JP6894928B2 - スペクトル及び非スペクトル物質分解を組み合わせることによる定量的撮像の精度及び分解能の向上 - Google Patents

スペクトル及び非スペクトル物質分解を組み合わせることによる定量的撮像の精度及び分解能の向上 Download PDF

Info

Publication number
JP6894928B2
JP6894928B2 JP2018563732A JP2018563732A JP6894928B2 JP 6894928 B2 JP6894928 B2 JP 6894928B2 JP 2018563732 A JP2018563732 A JP 2018563732A JP 2018563732 A JP2018563732 A JP 2018563732A JP 6894928 B2 JP6894928 B2 JP 6894928B2
Authority
JP
Japan
Prior art keywords
image data
spectral image
spectral
spatial frequency
material properties
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.)
Expired - Fee Related
Application number
JP2018563732A
Other languages
English (en)
Japanese (ja)
Other versions
JP2019520885A5 (enExample
JP2019520885A (ja
Inventor
ジョン エリック フレデンベルグ
ジョン エリック フレデンベルグ
カール エリック レナソン バーグレン
カール エリック レナソン バーグレン
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 JP2019520885A publication Critical patent/JP2019520885A/ja
Publication of JP2019520885A5 publication Critical patent/JP2019520885A5/ja
Application granted granted Critical
Publication of JP6894928B2 publication Critical patent/JP6894928B2/ja
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/42—Arrangements for detecting radiation specially adapted for radiation diagnosis
    • A61B6/4208—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector
    • A61B6/4241—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector using energy resolving detectors, e.g. photon counting
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/03—Computed tomography [CT]
    • A61B6/032—Transmission computed tomography [CT]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/48—Diagnostic techniques
    • A61B6/482—Diagnostic techniques involving multiple energy imaging
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/48—Diagnostic techniques
    • A61B6/484—Diagnostic techniques involving phase contrast X-ray imaging
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/52—Devices using data or image processing specially adapted for radiation diagnosis
    • A61B6/5205—Devices using data or image processing specially adapted for radiation diagnosis involving processing of raw data to produce diagnostic data
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/52—Devices using data or image processing specially adapted for radiation diagnosis
    • A61B6/5211—Devices using data or image processing specially adapted for radiation diagnosis involving processing of medical diagnostic data
    • A61B6/5229—Devices using data or image processing specially adapted for radiation diagnosis involving processing of medical diagnostic data combining image data of a patient, e.g. combining a functional image with an anatomical image
    • A61B6/5235—Devices using data or image processing specially adapted for radiation diagnosis involving processing of medical diagnostic data combining image data of a patient, e.g. combining a functional image with an anatomical image combining images from the same or different ionising radiation imaging techniques, e.g. PET and CT
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
    • G01N23/044—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material using laminography or tomosynthesis
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/06—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption
    • G01N23/083—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption the radiation being X-rays
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/29—Measurement performed on radiation beams, e.g. position or section of the beam; Measurement of spatial distribution of radiation
    • G01T1/2914—Measurement of spatial distribution of radiation
    • G01T1/2985—In depth localisation, e.g. using positron emitters; Tomographic imaging (longitudinal and transverse section imaging; apparatus for radiation diagnosis sequentially in different planes, steroscopic radiation diagnosis)
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/025—Tomosynthesis
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/50—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications
    • A61B6/502—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications for diagnosis of breast, i.e. mammography
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/30—Accessories, mechanical or electrical features
    • G01N2223/33—Accessories, mechanical or electrical features scanning, i.e. relative motion for measurement of successive object-parts
    • G01N2223/3303—Accessories, mechanical or electrical features scanning, i.e. relative motion for measurement of successive object-parts object fixed; source and detector move
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/40—Imaging
    • G01N2223/401—Imaging image processing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/40—Imaging
    • G01N2223/41—Imaging imaging specifically internal structure
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/40—Imaging
    • G01N2223/419—Imaging computed tomograph
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/60—Specific applications or type of materials
    • G01N2223/612—Specific applications or type of materials biological material
    • G01N2223/6126—Specific applications or type of materials biological material tissue

