CN102216480B - 磁性不灵敏高硬度恒弹性合金及其制造方法、以及游丝、机械式驱动装置及钟表 - Google Patents

磁性不灵敏高硬度恒弹性合金及其制造方法、以及游丝、机械式驱动装置及钟表 Download PDF

Info

Publication number
CN102216480B
CN102216480B CN200980145779.3A CN200980145779A CN102216480B CN 102216480 B CN102216480 B CN 102216480B CN 200980145779 A CN200980145779 A CN 200980145779A CN 102216480 B CN102216480 B CN 102216480B
Authority
CN
China
Prior art keywords
alloy
modulus
temperature
hardness
magnetic
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
CN200980145779.3A
Other languages
English (en)
Chinese (zh)
Other versions
CN102216480A (zh
Inventor
村上雄悦
重城幸一郎
高桥修
恒吉润
菅原量
高野健志
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.)
Research Institute Of Electromagnetic Materials
Seiko Chronometer Co ltd
Original Assignee
Foundation Research Institute For Electric And Magnetic Materials
Seiko Instruments Inc
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 Foundation Research Institute For Electric And Magnetic Materials, Seiko Instruments Inc filed Critical Foundation Research Institute For Electric And Magnetic Materials
Publication of CN102216480A publication Critical patent/CN102216480A/zh
Application granted granted Critical
Publication of CN102216480B publication Critical patent/CN102216480B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/52Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D6/00Heat treatment of ferrous alloys
    • C21D6/004Heat treatment of ferrous alloys containing Cr and Ni
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D6/00Heat treatment of ferrous alloys
    • C21D6/007Heat treatment of ferrous alloys containing Co
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0236Cold rolling
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0242Flattening; Dressing; Flexing
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0273Final recrystallisation annealing
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/06Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/12Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0075Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rods of limited length
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/02Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for springs
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C19/00Alloys based on nickel or cobalt
    • C22C19/07Alloys based on nickel or cobalt based on cobalt
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C30/00Alloys containing less than 50% by weight of each constituent
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/02Ferrous alloys, e.g. steel alloys containing silicon
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/04Ferrous alloys, e.g. steel alloys containing manganese
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/06Ferrous alloys, e.g. steel alloys containing aluminium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/10Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
    • GPHYSICS
    • G04HOROLOGY
    • G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00Mechanisms for stabilising frequency
    • G04B17/04Oscillators acting by spring tension
    • G04B17/06Oscillators with hairsprings, e.g. balance
    • G04B17/066Manufacture of the spiral spring
    • GPHYSICS
    • G04HOROLOGY
    • G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B43/00Protecting clockworks by shields or other means against external influences, e.g. magnetic fields
    • G04B43/007Antimagnetic alloys

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
CN200980145779.3A 2008-11-17 2009-11-16 磁性不灵敏高硬度恒弹性合金及其制造方法、以及游丝、机械式驱动装置及钟表 Active CN102216480B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2008293713 2008-11-17
JP2008-293713 2008-11-17
PCT/JP2009/069458 WO2010055943A1 (ja) 2008-11-17 2009-11-16 磁性不感高硬度恒弾性合金及びその製造法、並びにひげぜんまい、機械式駆動装置及び時計

Publications (2)

Publication Number Publication Date
CN102216480A CN102216480A (zh) 2011-10-12
CN102216480B true CN102216480B (zh) 2014-08-20

Family

ID=42170072

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200980145779.3A Active CN102216480B (zh) 2008-11-17 2009-11-16 磁性不灵敏高硬度恒弹性合金及其制造方法、以及游丝、机械式驱动装置及钟表

Country Status (5)

