This is a continuation of copending application Ser. No. 07/593,944 filed on Oct. 9, 1990, now abandoned.
The United States Government has rights in this invention pursuant to the Contract No. W-7405-ENG-82 between the U.S. Department of Energy and Iowa State University, Ames, Iowa, which contract grants to Iowa State University Research Foundation, Inc. the right to apply for this patent. The research leading to the invention was supported in part by U.S. Department of Commerce Grant ITA 87-02.
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---|---|---|---|
3663317 | Westendorp et al. | May 1972 | |
3904448 | Takahashi et al. | Sep 1975 | |
4104787 | Jandeska et al. | Aug 1978 | |
4290826 | Clegg | Sep 1981 | |
4402770 | Koon | Sep 1983 | |
4533408 | Koon | Aug 1985 | |
4585473 | Narasimhan et al. | Apr 1986 | |
4597938 | Matsuura et al. | Jul 1986 | |
4601875 | Yamamoto et al. | Jul 1986 | |
4619845 | Ayers et al. | Oct 1987 | |
4636353 | Seon et al. | Jan 1987 | |
4664724 | Mizoguchi et al. | May 1987 | |
4770723 | Sagawa et al. | Sep 1988 | |
4801340 | Inoue et al. | Jan 1989 | |
4802931 | Croat | Feb 1989 | |
4834812 | Ghandehari | May 1989 | |
4867809 | Haverstick | Sep 1989 | |
4911882 | Greenwald | Mar 1990 |
Number | Date | Country |
---|---|---|
63-100108 | May 1988 | JPX |
63-109101 | May 1988 | JPX |
63-211706 | Sep 1988 | JPX |
Entry |
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Iron-Based Rare-Earth Magnets, J. J. Croat, Chairperson, J. Appl. Phys., 1985. |
Nd--Fe--B Permanent Magnet Materials, Japanese Journal of Applied Science, 1987, Masato Sagawa et al. |
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Number | Date | Country | |
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Parent | 593944 | Oct 1990 |