Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8257514 | Ferrous seal sliding parts and producing method thereof | Takemori Takayama, Koji Yamada | 2012-09-04 |
| 5345958 | Double fluid layer-type ultrasonic cleaning apparatus | — | 1994-09-13 |
| 4867186 | Chloro-fluoro-carbon liquid jetting immersion cleaning apparatus | — | 1989-09-19 |