US5093302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radioactive catalyst and oxidation-reduction method and apparatus using same
Assignee: Doryokuro Kakunenryo Kaihatsu Jigyodan
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Filing: 1990-12-21
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Granted: 1992-03-03
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Expires: 2010-12-21
Abstract
Abstract A radioactive catalyst is disclosed which comprises a fine particle of semiconductor and a high radioactive platinum group element deposited on the particle of semiconductor. The radioactive catalyst serves as a source of radiation and also as a catalyst for oxidation-reduction reaction. By bringing the radioactive catalyst into contact with water, the water is decomposed by the oxidation-reduction reaction to produce hydrogen and oxygen.
Inventors
- 👤 Nobuyuki Sasao
- 👤 Yukio Wada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:43
CPC Classifications
C; C01; C01B; C01B3/00; C01B3/02; C01B3/04; C01B3/042; B; B01; B01J; B01J23/00; B01J23/38; B01J23/40; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/36; Y02P; Y02P20/00; Y02P20/10; Y02P20/133
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
62 words
A radioactive catalyst comprising a fine particle of semiconductor having a particle size of 0.1 to 10 μm, and a radioactive platinum group element, which generates radiation energy of about 10 5 to about 10 6 eV, deposited on said particle of semiconductor, whereby said radioactive catalyst serves as a source of radiation and also as a catalyst for an oxidation-reduction reaction.
Claim 2
Dependent Claim
62 words
A radioactive catalyst comprising a fine particle of semiconductor having a particle size of 0.1 to 10 μm, and a radioactive platinum group element, which generates radiation energy of about 10 5 to about 10 6 eV, deposited on said particle of semiconductor, whereby said radioactive catalyst serves as a source of radiation and also as a catalyst for an oxidation-reduction reaction.
Claim 3
Dependent Claim
21 words
The radioactive catalyst according to claim 1, wherein said radioactive platinum group element comprises ruthenium-106 recovered from a spent nuclear fuel.
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) | 1995-03-03 | 1995-09-02 | 1996-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-03-03 | 1999-09-02 | 2000-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-03-03 | 2003-09-02 | 2004-03-03 | $7700.00 | Window Closed / Lapsed |