Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7209899 | Management device, network apparatus, and management method | Osamu Kawai, Hiroshi Oki, Shoichi Sano, Toshihisa Nakamura, Takeshi Okazaki | 2007-04-24 |
| 6460137 | Encryption processing system | Ryota Akiyama, Yuzuru Koga, Masayuki Ishizaki, Makoto Yoshioka | 2002-10-01 |
| 5784464 | System for and method of authenticating a client | Ryota Akiyama, Yuzuru Koga, Masayuki Ishizaki | 1998-07-21 |
| 4516173 | Image data conversion method and character code/character pattern conversion apparatus | Susumu Abe, Takeshi Kitahara | 1985-05-07 |