JP7847545B2 - 非水電解質二次電池用バインダー、電極合剤、電極、および非水電解質二次電池 - Google Patents

非水電解質二次電池用バインダー、電極合剤、電極、および非水電解質二次電池

Info

Publication number
JP7847545B2
JP7847545B2 JP2022578400A JP2022578400A JP7847545B2 JP 7847545 B2 JP7847545 B2 JP 7847545B2 JP 2022578400 A JP2022578400 A JP 2022578400A JP 2022578400 A JP2022578400 A JP 2022578400A JP 7847545 B2 JP7847545 B2 JP 7847545B2
Authority
JP
Japan
Prior art keywords
general formula
binder
group
vinylidene fluoride
electrolyte secondary
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
JP2022578400A
Other languages
English (en)
Japanese (ja)
Other versions
JPWO2022163631A5 (https=
JPWO2022163631A1 (https=
Inventor
春樹 斎藤
佳余子 岡田
泰史 池山
正孝 上遠野
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.)
Kureha Corp
Original Assignee
Kureha Corp
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 Kureha Corp filed Critical Kureha Corp
Publication of JPWO2022163631A1 publication Critical patent/JPWO2022163631A1/ja
Publication of JPWO2022163631A5 publication Critical patent/JPWO2022163631A5/ja
Application granted granted Critical
Publication of JP7847545B2 publication Critical patent/JP7847545B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F114/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
    • C08F114/18—Monomers containing fluorine
    • C08F114/22—Vinylidene fluoride
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F14/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
    • C08F14/18—Monomers containing fluorine
    • C08F14/22—Vinylidene fluoride
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F214/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
    • C08F214/18—Monomers containing fluorine
    • C08F214/22—Vinylidene fluoride
    • C08F214/225—Vinylidene fluoride with non-fluorinated comonomers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/06—Ethers; Acetals; Ketals; Ortho-esters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/10—Esters; Ether-esters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/10—Esters; Ether-esters
    • C08K5/101—Esters; Ether-esters of monocarboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/10—Esters; Ether-esters
    • C08K5/12—Esters; Ether-esters of cyclic polycarboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/13—Phenols; Phenolates
    • C08K5/134—Phenols containing ester groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/15—Heterocyclic compounds having oxygen in the ring
    • C08K5/151—Heterocyclic compounds having oxygen in the ring having one oxygen atom in the ring
    • C08K5/1515—Three-membered rings
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/29—Compounds containing one or more carbon-to-nitrogen double bonds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/49—Phosphorus-containing compounds
    • C08K5/51—Phosphorus bound to oxygen
    • C08K5/52—Phosphorus bound to oxygen only
    • C08K5/521—Esters of phosphoric acids, e.g. of H3PO4
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/49—Phosphorus-containing compounds
    • C08K5/51—Phosphorus bound to oxygen
    • C08K5/52—Phosphorus bound to oxygen only
    • C08K5/524—Esters of phosphorous acids, e.g. of H3PO3
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
    • C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/12—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C08L27/16—Homopolymers or copolymers or vinylidene fluoride
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
    • C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
    • C09D127/12—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C09D127/16—Homopolymers or copolymers of vinylidene fluoride
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • H01M4/621—Binders
    • H01M4/622—Binders being polymers
    • H01M4/623—Binders being polymers fluorinated polymers
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Battery Electrode And Active Subsutance (AREA)
JP2022578400A 2021-01-29 2022-01-25 非水電解質二次電池用バインダー、電極合剤、電極、および非水電解質二次電池 Active JP7847545B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2021013550 2021-01-29
JP2021013550 2021-01-29
PCT/JP2022/002610 WO2022163631A1 (ja) 2021-01-29 2022-01-25 非水電解質二次電池用バインダー、電極合剤、電極、および非水電解質二次電池

Publications (3)

Publication Number Publication Date
JPWO2022163631A1 JPWO2022163631A1 (https=) 2022-08-04
JPWO2022163631A5 JPWO2022163631A5 (https=) 2023-09-19
JP7847545B2 true JP7847545B2 (ja) 2026-04-17

Family

ID=82654559

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2022578400A Active JP7847545B2 (ja) 2021-01-29 2022-01-25 非水電解質二次電池用バインダー、電極合剤、電極、および非水電解質二次電池

Country Status (6)

