Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6549469 | Semiconductor memory system | — | 2003-04-15 |
| 5796092 | IC card and IC card system | Noriharu Nagata | 1998-08-18 |
| 5797024 | PC card | — | 1998-08-18 |
| 5778195 | PC card | — | 1998-07-07 |
| 5583748 | Semiconductor module having multiple circuit boards | Tetsuro Washida | 1996-12-10 |
| 5577195 | Semiconductor data storage device with means for protecting data upon external power supply connection and disconnection | — | 1996-11-19 |
| 5566311 | Semiconductor memory controller for reducing pass through current | — | 1996-10-15 |
| 5521786 | Semiconductor module and IC package used for the semiconductor module | Tetsuro Washida | 1996-05-28 |
| 5490118 | Multiple power source memory control circuit for memory devices | Koichi Nishioka, Kyoichi Shimakawa | 1996-02-06 |
| 5378944 | IC card input/output control circuit | — | 1995-01-03 |
| 5172342 | Portable semiconductor memory unit | — | 1992-12-15 |
| 5055661 | IC card with switchable bus structure | — | 1991-10-08 |