Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9367779 | Encryption processing device, encryption processing system and control method for encryption processing device | Naohiko Koakutsu, Toshihiro Tsukada | 2016-06-14 |
| 8006051 | Data processing device having a maintenance counter function | Takashi Takehana, Hisakazu Koyama | 2011-08-23 |
| 7634648 | Data processing apparatus and control method for a data processing apparatus that temporarily provides a plurality of boot sectors in flash ROM | Hisakazu Koyama, Takashi Takehana | 2009-12-15 |