Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4746268 | End face mechanical shaft seal for use in hydraulic machines and seal ring assembly for use in the shaft seal | Osamu Sugimoto, Teiji Horita, Katsutoshi Nii, Kazuhiko Kawaike, Ichiro Hitomi +1 more | 1988-05-24 |