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Optics & Photonics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biophysics (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • General Physics & Mathematics (AREA)
  • Biochemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Immunology (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Toxicology (AREA)
  • Theoretical Computer Science (AREA)
  • Pulmonology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
JP2018563732A 2016-06-07 2017-05-31 スペクトル及び非スペクトル物質分解を組み合わせることによる定量的撮像の精度及び分解能の向上 Expired - Fee Related JP6894928B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP16173360 2016-06-07
EP16173360.5 2016-06-07
PCT/EP2017/063079 WO2017211625A1 (en) 2016-06-07 2017-05-31 Improved precision and resolution of quantitative imaging by combining spectral and non-spectral material decomposition

Publications (3)

Publication Number Publication Date
JP2019520885A JP2019520885A (ja) 2019-07-25
JP2019520885A5 JP2019520885A5 (enExample) 2020-01-30
JP6894928B2 true JP6894928B2 (ja) 2021-06-30

Family

ID=56119348

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2018563732A Expired - Fee Related JP6894928B2 (ja) 2016-06-07 2017-05-31 スペクトル及び非スペクトル物質分解を組み合わせることによる定量的撮像の精度及び分解能の向上

Country Status (5)

Country Link
US (1) US10561378B2 (enExample)
EP (1) EP3429474B1 (enExample)
JP (1) JP6894928B2 (enExample)
CN (1) CN109195526B (enExample)
WO (1) WO2017211625A1 (enExample)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6894928B2 (ja) * 2016-06-07 2021-06-30 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． スペクトル及び非スペクトル物質分解を組み合わせることによる定量的撮像の精度及び分解能の向上
DK3488414T3 (da) * 2016-07-19 2020-06-22 Volpara Health Tech Limited System og apparat til klinisk beslutningsoptimering
JP7224115B2 (ja) * 2018-06-12 2023-02-17 キヤノンメディカルシステムズ株式会社 乳房用ｘ線撮影装置及びプログラム
FR3082945B1 (fr) 2018-06-22 2020-06-05 Commissariat A L'energie Atomique Et Aux Energies Alternatives Procede de caracterisation d'un objet par imagerie spectrale
WO2020002174A1 (en) * 2018-06-29 2020-01-02 Koninklijke Philips N.V. Imaging system configured to generate non-spectral volumetric image data from a kvp switching multi-energy acquisition
JP7373323B2 (ja) * 2019-09-02 2023-11-02 キヤノン株式会社 画像処理装置、放射線撮像システム、画像処理方法及びプログラム
CA3159717A1 (en) 2019-11-27 2021-06-03 Karim Karim Method and apparatus for spectral adjustment in digital x-ray imaging
JP7321359B2 (ja) * 2020-03-18 2023-08-04 富士フイルム株式会社 画像処理装置、方法およびプログラム
EP3922178A1 (en) * 2020-06-08 2021-12-15 Koninklijke Philips N.V. Spectral dark-field imaging
GB202010219D0 (en) * 2020-07-03 2020-08-19 Volpara Health Tech Limited A system and method for the quantification of contrast agent

