Multi purpose standard IP is the BAS-MS type. Blue pigment was added to increase resolution in BAS-SR IP. Protective layer was excluded in BAS-TR IP of 3H detection. Imaging Plate (IP) was invented in Fujifilm as the key device for the digital X-ray imaging system named Fuji computed radiography. Later on, imaging plate was found to be effective for scientific imaging such as radioisotope detection and electron detection. This was originally written by Mr. Keiji Mori (Fuji Photo Film).