Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6659746 | Shaft seal structure of vacuum pumps | Nobuaki Hoshino, Masahiko Okada, Shinya Yamamoto | 2003-12-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6659746 | Shaft seal structure of vacuum pumps | Nobuaki Hoshino, Masahiko Okada, Shinya Yamamoto | 2003-12-09 |