Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7599791 | Spot searching device, navigation apparatus, spot searching method, spot searching program, and information recording medium having spot searching program | — | 2009-10-06 |
| 5667440 | Bidirectional communication system | Masafumi Sasaki, Takemi Yumoto, Kazuki Komatsu | 1997-09-16 |