Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7517438 | Magnetic recording disk, magnetic recording disk manufacturing method and magnetic recording disk manufacturing system | Masahiro Shibamoto, Tetsuya Endoh, Miho Sakai, Naoki Watanabe | 2009-04-14 |
| 7115191 | Magnetic recording disk, magnetic recording disk manufacturing method and magnetic recording disk manufacturing system | Masahiro Shibamoto, Tetsuya Endoh, Miho Sakai, Naoki Watanabe | 2006-10-03 |