Patent ID: 7301728

Claim:
A recording medium cartridge comprising: a cartridge case containing a recording medium; a noncontact-type memory having an IC section for storing information and performing signal processing, and an antenna section for transmitting and receiving signals; and an accommodation portion for accommodating at least said antenna section of said noncontact-type memory and being formed inside said cartridge case, wherein said accommodation portion has a groove for partially inserting at least said antenna section of said noncontact-type memory and being formed in a furthest region of an inner surface of said cartridge case furthest from metallic parts of said cartridge, and a pin for supporting a projected part of at least said antenna section of said noncontact-type memory projecting from said groove and longitudinally projecting adjacent to said groove, and wherein the antenna section of said noncontact-type memory is placed in a region furthest from said metallic parts.