BR112012020741A2 - "método de produção de chapa de aço elétrico com grão orientado" - Google Patents
"método de produção de chapa de aço elétrico com grão orientado"Info
- Publication number
- BR112012020741A2 BR112012020741A2 BR112012020741A BR112012020741A BR112012020741A2 BR 112012020741 A2 BR112012020741 A2 BR 112012020741A2 BR 112012020741 A BR112012020741 A BR 112012020741A BR 112012020741 A BR112012020741 A BR 112012020741A BR 112012020741 A2 BR112012020741 A2 BR 112012020741A2
- Authority
- BR
- Brazil
- Prior art keywords
- steel sheet
- annealing
- mass
- production method
- grain oriented
- Prior art date
Links
Classifications
-
- 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
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
-
- 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
- C21D3/00—Diffusion processes for extraction of non-metals; Furnaces therefor
- C21D3/02—Extraction of non-metals
- C21D3/04—Decarburising
-
- 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
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
-
- 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
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1244—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest
- C21D8/1255—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest with diffusion of elements, e.g. decarburising, nitriding
-
- 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
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1244—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest
- C21D8/1272—Final recrystallisation annealing
-
- 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
- C22C38/04—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
- C22C38/14—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
- C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
-
- 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
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/02—Pretreatment of the material to be coated
-
- 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
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/80—After-treatment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/16—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of sheets
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Power Engineering (AREA)
- Dispersion Chemistry (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
- Soft Magnetic Materials (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
método de produção de chapa de aço elétrico com grão orientado. uma laminação a quente é executada em um aço com uma composição predeterminada contendo ti: 0,0020% em massa a 0,010% em massa e/ou cu: 0,010% em massa a 0,50% em massa para obter uma chapa de aço laminada a quente. um recozimento é executado na chapa de aço laminada a quente para obter uma chapa de aço recozida. uma laminação a frio é executada na chapa de aço recozida para obter uma chapa de aço laminada a frio. um recozimento de descarburação é executado na chapa de aço laminada a frio a uma temperatura de 800º c a 950º c para obter uma chapa de aço com recozimento de descarburação. então, um tratamento de nitretação é executado na chapa de aço com recozimento de descarburação a 700º c a 850º c para obter uma chapa de aço nitrificada. um recozimento de acabamento é executado na chapa de aço nitrificada.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010033921 | 2010-02-18 | ||
US2010-033921 | 2010-02-18 | ||
PCT/JP2011/053491 WO2011102456A1 (ja) | 2010-02-18 | 2011-02-18 | 方向性電磁鋼板の製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
BR112012020741A2 true BR112012020741A2 (pt) | 2016-08-23 |
BR112012020741B1 BR112012020741B1 (pt) | 2022-07-19 |
Family
ID=44483041
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR112012020741-5A BR112012020741B1 (pt) | 2010-02-18 | 2011-02-18 | Método de produção de folha de aço para fins elétricos com grão orientado |
Country Status (8)
Country | Link |
---|---|
US (1) | US20120312423A1 (pt) |
EP (1) | EP2537947B1 (pt) |
JP (1) | JP4943559B2 (pt) |
KR (2) | KR20120118504A (pt) |
CN (1) | CN102762752B (pt) |
BR (1) | BR112012020741B1 (pt) |
PL (1) | PL2537947T3 (pt) |
WO (1) | WO2011102456A1 (pt) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103741031B (zh) * | 2013-12-27 | 2016-01-20 | 钢铁研究总院 | 薄板坯连铸连轧含钒普通取向硅钢及其制造方法 |
