Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7328133 | Method of managing maintenance and maintenance managing apparatus | Kenji Utaka, Kenji Araki | 2008-02-05 |
| 7117123 | Method of managing maintenance and maintenance managing apparatus | Kenji Utaka, Kenji Araki | 2006-10-03 |