Photoreactive devices, translucent members, ornaments, anticorrosive devices, devices for reducing oxygen and devices for controlling growth of microorganisms
US6882459B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 28, 2001 |
| Grant date | Apr 19, 2005 |
| Priority date | — |
| Expiry date | Apr 27, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/542
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The inventive photoreactive device has a semiconductor and an oxidation-reduction material. The semiconductor has a conduction band with a potential and being capable of producing electrons under the irradiation of light on the semiconductor. The oxidation-reduction material has a redox potential being positive compared with the potential of the conduction band. The semiconductor supplies electrons into the oxidation-reduction material to reduce it under the irradiation of light for storing the electrons. The stored electrons are discharged from the oxidation-reduction material into a metal material to prevent the corrosion of the metal material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.