JP7708295B2 - 合金造形体、製造物及び合金造形体の製造方法 - Google Patents

合金造形体、製造物及び合金造形体の製造方法

Info

Publication number
JP7708295B2
JP7708295B2 JP2024501463A JP2024501463A JP7708295B2 JP 7708295 B2 JP7708295 B2 JP 7708295B2 JP 2024501463 A JP2024501463 A JP 2024501463A JP 2024501463 A JP2024501463 A JP 2024501463A JP 7708295 B2 JP7708295 B2 JP 7708295B2
Authority
JP
Japan
Prior art keywords
less
phase
alloy
shaped body
bcc
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
JP2024501463A
Other languages
English (en)
Japanese (ja)
Other versions
JPWO2023157965A1 (https=
Inventor
晋哉 岡本
秀峰 小関
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.)
Proterial Ltd
Original Assignee
Proterial Ltd
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 Proterial Ltd filed Critical Proterial Ltd
Publication of JPWO2023157965A1 publication Critical patent/JPWO2023157965A1/ja
Priority to JP2025004986A priority Critical patent/JP2025066751A/ja
Application granted granted Critical
Publication of JP7708295B2 publication Critical patent/JP7708295B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/20—Direct sintering or melting
    • B22F10/25—Direct deposition of metal particles, e.g. direct metal deposition [DMD] or laser engineered net shaping [LENS]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/20—Direct sintering or melting
    • B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/60—Treatment of workpieces or articles after build-up
    • B22F10/62—Treatment of workpieces or articles after build-up by chemical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/60—Treatment of workpieces or articles after build-up
    • B22F10/64—Treatment of workpieces or articles after build-up by thermal means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y10/00—Processes of additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
    • B33Y40/20—Post-treatment, e.g. curing, coating or polishing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y70/00—Materials specially adapted for additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y80/00—Products made by additive manufacturing
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
    • C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
    • C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
    • C22C33/0285—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5% with Cr, Co, or Ni having a minimum content higher than 5%
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/30—Ferrous alloys, e.g. steel alloys containing chromium with cobalt
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/36—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.7% by weight of carbon
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/04—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings of inorganic non-metallic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2301/00—Metallic composition of the powder or its coating
    • B22F2301/35—Iron
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2304/00—Physical aspects of the powder
    • B22F2304/10—Micron size particles, i.e. above 1 micrometer up to 500 micrometer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10—Processes characterised by the sequence of their steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Plasma & Fusion (AREA)
  • Inorganic Chemistry (AREA)
  • Powder Metallurgy (AREA)
JP2024501463A 2022-02-18 2023-02-20 合金造形体、製造物及び合金造形体の製造方法 Active JP7708295B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2025004986A JP2025066751A (ja) 2022-02-18 2025-01-14 Ｆｅ基合金、合金部材、製造物及び合金部材の製造方法

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2022023967 2022-02-18
JP2022023967 2022-02-18
PCT/JP2023/005937 WO2023157965A1 (ja) 2022-02-18 2023-02-20 Ｆｅ基合金、合金部材、製造物及び合金部材の製造方法

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2025004986A Division JP2025066751A (ja) 2022-02-18 2025-01-14 Ｆｅ基合金、合金部材、製造物及び合金部材の製造方法

Publications (2)

Publication Number Publication Date
JPWO2023157965A1 JPWO2023157965A1 (https=) 2023-08-24
JP7708295B2 true JP7708295B2 (ja) 2025-07-15

Family

ID=87578435

Family Applications (2)

Application Number Title Priority Date Filing Date
JP2024501463A Active JP7708295B2 (ja) 2022-02-18 2023-02-20 合金造形体、製造物及び合金造形体の製造方法
JP2025004986A Pending JP2025066751A (ja) 2022-02-18 2025-01-14 Ｆｅ基合金、合金部材、製造物及び合金部材の製造方法

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP2025004986A Pending JP2025066751A (ja) 2022-02-18 2025-01-14 Ｆｅ基合金、合金部材、製造物及び合金部材の製造方法

Country Status (4)

Country Link
US (1) US20240392420A1 (https=)
EP (1) EP4382629A4 (https=)
JP (2) JP7708295B2 (https=)
WO (1) WO2023157965A1 (https=)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7775993B2 (ja) * 2022-09-26 2025-11-26 株式会社プロテリアル Ｆｅ基合金、合金部材、製造物及び合金部材の製造方法
JP7798238B2 (ja) * 2023-09-22 2026-01-14 株式会社プロテリアル Ｆｅ基合金、合金部材及び合金部材の製造方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018230421A1 (ja) 2017-06-15 2018-12-20 住友電工焼結合金株式会社 造形物の製造方法、及び造形物
CN110102768A (zh) 2019-06-14 2019-08-09 中南大学 一种增减材制造雕刻刀模的方法及其系列3d打印金属粉
WO2020110891A1 (ja) 2018-11-27 2020-06-04 日立金属株式会社 造形用粉末
WO2020149787A1 (en) 2019-01-18 2020-07-23 Vbn Components Ab 3d printed high carbon content steel and method of preparing the same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5172906A (en) 1974-12-23 1976-06-24 Hitachi Metals Ltd Tankabutsuo fukashitakosokudokoguko
JP3616204B2 (ja) * 1996-03-28 2005-02-02 山陽特殊製鋼株式会社 表面処理に適した冷間工具鋼及びその金型並びに工具
CA2937998A1 (en) * 2014-01-27 2015-07-30 Rovalma, S.A. Centrifugal atomization of iron-based alloys
US10889872B2 (en) * 2017-08-02 2021-01-12 Kennametal Inc. Tool steel articles from additive manufacturing

