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“ High Strength Electrical Steel Sheet And Method Of Production Of Same”
Abstract: Production of a high-strength electromagnetic steel sheet with a tensile strength as high as 500 MPa or greater, exhibiting not only wear resistance but also magnetic characteristics excelling in magnetic flux density and iron loss. There is provided a process for producing a high-strength electromagnetic steel sheet containing, by mass, 0.060% or less C, 0.2-6.5% Si, 0.05-3.0% Mn, 0.30% or less P, 0.040% or less S or Se, 2.50% or less Al and 0.020% or less N, optionally further containing at least one member selected from among 0.001-30.0% Cu and 0.03-8.0% Nb wherein a worked structure remains in the interior of the steel sheet, which process includes enlarging the average crystal grain diameter (D, μm) of the sheet just before the step o...
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
21 November 2008
Publication Number
31/2009
Publication Type
INA
Invention Field
METALLURGY
Status
Email
Parent Application
Patent Number
Legal Status
Grant Date
2017-02-23
Renewal Date
Applicants
NIPPON STEEL CORPORATION
6-3 Otemachi 2-chome Chiyoda-ku Tokyo
Inventors
1. HIDEKUNI MURAKAMI
c/o NIPPON STEEL CORPORATION YAWATA WORKS 1-1 Tobihatacho Tobata-ku Kitakyushu-shi Fukuoka 8048501
Specification
see the attachment
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 9718-DELNP-2008-RELEVANT DOCUMENTS [30-08-2023(online)].pdf | 2023-08-30 |
| 1 | Translation-Search Report.pdf | 2011-08-20 |
| 2 | 9718-DELNP-2008-RELEVANT DOCUMENTS [24-09-2022(online)].pdf | 2022-09-24 |
| 2 | Form-5.doc | 2011-08-20 |
| 3 | Form-3.doc | 2011-08-20 |
| 3 | 9718-DELNP-2008-RELEVANT DOCUMENTS [26-07-2021(online)].pdf | 2021-07-26 |
| 4 | Form-1.pdf | 2011-08-20 |
| 4 | 9718-DELNP-2008-RELEVANT DOCUMENTS [24-02-2020(online)].pdf | 2020-02-24 |
| 5 | Drawings.pdf | 2011-08-20 |
| 5 | 280592-OTHERS-120719.pdf | 2019-07-25 |
| 6 | 9718-delnp-2008-Form-18-(04-10-2012).pdf | 2012-10-04 |
| 6 | 280592-Correspondence-120719.pdf | 2019-07-20 |
| 7 | 9718-delnp-2008-Correspondence-Others-(04-10-2012).pdf | 2012-10-04 |
| 7 | 280592-Power of Attorney-120719.pdf | 2019-07-20 |
| 8 | 9718-DELNP-2008-PROOF OF ALTERATION [09-07-2019(online)].pdf | 2019-07-09 |
| 8 | 9718-delnp-2008-Form-3-(17-01-2013).pdf | 2013-01-17 |
| 9 | 9718-delnp-2008-Correspondence-Others-(17-01-2013).pdf | 2013-01-17 |
| 9 | 9718-DELNP-2008-RELEVANT DOCUMENTS [22-02-2019(online)].pdf | 2019-02-22 |
| 10 | 9718-delnp-2008-GPA-(12-07-2013).pdf | 2013-07-12 |
| 10 | 9718-DELNP-2008-RELEVANT DOCUMENTS [17-02-2018(online)].pdf | 2018-02-17 |
| 11 | 9718-delnp-2008-Form-2-(12-07-2013).pdf | 2013-07-12 |
| 11 | Other Patent Document [21-11-2016(online)].pdf | 2016-11-21 |
| 12 | 9718-delnp-2008-Form-1-(12-07-2013).pdf | 2013-07-12 |
| 12 | 9718-DELNP-2008_EXAMREPORT.pdf | 2016-06-30 |
| 13 | 9718-delnp-2008-Correspondence-Others-(12-07-2013).pdf | 2013-07-12 |
| 13 | Form 3 [25-05-2016(online)].pdf | 2016-05-25 |
| 14 | 9718-delnp-2008-Form-3-(15-01-2014).pdf | 2014-01-15 |