EP3196320B1 (en) | 2014-09-04 | 2019-08-21 | JFE Steel Corporation | Method for manufacturing directional magnetic steel sheet, and nitriding treatment equipment |
EP3358031B1 (en) * | 2015-09-28 | 2020-09-02 | Nippon Steel Corporation | Grain-oriented electrical steel sheet and hot-rolled steel sheet for grain-oriented electrical steel sheet |
KR101676630B1 (ko) * | 2015-11-10 | 2016-11-16 | 주식회사 포스코 | 방향성 전기강판 및 그 제조방법 |
WO2019013348A1 (ja) * | 2017-07-13 | 2019-01-17 | 新日鐵住金株式会社 | 方向性電磁鋼板 |
RU2727435C1 (ru) | 2017-07-13 | 2020-07-21 | Ниппон Стил Корпорейшн | Лист анизотропной электротехнической стали |
JP6946846B2 (ja) * | 2017-08-17 | 2021-10-13 | 日本製鉄株式会社 | 方向性電磁鋼板の製造方法 |
JP6946847B2 (ja) * | 2017-08-17 | 2021-10-13 | 日本製鉄株式会社 | 方向性電磁鋼板の製造方法 |
KR102099866B1 (ko) * | 2017-12-26 | 2020-04-10 | 주식회사 포스코 | 방향성 전기강판 및 그의 제조방법 |
Family Cites Families (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3276923A (en) * | 1961-04-17 | 1966-10-04 | Gen Electric | Reduction in magnetic losses in electrical induction apparatus |
GB1261945A (en) * | 1968-04-24 | 1972-01-26 | Kobe Steel Ltd | A method for producing a mono-directional silicon steel sheet |
US4202711A (en) * | 1978-10-18 | 1980-05-13 | Armco, Incl. | Process for producing oriented silicon iron from strand cast slabs |
JPS5956522A (ja) * | 1982-09-24 | 1984-04-02 | Nippon Steel Corp | 鉄損の良い一方向性電磁鋼板の製造方法 |
JPS6240315A (ja) * | 1985-08-15 | 1987-02-21 | Nippon Steel Corp | 磁束密度の高い一方向性珪素鋼板の製造方法 |
EP0326912B1 (en) * | 1988-02-03 | 1994-07-27 | Nippon Steel Corporation | Process for production of grain oriented electrical steel sheet having high flux density |
JPH0686632B2 (ja) * | 1988-02-03 | 1994-11-02 | 新日本製鐵株式会社 | 磁束密度の高い一方向性珪素鋼板の製造方法 |
US5759293A (en) * | 1989-01-07 | 1998-06-02 | Nippon Steel Corporation | Decarburization-annealed steel strip as an intermediate material for grain-oriented electrical steel strip |
JPH02200733A (ja) * | 1989-01-31 | 1990-08-09 | Nippon Steel Corp | 高磁束密度方向性電磁鋼板の製造方法 |
US5186762A (en) * | 1989-03-30 | 1993-02-16 | Nippon Steel Corporation | Process for producing grain-oriented electrical steel sheet having high magnetic flux density |
JPH0774388B2 (ja) * | 1989-09-28 | 1995-08-09 | 新日本製鐵株式会社 | 磁束密度の高い一方向性珪素鋼板の製造方法 |
JPH03122227A (ja) | 1989-10-05 | 1991-05-24 | Nippon Steel Corp | 方向性電磁鋼板の脱炭連続焼鈍炉 |
JPH07122096B2 (ja) * | 1990-11-07 | 1995-12-25 | 新日本製鐵株式会社 | 磁気特性、皮膜特性ともに優れた一方向性電磁鋼板の製造方法 |
JP2620438B2 (ja) * | 1991-10-28 | 1997-06-11 | 新日本製鐵株式会社 | 磁束密度の高い一方向性電磁鋼板の製造方法 |
US5288736A (en) * | 1992-11-12 | 1994-02-22 | Armco Inc. | Method for producing regular grain oriented electrical steel using a single stage cold reduction |
JP3065853B2 (ja) * | 1992-12-08 | 2000-07-17 | 新日本製鐵株式会社 | 磁気特性の優れた一方向性電磁鋼板の安定製造方法 |
JPH06256847A (ja) | 1993-03-03 | 1994-09-13 | Nippon Steel Corp | 磁気特性の優れた一方向性電磁鋼板の製造方法 |
JP2951852B2 (ja) * | 1994-09-30 | 1999-09-20 | 川崎製鉄株式会社 | 磁気特性に優れる一方向性珪素鋼板の製造方法 |
JP3056970B2 (ja) * | 1995-04-07 | 2000-06-26 | 新日本製鐵株式会社 | 磁気特性が優れた一方向性電磁鋼板の製造方法 |
IT1290977B1 (it) | 1997-03-14 | 1998-12-14 | Acciai Speciali Terni Spa | Procedimento per il controllo dell'inibizione nella produzione di lamierino magnetico a grano orientato |
JP3481491B2 (ja) | 1998-03-30 | 2003-12-22 | 新日本製鐵株式会社 | 磁気特性に優れた一方向性電磁鋼板の製造方法 |
JP4261633B2 (ja) | 1998-05-11 | 2009-04-30 | 新日本製鐵株式会社 | 一方向性電磁鋼板の製造方法 |
EP1162280B1 (en) * | 2000-06-05 | 2013-08-07 | Nippon Steel & Sumitomo Metal Corporation | Method for producing a grain-oriented electrical steel sheet excellent in magnetic properties |
JP4272557B2 (ja) * | 2004-02-12 | 2009-06-03 | 新日本製鐵株式会社 | 磁気特性に優れた一方向性電磁鋼板の製造方法 |
RU2363739C1 (ru) * | 2005-06-10 | 2009-08-10 | Ниппон Стил Корпорейшн | Текстурированная электротехническая листовая сталь с исключительно высокими магнитными свойствами и способ ее производства |
JP4598702B2 (ja) * | 2006-03-23 | 2010-12-15 | 新日本製鐵株式会社 | 磁気特性が優れた高Si含有方向性電磁鋼板の製造方法 |
JP4916847B2 (ja) * | 2006-11-21 | 2012-04-18 | 新日本製鐵株式会社 | 一方向性電磁鋼板の製造方法 |
JP5428188B2 (ja) * | 2008-04-15 | 2014-02-26 | 新日鐵住金株式会社 | 方向性電磁鋼板の製造方法 |
CN101775547B (zh) * | 2009-12-31 | 2012-11-21 | 武汉钢铁(集团)公司 | 高磁感取向硅钢带的生产方法 |
-
2011
- 2011-02-18 WO PCT/JP2011/053491 patent/WO2011102456A1/ja active Application Filing
- 2011-02-18 EP EP11744742.5A patent/EP2537947B1/en active Active
- 2011-02-18 KR KR1020127024187A patent/KR20120118504A/ko active Application Filing
- 2011-02-18 PL PL11744742T patent/PL2537947T3/pl unknown
