Grain Oriented Electrical Steel Sheet And Method For Manufacturing

Grain Oriented Electrical Steel Sheet And Method For Manufacturing Same

Abstract: A grain-oriented electrical steel sheet according to an embodiment of the present invention comprises: a forsterite layer formed on the surface of an electrical steel sheet; a groove which is formed on the forsterite layer in a direction perpendicular to a rolling direction; and a forsterite calcination layer which is formed in the direction of both ends of the electrical steel sheet on the basis of an upper end of the groove and has a width of 1.1 to 1.3 times the width of the groove.

Patent Information

Application #

Filing Date

19 July 2018

Publication Number

41/2018

Publication Type

INA

Invention Field

METALLURGY

Status

Email

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. KWON, Oh Yeoul

c/o POSCO, (Goedong-dong) 6261, Donghaean-ro, Nam-gu, Pohang-si, Gyeongsangbuk-do 37859

2. PARK, Se min

c/o POSCO, (Goedong-dong) 6261, Donghaean-ro, Nam-gu, Pohang-si, Gyeongsangbuk-do 37859

3. PARK, Jong Tae

c/o POSCO, (Goedong-dong) 6261, Donghaean-ro, Nam-gu, Pohang-si, Gyeongsangbuk-do 37859

4. KIM, Jae Kyoum

c/o POSCO, (Goedong-dong) 6261, Donghaean-ro, Nam-gu, Pohang-si, Gyeongsangbuk-do 37859

5. LEE, Seung Gon

c/o POSCO, (Goedong-dong) 6261, Donghaean-ro, Nam-gu, Pohang-si Gyeongsangbuk-do 37859

6. LEE, Won Gul

c/o POSCO, (Goedong-dong) 6261, Donghaean-ro, Nam-gu, Pohang-si Gyeongsangbuk-do 37859

Specification

Documents

Application Documents

#	Name	Date
1	201827027055-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [19-07-2018(online)].pdf	2018-07-19
2	201827027055-STATEMENT OF UNDERTAKING (FORM 3) [19-07-2018(online)].pdf	2018-07-19
3	201827027055-REQUEST FOR EXAMINATION (FORM-18) [19-07-2018(online)].pdf	2018-07-19
4	201827027055-FORM 18 [19-07-2018(online)].pdf	2018-07-19
5	201827027055-FORM 1 [19-07-2018(online)].pdf	2018-07-19
6	201827027055-FIGURE OF ABSTRACT [19-07-2018(online)].pdf	2018-07-19
7	201827027055-DRAWINGS [19-07-2018(online)].pdf	2018-07-19
8	201827027055-DECLARATION OF INVENTORSHIP (FORM 5) [19-07-2018(online)].pdf	2018-07-19
9	201827027055-COMPLETE SPECIFICATION [19-07-2018(online)].pdf	2018-07-19
10	201827027055-Proof of Right (MANDATORY) [23-08-2018(online)].pdf	2018-08-23
11	201827027055-FORM-26 [23-08-2018(online)].pdf	2018-08-23
12	201827027055.pdf	2018-09-24
13	Abstract1.jpg	2018-10-08
14	201827027055-FORM 3 [15-01-2019(online)].pdf	2019-01-15
15	201827027055-ORIGINAL UR 6(1A) FORM 26-040918.pdf	2019-02-19
16	201827027055-ORIGINAL UR 6(1A) FORM 1-040918.pdf	2019-02-19
17	201827027055-PETITION UNDER RULE 137 [23-11-2020(online)].pdf	2020-11-23
18	201827027055-Information under section 8(2) [23-11-2020(online)].pdf	2020-11-23
19	201827027055-FORM 3 [23-11-2020(online)].pdf	2020-11-23
20	201827027055-Verified English translation [03-12-2020(online)].pdf	2020-12-03
21	201827027055-OTHERS [04-03-2021(online)].pdf	2021-03-04
22	201827027055-FER_SER_REPLY [04-03-2021(online)].pdf	2021-03-04
23	201827027055-DRAWING [04-03-2021(online)].pdf	2021-03-04
24	201827027055-COMPLETE SPECIFICATION [04-03-2021(online)].pdf	2021-03-04
25	201827027055-CLAIMS [04-03-2021(online)].pdf	2021-03-04
26	201827027055-ABSTRACT [04-03-2021(online)].pdf	2021-03-04
27	201827027055-FER.pdf	2021-10-18
28	201827027055-Response to office action [12-08-2022(online)].pdf	2022-08-12
29	201827027055-US(14)-HearingNotice-(HearingDate-06-12-2023).pdf	2023-10-30
30	201827027055-Correspondence to notify the Controller [01-12-2023(online)].pdf	2023-12-01
31	201827027055-FORM-26 [04-12-2023(online)].pdf	2023-12-04
32	201827027055-Written submissions and relevant documents [21-12-2023(online)].pdf	2023-12-21
33	201827027055-PatentCertificate02-02-2024.pdf	2024-02-02
34	201827027055-IntimationOfGrant02-02-2024.pdf	2024-02-02

Search Strategy

1	2021-05-2511-07-03AE_25-05-2021.pdf
2	201827027055E_17-07-2020.pdf