The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 19, 2024
Filed:
Apr. 16, 2021
Dendritik Design, Inc., Tokyo, JP;
DENDRITIK DESIGN, INC., Tokyo, JP;
Abstract
A database management system includes: a hierarchical database including one primary database, an intermediate database, and end databases; and a searching unit which searches, from registered data in the hierarchical database, for matching data which matches a search criterion. At least the end databases store plural pieces of the registered data. The primary database or the intermediate database includes a virtual data table in which search paths are grouped by common information relating to the plural pieces of the registered data. The search paths lead to the registered data stored in: a next-lower database; or the intermediate database or the end database, each being indirectly connected to the primary database or the intermediate database through the next-lower database. The searching unit adopts, as a starting point of a search, the intermediate database or the end database which involves the common information contained in the search criterion.