Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7427031 | Semiconductor memory device | Norihiko Hakushi, Atsushi Ohba, Takeshi Nakayama | 2008-09-23 |
| 7000846 | Semiconductor memory device | Norihiko Hakushi, Atsushi Ohba, Takeshi Nakayama | 2006-02-21 |
| 6724678 | Nonvolatile semiconductor memory unit | — | 2004-04-20 |
| 6646917 | Storage device managing nonvolatile memory by converting logical address to physical address of nonvolatile memory | — | 2003-11-11 |
| 6546517 | Semiconductor memory | — | 2003-04-08 |
| 6477547 | Processing system comprised of data processing device and data access device each converting data and mutually communicating the converted data | — | 2002-11-05 |
| 6421274 | Semiconductor memory device and reading and writing method thereof | — | 2002-07-16 |
| 6266279 | Nonvolatile semiconductor memory device, method for reading data from the nonvolatile semiconductor memory device, and method for writing data into the nonvolatile semiconductor memory device | — | 2001-07-24 |
| 6126071 | IC memory card system for authenticating an IC memory card, and IC memory card used for the same | — | 2000-10-03 |
| 5958079 | Memory card with error correction scheme requiring reducing memory capacity | — | 1999-09-28 |
| 5950013 | Memory card with submemory | Masanori Takao | 1999-09-07 |
| 5933854 | Data security system for transmitting and receiving data between a memory card and a computer using a public key cryptosystem | — | 1999-08-03 |
| 5917467 | PC card system having video input-output functions | — | 1999-06-29 |
| 5848076 | Memory card with capability of error correction and error correction method therefore | — | 1998-12-08 |
| 5802328 | Apparatus for detecting correct insertion of a PC card in an information processing system | — | 1998-09-01 |
| 5650974 | Semiconductor memory device and power supply control IC for use with semiconductor memory device | — | 1997-07-22 |
| 5629642 | Power supply monitor | — | 1997-05-13 |
| 5502682 | Semiconductor integrated circuit for controlling power source | — | 1996-03-26 |
| 5394300 | Thin multilayered IC memory card | — | 1995-02-28 |