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Cold Rolled Steel Sheet And Method For Producing Same
Abstract: When the carbon content silicon content and manganese content of this cold rolled sheet are expressed as [C] [Si] and [Mn] respectively in terms of unit mass% a relationship of (5 × [Si] + [Mn])/[C] > 10 holds and the metal structure contains ferrite at 40% to 90% and martensite at 10% to 60% by area ratio and further contains one or more of perlite at 10% or less by area ratio retained austenite at 5% or less by volume ratio and bainite at 20% or less by area ratio. Furthermore the hardness of the martensite as measured by a nanoindenter satisfies H20/H10 < 1.10 and sHM0 < 20 and TS × ? which is represented by the product of the tensile strength (TS) and hole expansion rate (?) is at least 50000 MPa·%.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
01 July 2014
Publication Number
36/2016
Publication Type
INA
Invention Field
METALLURGY
Status
Email
remfry-sagar@remfry.com
Parent Application
Patent Number
Legal Status
Grant Date
2022-03-21
Renewal Date
Applicants
NIPPON STEEL & SUMITOMO METAL CORPORATION
6 1 Marunouchi 2 chome Chiyoda ku Tokyo
1008071
Inventors
1. NONAKA Toshiki
c/o NIPPON STEEL & SUMITOMO METAL CORPORATION 6 1 Marunouchi 2 chome Chiyoda ku Tokyo
1008071
2. KATO Satoshi
c/o NIPPON STEEL & SUMITOMO METAL CORPORATION 6 1 Marunouchi 2 chome Chiyoda ku Tokyo
1008071
3. KAWASAKI Kaoru
c/o NIPPON STEEL & SUMITOMO METAL CORPORATION 6 1 Marunouchi 2 chome Chiyoda ku Tokyo
1008071
4. TOMOKIYO Toshimasa
c/o NIPPON STEEL & SUMITOMO METAL CORPORATION 6 1 Marunouchi 2 chome Chiyoda ku Tokyo
1008071
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 5404-delnp-2014-Correspondence-Others-(02-07-2014).pdf | 2014-07-02 |
| 1 | 5404-DELNP-2014-RELEVANT DOCUMENTS [30-08-2023(online)].pdf | 2023-08-30 |
| 2 | 5404-DELNP-2014-IntimationOfGrant21-03-2022.pdf | 2022-03-21 |
| 2 | Power of authority.pdf | 2014-07-03 |
| 3 | PCT-IB-304.pdf | 2014-07-03 |
| 3 | 5404-DELNP-2014-PatentCertificate21-03-2022.pdf | 2022-03-21 |
| 4 | Other relevant documents.pdf | 2014-07-03 |
| 4 | 5404-DELNP-2014-2. Marked Copy under Rule 14(2) [10-03-2022(online)].pdf | 2022-03-10 |
| 5 | Form 5.pdf | 2014-07-03 |
| 5 | 5404-DELNP-2014-Retyped Pages under Rule 14(1) [10-03-2022(online)].pdf | 2022-03-10 |
| 6 | Form 3.pdf | 2014-07-03 |
| 6 | 5404-DELNP-2014-Written submissions and relevant documents [01-03-2022(online)].pdf | 2022-03-01 |
| 7 | Form 2+Specification.pdf | 2014-07-03 |
| 7 | 5404-DELNP-2014-Correspondence to notify the Controller [07-02-2022(online)].pdf | 2022-02-07 |
| 8 | drawings.pdf | 2014-07-03 |
