Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11995211 | Secure authentication method and secure authentication system | Naohisa NISHIDA, Tatsumi OBA, Yuji Unagami, Tadanori Teruya, Nuttapong Attrapadung | 2024-05-28 |
| 11436471 | Prediction model sharing method and prediction model sharing system | Naohisa NISHIDA, Yuji Unagami, Tatsumi OBA, Ryo Kato, Shota Yamada +3 more | 2022-09-06 |
| 11431489 | Encryption processing system and encryption processing method | Toshiya Shimizu, Takeshi Shimoyama, Yusuke Sakai, Seonghan Shin | 2022-08-30 |
| 10649919 | Information processing method and information processing system | Yuji Unagami, Naohisa NISHIDA, Shota Yamada, Nuttapong Attrapadung, Takahiro Matsuda | 2020-05-12 |
| 10303893 | Search method, search device, search system, and program | Yuji Unagami, Natsume Matsuzaki, Shota Yamada, Nuttapong Attrapadung, Takahiro Matsuda | 2019-05-28 |
| 9215068 | Search system, search method, and program | Kana Iwamura, Takatsugu Hirokawa, Koji Tsuda, Hiromi Arai, Jun Sakuma +3 more | 2015-12-15 |
| 6910130 | System for and method of unconditionally secure digital signature | Hideki Imai, Junji Shikata, Yuliang Zheng | 2005-06-21 |