Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12355890 | Authentication apparatus and authentication method | Yosuke Kaga, Kenta Takahashi, Wataru Nakamura, Yoshiko Yasumura | 2025-07-08 |
| 11115214 | Biometric signature system and biometric signature method | Yosuke Kaga, Kenta Takahashi | 2021-09-07 |
| 11018876 | Signature verification system, signature verification method, and storage medium | Yosuke Kaga, Kenta Takahashi, Ken Naganuma | 2021-05-25 |
| 10719593 | Biometric signature system and biometric certificate registration method | Yosuke Kaga, Kenta Takahashi | 2020-07-21 |
| 8774705 | Learning support system and learning support method | Ryuji Mine, Takeshi Nagasaki | 2014-07-08 |
| 7590651 | Search apparatus | Yoshiki Niwa, Shigeo Sumino | 2009-09-15 |
| 7047255 | Document information display system and method, and document search method | Osamu Imaichi, Tetsuo Nishikawa, Toru Hisamitsu, Makoto Iwayama | 2006-05-16 |