Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10115429 | Disk magazine | Yoichi Yamamoto, Norikatsu Yoshida, Tomoaki Namekawa | 2018-10-30 |
| 10049699 | Disc tray and tray holder | Yoichi Yamamoto, Shinichi Maeda, Norikatsu Yoshida | 2018-08-14 |