A hinge apparatus and a portable terminal are provided including a pair of housings configured to open or close and one of the housings is positioned in parallel with a side of the other to rotate the portable terminal about 90° according to user preference. Thus, the user can enjoy the horizontal view...http://www.google.de/patents/US7532459?utm_source=gb-gplus-sharePatent US7532459 - Hinge apparatus and portable terminal having the same
