Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6922630 | Portable terminal with the function of walking navigation | Kishiko Maruyama, Shigeru Shimada | 2005-07-26 |
| 6748317 | Portable terminal with the function of walking navigation | Kishiko Maruyama, Shigeru Shimada | 2004-06-08 |
| 6580999 | Portable terminal with the function of walking navigation | Kishiko Maruyama, Shigeru Shimada | 2003-06-17 |
| 6430498 | Portable terminal with the function of walking navigation | Kishiko Maruyama, Shigeru Shimada | 2002-08-06 |