Patent Explorer
Browse, filter, and analyze 2 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| JPS59169386A | Motor drive circuit | Hitachi Microcomputer System Ltd | Expired / Lapsed | 1983-03-16 | — | 2003-03-16 | 0.0 yrs | 0 | |
| US4509147A | High speed semiconductor memory device having a high gain sense amplifier | Hitachi Microcomputer System Ltd | Expired / Lapsed | 1982-06-01 | 1985-04-02 | 2002-06-01 | 0.0 yrs | 20 |