US3407126A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrodeposition of magnetic thin films
Assignee: International Business Machines Corp
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Filing: 1965-12-23
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Granted: 1968-10-22
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Expires: 1985-12-23
Abstract
No abstract record available.
Inventors
- 👤 Koretzky Herman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:25
CPC Classifications
H; H01; H01F; H01F10/00; H01F10/08; H01F10/10; H01F10/12; H01F10/14; C; C25; C25D; C25D3/00; C25D3/02; C25D3/56; C25D3/562; H01F41/00; H01F41/14; H01F41/24; H01F41/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A METHOD OF ELECTRODEPOSITING A MAGNETIC THIN FILM ON A SURFACE, COMPRISING THE STEPS OF: IMMERSING THE SURFACE AS A CATHODE IN AN AQUEOUS ELECTROLYTE COMPRISING FROM ABOUT 40 TO 115 GRAMS PER LITER OF NICKEL AS THE NICKEL ION, FROM ABOUT 0.2 TO 2 GRAMS PER LITER OF IRON AS THE IRON ION, UP TO ABOUT 6 GRAMS PER LITER OF COBALT AS THE COBALT ION, UP TO 0.2 GRAMS PER LITER OF PALLADIUM AS THE PALLADIUM ION, AND AN AMOUNT UP TO ABOUT 100 GRAMS PER LITER OF THICKENING AGENT; MAINTAINING THE PH OF SAID ELECTROLYTE IN THE RANGE OF ABOUT 2.4 TO 3.0, AND, IMPRESSING A VOLTAGE IN SAID ELECTROLYTE BETWEEN SAID CATHODE AND A SECOND ELECTRODE, THE ANODE, TO EFFECTUATE THE ELECTRODEPOSTION OF THE MAGNETIC FILM FILM ON SAID SURFACE.
Claim 2
Independent Claim
134 words
A METHOD OF ELECTRODEPOSITING A MAGNETIC THIN FILM ON A SURFACE, COMPRISING THE STEPS OF: IMMERSING THE SURFACE AS A CATHODE IN AN AQUEOUS ELECTROLYTE COMPRISING FROM ABOUT 40 TO 115 GRAMS PER LITER OF NICKEL AS THE NICKEL ION, FROM ABOUT 0.2 TO 2 GRAMS PER LITER OF IRON AS THE IRON ION, UP TO ABOUT 6 GRAMS PER LITER OF COBALT AS THE COBALT ION, UP TO 0.2 GRAMS PER LITER OF PALLADIUM AS THE PALLADIUM ION, AND AN AMOUNT UP TO ABOUT 100 GRAMS PER LITER OF THICKENING AGENT; MAINTAINING THE PH OF SAID ELECTROLYTE IN THE RANGE OF ABOUT 2.4 TO 3.0, AND, IMPRESSING A VOLTAGE IN SAID ELECTROLYTE BETWEEN SAID CATHODE AND A SECOND ELECTRODE, THE ANODE, TO EFFECTUATE THE ELECTRODEPOSTION OF THE MAGNETIC FILM FILM ON SAID SURFACE.
References Cited (Backward Citations)
US3272727A
Cited
US3297418A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-22 | 1972-04-22 | 1972-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-22 | 1976-04-22 | 1976-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-22 | 1980-04-22 | 1980-10-22 | $7700.00 | Window Closed / Lapsed |