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US 8,357,498 B2Granted
Microorganism culture device and microorganism culture medium comprising the same
AssigneeJnc Corporation
InventorsMasashi Ushiyama, Shigeyuki Aoyama
Life of this patent
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Abstract
A microorganism culture device comprising a porous matrix layer having a basis weight of 40 to 100 g/m2 and an air permeability of 7 to 24 cm/sec, and at least one layer of a water-soluble polymer layer laminated with the matrix layer.
Claims6
A microorganism culture device, comprising:
- a porous matrix layer having a basis weight of 40 to 100 g/m2;
- air permeability of 7 to 24 cm/sec;
- at least one sub-layer of a multilayered water-soluble polymer laminated with the matrix layer;
- and
- at least one type of material selected from the group consisting of a nutrient for microorganism growth, a coloring agent, and a selective agent,
- wherein letters are assigned to the sub-layers of the water-soluble polymer layer in alphabetical order beginning with the sub-layer nearest the porous matrix layer, the water-soluble layer comprising two sub-layers, layer A and layer B, wherein layer A comprises a water-soluble polymer and layer B comprises a water-soluble polymer;
- and
- wherein the at least one type of material selected from the group consisting of a nutrient for microorganism growth, a coloring agent, and a selective agent is contained in layer A, layer B, or in layer A and layer B.
5 more elements
A sheet-form microorganism culture device, comprising:
- a porous matrix layer having a basis weight of 40 to 100 g/m2;
- air permeability of 7 to 24 cm/sec;
- and
- at least one layer of a water-soluble polymer laminated with the matrix layer,
- wherein the device is bonded at the center of an adhesive sheet larger than the device, with the porous matrix layer of the device being an upper layer, and with a transparent film larger than the device covering the device by contacting the porous matrix layer and aligning the center of the transparent film on the device, an area of the transparent film not in contact with the device being bonded to an area of the adhesive sheet not bonded to the device;
- and
- at least one type of material selected from the group consisting of a nutrient for microorganism growth, a coloring agent, and a selective agent.
4 more elements
Dependencies are inferred from the claim text.