Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8200517 | User activity estimation system and a user activity estimating method | Kenji Sakamoto, Naoharu Yamada, Satoshi Tanaka, Kenichi Yamazaki | 2012-06-12 |
| 7952465 | Wireless tag determination system and wireless tag determination method | Kenji Sakamoto, Yoshinori Isoda, Satoshi Tanaka, Kenichi Yamazaki | 2011-05-31 |
| 7673039 | Server apparatus and information providing method | Kenji Sakamoto, Kenichi Yamazaki | 2010-03-02 |
| 7603298 | Tag grouping system and tag grouping method | Kenji Sakamoto, Kenichi Yamazaki | 2009-10-13 |
| 7283051 | Management system and management method for managing a wireless tagged article | Kenji Sakamoto, Naoharu Yamada, Kenichi Yamazaki | 2007-10-16 |
| 7224277 | Tag selector, tag selection system, and tag selection method | Kenji Sakamoto, Kenichi Yamazaki | 2007-05-29 |
| 7218228 | Article management apparatus and information processing methods | Kenji Sakamoto, Kenichi Yamazaki | 2007-05-15 |
| 7158035 | Server apparatus and information providing method | Kenji Sakamoto, Kenichi Yamazaki | 2007-01-02 |