Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6238730 | Gas introduction pipe and magnetic recording medium production method using the pipe | Tomohiro Kubo | 2001-05-29 |
| 6021964 | Gas introduction pipe and magnetic recording medium production method using the pipe | Tomohiro Kubo | 2000-02-08 |