US5085607A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toy that stably exhibits different colors with indicator for proper temperature application
Assignee: Pilot Ink Co Ltd
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Filing: 1990-10-12
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Granted: 1992-02-04
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Expires: 2010-10-12
Abstract
Abstract An toy set having at least one section which bears a color memory dye of an electron-supplying organic coloring compound, an electron accepting compound and 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. For the purpose of determining the proper temperature range for a color characteristic, temperature-sensitive visual indicators are provided.
Inventors
- 👤 Yutaka Shibahashi
- 👤 Tsutomu Kito
- 👤 Norikazu Nakasuji
- 👤 Hiroshi Inagaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:16
CPC Classifications
A; A63; A63H; A63H33/00; A63H33/22; A63F; A63F2250/00; A63F2250/10; A63F2250/1026; A63F2250/1031; Y; Y10; Y10S; Y10S428/00; Y10S428/913
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
120 words
A toy at least one section thereof bearing a color memory dye comprising an electron-supplying organic coloring compound, an electron accepting compound and an ester; 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; and a temperature sensitive visual indicator, said temperature sensitive visual indicator being visible when at least one of said first and second colors is displayed and said temperature sensitive visual indicator operating to communicate written or pictoral information, said written or pictoral information conveying how to display the other of said first or second colors.
Claim 2
Dependent Claim
120 words
A toy at least one section thereof bearing a color memory dye comprising an electron-supplying organic coloring compound, an electron accepting compound and an ester; 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; and a temperature sensitive visual indicator, said temperature sensitive visual indicator being visible when at least one of said first and second colors is displayed and said temperature sensitive visual indicator operating to communicate written or pictoral information, said written or pictoral information conveying how to display the other of said first or second colors.
Claim 3
Dependent Claim
7 words
The toy of claim 1, wherein 5≦t1≦23.
Claim 4
Dependent Claim
9 words
The toy of claims 1 or 2, wherein 24≦t2≦40.
Claim 5
Dependent Claim
16 words
The toy of claim 3, wherein the color memory dye is dispersed in a binder medium.
Claim 6
Dependent Claim
13 words
The toy of claim 4, wherein the dispersed color memory dye is microencapsulated.
Claim 7
Dependent Claim
21 words
The toy of claim 5, wherein the color memory dye microcapsules have a particle size of from 0.5 to 50 μm.
Claim 8
Dependent Claim
21 words
The toy of claim 6, wherein the color memory dye microcapsules contain from 0.1 to 40 weight % color memory dye.
Claim 9
Dependent Claim
21 words
The toy of claim 7, wherein the color memory dye microcapsules have a particle size of from 1 to 30 μm.
Claim 10
Dependent Claim
21 words
The toy of claim 8, wherein the color memory dye microcapsules contain from 0.2 to 25 weight % color memory dye.
Claim 11
Dependent Claim
22 words
The toy of claim 4, wherein the color memory dye is dispersed in the binder at from 5 to 80 weight %.
Claim 12
Dependent Claim
22 words
The toy of claim 5, wherein the color memory dye is dispersed in the binder at from 10 to 60 weight %.
Claim 13
Dependent Claim
29 words
The toy of claim 4, wherein said section of toy bearing said color memory dye is coated with a color memory dye layer of at least 0.5 μm thickness.
Claim 14
Dependent Claim
30 words
The toy of claim 12, wherein said section of toy bearing said color memory dye is coated with a color memory dye layer of from 1 to 400 μm thickness.
Claim 15
Dependent Claim
30 words
The toy of claim 13, wherein said section of toy bearing said color memory dye is coated with a color memory dye layer of from 10 to 200 μm thickness.
Claim 16
Dependent Claim
27 words
The toy of claim 3, wherein said section of toy bearing said color memory dye is a thermoplastic material and a pigment is admixed into thermoplastic material.
Claim 17
Dependent Claim
12 words
The toy of claim 15, wherein said color memory dye is microencapsulated.
Claim 18
Dependent Claim
15 words
The toy of claim 16, wherein one of said first and second colors is clear.
Claim 19
Dependent Claim
20 words
The toy of claim 3, wherein said toy comprises a second color memory dye which assumes third and fourth colors.
Claim 20
Dependent Claim
17 words
The toy of claim 18, wherein one of said first, second, third or fourth colors is clear.
Claim 21
Dependent Claim
14 words
The toy of claim 4, wherein the binder medium is a thermoplastic plastics material.
Claim 22
Dependent Claim
22 words
The toy of claim 20, wherein the toy was make by melting and molding the material mixed with microencapsulated color memory dye.
Claim 23
Dependent Claim
21 words
The toy of claim 21, wherein the color memory dye microcapsules have a particle size of from 0.5 to 50 μm.
Claim 24
Dependent Claim
15 words
The toy of claim 1, wherein said temperature sensitive indicator includes a reversible thermochromatic layer.
Claim 25
Dependent Claim
15 words
The toy of claim 23, wherein said reversible thermochromatic layer comprises a reversible thermochromatic material.
Claim 26
Dependent Claim
16 words
The toy of claim 24, wherein said reversible thermochromatic material comprises a second color memory dye.
Claim 27
Dependent Claim
40 words
The toy of claim 25, wherein said second color memory dye comprises an electron-supplying coloring organic compound, a developer for this compound, and a color changing-temperature adjusting material for determining the temperature of color-changing reaction of the above two components.
Claim 28
Dependent Claim
44 words
The toy of claim 25, wherein said second color memory dye assumes a first color below t1 (°C.) and a second color above t2 (°C.), wherein t2>t1, and 5≦t2-t1≦35, both of said first and second colors capable of being displayed between t1 and t2.
Claim 29
Dependent Claim
23 words
The toy of claim 25, wherein said reversible thermochromatic material comprises a reversible thermochromatic pigment in the form of a resin solid solution.
Claim 30
Dependent Claim
15 words
The toy of claim 25, wherein said reversible thermochromatic material is an ink or paint.
Claim 31
Dependent Claim
19 words
The toy of claims 28 or 29, wherein said reversible thermochromatic material forms a thermochromatic layer on a substrate.
Claim 32
Dependent Claim
13 words
The toy of claim 30, wherein said substrate is made of thermoplastic resin.
Claim 33
Dependent Claim
12 words
The toy of claim 30, wherein said thermochromatic layer comprises a sheet.
References Cited (Backward Citations)
US1592148A
Cited
US4028118A
Cited
US4176273A
Cited
US4554565A
Cited
US4720301A
Cited
US4725462A
Cited
US4818215A
Cited
GB2205255A
Cited
US4917643A
Cited
US4920991A
Cited
US4820683A
Cited
US4895827A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-02-03 | 1995-08-05 | 1996-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-02-03 | 1999-08-05 | 2000-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-02-03 | 2003-08-05 | 2004-02-04 | $7700.00 | Window Closed / Lapsed |