Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7907505 | Code disk with a plurality of tracks having different patterns | Masahiko Sakamoto, Masahiro Otani, Yasushi Kawashima, Isamu Higashioka, Masaru Imaizumi +2 more | 2011-03-15 |