| 14 | Other Document [20-05-2016(online)].pdf | 2016-05-20 |
| 15 | 9718-delnp-2008-Correspondence Others-(15-01-2014).pdf | 2014-01-15 |
| 15 | Petition Under Rule 137 [20-05-2016(online)].pdf | 2016-05-20 |
| 16 | 9718-delnp-2008-Correspondence Others-(15-12-2015).pdf | 2015-12-15 |
| 16 | Section 8(2) details.pdf | 2015-05-18 |
| 17 | OTHERS.pdf | 2015-05-18 |
| 17 | 9718-delnp-2008-Correspondence Others-(19-05-2015).pdf | 2015-05-19 |
| 18 | 9718-delnp-2008-GPA-(19-05-2015).pdf | 2015-05-19 |
| 18 | FER REPLY.pdf | 2015-05-18 |
| 19 | 9718 delnp 2008 petition under rule 137.pdf | 2015-05-18 |
| 19 | Complete specs.pdf | 2015-05-18 |
| 20 | Abstract.pdf | 2015-05-18 |
| 20 | Claims.pdf | 2015-05-18 |
| 21 | Abstract.pdf | 2015-05-18 |
| 21 | Claims.pdf | 2015-05-18 |
| 22 | 9718 delnp 2008 petition under rule 137.pdf | 2015-05-18 |
| 22 | Complete specs.pdf | 2015-05-18 |
| 23 | 9718-delnp-2008-GPA-(19-05-2015).pdf | 2015-05-19 |
| 23 | FER REPLY.pdf | 2015-05-18 |
| 24 | OTHERS.pdf | 2015-05-18 |
| 24 | 9718-delnp-2008-Correspondence Others-(19-05-2015).pdf | 2015-05-19 |
| 25 | 9718-delnp-2008-Correspondence Others-(15-12-2015).pdf | 2015-12-15 |
| 25 | Section 8(2) details.pdf | 2015-05-18 |
| 26 | 9718-delnp-2008-Correspondence Others-(15-01-2014).pdf | 2014-01-15 |
| 26 | Petition Under Rule 137 [20-05-2016(online)].pdf | 2016-05-20 |
| 27 | 9718-delnp-2008-Form-3-(15-01-2014).pdf | 2014-01-15 |
| 27 | Other Document [20-05-2016(online)].pdf | 2016-05-20 |
| 28 | 9718-delnp-2008-Correspondence-Others-(12-07-2013).pdf | 2013-07-12 |
| 28 | Form 3 [25-05-2016(online)].pdf | 2016-05-25 |
| 29 | 9718-delnp-2008-Form-1-(12-07-2013).pdf | 2013-07-12 |
| 29 | 9718-DELNP-2008_EXAMREPORT.pdf | 2016-06-30 |
| 30 | 9718-delnp-2008-Form-2-(12-07-2013).pdf | 2013-07-12 |
| 30 | Other Patent Document [21-11-2016(online)].pdf | 2016-11-21 |
| 31 | 9718-delnp-2008-GPA-(12-07-2013).pdf | 2013-07-12 |
| 31 | 9718-DELNP-2008-RELEVANT DOCUMENTS [17-02-2018(online)].pdf | 2018-02-17 |
| 32 | 9718-delnp-2008-Correspondence-Others-(17-01-2013).pdf | 2013-01-17 |
| 32 | 9718-DELNP-2008-RELEVANT DOCUMENTS [22-02-2019(online)].pdf | 2019-02-22 |
| 33 | 9718-delnp-2008-Form-3-(17-01-2013).pdf | 2013-01-17 |
| 33 | 9718-DELNP-2008-PROOF OF ALTERATION [09-07-2019(online)].pdf | 2019-07-09 |
| 34 | 280592-Power of Attorney-120719.pdf | 2019-07-20 |
| 34 | 9718-delnp-2008-Correspondence-Others-(04-10-2012).pdf | 2012-10-04 |
| 35 | 280592-Correspondence-120719.pdf | 2019-07-20 |
| 35 | 9718-delnp-2008-Form-18-(04-10-2012).pdf | 2012-10-04 |
| 36 | 280592-OTHERS-120719.pdf | 2019-07-25 |
| 36 | Drawings.pdf | 2011-08-20 |
| 37 | Form-1.pdf | 2011-08-20 |
| 37 | 9718-DELNP-2008-RELEVANT DOCUMENTS [24-02-2020(online)].pdf | 2020-02-24 |
| 38 | 9718-DELNP-2008-RELEVANT DOCUMENTS [26-07-2021(online)].pdf | 2021-07-26 |
| 39 | 9718-DELNP-2008-RELEVANT DOCUMENTS [24-09-2022(online)].pdf | 2022-09-24 |
| 40 | Translation-Search Report.pdf | 2011-08-20 |
| 40 | 9718-DELNP-2008-RELEVANT DOCUMENTS [30-08-2023(online)].pdf | 2023-08-30 |