Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5980212 | Anode-cathode structure for ion pump having specifically determined dimensions | Guo Hua Shen, Nozomu Takagi, Toshihiro Terasawa, Tsuyoshi Kotani, Hiroyuki Kinpara +1 more | 1999-11-09 |