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"Aluminum Plated Steel Sheet For Hot Pressing With Rapid Heating, Process For Producing Same, And Method Of Hot Pressing Same With Rapid Heating"

Abstract: The present invention solves the problem of melting of Al in heating before hot-stamping, which had been a problem in the past in applying hot-stamping to Al-plated steel sheet, and provides Al-plated steel sheet for hot-stamping and a method of hot-stamping using that Al-plated steel sheet to solve the problem of delayed fracture due to residual hydrogen, and, furthermore, a method of a rapid heating hot-stamping using that Al-plated steel sheet. The Al-plated steel sheet of the present invention is produced by annealing the Al-plated steel sheet as coiled in a box-anneal furnace for the time and at the temperature indicated in Fig. 5, and alloying of a plated Al and a steel sheet. Further, a method of rapid heating hot-stamping in the present invention is characterized by cutting out a stamping blank of an Al-plated steel sheet, and heating that blank in heating before hot-stamping by an average temperature with a rising rate of 40°C/sec or more and a time of exposure to an environment of 700°C or more of 20 seconds or less, and then hot-stamping it.

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Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
05 January 2011
Publication Number
09/2012
Publication Type
INA
Invention Field
METALLURGY
Status
Email
Parent Application
Patent Number
Legal Status
Grant Date
2019-12-20
Renewal Date

Applicants

NIPPON STEEL CORPORATION
6-1, MARUNOUCHI 2-CHOME, CHIYODA-KU, TOKYO 1008071, JAPAN

Inventors

1. JUN MAKI
NIPPON STEEL CORPORATION, 6-1, MARUNOUCHI 2-CHOME, CHIYODA-KU, TOKYO 1008071, JAPAN
2. MASAYUKI ABE
NIPPON STEEL CORPORATION, 6-1, MARUNOUCHI 2-CHOME, CHIYODA-KU, TOKYO 1008071, JAPAN
3. KAZUHISA KUSUMI
NIPPON STEEL CORPORATION, 6-1, MARUNOUCHI 2-CHOME, CHIYODA-KU, TOKYO 1008071, JAPAN
4. YASUSHI TSUKANO
NIPPON STEEL CORPORATION, 6-1, MARUNOUCHI 2-CHOME, CHIYODA-KU, TOKYO 1008071, JAPAN

