Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8031869 | Information recording medium, usage management method, and usage management apparatus | Masaru Yamaoka, Takashi Yumiba, Hideshi Ishihara | 2011-10-04 |
| 7949762 | Address managing method and communication apparatus | Ayako Takatsuji, Junji Yoshida, Masazumi Yamada | 2011-05-24 |