SEARCH FORMULA VALIDITY DETERMINATION DEVICE, PATENT SEARCH DEVICE, SEARCH FORMULA VALIDITY DETERMINATION METHOD, AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a search formula validity determination device in which even a person who does not have sufficient knowledge can perform an appropriate search when creating a patent search formula.SOLUTION: A search formula validity determination device includes: a rule storage part 101 capable of storing one or more patent classification relation rules, which are rules related to two or more relations which can be included in a patent search formula; a reception part 102 for receiving a patent search formula including two or more patent classifications; a patent classification inclusion information acquisition part 104 for acquiring patent classification information which is information including two or more patent classifications out of the patent search formula; a determination part 106 for determining whether or not the patent classification inclusion information accords with one or more patent classification relation rules by applying the patent classification inclusion information to one or more patent classification relation rules in the rule storage part 101; and an output part 107 for outputting a determination result of the determination part 106. With the patent search formula validity determination device 1, when creating a patent search formula, it can be determined whether or not it is an appropriate combination of patent classifications.