US4932331A
Expired / Lapsed
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Novel single-bond carbon film and process for the production thereof
Assignee: Canon Inc
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Filing: 1988-10-13
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Granted: 1990-06-12
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Expires: 2008-10-13
Abstract
Abstract There is provided a novel single-bond carbonic film, matrix of which comprises carbon atoms and which is characterized by having a peak A at 1340±20 cm -1 and a peak B at 1580±10 cm -1 in Raman spectrum; a value of 9.7 or more for the ratio of I A /I B between the intensity of said peak A(I A ) and the intensity of said peak B(I B ): and a value in the range of from 30 cm -1 to 110 cm -1 for the half band width of said peak A.
Inventors
- 👤 Noriko Kurihara
- 👤 Keiko Ikoma
- 👤 Keiji Hirabayashi
- 👤 Yasushi Taniguchi
- 👤 Susumu Ito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:20
CPC Classifications
C; C23; C23C; C23C16/00; C23C16/22; C23C16/26; Y; Y10; Y10T; Y10T428/00; Y10T428/30
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
90 words
A single-bond carbonic film, matrix of which comprises carbon atoms and which is characterized by having a peak A at 1340±20 cm -1 and a peak B at 1580±10 cm -1 in Raman spectrum; a value of 9.7 or more for the ratio of I A /I B between the intensity of said peak A(I A ) and the intensity of said peak B(I b ) and a value in the range of from 30 cm -1 to 110 cm -1 for the half band width of said peak A.
Claim 2
Dependent Claim
90 words
A single-bond carbonic film, matrix of which comprises carbon atoms and which is characterized by having a peak A at 1340±20 cm -1 and a peak B at 1580±10 cm -1 in Raman spectrum; a value of 9.7 or more for the ratio of I A /I B between the intensity of said peak A(I A ) and the intensity of said peak B(I b ) and a value in the range of from 30 cm -1 to 110 cm -1 for the half band width of said peak A.
Claim 3
Dependent Claim
21 words
The single-bond carbon film according to claim 1, wherein a trace amount of one or more elements other than carbon atom.
Claim 4
Dependent Claim
23 words
The single-bond carbon film according to claim 2, wherein said element is a member selected from the group consisting of Si and Ge.
Claim 5
Dependent Claim
26 words
The single-bond carbon film according to claim 2, wherein said element is a member selected from the group consisting of N, P, As, B and Al.
Claim 6
Dependent Claim
25 words
The single-bond carbon film according to claim 2, wherein said element is a member selected from the group consisting of O, S, Se and Te.
Claim 7
Dependent Claim
25 words
The single-bond carbon film according to claim 2, wherein said element is a member selected from the group consisting of F, Cl, Br and I.
Claim 8
Dependent Claim
27 words
The single-bond carbon film according to claim 2, wherein said element is a member selected from the group consisting of He, Ne, Ar, Kr, Xe and Rn.
Claim 9
Dependent Claim
23 words
The single-bond carbon film according to claim 2, wherein said element is a member selected from the group consisting of H and Li.
Claim 10
Dependent Claim
29 words
The single-bond carbon film according to claim 2, wherein said element is a member selected from the group consisting of Sc, Y and lanthanoids La through Lu excluding Pm.
Claim 11
Dependent Claim
28 words
The single-bond carbon film according to claim 2, wherein said element is a member selected from the group consisting of alkali metals excluding Li and alkaline earth metals.
Claim 12
Dependent Claim
24 words
The single-bond carbon film according to claim 2, wherein said element is a member selected from the group consisting of Fe, Mn and Ni.
References Cited (Backward Citations)
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1993-06-11 | 1993-12-11 | 1994-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-06-11 | 1997-12-11 | 1998-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-06-11 | 2001-12-11 | 2002-06-12 | $7700.00 | Window Closed / Lapsed |