JP7328606B2 - 冷間圧延用鍛鋼ロール - Google Patents

冷間圧延用鍛鋼ロール Download PDF

Info

Publication number
JP7328606B2
JP7328606B2 JP2023516613A JP2023516613A JP7328606B2 JP 7328606 B2 JP7328606 B2 JP 7328606B2 JP 2023516613 A JP2023516613 A JP 2023516613A JP 2023516613 A JP2023516613 A JP 2023516613A JP 7328606 B2 JP7328606 B2 JP 7328606B2
Authority
JP
Japan
Prior art keywords
roll
less
temperature
content
cold rolling
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
JP2023516613A
Other languages
English (en)
Japanese (ja)
Other versions
JPWO2023012906A5 (https=
JPWO2023012906A1 (https=
Inventor
誠司 伊東
義久 ▲高▼▲濱▼
佳歩 平山
博英 廣川
和也 花折
知暁 瀬羅
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.)
Nippon Steel Corp
Original Assignee
Nippon Steel 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Publication of JPWO2023012906A1 publication Critical patent/JPWO2023012906A1/ja
Publication of JPWO2023012906A5 publication Critical patent/JPWO2023012906A5/ja
Application granted granted Critical
Publication of JP7328606B2 publication Critical patent/JP7328606B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/02—Shape or construction of rolls
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/002—Heat treatment of ferrous alloys containing Cr
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/005—Heat treatment of ferrous alloys containing Mn
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/008—Heat treatment of ferrous alloys containing Si
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/36—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for balls; for rollers
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/38—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for roll bodies
    • 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
    • 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
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • 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
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • 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
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • 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
    • C22C38/20—Ferrous alloys, e.g. steel alloys containing chromium with 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
    • C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
    • 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
    • C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/002—Bainite

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Geometry (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Heat Treatment Of Articles (AREA)
JP2023516613A 2021-08-03 2021-08-03 冷間圧延用鍛鋼ロール Active JP7328606B2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2021/028833 WO2023012906A1 (ja) 2021-08-03 2021-08-03 冷間圧延用鍛鋼ロール

Publications (3)

Publication Number Publication Date
JPWO2023012906A1 JPWO2023012906A1 (https=) 2023-02-09
JPWO2023012906A5 JPWO2023012906A5 (https=) 2023-07-12
JP7328606B2 true JP7328606B2 (ja) 2023-08-17

Family

ID=85154367

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2023516613A Active JP7328606B2 (ja) 2021-08-03 2021-08-03 冷間圧延用鍛鋼ロール

Country Status (5)

Country Link
US (1) US20240383025A1 (https=)
JP (1) JP7328606B2 (https=)
KR (1) KR20240027054A (https=)
CN (1) CN117794656A (https=)
WO (1) WO2023012906A1 (https=)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7769215B2 (ja) * 2022-03-07 2025-11-13 日本製鉄株式会社 冷間圧延用ロール
WO2024161556A1 (ja) * 2023-02-01 2024-08-08 日本製鉄株式会社 鍛鋼ロール
CN116987965A (zh) * 2023-07-18 2023-11-03 中钢集团邢台机械轧辊有限公司 一种高合金锻钢热轧r1工作辊及其制备方法
WO2025204621A1 (ja) * 2024-03-28 2025-10-02 日本製鉄株式会社 鍛鋼ロール
WO2025204630A1 (ja) * 2024-03-28 2025-10-02 日本製鉄株式会社 鍛鋼ロール

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012184471A (ja) 2011-03-04 2012-09-27 Akers Ab 冷間圧延工業の要件を満たす鍛造ロールおよび該ロールの製造方法
WO2017154658A1 (ja) 2016-03-11 2017-09-14 国立大学法人大阪大学 金属材の低温接合方法及び接合構造物
JP2019055419A (ja) 2017-09-22 2019-04-11 新日鐵住金株式会社 冷間圧延用ロール

