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"Grain Oriented Electrical Steel Sheet And Manufacturing Method Thereof"
Abstract: Nitriding process of a steel strip is performed. Next, annealing is performed to form a forsterite based glass coating film at a surface of the steel strip. Heating is performed up to 1000°C or more in a mixed gas atmosphere containing H2 gas and N2 gas, and a rate of N2 gas is 20 volume% or more, next, the atmosphere is switched into H2 gas atmosphere at the temperature of 1000°C or more and 1100°C or less, when the annealing is performed. An oxygen potential P (H20)/P (H2) is set to be 0.05 to 0.3 when the temperature is 850°C or less during the heating in the mixed gas atmosphere.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
15 July 2011
Publication Number
41/2012
Publication Type
INA
Invention Field
METALLURGY
Status
Email
Parent Application
Patent Number
Legal Status
Grant Date
2017-07-14
Renewal Date
Applicants
NIPPON STEEL CORPORATION
6-1, MARUNOUCHI 2-CHOME, CHIYODA-KU, TOKYO 100-8071, JAPAN
Inventors
1. YOSHIAKI NATORI
C/O NIPPON STEEL CORPORATION, 6-1, MARUNOUCHI 2-CHOME, CHIYODA-KU, TOKYO 100-8071, JAPAN
2. SHUICHI YAMAZAKI
C/O NIPPON STEEL CORPORATION, 6-1, MARUNOUCHI 2-CHOME, CHIYODA-KU, TOKYO 100-8071, JAPAN
3. FUMIAKI TAKAHASHI
C/O NIPPON STEEL CORPORATION, 6-1, MARUNOUCHI 2-CHOME, CHIYODA-KU, TOKYO 100-8071, JAPAN
4. SEIKI TAKEBAYASHI
C/O NIPPON STEEL CORPORATION, 6-1, MARUNOUCHI 2-CHOME, CHIYODA-KU, TOKYO 100-8071, JAPAN
Specification
NA
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 5458-delnp-2011-Form-3-(11-01-2012).pdf | 2012-01-11 |
| 1 | 5458-DELNP-2011-RELEVANT DOCUMENTS [30-08-2023(online)].pdf | 2023-08-30 |
| 2 | 5458-DELNP-2011-RELEVANT DOCUMENTS [24-09-2022(online)].pdf | 2022-09-24 |
| 2 | 5458-delnp-2011-Correspondence-Others-(11-01-2012).pdf | 2012-01-11 |
| 3 | 5458-DELNP-2011-RELEVANT DOCUMENTS [27-07-2021(online)].pdf | 2021-07-27 |
| 3 | 5453-delnp-2010-Correspondence-Others-(06-02-2012).pdf | 2012-02-06 |
| 4 | 5458-DELNP-2011-RELEVANT DOCUMENTS [20-02-2020(online)].pdf | 2020-02-20 |
| 4 | 5458-delnp-2011-GPA.pdf | 2012-03-04 |
| 5 | 5458-delnp-2011-Form-5.pdf | 2012-03-04 |
| 5 | 285211-Correspondence-020719.pdf | 2019-07-08 |
| 6 | 5458-delnp-2011-Form-3.pdf | 2012-03-04 |
| 6 | 285211-OTHERS-020719.pdf | 2019-07-08 |
| 7 | 5458-delnp-2011-Form-2.pdf | 2012-03-04 |
| 7 | 285211-Power of Attorney-020719.pdf | 2019-07-08 |
| 8 | 5458-delnp-2011-Form-18.pdf | 2012-03-04 |
| 8 | 5458-DELNP-2011-FORM 13 [28-06-2019(online)].pdf | 2019-06-28 |
| 9 | 5458-DELNP-2011-RELEVANT DOCUMENTS [28-06-2019(online)].pdf | 2019-06-28 |
| 9 | 5458-delnp-2011-Form-1.pdf | 2012-03-04 |
| 10 | 5458-delnp-2011-Drawings.pdf | 2012-03-04 |
| 10 | 5458-DELNP-2011-RELEVANT DOCUMENTS [22-02-2019(online)].pdf | 2019-02-22 |
| 11 | 5458-delnp-2011-Description (Complete).pdf | 2012-03-04 |
| 11 | 5458-DELNP-2011-RELEVANT DOCUMENTS [17-02-2018(online)].pdf | 2018-02-17 |
| 12 | 5458-delnp-2011-Correspondence-others.pdf | 2012-03-04 |
| 12 | 5458-DELNP-2011-PatentCertificate14-07-2017.pdf | 2017-07-14 |
| 13 | 5458-delnp-2011-Claims.pdf | 2012-03-04 |
| 13 | 5458-DELNP-2011-PatentCertificateCoverLetter.pdf | 2017-07-14 |
| 14 | 5458-delnp-2011-Abstract.pdf | 2012-03-04 |
| 14 | 5458-DELNP-2011-Correspondence-270617-.pdf | 2017-06-29 |
| 15 | 5458-DELNP-2011-Correspondence-270617.pdf | 2017-06-29 |
| 15 | 5458-delnp-2011-GPA-(08-07-2013).pdf | 2013-07-08 |
| 16 | 5458-delnp-2011-Form-2-(08-07-2013).pdf | 2013-07-08 |
| 16 | 5458-DELNP-2011-OTHERS-270617.pdf | 2017-06-29 |
| 17 | 5458-delnp-2011-Form-1-(08-07-2013).pdf | 2013-07-08 |
