Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4995796 | Multi-section roots vacuum pump of reverse flow cooling type | Shigeharu Kambe | 1991-02-26 |
| 4936757 | Multi-section vacuum pump | Shigeharu Kambe | 1990-06-26 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4995796 | Multi-section roots vacuum pump of reverse flow cooling type | Shigeharu Kambe | 1991-02-26 |
| 4936757 | Multi-section vacuum pump | Shigeharu Kambe | 1990-06-26 |