Tablet

Abstract

The present invention can retain the volume of a tablet large without increasing the thickness of the tablet or the like dimension and prevents a plurality of tablets from sticking to each other even if they are subjected to a film-coating or the like treatment, so as to improve the yield. The tablet is a tablet ( 1 ) longer in one direction when seen in plan. The tablet ( 1 ) has side edges ( 6 ) each of which extends in a longitudinal direction and is formed in the shape of a curve projecting outwardly in plan view. The curve has a radius of curvature (R 1 ) set to at least 1.5 times a length (L) of the tablet. This makes a projected area of the tablet ( 1 ) in plan view at least 97% with respect to a projected area of a standard elliptical tablet having opposite end portions each of which is formed by a semi-circle having a diameter of a width (W) of the tablet.

1 . A tablet being longer in one direction when seen in plan and having side edges each of which extends along a longitudinal direction and is formed in the shape of a curve projecting outwardly, wherein
 the tablet has a projected area in plan view of at least 97% with respect to a projected area of a standard elliptical tablet having opposite end portions each of which is formed by a semi-circle having a diameter of a width of the tablet.   
   
   
       2 . The tablet as set forth in  claim 1 , having the whole periphery formed by curves projecting outwardly when seen in plan. 
   
   
       3 . The tablet as set forth in  claim 3 , having a longitudinal end portion formed by an end arc of a radius of curvature, the end arc having opposite ends smoothly connected to the sides edges extending along the longitudinal direction. 
   
   
       4 . A tablet being longer in one direction when seen in plan and having side edges each of which extends along a longitudinal direction and is formed in the shape of a curve projecting outwardly, wherein
 the side edge has a radius of curvature at least 1.5 times a length of the tablet.   
   
   
       5 . The tablet as set forth in  claim 4 , which has a projected area in plan view of at least 97% with respect to a projected area of a standard elliptical tablet having opposite end portions each of which is formed by a semi-circle having a diameter of a width of the tablet. 
   
   
       6 . The tablet as set forth in  claim 4 , wherein the side edge has the radius of curvature not more than 6 times the tablet length. 
   
   
       7 . The tablet as set forth in  claim 4 , wherein the whole periphery of the tablet is formed by curves projecting outwardly. 
   
   
       8 . The tablet as set forth in  claim 7 , having a longitudinal end portion formed by an end arc of a radius of curvature, the end arc having opposite ends smoothly connected to the sides edges extending along the longitudinal direction. 
   
   
       9 . The tablet as set forth in  claim 5 , wherein the side edge has the radius of curvature not more than 6 times the tablet length. 
   
   
       10 . The tablet as set forth in  claim 5 , wherein the whole periphery of the tablet is formed by curves projecting outwardly. 
   
   
       11 . The tablet as set forth in  claim 6 , wherein the whole periphery of the tablet is formed by curves projecting outwardly. 
   
   
       12 . The tablet as set forth in  claim 9 , wherein the whole periphery of the tablet is formed by curves projecting outwardly.