DISPLAY METHOD OF PATENT CLASSIFICATION, DEVICE, RECORDING MEDIUM AND PROGRAM THEREOF

摘要

PROBLEM TO BE SOLVED: To enable enhancement of efficiency of patent search by enabling grasping of patent documents from various viewpoints, so that their contents can be grasped from more viewpoints than that of their 'summaries', even without reading the specifications of the patent documents, in a patent classification display method of the patent documents to which multi-viewpoint patent classifications have been imparted. SOLUTION: (a) The multi-viewpoint patent classifications imparted to the patent documents are extracted, (b) the multi-viewpoint patent classifications of high hierarchies are read by each extracted multi-viewpoint patent classification, using a database in which a multi-viewpoint patent classification table is stored, (c) at least one of the extracted multi-viewpoint patent classification and the high hierarchies is displayed with their titles. The multi-viewpoint patent classifications include theme codes, viewpoints and fine classifications, and the theme codes and the viewpoints of the multi-viewpoint patent classifications imparted to the patent documents can be outputted by arranging them in the order of higher frequency of appearance in a process (c).