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Oriented Electrical Steel Sheet And Method For Preparing Same
Abstract: An oriented electrical steel sheet according to an embodiment of the present invention comprises, in weight %, 1.0%-5.0% of Si, 0.005% or less of C (not including 0%), 0.001%-0.1% of Mn, 0.001%-0.1% of Cu, 0.001%-0.020% of S, 0.001%-0.050% of Se, 0.0005%-0.010% of A1 and 0.0005%-0.005% of N, and the remainder being Fe and other unavoidable impurities. The oriented electrical steel sheet according to an embodiment of the present invention satisfies following formula [1]. Formula [1]: 16 = (10?[?n] + [Cu])/([S] + [Se])+(0.02-[Al])/[N] = 20 (In formula [1], [Mn], [Cu], [S], [Se], [Al] and [N] indicate the content (weight %) of Mn, Cu, S, Se, Al and N, respectively.)
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
20 July 2020
Publication Number
40/2020
Publication Type
INA
Invention Field
METALLURGY
Status
Email
shiva@knspartners.com
Parent Application
Patent Number
Legal Status
Grant Date
2024-02-02
Renewal Date
Applicants
POSCO
(Goedong-dong)
6261, Donghaean-ro, Nam-gu
Pohang-si,
Gyeongsangbuk-do 37859
Inventors
1. KIM, Jae Kyoum
c/o POSCO, (Goedong-dong)
6261, Donghaean-ro, Nam-gu,
Pohang-si, Gyeongsangbuk-do 37859
2. HAN, Kyu-Seok
c/o POSCO, (Goedong-dong)
6261, Donghaean-ro, Nam-gu
Pohang-si
Gyeongsangbuk-do 37859
3. PARK, Chang Soo
c/o POSCO, (Goedong-dong)
6261, Donghaean-ro, Nam-gu
Pohang-si
Gyeongsangbuk-do 37859
4. SEO, Jin-Wook
c/o POSCO, (Goedong-dong) 6261, Donghaean-ro,
Nam-gu Pohang-si
Gyeongsangbuk-do 37859
5. PARK, Yujun
c/o POSCO, (Goedong-dong)
6261, Donghaean-ro, Nam-gu
Pohang-si
Gyeongsangbuk-do 37859
Specification
Documents
Orders
| Section | Controller | Decision Date |
|---|---|---|
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 202047030917-IntimationOfGrant02-02-2024.pdf | 2024-02-02 |
| 1 | 202047030917.pdf | 2020-07-20 |
| 2 | 202047030917-PatentCertificate02-02-2024.pdf | 2024-02-02 |
| 2 | 202047030917-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [20-07-2020(online)].pdf | 2020-07-20 |
| 3 | 202047030917-STATEMENT OF UNDERTAKING (FORM 3) [20-07-2020(online)].pdf | 2020-07-20 |
| 3 | 202047030917-FORM 3 [30-01-2024(online)].pdf | 2024-01-30 |
| 4 | 202047030917-REQUEST FOR EXAMINATION (FORM-18) [20-07-2020(online)].pdf | 2020-07-20 |
| 4 | 202047030917-FORM-26 [24-01-2024(online)].pdf | 2024-01-24 |
| 5 | 202047030917-Written submissions and relevant documents [24-01-2024(online)].pdf | 2024-01-24 |
| 5 | 202047030917-PROOF OF RIGHT [20-07-2020(online)].pdf | 2020-07-20 |
| 6 | 202047030917-POWER OF AUTHORITY [20-07-2020(online)].pdf | 2020-07-20 |
| 6 | 202047030917-PETITION UNDER RULE 138 [26-12-2023(online)].pdf | 2023-12-26 |
| 7 | 202047030917-FORM 18 [20-07-2020(online)].pdf | 2020-07-20 |
| 7 | 202047030917-Correspondence to notify the Controller [08-12-2023(online)].pdf | 2023-12-08 |
| 8 | 202047030917-FORM 1 [20-07-2020(online)].pdf | 2020-07-20 |
