Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7269529 | Data processing apparatus, program, and method for testing a secured circuit and maintaining confidentiality of the circuit | Masafumi Kusakawa, Kyoji Shibutani, Sumio Morioka, Asami Yoshida, Muneki Shimada +1 more | 2007-09-11 |
| 5864527 | Recording and reproducing apparatus for data storage and/or audio | — | 1999-01-26 |
| 5535125 | Navigation system data recordable by user, recording medium thereof, and methods for recording/reproducing to/from the same | — | 1996-07-09 |
| 5477525 | Data destruction preventing method, recording apparatus provided with data destruction preventing capability, and disc recorded with guard band | — | 1995-12-19 |