Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6460858 | Mechanical seal | Masayuki Toyoshima, Hiroshi Oka | 2002-10-08 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6460858 | Mechanical seal | Masayuki Toyoshima, Hiroshi Oka | 2002-10-08 |