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AssigneeToto Ltd.
InventorsMakoto Hayakawa, Toshiya Watanabe, Tamon Kimura, Mitsuyoshi Kanno, Keiichiro Norimoto
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An antimicrobial solid material having a satisfactory antimicrobial activity for a long term against sewage in any form of circulating, static and flowing waters or contacting portions thereof and a utilizing method thereof are provided. An antimicrobial solid material as one embodiment of the present invention comprises both of an antimicrobial metal ion and an antimicrobial metal in a metal state. In general, it is believed that antimicrobial metal ions have a potent antimicrobial effect when they exist in a liquid to be treated with a certain concentration or more, but they are rapidly released and exhausted so that their antimicrobial effects cannot last long. On the other hand, it is believed that the antimicrobial metal in a metal state does not have a prompt effect, but exhibits a certain bacteriostatic and fungistatic effect continuously for a long term. Therefore, the antimicrobial solid material containing both of the antimicrobial metal ions and the antimicrobial metal in a metal state thereof has both of a potent initial antimicrobial activity and an enduring bacteriostatic and fungistatic activity.
An antimicrobial solid material which comprises (1) metal ions selected from the group consisting of silver ions, copper ions and zinc ions, as antimicrobial metal ions;
An antimicrobial solid material which comprises a mixed layer having (1) metal ions selected from the group consisting of silver ions, copper ions and zinc ions, as antimicrobial metal ions, and (2) a metal selected from the group consisting of silver, copper and zinc, as an antimicrobial metal in a metal state.
An antimicrobial solid material which comprises (1) metal ions selected from the group consisting of silver ions, copper ions and zinc ions, as antimicrobial metal ions, and (2) a metal selected from the group consisting of silver, copper and zinc, as an antimicrobial metal in a metal state, said antimicrobial solid material being supported on a substrate.
An antimicrobial solid material which comprises a mixed layer having (1) metal ions selected from the group consisting of silver ions, copper ions and zinc ions, as antimicrobial metal ions, and (2) a metal selected from the group consisting of silver, copper and zinc, as an antimicrobial metal in a metal state, said mixed layer being supported on a substrate.
An antimicrobial solid material which comprises:
An antimicrobial solid material which comprises:
An antimicrobial solid material which comprises:
An antimicrobial solid material which comprises:
An antimicrobial solid material which comprises:
An antimicrobial solid material which comprises a substrate, a deep-layer antimicrobial metal ion layer supported on the substrate, an ion release-suppressing layer containing an antimicrobial metal in a metal state fixed on said antimicrobial metal ion layer, and a surface-layer antimicrobial metal ion layer supported on said ion release-suppressing layer.
An antimicrobial solid material which comprises both silver ions and copper ions as antimicrobial metal ions, and both silver and copper as antimicrobial metals in a metal state.
An antimicrobial solid material which comprises:
A process for producing an antimicrobial solid material which comprises:
A process for producing an antimicrobial solid material which comprises:
A process for producing an antimicrobial solid material which comprises:
An antimicrobial treatment method of a liquid which comprises
An antimicrobial solid material which comprises:
An antimicrobial solid material which comprises:
An antimicrobial solid material which comprises:
An antimicrobial solid material which comprises:
Dependencies are inferred from the claim text.