Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9921401 | Measuring device with alignment and reference position for measurement object | Tatsuya Aoki | 2018-03-20 |
| 5993971 | Optical information record medium | Keiichi Nito, Tohru Nagai, Tsutomu Noguchi, Mayumi Miyashita, Junetsu Seto | 1999-11-30 |
| 4798767 | Optical information record medium | Tokuei Aoki, Junichiro Kudo | 1989-01-17 |