Patent US3259558A successfully refreshed from Google Patents.
US3259558A
Expired / Lapsed
US
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Method of producing a metal oxide coating
Assignee: Panasonic Holdings Corp
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Filing: 1962-02-12
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Granted: 1966-07-05
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Expires: 1982-02-12
Abstract
No abstract record available.
Inventors
- 👤 Hagiwara Hiroshi
- 👤 Yamashita Akio
- 👤 Matsuda Asao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:33
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/0029; H01G9/0032; C; C23; C23C; C23C26/00; C23C8/00; C23C8/06; C23C8/08; C23C8/10; C23C8/12; C25; C25D; C25D11/00; C25D11/02; C25D11/04; C25D11/18; H01B; H01B1/00; H01B1/06; H01B1/08; H01B3/00; H01B3/002; H01B3/006; H01B3/02; H01B3/10; H01G4/00; H01G4/002; H01G4/018; H01G4/06; H01G4/08; H01G4/10; H10; H10P; H10P95/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A METHOD FOR MAKING ELECTRIC ELEMENTS SUCH AS CAPACITORS AND THE LIKE, COMPRISING SELECTING A METAL OF 99.7% PURITY FROM THE GROUP CONSISTING OF TITANIUM, TANTALUM, AND ZIRCONIUM, SHAPING SAID METAL INTO A WIRE, CLEANING THE SURFACE OF SAID WIRE A DETERGENT, SUBSEQUENTLY INTRODUCING SAID WIRE INTO A GLYCOBORATE SOLUTION AT ORDINARY ROOM TEMPERATURE AND FORMING AN OXIDE FILM ON THE WIRE SURFACE BY SUBJECTING SAID WIRE TO ANODIC OXIDATION, INTRODUCING SAID WIRE WITH SAID OXIDE FILM INTO AIR AND HEARING SAID WIRE TO A MAXIMUM TEMPERATURE OF 1,3000*C. BY PASSING ELECTRIC CURRENT THERETHROUGH, WHEREBY SAID OXIDE FILM GROWS IN THICKNESS AND WHEREIN A UNIFORM OXIDE DISTRIBUTION RESULTS IN SAID OXIDE FILM, AND COATING THE OXIDE WITH A SILVER ELECTRODE TO FORM A CONDENSER.
Claim 2
Independent Claim
124 words
A METHOD FOR MAKING ELECTRIC ELEMENTS SUCH AS CAPACITORS AND THE LIKE, COMPRISING SELECTING A METAL OF 99.7% PURITY FROM THE GROUP CONSISTING OF TITANIUM, TANTALUM, AND ZIRCONIUM, SHAPING SAID METAL INTO A WIRE, CLEANING THE SURFACE OF SAID WIRE A DETERGENT, SUBSEQUENTLY INTRODUCING SAID WIRE INTO A GLYCOBORATE SOLUTION AT ORDINARY ROOM TEMPERATURE AND FORMING AN OXIDE FILM ON THE WIRE SURFACE BY SUBJECTING SAID WIRE TO ANODIC OXIDATION, INTRODUCING SAID WIRE WITH SAID OXIDE FILM INTO AIR AND HEARING SAID WIRE TO A MAXIMUM TEMPERATURE OF 1,3000*C. BY PASSING ELECTRIC CURRENT THERETHROUGH, WHEREBY SAID OXIDE FILM GROWS IN THICKNESS AND WHEREIN A UNIFORM OXIDE DISTRIBUTION RESULTS IN SAID OXIDE FILM, AND COATING THE OXIDE WITH A SILVER ELECTRODE TO FORM A CONDENSER.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |