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Non Oriented Electrical Steel Sheet, And Method For Manufacturing Same
Abstract: A non-oriented electrical steel sheet according to one embodiment of the present invention comprises: 2.5 to 3.8 wt% of Si; 0.1 to 1.5 wt% of Al; 0.1 to 2.0 wt% of Mn; and 0.01 to 0.15 wt% of Cr, with the balance being Fe and inevitable impurities, and satisfies the following expression 1. [Expression 1] [Cr]>([Al]+[Mn])/[Si]/10 (In expression 1, [Cr], [Al], [Mn], and [Si] represent the contents (wt%) of Cr, Al, Mn, and Si, respectively.)
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
13 July 2023
Publication Number
40/2023
Publication Type
INA
Invention Field
METALLURGY
Status
Email
Parent Application
Patent Number
Legal Status
Grant Date
2025-08-14
Renewal Date
Applicants
POSCO CO., LTD
6261, Donghaean-ro, Nam-gu,
Pohang-si,
Gyeongsangbuk-do 37859
Inventors
1. KIM, Jaehoon
c/o POSCO, (Goedong-dong) 6261, Donghaean-ro,
Nam-gu, Pohang-si,
Gyeongsangbuk-do 37859
2. SHIN, Suyong
c/o POSCO, (Goedong-dong) 6261, Donghaean-ro,
Nam-gu, Pohang-si,
Gyeongsangbuk-do 37859
3. KOO, Jooyoung
c/o POSCO, (Goedong-dong) 6261, Donghaean-ro,
Nam-gu, Pohang-si,
Gyeongsangbuk-do 37859
4. KIM, Seungil
c/o POSCO, (Goedong-dong) 6261, Donghaean-ro,
Nam-gu, Pohang-si,
Gyeongsangbuk-do 37859
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 202337047170-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [13-07-2023(online)].pdf | 2023-07-13 |
| 2 | 202337047170-STATEMENT OF UNDERTAKING (FORM 3) [13-07-2023(online)].pdf | 2023-07-13 |
| 3 | 202337047170-REQUEST FOR EXAMINATION (FORM-18) [13-07-2023(online)].pdf | 2023-07-13 |
| 4 | 202337047170-PRIORITY DOCUMENTS [13-07-2023(online)].pdf | 2023-07-13 |
| 5 | 202337047170-FORM 18 [13-07-2023(online)].pdf | 2023-07-13 |
| 6 | 202337047170-FORM 1 [13-07-2023(online)].pdf | 2023-07-13 |
| 7 | 202337047170-DRAWINGS [13-07-2023(online)].pdf | 2023-07-13 |
| 8 | 202337047170-DECLARATION OF INVENTORSHIP (FORM 5) [13-07-2023(online)].pdf | 2023-07-13 |
| 9 | 202337047170-COMPLETE SPECIFICATION [13-07-2023(online)].pdf | 2023-07-13 |
| 10 | 202337047170-FORM-26 [19-07-2023(online)].pdf | 2023-07-19 |
| 11 | 202337047170-FORM 3 [09-11-2023(online)].pdf | 2023-11-09 |
| 12 | 202337047170-Proof of Right [03-01-2024(online)].pdf | 2024-01-03 |
| 13 | 202337047170-FER.pdf | 2024-08-29 |
| 14 | 202337047170-FORM 3 [03-10-2024(online)].pdf | 2024-10-03 |
| 15 | 202337047170-FER_SER_REPLY [24-02-2025(online)].pdf | 2025-02-24 |
| 16 | 202337047170-CLAIMS [24-02-2025(online)].pdf | 2025-02-24 |
| 17 | 202337047170-US(14)-HearingNotice-(HearingDate-21-07-2025).pdf | 2025-06-30 |
| 18 | 202337047170-Response to office action [01-07-2025(online)].pdf | 2025-07-01 |
| 19 | 202337047170-Correspondence to notify the Controller [18-07-2025(online)].pdf | 2025-07-18 |
| 20 | 202337047170-FORM 3 [28-07-2025(online)].pdf | 2025-07-28 |
| 21 | 202337047170-Written submissions and relevant documents [04-08-2025(online)].pdf | 2025-08-04 |
| 22 | 202337047170-PatentCertificate14-08-2025.pdf | 2025-08-14 |
| 23 | 202337047170-IntimationOfGrant14-08-2025.pdf | 2025-08-14 |
Search Strategy
| 1 | SEARCHE_23-08-2024.pdf |
| 2 | 202337047170_SearchStrategyAmended_E_SearchHistory(3)AE_19-06-2025.pdf |