| 17 | 5458-DELNP-2011-Power of Attorney-270617.pdf | 2017-06-29 |
| 18 | 5458-delnp-2011-Correspondence-Others-(08-07-2013).pdf | 2013-07-08 |
| 18 | Abstract [23-06-2017(online)].pdf | 2017-06-23 |
| 19 | Claims [23-06-2017(online)].pdf | 2017-06-23 |
| 19 | 5458-DELNP-2011-FER.pdf | 2016-12-29 |
| 20 | Correspondence [23-06-2017(online)].pdf | 2017-06-23 |
| 20 | Petition Under Rule 137 [23-06-2017(online)].pdf | 2017-06-23 |
| 21 | Description(Complete) [23-06-2017(online)].pdf | 2017-06-23 |
| 21 | Other Document [23-06-2017(online)].pdf | 2017-06-23 |
| 22 | Description(Complete) [23-06-2017(online)].pdf_219.pdf | 2017-06-23 |
| 22 | Examination Report Reply Recieved [23-06-2017(online)].pdf | 2017-06-23 |
| 23 | Drawing [23-06-2017(online)].pdf | 2017-06-23 |
| 24 | Description(Complete) [23-06-2017(online)].pdf_219.pdf | 2017-06-23 |
| 24 | Examination Report Reply Recieved [23-06-2017(online)].pdf | 2017-06-23 |
| 25 | Other Document [23-06-2017(online)].pdf | 2017-06-23 |
| 25 | Description(Complete) [23-06-2017(online)].pdf | 2017-06-23 |
| 26 | Petition Under Rule 137 [23-06-2017(online)].pdf | 2017-06-23 |
| 26 | Correspondence [23-06-2017(online)].pdf | 2017-06-23 |
| 27 | 5458-DELNP-2011-FER.pdf | 2016-12-29 |
| 27 | Claims [23-06-2017(online)].pdf | 2017-06-23 |
| 28 | 5458-delnp-2011-Correspondence-Others-(08-07-2013).pdf | 2013-07-08 |
| 28 | Abstract [23-06-2017(online)].pdf | 2017-06-23 |
| 29 | 5458-delnp-2011-Form-1-(08-07-2013).pdf | 2013-07-08 |
| 29 | 5458-DELNP-2011-Power of Attorney-270617.pdf | 2017-06-29 |
| 30 | 5458-delnp-2011-Form-2-(08-07-2013).pdf | 2013-07-08 |
| 30 | 5458-DELNP-2011-OTHERS-270617.pdf | 2017-06-29 |
| 31 | 5458-DELNP-2011-Correspondence-270617.pdf | 2017-06-29 |
| 31 | 5458-delnp-2011-GPA-(08-07-2013).pdf | 2013-07-08 |
| 32 | 5458-delnp-2011-Abstract.pdf | 2012-03-04 |
| 32 | 5458-DELNP-2011-Correspondence-270617-.pdf | 2017-06-29 |
| 33 | 5458-delnp-2011-Claims.pdf | 2012-03-04 |
| 33 | 5458-DELNP-2011-PatentCertificateCoverLetter.pdf | 2017-07-14 |
| 34 | 5458-delnp-2011-Correspondence-others.pdf | 2012-03-04 |
| 34 | 5458-DELNP-2011-PatentCertificate14-07-2017.pdf | 2017-07-14 |
| 35 | 5458-delnp-2011-Description (Complete).pdf | 2012-03-04 |
| 35 | 5458-DELNP-2011-RELEVANT DOCUMENTS [17-02-2018(online)].pdf | 2018-02-17 |
| 36 | 5458-delnp-2011-Drawings.pdf | 2012-03-04 |
| 36 | 5458-DELNP-2011-RELEVANT DOCUMENTS [22-02-2019(online)].pdf | 2019-02-22 |
| 37 | 5458-DELNP-2011-RELEVANT DOCUMENTS [28-06-2019(online)].pdf | 2019-06-28 |
| 37 | 5458-delnp-2011-Form-1.pdf | 2012-03-04 |
| 38 | 5458-delnp-2011-Form-18.pdf | 2012-03-04 |
| 38 | 5458-DELNP-2011-FORM 13 [28-06-2019(online)].pdf | 2019-06-28 |
| 39 | 5458-delnp-2011-Form-2.pdf | 2012-03-04 |
| 39 | 285211-Power of Attorney-020719.pdf | 2019-07-08 |
| 40 | 5458-delnp-2011-Form-3.pdf | 2012-03-04 |
| 40 | 285211-OTHERS-020719.pdf | 2019-07-08 |
| 41 | 5458-delnp-2011-Form-5.pdf | 2012-03-04 |
| 41 | 285211-Correspondence-020719.pdf | 2019-07-08 |
| 42 | 5458-DELNP-2011-RELEVANT DOCUMENTS [20-02-2020(online)].pdf | 2020-02-20 |
| 42 | 5458-delnp-2011-GPA.pdf | 2012-03-04 |
| 43 | 5453-delnp-2010-Correspondence-Others-(06-02-2012).pdf | 2012-02-06 |
| 43 | 5458-DELNP-2011-RELEVANT DOCUMENTS [27-07-2021(online)].pdf | 2021-07-27 |
| 44 | 5458-delnp-2011-Correspondence-Others-(11-01-2012).pdf | 2012-01-11 |
| 44 | 5458-DELNP-2011-RELEVANT DOCUMENTS [24-09-2022(online)].pdf | 2022-09-24 |
| 45 | 5458-delnp-2011-Form-3-(11-01-2012).pdf | 2012-01-11 |
| 45 | 5458-DELNP-2011-RELEVANT DOCUMENTS [30-08-2023(online)].pdf | 2023-08-30 |
Search Strategy
| 1 | search5458-DELNP-2011_26-12-2016.pdf |