Magnetic material
Abstract
Abstract A MAGNETIC MATERIAL OF HIGH RETENIVE CAPACITY CONSISTING ESSENTIALLY OF 40 TO 60 ATOMIC PERCENT PLATINUM WITH GOOD RESULTS, WHEN THE PT PROPORTION IS 45 TO 55 ATOMIC PERCENT BALANCE COBALT (PREFERABLY 50 ATOMIC PERCENT $1 ATOMIC PERCENT PLATINUM AND 50 ATOMIC PERCENT $1 ATOMIC PERCENT COBALT), CONSTITUTING A PLATINUM/ COBALT COMPONENT AND PRESENT AS THE BALANCE OF THE MAGNETIC MATERIAL WITH BETWEEN 4 AND 15 ATOMIC PERCENT IRON ALONE OR WITH UP TO 5 ATOMIC PERCENT NICKEL (PREFERABLY ABOVE 0.1 ATOMIC PERCENT), THE LATTER BEING PRESENT WITH OR WITHOUT COPPER IN AN AMOUNT UP TO 5 ATOMIC PERCENT COPPER (PREFERABLY AT LEAST 0.01 ATOMIC PERCENT) IN THE MAGNETIC ALLOY. THE COBALT PROPORTION IS IN EXCESS OF THE IRON (IN TERMS OF ATOMIC PERCENT).
Inventors
- 👤 Kiyoshi Inoue
- 👤 Hideo Kaneko
Bibliographic Details
Claims Analysis
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1975-09-05 | 1976-03-06 | 1976-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-05 | 1980-03-06 | 1980-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-05 | 1984-03-06 | 1984-09-05 | $7700.00 | Window Closed / Lapsed |