Patent ID: 8307149

Claim:
A nonvolatile memory device to which data is written based on a logical address, comprising: a nonvolatile memory in which the data is written based on a physical address corresponding to the logical address, and which includes a plurality of physical blocks, each of the plurality of physical blocks including a plurality of pages, each of the plurality of pages being a predetermined writing unit, the nonvolatile memory including a normal block which is a physical block that stores data independently of a size of the data, and a temporary block which is a physical block that stores less than a page of data; a logical-physical address conversion table for storing correspondence information between a logical address and a physical address of the at least one page of data stored in the normal block; and a temporary table for storing correspondence information between a logical address and a physical address regarding the data stored in the temporary block, wherein the temporary block includes plural pages each of which includes data of the less than the page of data, the plural pages include plural valid pages, the plural valid pages include a specific valid page that contains data of the less than the page of data and management information including plural pointers that points to the valid pages in the temporary block, the management information includes a pointer to the specific valid page and pointers to valid pages other than the specific valid page.