Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6466518 | Time measurement device | Hidehiro Akahane, Kenichi Okuhara, Akihiko Maruyama | 2002-10-15 |
| 6370087 | Time measurement device and time measurement method | Hidehiro Akahane, Kenichi Okuhara, Akihiko Maruyama | 2002-04-09 |