Patent ID: 8415157

Claim:
A cell culture method for culturing cells only within microchambers, the method comprising: injecting cells into the microchambers formed in a cell culture chamber, and culturing the cells only within the microchambers, wherein the cells do not adhere to upper surfaces of convex portions, wherein the cell culture chamber comprises a plurality of microchambers formed on a surface of the cell culture chamber, and wherein the convex portions that partition the microchambers adjacent to one another are formed such that cells are contained in the microchambers, thereby preventing the cells from adhering to the upper surfaces of the convex portions, wherein each of the upper surfaces of the convex portions of the cell culture chamber has a short side width of from 0.5 to 15 μm, and each of the convex portions has a height more than three times of the short side width, and wherein the cells are liver cells.