- 2011-02-18 JP JP2011523633A patent/JP4943559B2/ja active Active
- 2011-02-18 BR BR112012020741-5A patent/BR112012020741B1/pt active IP Right Grant
- 2011-02-18 US US13/579,684 patent/US20120312423A1/en not_active Abandoned
- 2011-02-18 KR KR1020137026864A patent/KR101389248B1/ko active IP Right Grant
- 2011-02-18 CN CN201180009920.4A patent/CN102762752B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
EP2537947A4 (en) | 2017-07-26 |
KR20130119516A (ko) | 2013-10-31 |
JPWO2011102456A1 (ja) | 2013-06-17 |
PL2537947T3 (pl) | 2019-05-31 |
CN102762752A (zh) | 2012-10-31 |
EP2537947A1 (en) | 2012-12-26 |
WO2011102456A1 (ja) | 2011-08-25 |
KR20120118504A (ko) | 2012-10-26 |
EP2537947B1 (en) | 2018-12-19 |
JP4943559B2 (ja) | 2012-05-30 |
US20120312423A1 (en) | 2012-12-13 |
CN102762752B (zh) | 2016-04-13 |
KR101389248B1 (ko) | 2014-04-24 |
BR112012020741B1 (pt) | 2022-07-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
BR112012020741A2 (pt) | "método de produção de chapa de aço elétrico com grão orientado" | |
BR112012020687A2 (pt) | método de produção de chapa de aço elétrico com grão orientado. | |
BR112015017719A2 (pt) | método para produzir folha de aço elétrico de grão orientado | |
BR112012024625A2 (pt) | folha de aço inoxidável ferrítico excelente em brilho de superfície e resistência a corrosão e processo para produção da mesma | |
MX363038B (es) | Metodo para producir hoja de acero laminada en frio. | |
BR112015020187A2 (pt) | método de produção de chapas de aço elétrico de grão orientado | |
BR112013002583A2 (pt) | método de fabricação de chapa de aço elétrica não orientada | |
CO2017003825A2 (es) | Método de producción de hojalata conteniendo una lamina de acero de silicio de grano no orientado, lamina de acero obtenida y uso de esta | |
BR112012021454A2 (pt) | método para produção de chapa de aço elétrico com grão orientado. | |
BR112012023165A2 (pt) | método de produção de chapa de aço elétrico com grão orientado | |
IN2015DN00613A (pt) | ||
BR112018068033A2 (pt) | método de produção de chapa de aço elétrica de grão orientado. | |
MX2014002935A (es) | Metodo para producir una cinta electrica superiormente resistente de grano no orientado y su uso. | |
BR112018000234A2 (pt) | chapa de aço elétrico de grão orientado e método para produção da mesma | |
MX2012005962A (es) | Proceso para fabricar tira de acero electrico de grano orientado y acero electrico de grano orientado producido por el mismo. | |
MX2017002974A (es) | Metodo e instalacion para la produccion de laminas de acero galvanizadas de alta resistencia. | |
MY149801A (en) | A method and a system for producing hot-rolled strip silicon steel based on thin slabs | |
BR112017000010A2 (pt) | "método de produção de uma folha de aço revestida ou não revestida de resistência extremamente alta e folha obtida" | |
MY162617A (en) | Cold rolled steel sheet having excellent shape fixability and method for manufacturing the same | |
BR112016026571A2 (pt) | Método para produção de chapa de aço elétrica orientada a grão | |
IN2012DN01442A (pt) | ||
MX351880B (es) | Procedimiento de fabricacion de aceros al silicio de grano orientado que tienen buen rendimiento magnetico. | |
ZA202103425B (en) | Cold rolled and annealed steel sheet, method of production thereof and use of such steel to produce vehicle parts | |
MX354354B (es) | Metodo para la produccion de una lamina de acero electrico. | |
WO2011095417A3 (de) | Metallband mit einer konstanten metallbandicke und unterschiedlichen mechanischen eigenschaften |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
B25D | Requested change of name of applicant approved |
Owner name: NIPPON STEEL AND SUMITOMO METAL CORPORATION (JP) |
|
B07A | Application suspended after technical examination (opinion) [chapter 7.1 patent gazette] | ||
B09B | Patent application refused [chapter 9.2 patent gazette] | ||
B12B | Appeal against refusal [chapter 12.2 patent gazette] | ||
B25D | Requested change of name of applicant approved |
Owner name: NIPPON STEEL CORPORATION (JP) |
|
B350 | Update of information on the portal [chapter 15.35 patent gazette] | ||
B16A | Patent or certificate of addition of invention granted [chapter 16.1 patent gazette] |
Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 18/02/2011, OBSERVADAS AS CONDICOES LEGAIS. PATENTE CONCEDIDA CONFORME ADI 5.529/DF, QUE DETERMINA A ALTERACAO DO PRAZO DE CONCESSAO. |