C21D 1/54
Determining when the hardening temperature has been reached by measurement of magnetic
Official title: Determining when the hardening temperature has been reached by measurement of magnetic or electrical properties
C21D1/54 (Determining when the hardening temperature has been reached by measurement of magnetic) appears on 12 US grants and 9 published applications in this corpus.
Search patents in C21D- Granted patents
- 12
- Published applications
- 9
- Assignees
- 15
- Inventors
- 44
- Latest grant
- 19 May 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 2 | 0 |
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| 2001 | 0 | 0 |
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| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
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| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 0 | 1 |
| 2011 | 1 | 2 |
| 2012 | 1 | 0 |
| 2013 | 1 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 2 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Determining the ferrite phase fraction after heating or cooling of a steel strip19 May 2020US 10,655,197 B2Primetals Technologies Austria GmbH
- Vertical multi-batch magnetic annealing systems for reduced footprint manufacturing environments19 Jun 2018US 10,003,018 B1Tokyo Electron Limited
- Thermomechanical methodology for stabilizing shape memory alloy (SMA) response25 Oct 2016US 9,476,113 B1The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
- Thermomechanical methodology for stabilizing shape memory alloy (SMA) response1 Mar 2016US 9,273,369 B1The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
- Evaluation method of residual stress in water jet peening and method of executing water jet peening15 Jul 2014US 8,776,565 B2Hitachi, Ltd.
- Electrical heating device, forming device, and electrical heating method19 Sep 2024US 2024/0314892 A1Sumitomo Heavy Industries, Ltd.
- Determining the ferrite phase fraction after heating or cooling of a steel strip17 Mar 2016US 2016/0076119 A1Primetals Technologies Austria GmbH
- Method and device for testing treatments which introduce energy into objects26 Sep 2013US 2013/0252340 A1Fraunhofer-Gesellschaft zur Forderung der angewand ten Forschung e.V.
- Evaluation method of residual stress in water jet peening and method of executing water jet peening29 Sep 2011US 2011/0232348 A1Hitachi, Ltd.
- Device for heating rod-type work pieces14 Jul 2011US 2011/0171590 A1I.A.S. Induktions-Anlagen + Service GmbH & Co. KG.
Most cited
By later US patents
- Tool steel production method18US 5,458,703 ANippon Koshuha Steel Co., Ltd. · 1995
- Method of heat treating using eddy current temperature determination10US 4,675,057 ATocco, Inc. · 1987
- Method of controlling cooling of hot-rolled steel sheet and system therefor3US 4,648,916 AKawasaki Steel Corporation · 1987
- Vertical multi-batch magnetic annealing systems for reduced footprint manufacturing environments2US 10,003,018 B1Tokyo Electron Limited · 2018
- Thermomagnetic apparatus for determining optimum heat treatment of alloys1US 5,597,527 AThe United States of America as represented by the Secretary of the Army · 1997