Country Link
US (1) US8684594B2 (enExample)
EP (1) EP2351864B1 (enExample)
JP (1) JP5189580B2 (enExample)
CN (1) CN102216480B (enExample)
WO (1) WO2010055943A1 (enExample)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2447387B1 (fr) * 2010-10-28 2013-11-13 Générale Ressorts SA Ressort de barillet de pièce d'horlogerie
DE102011001783B4 (de) * 2011-04-04 2022-11-24 Vacuumschmelze Gmbh & Co. Kg Feder für ein mechanisches Uhrwerk, mechanisches Uhrwerk, Uhr mit einem mechanischen Uhrwerk und Verfahren zur Herstellung einer Feder
EP2570862B1 (fr) * 2011-09-15 2014-03-05 ETA SA Manufacture Horlogère Suisse Ensemble barillet d'horlogerie à diamètre de bonde réduit
US9395692B2 (en) 2012-08-31 2016-07-19 Citizen Holdings Co., Ltd. Hairspring material for mechanical timepiece and hairspring using the same
EP2757423B1 (fr) * 2013-01-17 2018-07-11 Omega SA Pièce pour mouvement d'horlogerie
CN104313395A (zh) * 2014-10-14 2015-01-28 杨雯雯 一种弹性合金
CA2996175C (en) 2015-09-08 2022-04-05 Scoperta, Inc. Non-magnetic, strong carbide forming alloys for powder manufacture
EP3208664B1 (de) * 2016-02-19 2023-08-16 Omega SA Uhrwerk oder uhr ohne magnetische signatur
EP3301520A1 (fr) * 2016-09-30 2018-04-04 Nivarox-FAR S.A. Composant horloger comportant un alliage haute entropie
JP6789140B2 (ja) * 2017-01-31 2020-11-25 セイコーインスツル株式会社 温度補償型てんぷ、ムーブメント及び時計
EP3422116B1 (fr) * 2017-06-26 2020-11-04 Nivarox-FAR S.A. Ressort spiral d'horlogerie
EP4151765A1 (en) * 2017-08-09 2023-03-22 Hitachi Metals, Ltd. Alloy member, process for producing said alloy member, and product including said alloy member
CN108193149B (zh) * 2018-01-05 2020-11-03 广东电科院能源技术有限责任公司 一种碳纤维增强合金复合材料及其制备方法
US20210164081A1 (en) 2018-03-29 2021-06-03 Oerlikon Metco (Us) Inc. Reduced carbides ferrous alloys
CN113195759B (zh) 2018-10-26 2023-09-19 欧瑞康美科(美国)公司 耐腐蚀和耐磨镍基合金
WO2020198302A1 (en) 2019-03-28 2020-10-01 Oerlikon Metco (Us) Inc. Thermal spray iron-based alloys for coating engine cylinder bores
AU2020269275B2 (en) 2019-05-03 2025-05-22 Oerlikon Metco (Us) Inc. Powder feedstock for wear resistant bulk welding configured to optimize manufacturability
CN110923539B (zh) * 2019-12-17 2021-10-08 南方科技大学 一种高熵合金及其制备方法和压缩性能测试方法
CN111455199A (zh) * 2020-04-16 2020-07-28 江苏星火特钢有限公司 一种高温合金真空感应炉冶炼工艺
CN112301255B (zh) * 2020-10-27 2021-07-30 上海交通大学 一种模具用高导热高强Co-Fe-Ni合金及其增材制造方法
CN119040771B (zh) * 2024-09-05 2025-06-06 重庆材料研究院有限公司 一种高机械品质因数马氏体弹性合金

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85100773A (zh) * 1985-04-01 1986-08-20 首都钢铁公司特殊钢公司冶金研究所 高性能正频率温度系数恒弹性合金
JP2004308827A (ja) * 2003-04-09 2004-11-04 Sii Micro Parts Ltd ぜんまいの製造方法

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2859149A (en) 1952-01-14 1958-11-04 Straumann Reinhard Manufacture of watch springs utilizing wire converted into strip
GB918620A (en) 1959-09-25 1963-02-13 Straumann Inst Ag Improvements in clockwork and like mechanisms
US3148092A (en) * 1960-11-17 1964-09-08 Westinghouse Electric Corp Process for producing sheets of magnetic materials
JPS5019511B1 (enExample) 1970-03-18 1975-07-08
US3673010A (en) 1970-05-19 1972-06-27 Tohoku Special Steel Works Ltd Cold-workable permanent magnet alloy
JPS63195249A (ja) 1987-02-10 1988-08-12 Res Inst Electric Magnetic Alloys 高温恒弾性合金
JP3110507B2 (ja) 1991-09-19 2000-11-20 ウエスト電気株式会社 フィルム電動巻上げ装置
US6863435B2 (en) * 1997-08-11 2005-03-08 Seiko Epson Corporation Spring, mainspring, hairspring, and driving mechanism and timepiece based thereon
JP3982290B2 (ja) * 1997-08-28 2007-09-26 セイコーエプソン株式会社 バネ、ヒゲゼンマイ、および時計
KR100244232B1 (en) * 1997-12-03 2000-02-01 Lg Electronics Inc Shadow mask for cathode ray tube and method of manufacturing thereof
CN1344386A (zh) 2000-01-21 2002-04-10 精工电子有限公司 机械表制造方法
CA2422753C (en) * 2000-09-21 2007-11-27 Nippon Steel Corporation Steel plate excellent in shape freezing property and method for production thereof
JP4421877B2 (ja) * 2003-03-26 2010-02-24 セイコーインスツル株式会社 Co−Ni基高弾性合金及びCo−Ni基高弾性合金を用いた動力ぜんまいとその製造方法
JP4357977B2 (ja) * 2004-02-04 2009-11-04 住友電工スチールワイヤー株式会社 ばね用鋼線
US8591669B2 (en) * 2004-11-23 2013-11-26 University Of Maryland Method of texturing polycrystalline iron/gallium alloys and compositions thereof
JP2006214822A (ja) 2005-02-02 2006-08-17 Seiko Instruments Inc 緩急可能なひげぜんまいを含む機械式時計
JP2007327084A (ja) * 2006-06-06 2007-12-20 Kobe Steel Ltd 伸線加工性に優れた線材およびその製造方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85100773A (zh) * 1985-04-01 1986-08-20 首都钢铁公司特殊钢公司冶金研究所 高性能正频率温度系数恒弹性合金
JP2004308827A (ja) * 2003-04-09 2004-11-04 Sii Micro Parts Ltd ぜんまいの製造方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
FeNiCo高温恒弹性合金特性研究;郭为民等;《功能材料》;20051231;第36卷(第8期);第1210-1212页 *

