Signal Processing (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Computing Systems (AREA)
  • Software Systems (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Radiology & Medical Imaging (AREA)
  • Medical Informatics (AREA)
  • Multimedia (AREA)
  • Databases & Information Systems (AREA)
  • Mathematical Physics (AREA)
  • General Engineering & Computer Science (AREA)
  • Molecular Biology (AREA)
  • Data Mining & Analysis (AREA)
  • Computational Linguistics (AREA)
  • Biophysics (AREA)
  • Biomedical Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Vascular Medicine (AREA)
  • Quality & Reliability (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
JP2021525554A 2018-11-20 2019-11-19 磁気共鳴イメージングにおける他の処理ロケーションの決定 Active JP7420802B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2023211846A JP2024041762A (ja) 2018-11-20 2023-12-15 磁気共鳴イメージングにおける他の処理ロケーションの決定

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP18207254.6 2018-11-20
EP18207254.6A EP3657393A1 (en) 2018-11-20 2018-11-20 Determination of a further processing location in magnetic resonance imaging
PCT/EP2019/081797 WO2020104455A1 (en) 2018-11-20 2019-11-19 Determination of a further processing location in magnetic resonance imaging

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2023211846A Division JP2024041762A (ja) 2018-11-20 2023-12-15 磁気共鳴イメージングにおける他の処理ロケーションの決定

Publications (3)

Publication Number Publication Date
JP2022507136A JP2022507136A (ja) 2022-01-18
JP2022507136A5 JP2022507136A5 (https=) 2022-11-18
JP7420802B2 true JP7420802B2 (ja) 2024-01-23

Family

ID=64402087

Family Applications (2)

Application Number Title Priority Date Filing Date
JP2021525554A Active JP7420802B2 (ja) 2018-11-20 2019-11-19 磁気共鳴イメージングにおける他の処理ロケーションの決定
JP2023211846A Pending JP2024041762A (ja) 2018-11-20 2023-12-15 磁気共鳴イメージングにおける他の処理ロケーションの決定

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP2023211846A Pending JP2024041762A (ja) 2018-11-20 2023-12-15 磁気共鳴イメージングにおける他の処理ロケーションの決定

Country Status (5)

Country Link
US (1) US12111373B2 (https=)
EP (2) EP3657393A1 (https=)
JP (2) JP7420802B2 (https=)
CN (1) CN113168539B (https=)
WO (1) WO2020104455A1 (https=)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10210956B2 (en) 2012-10-24 2019-02-19 Cathworks Ltd. Diagnostically useful results in real time
JP7036742B2 (ja) 2016-05-16 2022-03-15 キャスワークス リミテッド 血管評価システム
JP7532402B2 (ja) 2019-04-01 2024-08-13 キャスワークス リミテッド 血管造影画像選択のための方法および装置
EP4033964B1 (en) 2019-09-23 2025-04-09 Cathworks Ltd. Methods, apparatus, and system for synchronization between a three-dimensional vascular model and an imaging device
US12315076B1 (en) 2021-09-22 2025-05-27 Cathworks Ltd. Four-dimensional motion analysis of a patient's coronary arteries and myocardial wall
KR20240148399A (ko) 2022-02-10 2024-10-11 캐스웍스 엘티디. 기계 학습 기반 센서 분석 및 혈관 트리 분할을 위한 시스템 및 방법
US20250152252A1 (en) * 2022-02-23 2025-05-15 Covidien Lp Mri based navigation
IL326432A (en) 2023-08-09 2026-04-01 Cathworks Ltd Coronary artery assessment after PCI
CN121942048A (zh) 2023-08-09 2026-04-28 凯思沃克斯有限公司 针对血管指数测量的增强用户界面和串扰分析
US12512196B2 (en) 2024-06-12 2025-12-30 Cathworks Ltd. Systems and methods for secure sharing of cardiac assessments using QR codes

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005028017A (ja) 2003-07-11 2005-02-03 Hitachi Medical Corp 磁気共鳴イメージング装置
WO2007043462A1 (ja) 2005-10-12 2007-04-19 Tokyo Denki University 脳機能解析方法および脳機能解析プログラム
JP2012061074A (ja) 2010-09-15 2012-03-29 Ge Medical Systems Global Technology Co Llc 磁気共鳴イメージング装置
WO2013027540A1 (ja) 2011-08-25 2013-02-28 株式会社日立メディコ 医用画像撮影装置
JP2013090799A (ja) 2011-10-26 2013-05-16 Fujifilm Corp 画像処理装置および方法並びにプログラム
JP2016189979A (ja) 2015-03-31 2016-11-10 東芝メディカルシステムズ株式会社 磁気共鳴イメージング装置
JP2017506997A (ja) 2014-01-17 2017-03-16 アーテリーズ インコーポレイテッド ４次元（４ｄ）フロー磁気共鳴画像化のための装置、方法、および物品
WO2017106469A1 (en) 2015-12-15 2017-06-22 The Regents Of The University Of California Systems and methods for analyzing perfusion-weighted medical imaging using deep neural networks
JP2017528262A (ja) 2014-09-26 2017-09-28 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． シングルボクセル分光法のための撮像システム