Country Link
US (1) US20240322179A1 (https=)
EP (1) EP4287324A4 (https=)
JP (1) JP7847545B2 (https=)
KR (1) KR102924707B1 (https=)
CN (1) CN116762193A (https=)
WO (1) WO2022163631A1 (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117638068A (zh) * 2022-08-30 2024-03-01 宁德时代新能源科技股份有限公司 粘结剂、制备方法、正极浆料、二次电池、电池模块、电池包及用电装置

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000256616A (ja) 1999-03-09 2000-09-19 Hitachi Ltd 非水溶媒系バインダ組成物、該組成物を形成した電極および非水溶媒系二次電池
JP2001015156A (ja) 1999-06-30 2001-01-19 Sony Corp 非水電解質電池
JP2002075337A (ja) 2000-09-04 2002-03-15 Matsushita Electric Ind Co Ltd 極板の製造方法
JP2002529891A (ja) 1998-11-04 2002-09-10 ビーエーエスエフ アクチェンゲゼルシャフト 複合材料及び電気化学電池
US20060064868A1 (en) 2004-09-24 2006-03-30 Yu-Ta Tu Method for producing a lithium polymeric battery cell
JP2011014457A (ja) 2009-07-03 2011-01-20 Nippon Shokubai Co Ltd 非水二次電池用正極組成物
JP2012048917A (ja) 2010-08-25 2012-03-08 Sony Corp 正極および非水電解質電池、並びに正極合剤および結着剤
JP2012238396A (ja) 2011-05-09 2012-12-06 Shin Etsu Chem Co Ltd 負極ペースト、負極電極及びその製造方法、並びに非水電解質二次電池
JP2013058376A (ja) 2011-09-08 2013-03-28 Toyota Motor Corp 固体電解質粒子、固体電解質膜、固体電解質粒子の製造方法
JP2014523084A (ja) 2011-07-04 2014-09-08 ユニベルシテ・ド・ピカルディ・ジュール・ヴェルヌ ナトリウムイオン電池用電極活物質
JP2015513592A (ja) 2012-03-01 2015-05-14 アルケマ フランス ポリフッ化ビニリデン組成物
US20160064711A1 (en) 2014-08-26 2016-03-03 Ningde Amperex Technology Limited Preparation method of porous composite separator
US20180114976A1 (en) 2016-10-24 2018-04-26 Samsung Electronics Co., Ltd. Positive electrode for metal secondary battery and metal secondary battery including the same

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040188880A1 (en) * 1997-03-27 2004-09-30 Stephan Bauer Production of molded articles for lithium ion batteries
JPH1173964A (ja) * 1997-08-29 1999-03-16 Ricoh Co Ltd 非水電解質二次電池
JP2005294140A (ja) 2004-04-02 2005-10-20 Matsushita Electric Ind Co Ltd 非水電解質二次電池およびその製造方法
JP5797206B2 (ja) 2010-12-28 2015-10-21 株式会社クレハ フッ化ビニリデン系共重合体、および該共重合体の用途
SG191868A1 (en) * 2011-01-12 2013-08-30 Plextronics Inc Additive for positive electrodes of lithium secondary batteries, and positive electrode for lithium secondary batteries
CN106410100A (zh) * 2016-11-16 2017-02-15 浙江长兴中俄新能源材料技术研究院有限公司 三维多孔聚合物锂离子电池用电极的制备及电池结构设计
JP6851398B2 (ja) * 2017-01-06 2021-03-31 三井化学株式会社 非水電解質二次電池及びそれに用いる材料
JP7554735B2 (ja) * 2019-03-22 2024-09-20 株式会社クレハ 電極合剤用組成物、電極合剤、電極、非水電解質二次電池、および電極の製造方法
JP6950975B2 (ja) 2019-07-11 2021-10-20 株式会社オリンピア 遊技機

