US3348056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wavelength converting type radiant energy responsive display device
Assignee: Panasonic Holdings Corp
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Filing: 1964-05-20
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Granted: 1967-10-17
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Expires: 1984-05-20
Abstract
No abstract record available.
Inventors
- 👤 Kohashi Tadao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:38
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; H05B33/26; H05B33/22; H10; H10F; H10F55/00; H10F55/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A RADIANT ENERGY RESPONSIVE DISPLAY DEVICE OF THE TYPE INCLUDING A PHOTOCONDUCTIVE LAYER, AN ELECTROLUMINESCENT LAYER LYING ON ONE SURFACE OF SAID PHOTOCONDUCTIVE LAYER, AN IMPEDANCE LAYER LYING ON THE OTHER SURFACE OF SAID PHOTOCONDUCTIVE LAYER, A FIRST ELECTRODE ARRANGED ON THE OUTER SURFACE OF SAID ELECTROLUMINESCENT LAYER, A SECOND ELECTRODE ARRANGED ON THE OUTER SURFACE OF SAID IMPEDANCE LAYER, A THIRD ELECRODE INTERPOSED BETWEEN SAID ELECTROLUMINESCENT AND IMPEDANCE LAYERS IN ELECTRICAL CONTACT WITH SAID PHOTOCONDUCTIVE LAYER, ELECTRIC POWER SUPPLY MEANS FOR APPLYING A FIRST VOLTAGE BETWEEN SAID FIRST AND THIRD ELECTRODES AND SECOND VOLTAGE BETWEEN SAID FIRST AND SECOND ELECTRODES, AN MEANS FOR ELECTRICALLY CONTROLLING THE LUMINESCENT INTENSITY OF SAID ELECTROLUMINESCENT LAYER THROUGH THE VARIATION IN IMPEDANCE UNDER THE EXCITATION EFFECT OF RADIANT ENERGY ON SAID PHOTOCON-
Claim 2
Dependent Claim
128 words
A RADIANT ENERGY RESPONSIVE DISPLAY DEVICE OF THE TYPE INCLUDING A PHOTOCONDUCTIVE LAYER, AN ELECTROLUMINESCENT LAYER LYING ON ONE SURFACE OF SAID PHOTOCONDUCTIVE LAYER, AN IMPEDANCE LAYER LYING ON THE OTHER SURFACE OF SAID PHOTOCONDUCTIVE LAYER, A FIRST ELECTRODE ARRANGED ON THE OUTER SURFACE OF SAID ELECTROLUMINESCENT LAYER, A SECOND ELECTRODE ARRANGED ON THE OUTER SURFACE OF SAID IMPEDANCE LAYER, A THIRD ELECRODE INTERPOSED BETWEEN SAID ELECTROLUMINESCENT AND IMPEDANCE LAYERS IN ELECTRICAL CONTACT WITH SAID PHOTOCONDUCTIVE LAYER, ELECTRIC POWER SUPPLY MEANS FOR APPLYING A FIRST VOLTAGE BETWEEN SAID FIRST AND THIRD ELECTRODES AND SECOND VOLTAGE BETWEEN SAID FIRST AND SECOND ELECTRODES, AN MEANS FOR ELECTRICALLY CONTROLLING THE LUMINESCENT INTENSITY OF SAID ELECTROLUMINESCENT LAYER THROUGH THE VARIATION IN IMPEDANCE UNDER THE EXCITATION EFFECT OF RADIANT ENERGY ON SAID PHOTOCON-
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-16 | 1971-04-17 | 1971-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-16 | 1975-04-17 | 1975-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-16 | 1979-04-17 | 1979-10-17 | $7700.00 | Window Closed / Lapsed |