Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11847341 | Memory card, memory system, and method of consolidating fragmented files | Hidekazu Nanzawa, Yuichi Emoto | 2023-12-19 |
| 6771979 | Mobile telephone | — | 2004-08-03 |
| 6434658 | Memory device operable with a small-capacity buffer memory and having a flash memory | — | 2002-08-13 |
| 6363009 | Storage device | — | 2002-03-26 |
| 6126070 | IC memory card with security check | — | 2000-10-03 |
| 6079019 | IC memory card | — | 2000-06-20 |
| 5910917 | Multi-chip IC memory device with a single command controller and signal clock generator | — | 1999-06-08 |
| 5845066 | Security system apparatus for a memory card and memory card employed therefor | — | 1998-12-01 |
| 5761144 | Memory card | — | 1998-06-02 |
| 5758121 | Data storage security apparatus and method which erases memory and utilizes a power switch to cut-off electric power during unsuccessful access | — | 1998-05-26 |
| 5737571 | System for discriminating that an external processor is permitted to access a data storage device utilizing prescribed control signals including access enable signal | — | 1998-04-07 |
| 5737582 | IC card and IC card system | — | 1998-04-07 |