Issued Patents 2022
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11516195 | Terminal device, key distribution management device, server-client system, communication method, and programs | Yuto KAWAHARA, Hitoshi Fuji, Tetsutaro Kobayashi, Tomohide Yamamoto | 2022-11-29 |
| 11483145 | Key exchange device, key exchange system, key exchange method, and key exchange program for exchanging a key with another device | Masahiro Matsui, Yuki OKANO, Tetsutaro Kobayashi | 2022-10-25 |
| 11451518 | Communication device, server device, concealed communication system, methods for the same, and program | Tetsutaro Kobayashi, Yuto KAWAHARA, Hitoshi Fuji, Kazuki Yoneyama | 2022-09-20 |
| 11411720 | Key distribution system, terminal device, key distribution method, and program | Yuki OKANO, Tetsutaro Kobayashi | 2022-08-09 |
| 11388001 | Encrypted communication device, encrypted communication system, encrypted communication method, and program | Tetsutaro Kobayashi, Yuto KAWAHARA, Tomohide Yamamoto, Hironobu Okuyama | 2022-07-12 |
| 11336441 | Communication terminal, server apparatus, and program | Yuki OKANO, Ryo Nishimaki, Tetsutaro Kobayashi | 2022-05-17 |
| 11336436 | Key distribution system and method, key generation apparatus, representative user terminal, server apparatus, user terminal, and program | Tetsutaro Kobayashi, Yuto KAWAHARA, Hitoshi Fuji, Kazuki Yoneyama | 2022-05-17 |
| 11258588 | Key exchange method and key exchange system | Tetsutaro Kobayashi, Yuto KAWAHARA, Hitoshi Fuji, Kazuki Yoneyama | 2022-02-22 |
| 11223472 | Encrypted message search method, message transmission/reception system, server, terminal and program | Yuki OKANO, Ryo Nishimaki, Tetsutaro Kobayashi | 2022-01-11 |