Also Published As

Publication number Publication date
WO2010055943A9 (ja) 2010-09-23
EP2351864B1 (en) 2016-08-10
CN102216480A (zh) 2011-10-12
US20110286312A1 (en) 2011-11-24
US8684594B2 (en) 2014-04-01
JP5189580B2 (ja) 2013-04-24
JP2010138491A (ja) 2010-06-24
WO2010055943A1 (ja) 2010-05-20
EP2351864A1 (en) 2011-08-03
EP2351864A4 (en) 2013-02-27

Similar Documents

Publication Publication Date Title
CN102216480B (zh) 磁性不灵敏高硬度恒弹性合金及其制造方法、以及游丝、机械式驱动装置及钟表
JP2010138491A5 (enExample)
JP5065904B2 (ja) 形状記憶性及び超弾性を有する鉄系合金及びその製造方法
JP5215855B2 (ja) Fe基合金及びその製造方法
JP6346441B2 (ja) アモルファス金属合金を含む時計部品
US20110056589A1 (en) Iron-nickle alloy
JPH06511287A (ja) 析出硬化型マルテンサイト系ステンレス鋼
JP5155346B2 (ja) 高強度低熱膨張合金及びその製造法並びに精密機器
JP5059035B2 (ja) 高弾性・恒弾性合金及びその製造法並びに精密機器
CN109477175A (zh) Fe基形状记忆合金材料及其制造方法
CN101115850B (zh) 新的Fe-Al合金以及其制造方法
JP5486050B2 (ja) 高弾性・恒弾性合金及びその製造法並びに精密機器
JP3907177B2 (ja) Fe基形状記憶合金及びその製造方法
JP6308424B2 (ja) Fe基制振合金およびその製造方法ならびにFe基制振合金材
JPWO2014157146A1 (ja) オーステナイト系ステンレス鋼板およびそれを用いた高強度鋼材の製造方法
JP2000017395A (ja) Fe系形状記憶合金及びその製造方法
JPH06184700A (ja) 高強度非磁性低熱膨張合金
JP7246684B2 (ja) 低熱膨張合金
JP2002105561A (ja) 低熱膨張合金
JP2628806B2 (ja) 高強度非磁性低熱膨張合金およびその製造方法
WO2025225580A1 (ja) Fe―Mn合金及びFe―Mn合金からなる時計用ひげぜんまい
JPWO2016052554A1 (ja) Fe−Mn系恒弾性・不感磁性合金及びその製造方法
JPS6115914A (ja) ストレインゲ−ジ用合金およびストレインゲ−ジの製造法
JP2006089803A (ja) 超弾性チタン合金及びその製造方法
JPH04131358A (ja) 高強度非強磁性低熱膨張合金およびその製造方法

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee
CP01 Change in the name or title of a patent holder

Address after: Sendai City, Miyagi Prefecture, Japan

Patentee after: Research Institute of electromagnetic materials

Patentee after: Seiko Instruments Inc.

Address before: Sendai City, Miyagi Prefecture, Japan

Patentee before: THE FOUNDATION THE Research Institute FOR ELECTRIC AND MAGNETIC MATERIALS

Patentee before: Seiko Instruments Inc.

TR01 Transfer of patent right

Effective date of registration: 20241105

Address after: Sendai City, Miyagi Prefecture, Japan

Patentee after: Research Institute of electromagnetic materials

Country or region after: Japan

Patentee after: SEIKO CHRONOMETER Co.,Ltd.

Address before: Sendai City, Miyagi Prefecture, Japan

Patentee before: Research Institute of electromagnetic materials

Country or region before: Japan

Patentee before: Seiko Instruments Inc.

TR01 Transfer of patent right