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| Number | Title | Issue Date |
| 7361625 | Photocatalyst producing method, photocatalyst, and gas purifier A carrier supporting titania thereon is further caused to carry a metal compound thereon. This metal compound is hydrogen reduced in a heating atmosphere at a first treatment temperature, then oxidized in a heating atmosphere at a second treatment temperature not hi... | 04/22/2008 |
| 7175825 | Method of producing titania solution Titania is dissolved in a hydrogen peroxide solution to produce an amorphous titania gel, then the amorphous titania gel and a hydrogen peroxide solution are mixed together to produce an amorphous titania sol, and then an alkali solution is supplied to the solution ... | 02/13/2007 |
