Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6496930 | Message receiving apparatus and message transmitting apparatus | Takatoshi Ono, Takeshi Saijo, Makoto Tatebayashi, Yasuo Okumura | 2002-12-17 |
| 6182215 | Information devices which select and use one out of plurality of encryption utilization protocols for protecting copyrights of digital productions | Makoto Tatebayashi | 2001-01-30 |
| 6058476 | Encryption apparatus for ensuring security in communication between devices | Natsume Matsuzaki, Makoto Tatebayashi | 2000-05-02 |
| 6047103 | Data transmitter, data transmitting method, data receiver, information processor, and information recording medium | Kazuhiko Yamauchi, Hiroshi Ueda, Masayuki Kozuka, Yoshihisa Fukushima, Makoto Tatebayashi +1 more | 2000-04-04 |
| 6028937 | Communication device which performs two-way encryption authentication in challenge response format | Makoto Tatebayashi, Natsume Matsuzaki, Motoji Omori, Masayuki Kozuka, Kazuhiko Yamauchi | 2000-02-22 |