EN

Eisaku Nishiyama

HI Hitachi: 2 patents #13,388 of 28,497Top 50%
Overall (All Time): #2,218,581 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6457007 Distributed database management system including logical database constituted by a group of physical databases Satoshi Kikuchi, Hiromichi Ito, Keiichi Nakane, Hisashi Hashimoto 2002-09-24
5721904 Database access system and method of controlling access management to a database access system for a plurality of heterogeneous database servers using SQL Hiromichi Ito, Satoshi Kikuchi, Keiichi Nakane, Hisashi Hashimoto, Yusuke Hino 1998-02-24