Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7360250 | Illegal access data handling apparatus and method for handling illegal access data | Akiko Miyagawa, Shinobu Ushirozawa | 2008-04-15 |
| 6775769 | Cryptographic apparatus, encryptor, and decryptor | Shinobu Ushirozawa | 2004-08-10 |
| 6226385 | Encryption communication system capable of reducing network managing workload | Takuya Taguchi, Yasuhisa Tokiniwa, Akira Watanabe, Tetsuo Ideguchi, Shigeaki Tanimoto +2 more | 2001-05-01 |