Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12231553 | Key management device, quantum cryptography communication system, and computer program product | Yu Yu, Yasuhiro Katsube, Yoshimichi Tanizawa, Ririka Takahashi | 2025-02-18 |
| 12206770 | Quantum cryptography storage system, distribution control device, and computer program product | Yoshimichi Tanizawa | 2025-01-21 |
| 9538255 | Information output device, information manipulation device, and computer program product | Hiroshi Isozaki, Tatsuya Uehara, Noriya Sakamoto, Jun Kano, Takayasu Tsuchiuchi +1 more | 2017-01-03 |
| 8218952 | Content playback device and content playback method | Shinichiro Nakano | 2012-07-10 |
| 6373534 | Intelligent digital television receiver | Seijiro Yasuki, Yoshihisa Sakazaki, Kenji Shimoda | 2002-04-16 |