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0659280B2 (ja) * 1989-04-19 1994-08-10 松下電器産業株式会社 Ｘ線画像処理装置
JP2640582B2 (ja) * 1991-04-18 1997-08-13 富士写真フイルム株式会社 エネルギーサブトラクション画像生成方法
US7668289B2 (en) 2005-04-29 2010-02-23 Koninklijke Philips Electronics N.V. Energy-resolved photon counting for CT
US7372934B2 (en) * 2005-12-22 2008-05-13 General Electric Company Method for performing image reconstruction using hybrid computed tomography detectors
JP4895204B2 (ja) * 2007-03-22 2012-03-14 富士フイルム株式会社 画像成分分離装置、方法、およびプログラム、ならびに、正常画像生成装置、方法、およびプログラム
DE102008034314B4 (de) * 2008-07-23 2016-07-07 Siemens Healthcare Gmbh Computersystem zur Differenzierung und Darstellung bewegter und unbewegter Herzregionen eines Patienten in der Röntgen-CT
DE102009010501A1 (de) * 2009-02-25 2010-09-09 Siemens Aktiengesellschaft Verfahren zur Rauschreduktion von CT-Bilddaten und Bildbearbeitungssystem
DE102009036232A1 (de) * 2009-08-05 2011-02-17 Siemens Aktiengesellschaft CT-Bildrekonstruktion für eine verbesserte Zeitauflösung in der Cardio-CT
JP5611663B2 (ja) * 2010-05-17 2014-10-22 株式会社東芝 Ｘ線コンピュータ断層撮影装置及び画像処理装置
KR101486776B1 (ko) * 2010-07-29 2015-01-29 삼성전자주식회사 영상 처리 방법 및 장치와 이를 채용한 의료영상시스템
EP2745265B1 (en) * 2011-08-19 2018-07-18 Koninklijke Philips N.V. Frequency dependent combination of x-ray images of different modalities
DE102011083727B4 (de) * 2011-09-29 2021-12-30 Siemens Healthcare Gmbh Verfahren zur Erzeugung eines rauschreduzierten CT-Bilddatensatzes, Rechensystem und CT-System
WO2013076662A1 (en) 2011-11-25 2013-05-30 Koninklijke Philips Electronics N.V. Spectral image processing in x-ray imaging
US9600866B2 (en) * 2012-11-26 2017-03-21 Koninklijke Philips N.V. Projection data de-noising
WO2014176328A1 (en) 2013-04-23 2014-10-30 Virginia Tech Intellectual Properties, Inc. Hybrid detector modules and dynamic thresholding for spectral ct
JP6305692B2 (ja) * 2013-05-28 2018-04-04 キヤノンメディカルシステムズ株式会社 Ｘ線診断装置
CN105408940B (zh) 2013-07-23 2019-09-03 皇家飞利浦有限公司 混合式(谱/非谱)成像探测器阵列和对应的处理电子设备
US9905003B2 (en) * 2013-11-20 2018-02-27 Koninklijke Philips N.V. Processing dual energy spectral mammography images
US20150178957A1 (en) 2013-12-20 2015-06-25 Toshiba Medical Systems Corporation Iterative reconstruction for spectral ct based upon combined data of full views of intensity data and sparse views of spectral data
US9449385B2 (en) 2014-06-02 2016-09-20 Toshiba Medical Systems Corporation Reconstruction of computed tomography images using combined third-generation and fourth-generation projection data
JP6708561B2 (ja) * 2014-06-27 2020-06-10 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． 放射線信号の処理方法、当該方法を実施する信号処理装置、コンピュータプログラム、当該プログラムを記憶したコンピュータ可読媒体
JP6165809B2 (ja) * 2014-09-19 2017-07-19 富士フイルム株式会社 断層画像生成装置、方法およびプログラム
JP6766045B2 (ja) * 2014-11-20 2020-10-07 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． トモシンセシスデータから合成マンモグラムを生成する方法
DE102015208905A1 (de) * 2015-05-13 2016-11-17 Siemens Healthcare Gmbh Verfahren zum Erzeugen eines Bildes
JP6894928B2 (ja) * 2016-06-07 2021-06-30 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． スペクトル及び非スペクトル物質分解を組み合わせることによる定量的撮像の精度及び分解能の向上

Also Published As

Publication number Publication date
EP3429474B1 (en) 2019-07-10
US10561378B2 (en) 2020-02-18
CN109195526A (zh) 2019-01-11
WO2017211625A1 (en) 2017-12-14
EP3429474A1 (en) 2019-01-23
JP2019520885A (ja) 2019-07-25
US20190159741A1 (en) 2019-05-30
CN109195526B (zh) 2020-08-14

