Patents by Inventor Shigehito Iwase

Shigehito Iwase has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method, apparatus, and computer readable medium for performing semantic analysis and generating a semantic structure having linked frames
    Patent number: 6243670
    Abstract: A method for performing a semantic analysis process on a computer system including a storage unit and an interface includes the steps of: receiving a syntactic tree generated from a natural language sentence text; determining whether an analysis object, which is one of nodes of the syntactic tree, is a verb phrase class which has a verb as a head or a non-verb phrase class which has mainly a noun as the head on the basis of subdivided type information of a phrase of the node with reference to first data stored in the storage unit; analyzing a relation between a verb in the analysis object and a deep case of the verb when the analysis object is the verb phrase class; analyzing a modificative relation in the analysis object when the analysis object is the non-verb phrase class; generating a semantic structure of the natural language sentence text wherein the semantic structure comprises semantic frames corresponding to nodes of the syntactic tree, at least two semantic frames of the semantic frames being linked
    Type: Grant
    Filed: August 31, 1999
    Date of Patent: June 5, 2001
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Katsuji Bessho, Shigehito Iwase