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“High Strength Hot Dip Galvanized Steel Sheet Excellent In Bake Hardenability And Manufacturing Method Of Said Galvanized Steel Sheet”
Abstract: 132The present invention relates to a steel which contains C Si Mn P S Al N and O each a remainder of which is formed of Fe and inevitable impurities. In a range between a 1/8 thickness around a 1/4 plate thickness from a surface of a base material steel sheet to a 3/8 thickness around the 1/4 plate thickness from the surface a formation of the base material contains a residual austenite aspect with a volume fraction of 3% or higher a ferrite phase of 50% or lower and a hard aspect of 40% or higher. An average dislocation density is 5×10/m or higher and the solution C amount contained in the residual austenite aspect is from 0.70 wt% to 1.00 wt%. A random strength ratio of an X ray of an FCC iron of an aggregate structure of the residual austenite aspect is 3.0 or below. A ratio of a particle diameter with respect to a rolling direction of the residual austenite aspect to a particle diameter with respect to a plate width direction is from 0.75 to 1.33. A galvannealed layer is formed at a surface of the base material. The plate thickness is from 0.6 mm to 5.0 mm.
Notices, Deadlines & Correspondence
Patent Information
Applicants
NIPPON STEEL & SUMITOMO METAL CORPORATION
Inventors
1. KAWATA Hiroyuki
2. MARUYAMA Naoki
3. MURASATO Akinobu
4. MINAMI Akinobu
5. YASUI Takeshi
6. KUWAYAMA Takuya
7. BAN Hiroyuki
8. HIRAMATSU Kaoru
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | pct ib 304.pdf | 2014-04-02 |
| 2 | GPOA.pdf | 2014-04-02 |
| 3 | FORM 5.pdf | 2014-04-02 |
| 4 | FORM 3.pdf | 2014-04-02 |
| 5 | cpd.pdf | 2014-04-02 |
| 6 | COMPLETE SPECIFICATION.pdf | 2014-04-02 |
| 7 | 2552-DELNP-2014-Correspondence-Others-(09-04-2014).pdf | 2014-04-09 |
| 8 | 2552-delnp-2014-Form-3-(01-10-2014).pdf | 2014-10-01 |
| 9 | 2552-delnp-2014-Correspondence-Others-(01-10-2014).pdf | 2014-10-01 |
| 10 | 2552-DELNP-2014-Correspondence-others-(10-10-2014).pdf | 2014-10-10 |
| 11 | Marked up Claims.pdf | 2014-11-14 |
| 12 | Form 13.pdf | 2014-11-14 |
| 13 | Copy of Amended Claims.pdf | 2014-11-14 |
| 14 | 2552-DELNP-2014.pdf | 2014-11-14 |
| 15 | 2552-DELNP-2014-FER.pdf | 2019-01-24 |
| 16 | 2552-DELNP-2014-RELEVANT DOCUMENTS [10-06-2019(online)].pdf | 2019-06-10 |
| 17 | 2552-DELNP-2014-FORM 13 [10-06-2019(online)].pdf | 2019-06-10 |
| 18 | 2552-DELNP-2014-Power of Attorney-120619.pdf | 2019-06-21 |
| 19 | 2552-DELNP-2014-Correspondence-120619.pdf | 2019-06-21 |
| 20 | 2552-DELNP-2014-PETITION UNDER RULE 137 [27-06-2019(online)].pdf | 2019-06-27 |
| 21 | 2552-DELNP-2014-OTHERS [27-06-2019(online)].pdf | 2019-06-27 |
| 22 | 2552-DELNP-2014-FER_SER_REPLY [27-06-2019(online)].pdf | 2019-06-27 |
| 23 | 2552-DELNP-2014-COMPLETE SPECIFICATION [27-06-2019(online)].pdf | 2019-06-27 |
| 24 | 2552-DELNP-2014-CLAIMS [27-06-2019(online)].pdf | 2019-06-27 |
| 25 | 2552-DELNP-2014-ABSTRACT [27-06-2019(online)].pdf | 2019-06-27 |
| 26 | 2552-DELNP-2014-OTHERS-120619.pdf | 2019-07-02 |
| 27 | 2552-DELNP-2014-FORM 3 [20-12-2019(online)].pdf | 2019-12-20 |
| 28 | 2552-DELNP-2014-FORM 3 [21-05-2021(online)].pdf | 2021-05-21 |
| 29 | 2552-DELNP-2014-Correspondence to notify the Controller [31-05-2021(online)].pdf | 2021-05-31 |
| 30 | 2552-DELNP-2014-PETITION UNDER RULE 138 [23-06-2021(online)].pdf | 2021-06-23 |
| 31 | 2552-DELNP-2014-Written submissions and relevant documents [20-07-2021(online)].pdf | 2021-07-20 |
| 32 | 2552-DELNP-2014-Response to office action [29-07-2021(online)].pdf | 2021-07-29 |
| 33 | 2552-DELNP-2014-Response to office action [29-07-2021(online)]-1.pdf | 2021-07-29 |
| 34 | 2552-DELNP-2014-Response to office action [31-08-2021(online)].pdf | 2021-08-31 |
| 35 | 2552-DELNP-2014-Response to office action [24-09-2021(online)].pdf | 2021-09-24 |
| 36 | 2552-DELNP-2014-PatentCertificate27-09-2021.pdf | 2021-09-27 |
| 37 | 2552-DELNP-2014-IntimationOfGrant27-09-2021.pdf | 2021-09-27 |
| 38 | 2552-DELNP-2014-US(14)-HearingNotice-(HearingDate-08-06-2021).pdf | 2021-10-17 |
| 39 | 2552-DELNP-2014-RELEVANT DOCUMENTS [30-08-2023(online)].pdf | 2023-08-30 |
Search Strategy
| 1 | SearchStrategy2552DELNP2014_04-06-2018.pdf |