US4265994A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure fixable capsule toner
Assignee: Canon Inc
•
Filing: 1979-07-18
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Granted: 1981-05-05
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Expires: 1999-07-18
Abstract
Abstract A pressure fixable capsule toner comprises a core material containing a pressure fixable component and an outer shell layer covering the core material and containing a cyclized rubber.
Inventors
- 👤 Tetsuo Hasegawa
- 👤 Shigeo Kato
- 👤 Takeshi Miyashita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:03
CPC Classifications
G; G03; G03G; G03G9/00; G03G9/08; G03G9/093; G03G9/09307; G03G9/09314; G03G9/09321; G03G9/0935; G03G9/09357; G03G9/09364; G03G9/09371
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
39 words
A pressure fixable capsule toner which comprises a core material containing a pressure fixable component and an outer shell layer of 0.1-8 microns containing at least 40% by weight of a cyclized rubber having a molecular weight from 5,000-20,000.
Claim 2
Dependent Claim
39 words
A pressure fixable capsule toner which comprises a core material containing a pressure fixable component and an outer shell layer of 0.1-8 microns containing at least 40% by weight of a cyclized rubber having a molecular weight from 5,000-20,000.
Claim 3
Dependent Claim
17 words
A pressure fixable capsule toner according to claim 1 in which the pressure fixable component is polyolefine.
Claim 4
Dependent Claim
18 words
A pressure fixable capsule toner according to claim 1, in which the pressure fixable component is polyethylene oxide.
Claim 5
Dependent Claim
15 words
A pressure fixable capsule toner according to claim 1 in which magnetic powders are contained.
Claim 6
Dependent Claim
16 words
A pressure fixable capsule toner according to claim 1 in which a coloring agent is contained.
Claim 7
Dependent Claim
17 words
A pressure fixable capsule toner according to claim 1 in which a charge controlling agent is contained.
Claim 8
Dependent Claim
15 words
A pressure fixable capsule toner according to claim 1 in which a lubricant is contained.
Claim 9
Dependent Claim
24 words
A pressure fixable capsule toner according to claim 1 in which an insulating resin layer overlies the outer shell layer containing a cyclized rubber.
Claim 10
Dependent Claim
20 words
A pressure fixable capsule toner according to claim 1 in which the iodine value of the cyclized rubber is 40-200.
Claim 11
Dependent Claim
34 words
A pressure fixable capsule toner which comprises a core material containing polyolefine and magnetic powders and an outer shell layer of 0.1-8 μm in thickness covering the core material and containing a cyclized rubber.
Claim 12
Dependent Claim
34 words
A pressure fixable capsule toner which comprises a core material containing polyolefine and magnetic powders and an outer shell layer of 0.1-8 μm in thickness covering the core material and containing a cyclized rubber.
Claim 13
Dependent Claim
38 words
A pressure fixable capsule toner which comprises a core material containing polyolefine and magnetic powders, an outer shell layer covering the core material and containing a cyclized rubber, and an insulating resin layer overlying the outer shell layer.
Claim 14
Dependent Claim
38 words
A pressure fixable capsule toner which comprises a core material containing polyolefine and magnetic powders, an outer shell layer covering the core material and containing a cyclized rubber, and an insulating resin layer overlying the outer shell layer.
Claim 15
Dependent Claim
33 words
A pressure fixable capsule toner which comprises a core material containing polyolefine and magnetic powders, and an outer shell layer covering the core material and containing a cyclized rubber and a styrene-butadiene copolymer.
Claim 16
Dependent Claim
33 words
A pressure fixable capsule toner which comprises a core material containing polyolefine and magnetic powders, and an outer shell layer covering the core material and containing a cyclized rubber and a styrene-butadiene copolymer.
References Cited (Backward Citations)
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GB1210665A
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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) | 1984-05-04 | 1984-11-03 | 1985-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-05-04 | 1988-11-03 | 1989-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-05-04 | 1992-11-03 | 1993-05-05 | $7700.00 | Window Closed / Lapsed |