| 8 | 202047030917-Duplicate-US(14)-HearingNotice-(HearingDate-11-12-2023).pdf | 2023-10-20 |
| 9 | 202047030917-DECLARATION OF INVENTORSHIP (FORM 5) [20-07-2020(online)].pdf | 2020-07-20 |
| 9 | 202047030917-US(14)-HearingNotice-(HearingDate-11-12-2023).pdf | 2023-10-20 |
| 10 | 202047030917-ABSTRACT [06-06-2022(online)].pdf | 2022-06-06 |
| 10 | 202047030917-COMPLETE SPECIFICATION [20-07-2020(online)].pdf | 2020-07-20 |
| 11 | 202047030917-CLAIMS [06-06-2022(online)].pdf | 2022-06-06 |
| 11 | 202047030917-FORM 3 [28-09-2020(online)].pdf | 2020-09-28 |
| 12 | 202047030917-FER.pdf | 2021-12-07 |
| 12 | 202047030917-FER_SER_REPLY [06-06-2022(online)].pdf | 2022-06-06 |
| 13 | 202047030917-FORM 3 [06-06-2022(online)].pdf | 2022-06-06 |
| 13 | 202047030917-OTHERS [06-06-2022(online)].pdf | 2022-06-06 |
| 14 | 202047030917-Information under section 8(2) [06-06-2022(online)].pdf | 2022-06-06 |
| 15 | 202047030917-FORM 3 [06-06-2022(online)].pdf | 2022-06-06 |
| 15 | 202047030917-OTHERS [06-06-2022(online)].pdf | 2022-06-06 |
| 16 | 202047030917-FER.pdf | 2021-12-07 |
| 16 | 202047030917-FER_SER_REPLY [06-06-2022(online)].pdf | 2022-06-06 |
| 17 | 202047030917-FORM 3 [28-09-2020(online)].pdf | 2020-09-28 |
| 17 | 202047030917-CLAIMS [06-06-2022(online)].pdf | 2022-06-06 |
| 18 | 202047030917-COMPLETE SPECIFICATION [20-07-2020(online)].pdf | 2020-07-20 |
| 18 | 202047030917-ABSTRACT [06-06-2022(online)].pdf | 2022-06-06 |
| 19 | 202047030917-DECLARATION OF INVENTORSHIP (FORM 5) [20-07-2020(online)].pdf | 2020-07-20 |
| 19 | 202047030917-US(14)-HearingNotice-(HearingDate-11-12-2023).pdf | 2023-10-20 |
| 20 | 202047030917-Duplicate-US(14)-HearingNotice-(HearingDate-11-12-2023).pdf | 2023-10-20 |
| 20 | 202047030917-FORM 1 [20-07-2020(online)].pdf | 2020-07-20 |
| 21 | 202047030917-Correspondence to notify the Controller [08-12-2023(online)].pdf | 2023-12-08 |
| 21 | 202047030917-FORM 18 [20-07-2020(online)].pdf | 2020-07-20 |
| 22 | 202047030917-PETITION UNDER RULE 138 [26-12-2023(online)].pdf | 2023-12-26 |
| 22 | 202047030917-POWER OF AUTHORITY [20-07-2020(online)].pdf | 2020-07-20 |
| 23 | 202047030917-PROOF OF RIGHT [20-07-2020(online)].pdf | 2020-07-20 |
| 23 | 202047030917-Written submissions and relevant documents [24-01-2024(online)].pdf | 2024-01-24 |
| 24 | 202047030917-FORM-26 [24-01-2024(online)].pdf | 2024-01-24 |
| 24 | 202047030917-REQUEST FOR EXAMINATION (FORM-18) [20-07-2020(online)].pdf | 2020-07-20 |
| 25 | 202047030917-STATEMENT OF UNDERTAKING (FORM 3) [20-07-2020(online)].pdf | 2020-07-20 |
| 25 | 202047030917-FORM 3 [30-01-2024(online)].pdf | 2024-01-30 |
| 26 | 202047030917-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [20-07-2020(online)].pdf | 2020-07-20 |
| 26 | 202047030917-PatentCertificate02-02-2024.pdf | 2024-02-02 |
| 27 | 202047030917.pdf | 2020-07-20 |
| 27 | 202047030917-IntimationOfGrant02-02-2024.pdf | 2024-02-02 |
Search Strategy
| 1 | patr56AE_04-10-2022.pdf |
| 1 | Search_strategy-SteelE_07-12-2021.pdf |
| 2 | patr56AE_04-10-2022.pdf |
| 2 | Search_strategy-SteelE_07-12-2021.pdf |