US4871601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical information recording carrier
Assignee: Canon Inc
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Filing: 1988-02-22
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Granted: 1989-10-03
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Expires: 2008-02-22
Abstract
Abstract An optical information recording carrier comprises an optical recording layer provided on a transparent substrate, a film coating layer laminated with out adhesion on said optical recording layer, and further a fixing layer laminated thereon to fix said film coating layer.
Inventors
- 👤 Kyo Miura
- 👤 Hiroyuki Sugata
- 👤 Yoshihiro Oguchi
- 👤 Hitoshi Yoshino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:02
CPC Classifications
G; G11; G11B; G11B7/00; G11B7/24; G11B7/241; G11B7/252; G11B7/257; G11B7/2572; G11B7/2575; G11B7/002; G11B7/0033; G11B7/242; G11B7/244; G11B7/246; G11B7/2463; G11B7/247; G11B7/253; G11B7/2533; G11B7/2534; G11B7/254; G11B7/2542; G11B7/256; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S430/00; Y10S430/146; Y10T; Y10T428/00; Y10T428/23; Y10T428/24; Y10T428/24479; Y10T428/24521; Y10T428/24612; Y10T428/26; Y10T428/261; Y10T428/263; Y10T428/264; Y10T428/28; Y10T428/31504; Y10T428/31507; Y10T428/31511; Y10T428/31515; Y10T428/31786
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
48 words
A closely contacted encapsulation optical information recording carrier comprising an optical recording layer provided on a transparent substrate, film coating layer laminated without adhesion to provide a microscopic space layer on said optical recording layer, and further a fixing layer laminated thereon to fix said film coating layer.
Claim 2
Dependent Claim
48 words
A closely contacted encapsulation optical information recording carrier comprising an optical recording layer provided on a transparent substrate, film coating layer laminated without adhesion to provide a microscopic space layer on said optical recording layer, and further a fixing layer laminated thereon to fix said film coating layer.
Claim 3
Dependent Claim
27 words
An optical information recording carrier according to claim 1, wherein recording on said information recording carrier is effected by formation of a pit by change in shape.
Claim 4
Dependent Claim
17 words
An optical information recording carrier according to claim 1, wherein said transparent substrate has a track groove.
Claim 5
Dependent Claim
29 words
An optical information recording carrier according to claim 3, wherein said track groove is an optically cured transferred product of a photopolymerizable resin composition laminated on said transparent substrate.
Claim 6
Dependent Claim
19 words
An optical information recording carrier according to claim 1, wherein said optical recording layer comprises an organic dye film.
Claim 7
Dependent Claim
20 words
An optical information recording carrier according to claim 1, wherein said film coating layer is composed of a thermoplastic resin.
Claim 8
Dependent Claim
17 words
An optical information recording carrier according to claim 6, wherein said thermoplastic resin is a polyester resin.
Claim 9
Dependent Claim
15 words
An optical information recording carrier according to claim 7, wherein said polyester resin is polyethyleneterephthalate.
Claim 10
Dependent Claim
23 words
An optical information recording carrier according to claim 1, wherein said film coating layer has a thickness of 0.05 μm to 100 μm.
Claim 11
Dependent Claim
23 words
An optical information recording carrier according to claim 9, wherein said film coating layer has a thickness of 0.1 μm to 50 μm.
Claim 12
Dependent Claim
21 words
An optical information recording carrier according to claim 1, wherein said film coating layer is laminated only in the recording region.
Claim 13
Dependent Claim
22 words
An optical information recording carrier according to claim 1, wherein said optical recording information recording carrier is in shape of a card.
Claim 14
Dependent Claim
32 words
An optical information recording carrier according to claim 12, wherein said optical recording information recording carrier is in shape of a card and no recording region is provided at both ends thereof.
Claim 15
Dependent Claim
17 words
An optical information recording carrier according to claim 1, wherein said fixing layer is an adhesive layer.
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) | 1992-10-02 | 1993-04-03 | 1993-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-02 | 1997-04-03 | 1997-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-02 | 2001-04-03 | 2001-10-03 | $7700.00 | Window Closed / Lapsed |