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018230421A1 (ja) 2017-06-15 2018-12-20 住友電工焼結合金株式会社 造形物の製造方法、及び造形物
WO2020110891A1 (ja) 2018-11-27 2020-06-04 日立金属株式会社 造形用粉末
WO2020149787A1 (en) 2019-01-18 2020-07-23 Vbn Components Ab 3d printed high carbon content steel and method of preparing the same
CN110102768A (zh) 2019-06-14 2019-08-09 中南大学 一种增减材制造雕刻刀模的方法及其系列3d打印金属粉

Also Published As

Publication number Publication date
WO2023157965A1 (ja) 2023-08-24
EP4382629A1 (en) 2024-06-12
EP4382629A4 (en) 2025-03-05
US20240392420A1 (en) 2024-11-28
JPWO2023157965A1 (https=) 2023-08-24
JP2025066751A (ja) 2025-04-23

Similar Documents

Publication Publication Date Title
JP6974607B2 (ja) 積層造形熱間工具およびその製造方法、ならびに、積層造形熱間工具用金属粉末
JP2025066751A (ja) Ｆｅ基合金、合金部材、製造物及び合金部材の製造方法
CA2992092C (en) Mixed powder for powder metallurgy, sintered body, and method of manufacturing sintered body
JP5110398B2 (ja) 鉄基焼結合金、鉄基焼結合金の製造方法およびコンロッド
JP7849860B2 (ja) ３ｄ印刷高炭素含有鋼およびそれを作製する方法
JPWO2020110891A1 (ja) 造形用粉末
Coffy Microstructure and chemistry evaluation of direct metal laser sintered 15-5 PH stainless steel
US20240043974A1 (en) Shaped Article Produced From Powder
JP2022144437A (ja) Ｆｅ基合金及び金属粉末
KR102797374B1 (ko) 용융 응고 성형용 Fe기 합금 및 금속 분말
JP7775993B2 (ja) Ｆｅ基合金、合金部材、製造物及び合金部材の製造方法
KR102562199B1 (ko) 금속적층가공용 기능성 철 합금소재 및 이를 이용한 금형 제조 기술
JP7798238B2 (ja) Ｆｅ基合金、合金部材及び合金部材の製造方法
JP7036216B2 (ja) 鉄基合金焼結体及び粉末冶金用鉄基混合粉
JP5088532B2 (ja) 軟化特性および表面仕上げ特性に優れた高強度工具ならびに、その製造方法
Liljestrand Porosity closure during hot isostatic pressing of additively manufactured Ni-based superalloy IN718 produced by LPBF and EBM
JP7677529B2 (ja) 積層造形体からなるＮｉ－Ｃｒ合金部材、Ｎｉ－Ｃｒ合金部材の製造方法、およびＮｉ－Ｃｒ合金部材を用いた製造物
KR102562188B1 (ko) 금속적층가공용 합금소재 및 이를 이용하여 제조된 금형 또는 금속 부품 제조와 보수 방법
JP7571965B2 (ja) 機械部品
JP2025086899A (ja) 合金部材及び合金部材の製造方法
JP2022148199A (ja) Ｆｅ基合金及び金属粉末
Shakunt et al. Powder bed fusion processing and tribological evaluation of Stellite 6 reinforced tungsten heavy alloys
JP2015190004A (ja) 機械部品
AU2024267169A1 (en) Steel powder for use in additive manufacturing processes
JP2022053869A (ja) 合金組成物および合金組成物の製造方法、並びに金型

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20240123

A871 Explanation of circumstances concerning accelerated examination

Free format text: JAPANESE INTERMEDIATE CODE: A871

Effective date: 20240123

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20240319

A601 Written request for extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A601

Effective date: 20240516

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20240718

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20241015

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20250114

RD13 Notification of appointment of power of sub attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7433

Effective date: 20250128

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A821

Effective date: 20250128

RD13 Notification of appointment of power of sub attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7433

Effective date: 20250306

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A821

Effective date: 20250306

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20250401

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20250521

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: 20250603

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20250616

R150 Certificate of patent or registration of utility model

Ref document number: 7708295

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150