2008年2月13日,日本防卫省展示了正在研发中的新型坦克样车。TK-X是日本军方对正在开发中的新一代主战坦克的通称,90式坦克在1980年公布的两辆样车时也曾被冠以TK-X之名。这次展示的TK-X是日本第四代新型主战坦克,其开发始于20世纪90年代,在定型批量生产之后将取代和补充日本陆上自卫队现役的74式和90式坦克。该型坦克由防卫省位于神奈川县 On February 13, 2008, Japan’s Ministry of Defense showed a new tank-like vehicle under development. TK-X is the generic name for a new generation of main battle tanks being developed by the Japanese military. The 90-tank was also named TK-X in the two prototypes released in 1980. The demonstration of the TK-X is the fourth generation of the new Japanese main battle tank, which was developed in the 1990s and will replace and supplement the existing SSDF 74 and 90 tanks of the Japanese Maritime Self-Defense Force after the final mass production. This type of tank is located in Kanagawa Prefecture by the Ministry of Defense