Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11294306 | Recording medium and recording device | Nobuki Nemoto, Sumio Ogawa, Yuuji Yoshida | 2022-04-05 |
| 7283433 | Manufacturing method for optical head device and optical head device | Hisahiro Ishihara, Katsuya Moriyama | 2007-10-16 |