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:
Oct. 07, 2025
Filed:
Mar. 29, 2019
Hitachi, Ltd., Tokyo, JP;
Takuya Okuyama, Tokyo, JP;
Masanao Yamaoka, Tokyo, JP;
Hitachi Vantara, Ltd., Yokohama, JP;
Abstract
Searching for a ground state of an Ising model is performed so that a combinatorial optimization problem is efficiently solved. An information processing apparatus stores an energy function setting an interaction between an i-th spin of a first spin group and a j-th spin of a second spin group so that the i-th spin of the first spin group and the j-th spin of the second spin group have the same value in a ground state in an interaction relationship of an Ising model represented as a complete bipartite graph connecting N spins of the first spin group and of the second spin group, and searches for the ground state of the Ising model based on the energy function and information unique to the spins. The search for the ground state of the Ising model is performed by applying an algorithm of simulated annealing method to the above-mentioned energy function.