| 8 | 5404-DELNP-2014-US(14)-HearingNotice-(HearingDate-16-02-2022).pdf | 2022-01-24 |
| 9 | 5404-DELNP-2014-Correspondence-190819.pdf | 2019-08-22 |
| 9 | 5404-DELNP-2014.pdf | 2014-07-11 |
| 10 | 5404-delnp-2014-Correspondence-Others-(19-09-2014).pdf | 2014-09-19 |
| 10 | 5404-DELNP-2014-Power of Attorney-190819.pdf | 2019-08-22 |
| 11 | 5404-DELNP-2014-ABSTRACT [13-08-2019(online)].pdf | 2019-08-13 |
| 11 | 5404-delnp-2014-Assignment-.pdf | 2014-09-30 |
| 12 | 5404-DELNP-2014-CLAIMS [13-08-2019(online)].pdf | 2019-08-13 |
| 12 | 5404-DELNP-2014-Form 3-011214.pdf | 2014-12-11 |
| 13 | 5404-DELNP-2014-COMPLETE SPECIFICATION [13-08-2019(online)].pdf | 2019-08-13 |
| 13 | 5404-DELNP-2014-Correspondence-011214.pdf | 2014-12-11 |
| 14 | 5404-DELNP-2014-CORRESPONDENCE [13-08-2019(online)].pdf | 2019-08-13 |
| 14 | Marked -up copy of 5404-DELNP-2014.pdf ONLINE | 2015-02-20 |
| 15 | 5404-DELNP-2014-DRAWING [13-08-2019(online)].pdf | 2019-08-13 |
| 15 | Form 13 of 5404-DELNP-2014.pdf ONLINE | 2015-02-20 |
| 16 | 5404-DELNP-2014-FER_SER_REPLY [13-08-2019(online)].pdf | 2019-08-13 |
| 16 | Amended pages of 5404-DELNP-2014.pdf ONLINE | 2015-02-20 |
| 17 | 5404-delnp-2014-table-(20-02-2015).pdf | 2015-02-20 |
| 17 | 5404-DELNP-2014-FORM 3 [13-08-2019(online)].pdf | 2019-08-13 |
| 18 | 5404-delnp-2014-Marked-table-(20-02-2015).pdf | 2015-02-20 |
| 18 | 5404-DELNP-2014-OTHERS [13-08-2019(online)].pdf | 2019-08-13 |
| 19 | 5404-DELNP-2014-Correspondence-100719.pdf | 2019-07-16 |
| 19 | 5404-delnp-2014-Form-13-Copy-(20-02-2015).pdf | 2015-02-20 |
| 20 | 5404-delnp-2014-Description-(20-02-2015).pdf | 2015-02-20 |
| 20 | 5404-DELNP-2014-OTHERS-100719.pdf | 2019-07-16 |
| 21 | 5404-delnp-2014-Correspondance Others-(20-02-2015).pdf | 2015-02-20 |
| 21 | 5404-DELNP-2014-Power of Attorney-100719.pdf | 2019-07-16 |
| 22 | 5404-DELNP-2014-FORM 13 [09-07-2019(online)].pdf | 2019-07-09 |
| 22 | Marked -up copy of 5404-DELNP-2014.pdf | 2015-03-13 |
| 23 | 5404-DELNP-2014-RELEVANT DOCUMENTS [09-07-2019(online)].pdf | 2019-07-09 |
| 23 | Form 13 of 5404-DELNP-2014.pdf | 2015-03-13 |
| 24 | Amended pages of 5404-DELNP-2014.pdf | 2015-03-13 |
| 24 | 5404-DELNP-2014-FER.pdf | 2019-02-15 |
| 25 | 5404-DELNP-2014-FER.pdf | 2019-02-15 |
| 25 | Amended pages of 5404-DELNP-2014.pdf | 2015-03-13 |
| 26 | 5404-DELNP-2014-RELEVANT DOCUMENTS [09-07-2019(online)].pdf | 2019-07-09 |
| 26 | Form 13 of 5404-DELNP-2014.pdf | 2015-03-13 |
| 27 | 5404-DELNP-2014-FORM 13 [09-07-2019(online)].pdf | 2019-07-09 |
| 27 | Marked -up copy of 5404-DELNP-2014.pdf | 2015-03-13 |
| 28 | 5404-delnp-2014-Correspondance Others-(20-02-2015).pdf | 2015-02-20 |
| 28 | 5404-DELNP-2014-Power of Attorney-100719.pdf | 2019-07-16 |