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4638896B1 (https=) * 1967-03-31 1971-11-16
JPS5212612A (en) * 1975-07-21 1977-01-31 Nippon Steel Corp Wear resistant tool steel
JPS608298B2 (ja) * 1979-07-02 1985-03-01 株式会社日立製作所 冷間圧延用鍛鋼焼入れロ−ル
JPS5923846A (ja) * 1982-07-31 1984-02-07 Kubota Ltd 耐クラツク性、耐摩耗性に優れる合金チルドロ−ル材
JPS61213349A (ja) * 1985-03-16 1986-09-22 Daido Steel Co Ltd 合金工具鋼
JPH0653891B2 (ja) * 1985-11-08 1994-07-20 川崎製鉄株式会社 高耐摩耗性圧延ロ−ルの製造方法
JPH01234548A (ja) 1988-03-15 1989-09-19 Japan Steel Works Ltd:The 高靭性圧延用ロール
JPH02185928A (ja) 1989-01-11 1990-07-20 Hitachi Ltd 金属圧延機用作業ロールの製造法
JPH0586439A (ja) 1991-08-15 1993-04-06 Kawasaki Steel Corp 鍛鋼製冷間圧延用ワークロール材
JP2688629B2 (ja) 1991-11-13 1997-12-10 株式会社日立製作所 圧延用焼入れロールの製造方法
JPH06210326A (ja) * 1993-01-18 1994-08-02 Nippon Steel Corp 冷間圧延ロールおよび冷間圧延方法
JPH11314105A (ja) * 1998-04-28 1999-11-16 Nippon Steel Corp 冷間圧延用ワークロールの製造方法
JP5308217B2 (ja) 2009-04-06 2013-10-09 株式会社神戸製鋼所 靭性に優れた鍛鋼製冷間圧延ロール
CN102400048B (zh) * 2010-09-15 2013-09-04 宝山钢铁股份有限公司 一种用于高强钢轧制的冷轧工作辊用钢,冷轧工作辊及其制造方法
KR101305410B1 (ko) * 2011-03-04 2013-09-06 에이커스 에이비 냉간 압연 분야의 필요조건을 충족하는 단조 롤과 그 제조 방법
US8920296B2 (en) * 2011-03-04 2014-12-30 Åkers AB Forged roll meeting the requirements of the cold rolling industry and a method for production of such a roll
CN104611523A (zh) * 2013-11-04 2015-05-13 青岛齐力铸钢有限公司 Cr8型冷轧辊用钢淬火回火工艺
CN106086702A (zh) * 2016-07-21 2016-11-09 合肥东方节能科技股份有限公司 一种轧机导辊用高碳马氏体不锈钢及轧机导辊热处理方法
CN110904302B (zh) * 2018-09-17 2021-12-14 营口市特殊钢锻造有限责任公司 一种新型ym8系列冷轧辊钢及其制备方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012184471A (ja) 2011-03-04 2012-09-27 Akers Ab 冷間圧延工業の要件を満たす鍛造ロールおよび該ロールの製造方法
WO2017154658A1 (ja) 2016-03-11 2017-09-14 国立大学法人大阪大学 金属材の低温接合方法及び接合構造物
JP2019055419A (ja) 2017-09-22 2019-04-11 新日鐵住金株式会社 冷間圧延用ロール

Also Published As

Publication number Publication date
KR20240027054A (ko) 2024-02-29
CN117794656A (zh) 2024-03-29
US20240383025A1 (en) 2024-11-21
WO2023012906A1 (ja) 2023-02-09
JPWO2023012906A1 (https=) 2023-02-09

Similar Documents

Publication Publication Date Title
JP7328606B2 (ja) 冷間圧延用鍛鋼ロール
CN110366603B (zh) 耐磨损钢板和耐磨损钢板的制造方法
CN107208212B (zh) 厚壁高韧性高强度钢板及其制造方法
JP6226086B2 (ja) 冷間鍛造部品用圧延棒鋼または圧延線材
CN109563578B (zh) 高频淬火用钢
CN109477179B (zh) 高频淬火用钢
CN108315637B (zh) 高碳热轧钢板及其制造方法
JP7769215B2 (ja) 冷間圧延用ロール
WO2007123164A1 (ja) 内燃機関用ピストンリング材
KR20190028757A (ko) 고주파 담금질용 강
CN108291285A (zh) 钢、渗碳钢部件及渗碳钢部件的制造方法
JPH11310825A (ja) 冷間圧延用ワークロールの製造方法
JP5675139B2 (ja) 耐食性に優れた二相ステンレス鋼材の製造方法
WO2017069064A1 (ja) 機械構造用鋼及び高周波焼入鋼部品
JP4186340B2 (ja) 耐摩耗性に優れた熱間工具鋼
WO2023218786A1 (ja) 連続鋳造スラブおよびその製造方法
JP4922971B2 (ja) 熱間圧延用複合ロール及びその製造方法
JP3292122B2 (ja) 継目無鋼管製造用工具
JPH03254342A (ja) 転動疲労寿命に優れた軸受用素材の製造方法
JP4196501B2 (ja) 高強度で靱性に優れたシームレス鋼管用鋼
JP6465206B2 (ja) 熱間圧延棒線材、部品および熱間圧延棒線材の製造方法
JP2001123247A (ja) 被削性に優れた冷間工具鋼
JP4239300B2 (ja) 冷間金型用鋼
JP7229827B2 (ja) 高炭素鋼板の製造方法
JP3579558B2 (ja) 耐焼割れ性に優れた軸受鋼

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20230313

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20230313

A871 Explanation of circumstances concerning accelerated examination

Free format text: JAPANESE INTERMEDIATE CODE: A871

Effective date: 20230313

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20230516

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20230614

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: 20230704

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20230717

R151 Written notification of patent or utility model registration

Ref document number: 7328606

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R151