Issued Patents 2011
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8005219 | Data decryption apparatus and data encryption apparatus | Taro Togawa, Kaori Endo, Takeshi Otani, Masakiyo Tanaka | 2011-08-23 |
| 7974846 | Data embedding device and data extraction device | Yoshiteru Tsuchinaga, Masanao Suzuki, Masakiyo Tanaka | 2011-07-05 |
| 7949016 | Interactive communication system, communication equipment and communication control method | Yoshiteru Tsuchinaga, Masanao Suzuki, Masakiyo Tanaka | 2011-05-24 |
| 7925500 | Pitch conversion method and device for converting a pitch of an input signal into a desired pitch | Kaori Endo, Chikako Matsumoto, Taro Togawa | 2011-04-12 |