JPWO2021015141A1 - - Google Patents

Info

Publication number
JPWO2021015141A1
JPWO2021015141A1 JP2021534009A JP2021534009A JPWO2021015141A1 JP WO2021015141 A1 JPWO2021015141 A1 JP WO2021015141A1 JP 2021534009 A JP2021534009 A JP 2021534009A JP 2021534009 A JP2021534009 A JP 2021534009A JP WO2021015141 A1 JPWO2021015141 A1 JP WO2021015141A1
Authority
JP
Japan
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.)
Granted
Application number
JP2021534009A
Other versions
JP7176637B2 (ja
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 filed Critical
Publication of JPWO2021015141A1 publication Critical patent/JPWO2021015141A1/ja
Application granted granted Critical
Publication of JP7176637B2 publication Critical patent/JP7176637B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • 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 by deformation combined with, or followed by, heat treatment
    • C21D8/10—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B23/00—Tube-rolling not restricted to methods provided for in only one of groups B21B17/00, B21B19/00, B21B21/00, e.g. combined processes planetary tube rolling, auxiliary arrangements, e.g. lubricating, special tube blanks, continuous casting combined with tube rolling
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/068—Decarburising
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/10—Handling in a vacuum
    • 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/10—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
    • C21D8/105—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies of ferrous alloys
    • 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
    • C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/04—Making ferrous alloys by melting
    • 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
    • C22C38/04—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
    • C22C38/18—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
    • 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
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/52—Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt
    • 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
    • C21D2211/001—Austenite
    • 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
    • C21D2211/008—Martensite
    • 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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/02—Rigid pipes of metal

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Heat Treatment Of Articles (AREA)
  • Heat Treatment Of Steel (AREA)
JP2021534009A 2019-07-24 2020-07-17 マルテンサイト系ステンレス鋼管及びマルテンサイト系ステンレス鋼管の製造方法 Active JP7176637B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2019136192 2019-07-24
JP2019136192 2019-07-24
PCT/JP2020/027941 WO2021015141A1 (ja) 2019-07-24 2020-07-17 マルテンサイト系ステンレス鋼管及びマルテンサイト系ステンレス鋼管の製造方法

Publications (2)

Publication Number Publication Date
JPWO2021015141A1 true JPWO2021015141A1 (ja) 2021-01-28
JP7176637B2 JP7176637B2 (ja) 2022-11-22

Family

ID=74193646

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2021534009A Active JP7176637B2 (ja) 2019-07-24 2020-07-17 マルテンサイト系ステンレス鋼管及びマルテンサイト系ステンレス鋼管の製造方法

Country Status (4)

Country Link
EP (1) EP4006177B1 (ja)
JP (1) JP7176637B2 (ja)
CN (1) CN113939607B (ja)
WO (1) WO2021015141A1 (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116724137A (zh) * 2021-02-26 2023-09-08 杰富意钢铁株式会社 油井用高强度不锈钢无缝钢管及其制造方法
JP7488503B1 (ja) 2022-09-21 2024-05-22 日本製鉄株式会社 マルテンサイト系ステンレス鋼材

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002220639A (ja) * 2001-01-30 2002-08-09 Sumitomo Metal Ind Ltd 延性に優れたマルテンサイト系ステンレス鋼および油井用ステンレス鋼管
JP2002226947A (ja) * 2001-01-31 2002-08-14 Sumitomo Metal Ind Ltd 耐歪み時効性に優れたマルテンサイト系ステンレス鋼溶接継手
JP2016164288A (ja) * 2015-03-06 2016-09-08 Ｊｆｅスチール株式会社 油井用高強度ステンレス継目無鋼管の製造方法
WO2018181404A1 (ja) * 2017-03-28 2018-10-04 新日鐵住金株式会社 マルテンサイトステンレス鋼材
WO2019065116A1 (ja) * 2017-09-29 2019-04-04 Ｊｆｅスチール株式会社 油井管用マルテンサイト系ステンレス継目無鋼管およびその製造方法