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002529891A (ja) 1998-11-04 2002-09-10 ビーエーエスエフ アクチェンゲゼルシャフト 複合材料及び電気化学電池
JP2000256616A (ja) 1999-03-09 2000-09-19 Hitachi Ltd 非水溶媒系バインダ組成物、該組成物を形成した電極および非水溶媒系二次電池
JP2001015156A (ja) 1999-06-30 2001-01-19 Sony Corp 非水電解質電池
JP2002075337A (ja) 2000-09-04 2002-03-15 Matsushita Electric Ind Co Ltd 極板の製造方法
US20060064868A1 (en) 2004-09-24 2006-03-30 Yu-Ta Tu Method for producing a lithium polymeric battery cell
JP2011014457A (ja) 2009-07-03 2011-01-20 Nippon Shokubai Co Ltd 非水二次電池用正極組成物
JP2012048917A (ja) 2010-08-25 2012-03-08 Sony Corp 正極および非水電解質電池、並びに正極合剤および結着剤
JP2012238396A (ja) 2011-05-09 2012-12-06 Shin Etsu Chem Co Ltd 負極ペースト、負極電極及びその製造方法、並びに非水電解質二次電池
JP2014523084A (ja) 2011-07-04 2014-09-08 ユニベルシテ・ド・ピカルディ・ジュール・ヴェルヌ ナトリウムイオン電池用電極活物質
JP2013058376A (ja) 2011-09-08 2013-03-28 Toyota Motor Corp 固体電解質粒子、固体電解質膜、固体電解質粒子の製造方法
JP2015513592A (ja) 2012-03-01 2015-05-14 アルケマ フランス ポリフッ化ビニリデン組成物
US20160064711A1 (en) 2014-08-26 2016-03-03 Ningde Amperex Technology Limited Preparation method of porous composite separator
US20180114976A1 (en) 2016-10-24 2018-04-26 Samsung Electronics Co., Ltd. Positive electrode for metal secondary battery and metal secondary battery including the same

Also Published As

Publication number Publication date
CN116762193A (zh) 2023-09-15
EP4287324A4 (en) 2025-07-09
US20240322179A1 (en) 2024-09-26
WO2022163631A1 (ja) 2022-08-04
EP4287324A1 (en) 2023-12-06
KR20230125263A (ko) 2023-08-29
KR102924707B1 (ko) 2026-02-09
JPWO2022163631A1 (https=) 2022-08-04

Similar Documents

Publication Publication Date Title
CN107408668B (zh) 具有改善的传导性的Li离子电池的电极
US20130112928A1 (en) Aqueous electrode binder for secondary battery
KR102401458B1 (ko) 2차 전지 정극용 바인더 조성물, 2차 전지 정극용 슬러리 조성물, 2차 전지용 정극 및 2차 전지
US12506154B2 (en) Composition, binder, electrode mixture, electrode, and secondary battery
KR20230171954A (ko) 리튬 전지 전극용 조성물
US20230197967A1 (en) Binding agent for battery, electrode mixture, electrode, and secondary battery
US12603289B2 (en) Polyvinylidene fluoride, binder, electrode mixture, electrode, and secondary battery
JP7847545B2 (ja) 非水電解質二次電池用バインダー、電極合剤、電極、および非水電解質二次電池
JP2022143364A (ja) バインダー組成物、電極合剤、および非水電解質二次電池
TW202215689A (zh) 電極合劑、二次電池及組成物
WO2024231297A1 (en) Positive electrode binder for lithium ion batteries
JP2025512039A (ja) リチウムイオン電池のための正極バインダー
WO2026022129A1 (en) Lithium battery electrode binders
WO2025026907A1 (en) Lithium battery electrode binders
EP4693520A1 (en) Current collector, production method for same, electrode, and battery
CN119856302A (zh) 集电体及其制造方法、电极以及电池
WO2023127432A1 (ja) 非水電解質二次電池用バインダー、電極合剤、電極、および電池
WO2025003026A1 (en) (meth)acrylate polymers as additives in battery electrodes
WO2025262210A1 (en) Polymer composition as binder for electrodes in electrochemical devices
WO2025215959A1 (ja) 正極合剤、正極および二次電池
WO2025204572A1 (ja) フッ化ビニリデン共重合体、電極用バインダー、電極合剤、電極、および電池
WO2025182505A1 (ja) フッ化ビニリデン系重合体、バインダー、電極合剤、電極、および電池
KR20240155265A (ko) 바인더, 전극 합제, 전극 및 리튬 이온 이차전지

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20230626

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20230626

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20240903

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20241025

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20250128

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20250325

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20250701

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20250807

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20251104

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20251226

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: 20260331

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20260407

R150 Certificate of patent or registration of utility model

Ref document number: 7847545

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150