A method for providing idea maps by using classificaion in terms of viewpoints

PURPOSE: A method for providing patent maps by classification of viewpoints is provided to create intuitive and easy to understand patent maps by classifying patents. CONSTITUTION: Patent documents, which are assigned viewpoint classification codes, are searched(S41). The viewpoint classification codes are extracted from searched patent documents as described above(S44). The searched documents are classified according to the viewpoint classification codes. The viewpoint classification codes are grouped according to a predetermined viewpoint(S45). A rearranged classification name is given to the viewpoint classification codes(S46). The viewpoint patent map is created based on the rearranged classification name as described above(S48).