Specification

Documents

Application Documents

# Name Date
1 82-delnp-2011-Form-3-(18-07-2011).pdf 2011-07-18
2 82-delnp-2011-Correspondence-Others-(18-07-2011).pdf 2011-07-18
3 82-delnp-2011-gpa.pdf 2011-08-20
4 82-delnp-2011-form-5.pdf 2011-08-20
5 82-delnp-2011-form-3.pdf 2011-08-20
6 82-delnp-2011-form-2.pdf 2011-08-20
7 82-delnp-2011-form-18.pdf 2011-08-20
8 82-delnp-2011-form-1.pdf 2011-08-20
9 82-delnp-2011-drawings.pdf 2011-08-20
10 82-delnp-2011-description (complete).pdf 2011-08-20
11 82-delnp-2011-correspondence-others.pdf 2011-08-20
12 82-delnp-2011-claims.pdf 2011-08-20
13 82-delnp-2011-abstract.pdf 2011-08-20
14 82-delnp-2011-Form-3-(13-09-2011).pdf 2011-09-13
15 82-delnp-2011-Correspondence-Others-(13-09-2011).pdf 2011-09-13
16 82-delnp-2011-English translation of Priority Document-(14-11-2011).pdf 2011-11-14
17 82-delnp-2011-Correspondence others-(14-11-2011).pdf 2011-11-14
18 82-delnp-2011-Form-3-(16-01-2013).pdf 2013-01-16
19 82-delnp-2011-Correspondence-Others-(16-01-2013).pdf 2013-01-16
20 82-delnp-2011-GPA-(01-07-2013).pdf 2013-07-01
21 82-delnp-2011-Form-2-(01-07-2013).pdf 2013-07-01
22 82-delnp-2011-Correspondence Others-(01-07-2013).pdf 2013-07-01
23 82-delnp-2011-Form-3-(12-07-2013).pdf 2013-07-12
24 82-delnp-2011-Correspondence-Others-(12-07-2013).pdf 2013-07-12
25 82-delnp-2011-Form-3-(24-01-2014).pdf 2014-01-24
26 82-delnp-2011-Correspondence-Others-(24-01-2014).pdf 2014-01-24
27 82-delnp-2011-Form-3-(27-08-2014).pdf 2014-08-27
28 82-delnp-2011-Correspondence-Others-(27-08-2014).pdf 2014-08-27
29 82-delnp-2011-Form-3-(05-05-2015).pdf 2015-05-05
30 82-delnp-2011-Correspondence Others-(05-05-2015).pdf 2015-05-05
31 Form 3 [27-01-2017(online)].pdf 2017-01-27
32 82-DELNP-2011-FER.pdf 2017-09-14
33 82-DELNP-2011-PETITION UNDER RULE 137 [05-02-2018(online)].pdf 2018-02-05
34 82-DELNP-2011-FORM 3 [05-02-2018(online)].pdf 2018-02-05
35 82-DELNP-2011-FER_SER_REPLY [06-02-2018(online)].pdf 2018-02-06
36 82-DELNP-2011-DRAWING [06-02-2018(online)].pdf 2018-02-06
37 82-DELNP-2011-CORRESPONDENCE [06-02-2018(online)].pdf 2018-02-06
38 82-DELNP-2011-COMPLETE SPECIFICATION [06-02-2018(online)].pdf 2018-02-06
39 82-DELNP-2011-CLAIMS [06-02-2018(online)].pdf 2018-02-06
40 82-DELNP-2011-ABSTRACT [06-02-2018(online)].pdf 2018-02-06
41 201817001285-OTHERS-190118-.pdf 2018-02-12
42 201817001285-Correspondence-190118-.pdf 2018-02-12
43 82-DELNP-2011-OTHERS-070218.pdf 2018-02-28
44 82-delnp-2011-GPA-070218..pdf 2018-03-19
45 82-delnp-2011-Correspondence-070218..pdf 2018-03-19
46 82-DELNP-2011-GPA-070218.pdf 2018-03-23
47 82-DELNP-2011-Correspondence-070218.pdf 2018-03-23
48 82-DELNP-2011-RELEVANT DOCUMENTS [13-06-2019(online)].pdf 2019-06-13
49 82-DELNP-2011-FORM 13 [13-06-2019(online)].pdf 2019-06-13
50 82-DELNP-2011-Power of Attorney-140619.pdf 2019-06-26
51 82-DELNP-2011-OTHERS-140619.pdf 2019-06-26
52 82-DELNP-2011-Correspondence-140619.pdf 2019-06-26
53 82-DELNP-2011-HearingNoticeLetter-(DateOfHearing-21-11-2019).pdf 2019-11-04
54 82-DELNP-2011-Correspondence to notify the Controller (Mandatory) [15-11-2019(online)].pdf 2019-11-15
55 82-DELNP-2011-Written submissions and relevant documents (MANDATORY) [05-12-2019(online)].pdf 2019-12-05
56 82-DELNP-2011-PETITION UNDER RULE 137 [05-12-2019(online)].pdf 2019-12-05
57 82-DELNP-2011-PETITION UNDER RULE 138 [06-12-2019(online)].pdf 2019-12-06
58 82-DELNP-2011-Retyped Pages under Rule 14(1) (MANDATORY) [09-12-2019(online)].pdf 2019-12-09
59 82-DELNP-2011-2. Marked Copy under Rule 14(2) (MANDATORY) [09-12-2019(online)].pdf 2019-12-09
60 82-DELNP-2011-PatentCertificate20-12-2019.pdf 2019-12-20
61 82-DELNP-2011-IntimationOfGrant20-12-2019.pdf 2019-12-20
62 82-DELNP-2011-RELEVANT DOCUMENTS [20-02-2020(online)].pdf 2020-02-20
63 82-DELNP-2011-RELEVANT DOCUMENTS [26-07-2021(online)].pdf 2021-07-26
64 82-DELNP-2011-RELEVANT DOCUMENTS [23-09-2022(online)].pdf 2022-09-23
65 82-DELNP-2011-RELEVANT DOCUMENTS [30-08-2023(online)].pdf 2023-08-30

Search Strategy

1 82DEL2011SearchStrategy_07-04-2017.pdf

ERegister / Renewals

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