Patent US4954937A successfully refreshed from Google Patents.
US4954937A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lighting lamp
Assignee: Hitachi Ltd
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Filing: 1989-09-08
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Granted: 1990-09-04
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Expires: 2009-09-08
Abstract
Abstract A lighting lamp is disclosed, comprising a lamp having laminated on the surface of a bulb thereof a display sheet, said display sheet comprising a support having thereon an active layer containing a pigment which is faded by the action of an active light and an active light-adjusting layer.
Inventors
- 👤 Yasuo Kobayashi
- 👤 Naoki Hagiwara
- 👤 Taisuke Hirota
- 👤 Churyo Kodama
- 👤 Yasuo Hirasawa
- 👤 Katsumi Miyazaki
- 👤 Fumio Kawamura
- 👤 Takao Higashi
- 👤 Masami Yanagisawa
- 👤 Akinori Sei
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:05
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/02; H01J61/30; H01J61/35
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
47 words
A lighting lamp comprising a lamp having laminated on the surface of a bulb thereof a display sheet, said display sheet comprising a support having thereon an active layer containing a pigment which is faded by the action of an active light and an active light-adjusting layer.
Claim 2
Dependent Claim
47 words
A lighting lamp comprising a lamp having laminated on the surface of a bulb thereof a display sheet, said display sheet comprising a support having thereon an active layer containing a pigment which is faded by the action of an active light and an active light-adjusting layer.
Claim 3
Dependent Claim
22 words
A lighting lamp as in claim 1, wherein said active layer is located closer to the bulb than said active light-adjusting layer.
Claim 4
Dependent Claim
22 words
A lighting lamp as in claim 1, wherein said active light-adjusting layer is located closer to the bulb than said active layer.
Claim 5
Dependent Claim
38 words
A lighting lamp as in claim 2, wherein said active layer is laminated on the surface of the bulb through an adhesive layer such that at least the display portion of said active layer is exposed to air.
Claim 6
Dependent Claim
40 words
A lighting lamp as in claim 3, wherein said active light-adjusting layer is laminated on the surface of the bulb through an adhesive layer such that at least the display portion of said active light-adjusting layer is exposed to air.
Claim 7
Dependent Claim
17 words
A lighting lamp as in claim 1, wherein said active light-adjusting layer also functions as the support.
Claim 8
Dependent Claim
17 words
A lighting lamp as in claim 2, wherein said active light-adjusting layer also functions as the support.
Claim 9
Dependent Claim
17 words
A lighting lamp as in claim 3, wherein said active light-adjusting layer also functions as the support.
Claim 10
Dependent Claim
17 words
A lighting lamp as in claim 4, wherein said active light-adjusting layer also functions as the support.
Claim 11
Dependent Claim
17 words
A lighting lamp as in claim 5, wherein said active light-adjusting layer also functions as the support.
Claim 12
Dependent Claim
42 words
A lighting lamp as in claim 1, wherein said pigment which is faded by the action of an active light is a monoazo pigment, a disazo pigment, a diphenylmethane pigment, a triphenylmethane pigment, a quinone pigment, or a metal complex salt pigment.
Claim 13
Dependent Claim
25 words
A lighting lamp as in claim 1, wherein said active light-adjusting layer is a layer containing a composition which is absorptive to the active light.
Claim 14
Dependent Claim
75 words
A lighting lamp as in claim 4, wherein said adhesive layer is formed by applying a coating solution containing at least one adhesive selected from a natural rubber adhesive, an SBR adhesive, an acrylic adhesive, a butyl rubber adhesive, a thermoplastic elastomer adhesive, a silicone adhesive, a vinyl acetate adhesive, a vinyl chloride adhesive, an epoxy adhesive, a polyamide adhesive, an EVA adhesive, a urethane adhesive, a denatured acrylic adhesive, and an acrylate-vinyl acetate adhesive.
Claim 15
Dependent Claim
75 words
A lighting lamp as in claim 5, wherein said adhesive layer is formed by applying a coating solution containing at least one adhesive selected from a natural rubber adhesive, an SBR adhesive, an acrylic adhesive, a butyl rubber adhesive, a thermoplastic elastomer adhesive, a silicone adhesive, a vinyl acetate adhesive, a vinyl chloride adhesive, an epoxy adhesive, a polyamide adhesive, an EVA adhesive, a urethane adhesive, a denatured acrylic adhesive, and an acrylate-vinyl acetate adhesive.
References Cited (Backward Citations)
JPS62133366A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-09-03 | 1994-03-05 | 1994-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-09-03 | 1998-03-05 | 1998-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-09-03 | 2002-03-05 | 2002-09-04 | $7700.00 | Window Closed / Lapsed |