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09256115A (ja) * 1996-03-18 1997-09-30 Nippon Steel Corp 耐サワー特性に優れた良溶接性マルテンサイト系ステンレス鋼およびその製造方法
JP3428628B2 (ja) * 1998-11-25 2003-07-22 住友金属工業株式会社 ステンレス鋼の脱硫精錬方法
KR100765661B1 (ko) * 2000-08-31 2007-10-10 제이에프이 스틸 가부시키가이샤 저탄소 마르텐사이트계 스테인레스 강판 및 이의 제조방법
EP2258507B1 (en) 2003-09-05 2013-12-18 Nippon Steel & Sumitomo Metal Corporation Welded structure having improved resistance to stress corrosion cracking
JP4529640B2 (ja) 2004-10-28 2010-08-25 住友金属工業株式会社 ステンレス鋼管の製造方法
JP4337712B2 (ja) 2004-11-19 2009-09-30 住友金属工業株式会社 マルテンサイト系ステンレス鋼
JP5023477B2 (ja) 2005-03-22 2012-09-12 Ｊｆｅスチール株式会社 ステンレス熱延鋼帯の酸洗方法及びステンレス熱延鋼帯
JP2010242162A (ja) 2009-04-06 2010-10-28 Jfe Steel Corp 超臨界圧炭酸ガスインジェクション用Ｃｒ含有鋼管
AR076669A1 (es) * 2009-05-18 2011-06-29 Sumitomo Metal Ind Acero inoxidable para pozos de petroleo, tubo de acero inoxidable para pozos de petroleo, y metodo de fabricacion de acero inoxidable para pozos de petroleo
JP6240423B2 (ja) 2012-12-26 2017-11-29 新日鐵住金ステンレス株式会社 抗菌性に優れたフェライト系ステンレス鋼板及びその製造方法
BR102014005015A8 (pt) * 2014-02-28 2017-12-26 Villares Metals S/A aço inoxidável martensítico-ferrítico, produto manufaturado, processo para a produção de peças ou barras forjadas ou laminadas de aço inoxidável martensítico-ferrítico e processo para a produção de tudo sem costura de aço inoxidável martensítico-ferrítico
JP6102798B2 (ja) 2014-02-28 2017-03-29 Ｊｆｅスチール株式会社 リールバージ敷設に優れるラインパイプ用マルテンサイト系ステンレス鋼管の製造方法
EP3342894A4 (en) * 2015-08-28 2019-03-06 Nippon Steel & Sumitomo Metal Corporation STAINLESS STEEL PIPE AND PRODUCTION METHOD THEREOF
JP6572802B2 (ja) * 2016-03-04 2019-09-11 日鉄ステンレス株式会社 スチールベルト用析出硬化型マルテンサイト系ステンレス鋼板および製造方法
EP3508603A4 (en) * 2016-09-01 2020-06-03 Nippon Steel Corporation STEEL AND OIL HOLE PIPE
US11008636B2 (en) * 2016-10-17 2021-05-18 Jfe Steel Corporation Stainless steel sheet and stainless steel foil
WO2018147149A1 (ja) * 2017-02-08 2018-08-16 Ｊｆｅスチール株式会社 フェライト系ステンレス鋼板

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002220639A (ja) * 2001-01-30 2002-08-09 Sumitomo Metal Ind Ltd 延性に優れたマルテンサイト系ステンレス鋼および油井用ステンレス鋼管
JP2002226947A (ja) * 2001-01-31 2002-08-14 Sumitomo Metal Ind Ltd 耐歪み時効性に優れたマルテンサイト系ステンレス鋼溶接継手
JP2016164288A (ja) * 2015-03-06 2016-09-08 Ｊｆｅスチール株式会社 油井用高強度ステンレス継目無鋼管の製造方法
WO2018181404A1 (ja) * 2017-03-28 2018-10-04 新日鐵住金株式会社 マルテンサイトステンレス鋼材
WO2019065116A1 (ja) * 2017-09-29 2019-04-04 Ｊｆｅスチール株式会社 油井管用マルテンサイト系ステンレス継目無鋼管およびその製造方法

Also Published As

Publication number Publication date
EP4006177A4 (en) 2022-06-08
JP7176637B2 (ja) 2022-11-22
CN113939607A (zh) 2022-01-14
CN113939607B (zh) 2022-06-28
EP4006177A1 (en) 2022-06-01
WO2021015141A1 (ja) 2021-01-28
EP4006177B1 (en) 2024-02-28

Similar Documents

Publication Publication Date Title
BR112019017762A2 (ja)
BR112021013854A2 (ja)
BR112021018450A2 (ja)
BR112021017939A2 (ja)
BR112019016141A2 (ja)
AU2020104490A4 (ja)
BR112019016142A2 (ja)
BR112019016138A2 (ja)
BR112021018168A2 (ja)
BR112021008711A2 (ja)
BR112021018452A2 (ja)
BR112021018102A2 (ja)
JPWO2021015141A1 (ja)
BR112021012348A2 (ja)
BR112021018250A2 (ja)
BR112021018093A2 (ja)
BR112021018084A2 (ja)
BR112021013944A2 (ja)
BR112021013128A2 (ja)
BR112021018484A2 (ja)
BR112021017732A2 (ja)
BR112021015080A2 (ja)
BR112021017949A2 (ja)
BR112021017983A2 (ja)
BR112021016205A2 (ja)

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20210916

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20210916

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: 20221011

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20221024

R151 Written notification of patent or utility model registration

Ref document number: 7176637

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R151