Inventor
HAYAMIZU YUTO
JP9 patents
Patents
9 patentsUS11176092B2Nov 16, 2021
Database management system and anonymization processing method
HITACHI LTD1 citations61
US10885030B2Jan 5, 2021
Database management system and computer system having first and second query execution parts which execute database operations in parallel
HITACHI LTD1 citations61
US12430334B2Sep 30, 2025
Database management apparatus and method
HITACHI LTD0 citations51
US11709839B2Jul 25, 2023
Database system and query execution method
HITACHI LTD0 citations51
US11494383B2Nov 8, 2022
Database management system and database management method
HITACHI LTD0 citations51
US11061907B2Jul 13, 2021
Database management system and method
HITACHI LTD0 citations50
US11650988B2May 16, 2023
Database management system and database processing method
HITACHI LTD0 citations47
US11074271B2Jul 27, 2021
Database management system and database management method
HITACHI LTD0 citations45
US10747446B2Aug 18, 2020
Computer system and storage device activation control method
HITACHI LTD0 citations36