US5404837A
Expired / Lapsed
US
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Method for preparing a graphite intercalation compound having a metal or metal compounds inserted between adjacent graphite layers
Assignee: Sharp Corp
•
Filing: 1993-04-22
•
Granted: 1995-04-11
•
Expires: 2013-04-22
Abstract
Abstract A method for preparing a graphite intercalation compound having a metal or a metal compound inserted between adjacent graphite layers, comprising simultaneously introducing a mixture of a vapor of both a hydrocarbon compound and an organo metallic compound together with a carrier gas into a reactor, and decomposing said hydrocarbon compound and said organo metallic compound on a single-crystalline substrate at a relatively low temperature.
Inventors
- 👤 Yoshikazu Yoshimoto
- 👤 Tomonari Suzuki
- 👤 Yoshiyuki Higashigaki
- 👤 Shigeo Nakajima
- 👤 Toshio Inoguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:46
CPC Classifications
C; C30; C30B; C30B29/00; C30B29/02; C30B29/04; C01; C01B; C01B32/00; C01B32/20; C01B32/21; C01B32/22; C23; C23C; C23C16/00; C23C16/22; C23C16/26; C30B25/00; C30B25/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
66 words
A process for producing a doped carbon film which is capable of N-type conductivity according to the kind of dopant species obtained by partial substitution of a dopant for carbon atoms which constitute graphite hexagonal net layer, consisting of simulataneous thermal decomposition of hydrocarbon as a source material for the host graphite and a source material for the N-type dopant, the N-type dopant atom being nitrogen.
Claim 2
Dependent Claim
66 words
A process for producing a doped carbon film which is capable of N-type conductivity according to the kind of dopant species obtained by partial substitution of a dopant for carbon atoms which constitute graphite hexagonal net layer, consisting of simulataneous thermal decomposition of hydrocarbon as a source material for the host graphite and a source material for the N-type dopant, the N-type dopant atom being nitrogen.
Claim 3
Dependent Claim
16 words
The process according to claim 1 wherein said source material for the N-type dopant is pyridine.
Claim 4
Dependent Claim
16 words
The process according to claim 1 wherein thermal decomposition is conducted at up to 1,000° C.
Claim 5
Dependent Claim
19 words
The process according to claim 1 wherein said doped carbon film is formed on a piece of single-crystalline substrate.
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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) | 1998-04-10 | 1998-10-10 | 1999-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-04-10 | 2002-10-10 | 2003-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-04-10 | 2006-10-10 | 2007-04-11 | $7700.00 | Window Closed / Lapsed |