Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9709412 | Navigation apparatus, vehicle information display apparatus, and vehicle information display system | Yusaku Yamada, Yasuhiro Ishii | 2017-07-18 |
| 9134136 | Navigation apparatus, vehicle information display apparatus, and vehicle information display system | Yusaku Yamada, Yasuhiro Ishii | 2015-09-15 |
| 6731563 | Data backup device and step-up/step-down power supply | Chikara Yokoyama | 2004-05-04 |