License authentication device and license authentication method
US11568027B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | May 27, 2020 |
| Grant date | Jan 31, 2023 |
| Priority date | — |
| Expiry date | Nov 11, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/1078
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A license authentication device includes a memory that stores a license file including a license expiration date of an application that adjusts a parameter of a semiconductor manufacturing apparatus in a semiconductor factory; and a processor coupled to the memory. The processor acquires log data when the semiconductor manufacturing apparatus executes a processing; and determines whether or not a time included in the log data has passed the license expiration date stored in the license information storage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.