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2856479B2 (ja) * 1990-02-27 1999-02-10 株式会社東芝 磁気共鳴診断装置
JP3641495B2 (ja) * 1994-07-19 2005-04-20 株式会社日立メディコ 医用画像診断装置
EP1881453A3 (en) * 2006-07-18 2009-07-22 Kabushiki Kaisha Toshiba A medical image-processing apparatus and a method for processing medical images
US7961922B2 (en) * 2007-05-31 2011-06-14 The Board Of Regents Of The University Of Texas System Systems and methods for processing medical image data to facilitate comparisons among groups of subjects
WO2010052629A1 (en) * 2008-11-05 2010-05-14 Koninklijke Philips Electronics N.V. Automated sequential planning of mr scans
WO2010055405A2 (en) * 2008-11-14 2010-05-20 Apollo Medical Imaging Technology Pty Ltd Method and system for mapping tissue status of acute stroke
JP5479115B2 (ja) * 2010-01-07 2014-04-23 株式会社東芝 画像処理装置及び磁気共鳴イメージング装置
US11074495B2 (en) * 2013-02-28 2021-07-27 Z Advanced Computing, Inc. (Zac) System and method for extremely efficient image and pattern recognition and artificial intelligence platform
JP5977158B2 (ja) * 2012-11-30 2016-08-24 ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー 検出装置、磁気共鳴装置、検出方法、およびプログラム
DE102012222073B4 (de) * 2012-12-03 2014-12-18 Siemens Aktiengesellschaft Verfahren zur Auswertung von Bilddatensätzen und Kombinationsbildaufnahmeeinrichtung
CA2933684A1 (en) * 2012-12-14 2014-06-19 The Trustees Of Columbia University In The City Of New York Markerless tracking of robotic surgical tools
US9775557B2 (en) * 2013-04-03 2017-10-03 Vanderbilt University Quantifying breast tissue changes with spectrally selective MRI and MRS
US10444277B2 (en) * 2014-01-03 2019-10-15 Koninklijke Philips N.V. Calculation of the probability of gradient coil amplifier failure using environment data
JP5847247B2 (ja) * 2014-07-14 2016-01-20 株式会社東芝 磁気共鳴イメージング装置
US20190150764A1 (en) 2016-05-02 2019-05-23 The Regents Of The University Of California System and Method for Estimating Perfusion Parameters Using Medical Imaging
US11137462B2 (en) * 2016-06-10 2021-10-05 Board Of Trustees Of Michigan State University System and method for quantifying cell numbers in magnetic resonance imaging (MRI)
US10845444B2 (en) * 2017-01-17 2020-11-24 The General Hospital Corporation System and method for magnetic resonance fingerprinting using neural networks trained with sparsely sampled dictionaries
CN108596904B (zh) * 2018-05-07 2020-09-29 北京长木谷医疗科技有限公司 生成定位模型的方法及对脊柱矢状位图像进行处理的方法

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005028017A (ja) 2003-07-11 2005-02-03 Hitachi Medical Corp 磁気共鳴イメージング装置
WO2007043462A1 (ja) 2005-10-12 2007-04-19 Tokyo Denki University 脳機能解析方法および脳機能解析プログラム
JP2012061074A (ja) 2010-09-15 2012-03-29 Ge Medical Systems Global Technology Co Llc 磁気共鳴イメージング装置
WO2013027540A1 (ja) 2011-08-25 2013-02-28 株式会社日立メディコ 医用画像撮影装置
JP2013090799A (ja) 2011-10-26 2013-05-16 Fujifilm Corp 画像処理装置および方法並びにプログラム
JP2017506997A (ja) 2014-01-17 2017-03-16 アーテリーズ インコーポレイテッド ４次元（４ｄ）フロー磁気共鳴画像化のための装置、方法、および物品
JP2017528262A (ja) 2014-09-26 2017-09-28 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． シングルボクセル分光法のための撮像システム
JP2016189979A (ja) 2015-03-31 2016-11-10 東芝メディカルシステムズ株式会社 磁気共鳴イメージング装置
WO2017106469A1 (en) 2015-12-15 2017-06-22 The Regents Of The University Of California Systems and methods for analyzing perfusion-weighted medical imaging using deep neural networks

Also Published As

Publication number Publication date
EP3884429B1 (en) 2025-03-26
EP3884429A1 (en) 2021-09-29
JP2024041762A (ja) 2024-03-27
JP2022507136A (ja) 2022-01-18
CN113168539B (zh) 2024-09-13
US12111373B2 (en) 2024-10-08
CN113168539A (zh) 2021-07-23
WO2020104455A1 (en) 2020-05-28
US20220012876A1 (en) 2022-01-13
EP3657393A1 (en) 2020-05-27

Similar Documents

Publication Publication Date Title
JP7420802B2 (ja) 磁気共鳴イメージングにおける他の処理ロケーションの決定
EP3514756A1 (en) Medical analysis method for predicting metastases in a test tissue sample
US11333732B2 (en) Automatic artifact detection and pulse sequence modification in magnetic resonance imaging
EP3718076B1 (en) Combination of temporally resolved angiographic images with a spatially resolved angiographic image
CN111356930A (zh) 人工智能实现的解剖界标定位
WO2015140277A1 (en) Control of magnetic resonance imaging acquisition using modeling
JP7391112B2 (ja) 磁気共鳴イメージングのための自動的な視野整列
JP2023548854A (ja) 磁気共鳴イメージングにおける高周波パルス及び勾配パルスのリアルタイム設計
JP7798173B2 (ja) 医用イメージング用のサリエンシーマップ
JP7493671B2 (ja) 磁気共鳴撮像における画像強度補正
EP4306983A1 (en) Making anatomical measurements using magnetic resonance imaging
EP4321890A1 (en) Reconstruction parameter determination for the reconstruction of synthesized magnetic resonance images
JP2025507263A (ja) ニューラルネットワークによる磁気共鳴画像における人工構造の検出

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20221110

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20221110

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20230519

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20230622

A601 Written request for extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A601

Effective date: 20230921

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20231215

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: 20231226

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20240111

R150 Certificate of patent or registration of utility model

Ref document number: 7420802

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150