US5079049A
Expired / Lapsed
US
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Artificial plant that stably exhibits different colors
Assignee: Pilot Ink Co Ltd
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Filing: 1990-10-03
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Granted: 1992-01-07
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Expires: 2010-10-03
Abstract
Abstract An artificial plant having at least one section which bears a color memory dye of an electron-supplying organic coloring compound, an electron accepting compound an an ester. The color memory dye assumes a first color below t1 (° C.) and a second color above t2 (° C.), wherein t2>t1, 0≦t1, t2≦50° C. and 5≦t2-t1≦35. Both the first and second colors can be displayed between t1 and t2.
Inventors
- 👤 Tsutomu Kito
- 👤 Norikazu Nakasuji
- 👤 Hiroshi Inagaki
- 👤 Yutaka Shibahashi
- 👤 Takashi Kataoka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:40
CPC Classifications
B; B44; B44F; B44F1/00; B44F1/08; B44F1/10; A; A41; A41G; A41G1/00; B44C; B44C5/00; B44C5/06; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249994; Y10T428/249995; Y10T428/249997
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
80 words
An artificial plant, at least one section thereof bearing a color memory dye having a hysteresis characteristic, said color memory dye comprising an electron-supplying organic coloring compound, an electron accepting compound and an ester for causing the hysteresis characteristic, and said color memory dye assuming a first color below t1 (°C.) and a second color above t2 (°C.), wherein t2>t1, 0≦t1, t2≦50° C. and 5≦t2-t1≦35, both of said first and second colors capable of being displayed between t1 and t2.
Claim 2
Dependent Claim
80 words
An artificial plant, at least one section thereof bearing a color memory dye having a hysteresis characteristic, said color memory dye comprising an electron-supplying organic coloring compound, an electron accepting compound and an ester for causing the hysteresis characteristic, and said color memory dye assuming a first color below t1 (°C.) and a second color above t2 (°C.), wherein t2>t1, 0≦t1, t2≦50° C. and 5≦t2-t1≦35, both of said first and second colors capable of being displayed between t1 and t2.
Claim 3
Dependent Claim
8 words
The artificial plant of claim 1, wherein 5≦t1≦23.
Claim 4
Dependent Claim
10 words
The artificial plant of claims 1 or 2, wherein 25≦t2≦40.
Claim 5
Dependent Claim
16 words
The artificial plant of claim 3, wherein the color memory dye is dispersed in a binder.
Claim 6
Dependent Claim
14 words
The artificial plant of claim 4, wherein the dispersed color memory dye is microencapsulated.
Claim 7
Dependent Claim
22 words
The artificial plant of claim 5, wherein the color memory dye microcapsule have a particle size of from 0.5 to 50 μm.
Claim 8
Dependent Claim
22 words
The artificial plant of claim 6, wherein the color memory dye microcapsule contain from 0.1 to 40 weight % color memory dye.
Claim 9
Dependent Claim
22 words
The artificial plant of claim 7, wherein the color memory dye microcapsule have a particle size of from 1 to 30 μm.
Claim 10
Dependent Claim
22 words
The artificial plant of claim 8, wherein the color memory dye microcapsule contain from 0.2 to 25 weight % color memory dye.
Claim 11
Dependent Claim
23 words
The artificial plant of claim 5, wherein the color memory dye is dispersed in the binder at from 10 to 60 weight %.
Claim 12
Dependent Claim
23 words
The artificial plant of claim 4, wherein the color memory dye is dispersed in the binder at from 5 to 80 weight %.
Claim 13
Dependent Claim
31 words
The artificial plant of claim 4, wherein said section of artificial plant bearing said color memory dye is coated with a color memory dye layer of at least 0.5 μm thickness.
Claim 14
Dependent Claim
32 words
The artificial plant of claim 12, wherein said section of artificial plant bearing said color memory dye is coated with a color memory dye layer of from 1 to 400 μm thickness.
Claim 15
Dependent Claim
32 words
The artificial plant of claim 13, wherein said section of artificial plant bearing said color memory dye is coated with a color memory dye layer of from 10 to 200 μm thickness.
Claim 16
Dependent Claim
18 words
The artificial plant of claim 12, wherein said color memory dye layer is coated with a transparent resin.
Claim 17
Dependent Claim
15 words
The artificial plant of claim 15, wherein said transparent resin contains an ultraviolet light-absorbing agent.
Claim 18
Dependent Claim
30 words
The artificial plant of claim 3, wherein said section of artificial plant bearing said color memory dye is a thermoplastic material and a pigment is admixed into said thermoplastic material.
Claim 19
Dependent Claim
13 words
The artificial plant of claim 17, wherein said color memory dye is microencapsulated.
Claim 20
Dependent Claim
22 words
The artificial plant of claim 3, wherein said artificial plant comprises a second color memory dye which assumes third and fourth colors.
Claim 21
Dependent Claim
18 words
The artificial plant of claim 19, wherein one of said first, second, third or fourth colors is clear.
Claim 22
Dependent Claim
16 words
The artificial plant of claim 1, wherein one of said first and second colors is clear.
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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) | 1995-01-06 | 1995-07-08 | 1996-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-01-06 | 1999-07-08 | 2000-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-01-06 | 2003-07-08 | 2004-01-07 | $7700.00 | Window Closed / Lapsed |