Similar Documents

Publication Publication Date Title
JP6894928B2 (ja) スペクトル及び非スペクトル物質分解を組み合わせることによる定量的撮像の精度及び分解能の向上
JP6999576B2 (ja) 空間とスペクトル情報に基づく複数エネルギーのｃｔ画像におけるノイズ制御のためのシステムと方法
US8855395B2 (en) Conditional likelihood material decomposition and methods of using the same
AU2003290665B2 (en) Apparatus and method for cone beam volume computed tomography breast imaging
CN103649990B (zh) 用于谱ct的图像处理
US20090262893A1 (en) Methods and apparatus for obtaining low-dose imaging
AU1581401A (en) Apparatus and method for cone beam volume computed tomography breast imaging
KR20190015084A (ko) 단층 영상 처리 장치 및 방법
Yaffe et al. Digital tomosynthesis: technique
Sundell et al. A phantom study comparing technical image quality of five breast tomosynthesis systems
Vorbau et al. Task-based image quality assessment of an intraoperative CBCT for spine surgery compared with conventional CT
JP6209688B2 (ja) トモシンセシスイメージングのための装置及び方法
Huang Improving breast cancer detection for dense breasts using digital breast tomosynthesis and contrast-enhanced digital breast tomosynthesis
Glick et al. Imaging of the breast with photon-counting detectors
Ikejimba et al. Task-based strategy for optimized contrast enhanced breast imaging: analysis of six imaging techniques for mammography and tomosynthesis
Yoon et al. Analysis of lung nodule detectability and anatomical clutter in tomosynthesis imaging of the chest
US20250131558A1 (en) Improved water map calculation in spectral x-ray
Andria et al. Image quality evaluation of breast tomosynthesis
US7020240B2 (en) Method and apparatus for measuring matter properties
O'Connor et al. Characterization of a prototype tabletop x-ray CT breast imaging system
Donato et al. Comparison of three reconstruction algorithms for low‐dose phase‐contrast computed tomography of the breast with synchrotron radiation
Duan Development of Advanced Imaging Techniques for Improving Breast Cancer Screening and Diagnosis
Wu Image Quality of Digital Breast Tomosynthesis: Optimization in Image Acquisition and Reconstruction
Mertelmeier et al. 3D breast tomosynthesis–intelligent technology for clear clinical benefits
Partain et al. Iodine contrast cone-beam CT imaging of breast cancer

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20191210

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20191210

A871 Explanation of circumstances concerning accelerated examination

Free format text: JAPANESE INTERMEDIATE CODE: A871

Effective date: 20191210

A975 Report on accelerated examination

Free format text: JAPANESE INTERMEDIATE CODE: A971005

Effective date: 20200123

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20200204

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20200706

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20201105

C60 Trial request (containing other claim documents, opposition documents)

Free format text: JAPANESE INTERMEDIATE CODE: C60

Effective date: 20201105

A911 Transfer to examiner for re-examination before appeal (zenchi)

Free format text: JAPANESE INTERMEDIATE CODE: A911

Effective date: 20201113

C21 Notice of transfer of a case for reconsideration by examiners before appeal proceedings

Free format text: JAPANESE INTERMEDIATE CODE: C21

Effective date: 20201124

A912 Re-examination (zenchi) completed and case transferred to appeal board

Free format text: JAPANESE INTERMEDIATE CODE: A912

Effective date: 20201204

C211 Notice of termination of reconsideration by examiners before appeal proceedings

Free format text: JAPANESE INTERMEDIATE CODE: C211

Effective date: 20201208

C22 Notice of designation (change) of administrative judge

Free format text: JAPANESE INTERMEDIATE CODE: C22

Effective date: 20210108

C23 Notice of termination of proceedings

Free format text: JAPANESE INTERMEDIATE CODE: C23

Effective date: 20210401

C03 Trial/appeal decision taken

Free format text: JAPANESE INTERMEDIATE CODE: C03

Effective date: 20210507

C30A Notification sent

Free format text: JAPANESE INTERMEDIATE CODE: C3012

Effective date: 20210507

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20210604

R150 Certificate of patent or registration of utility model

Ref document number: 6894928

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

LAPS Cancellation because of no payment of annual fees