| 29 | 5404-delnp-2014-Description-(20-02-2015).pdf | 2015-02-20 |
| 29 | 5404-DELNP-2014-OTHERS-100719.pdf | 2019-07-16 |
| 30 | 5404-DELNP-2014-Correspondence-100719.pdf | 2019-07-16 |
| 30 | 5404-delnp-2014-Form-13-Copy-(20-02-2015).pdf | 2015-02-20 |
| 31 | 5404-delnp-2014-Marked-table-(20-02-2015).pdf | 2015-02-20 |
| 31 | 5404-DELNP-2014-OTHERS [13-08-2019(online)].pdf | 2019-08-13 |
| 32 | 5404-DELNP-2014-FORM 3 [13-08-2019(online)].pdf | 2019-08-13 |
| 32 | 5404-delnp-2014-table-(20-02-2015).pdf | 2015-02-20 |
| 33 | 5404-DELNP-2014-FER_SER_REPLY [13-08-2019(online)].pdf | 2019-08-13 |
| 33 | Amended pages of 5404-DELNP-2014.pdf ONLINE | 2015-02-20 |
| 34 | 5404-DELNP-2014-DRAWING [13-08-2019(online)].pdf | 2019-08-13 |
| 34 | Form 13 of 5404-DELNP-2014.pdf ONLINE | 2015-02-20 |
| 35 | 5404-DELNP-2014-CORRESPONDENCE [13-08-2019(online)].pdf | 2019-08-13 |
| 35 | Marked -up copy of 5404-DELNP-2014.pdf ONLINE | 2015-02-20 |
| 36 | 5404-DELNP-2014-Correspondence-011214.pdf | 2014-12-11 |
| 36 | 5404-DELNP-2014-COMPLETE SPECIFICATION [13-08-2019(online)].pdf | 2019-08-13 |
| 37 | 5404-DELNP-2014-CLAIMS [13-08-2019(online)].pdf | 2019-08-13 |
| 37 | 5404-DELNP-2014-Form 3-011214.pdf | 2014-12-11 |
| 38 | 5404-DELNP-2014-ABSTRACT [13-08-2019(online)].pdf | 2019-08-13 |
| 38 | 5404-delnp-2014-Assignment-.pdf | 2014-09-30 |
| 39 | 5404-delnp-2014-Correspondence-Others-(19-09-2014).pdf | 2014-09-19 |
| 39 | 5404-DELNP-2014-Power of Attorney-190819.pdf | 2019-08-22 |
| 40 | 5404-DELNP-2014-Correspondence-190819.pdf | 2019-08-22 |
| 40 | 5404-DELNP-2014.pdf | 2014-07-11 |
| 41 | 5404-DELNP-2014-US(14)-HearingNotice-(HearingDate-16-02-2022).pdf | 2022-01-24 |
| 41 | drawings.pdf | 2014-07-03 |
| 42 | Form 2+Specification.pdf | 2014-07-03 |
| 42 | 5404-DELNP-2014-Correspondence to notify the Controller [07-02-2022(online)].pdf | 2022-02-07 |
| 43 | Form 3.pdf | 2014-07-03 |
| 43 | 5404-DELNP-2014-Written submissions and relevant documents [01-03-2022(online)].pdf | 2022-03-01 |
| 44 | Form 5.pdf | 2014-07-03 |
| 44 | 5404-DELNP-2014-Retyped Pages under Rule 14(1) [10-03-2022(online)].pdf | 2022-03-10 |
| 45 | Other relevant documents.pdf | 2014-07-03 |
| 45 | 5404-DELNP-2014-2. Marked Copy under Rule 14(2) [10-03-2022(online)].pdf | 2022-03-10 |
| 46 | PCT-IB-304.pdf | 2014-07-03 |
| 46 | 5404-DELNP-2014-PatentCertificate21-03-2022.pdf | 2022-03-21 |
| 47 | 5404-DELNP-2014-IntimationOfGrant21-03-2022.pdf | 2022-03-21 |
| 47 | Power of authority.pdf | 2014-07-03 |
| 48 | 5404-delnp-2014-Correspondence-Others-(02-07-2014).pdf | 2014-07-02 |
| 48 | 5404-DELNP-2014-RELEVANT DOCUMENTS [30-08-2023(online)].pdf | 2023-08-30 |
Search Strategy
| 1 | 5404DELNP2014Strategy_26-06-2018.pdf |