Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5619099 | Electron tubes using insulation material containing little alkali metal | Kimitsugu Nakamura, Masayoshi Sahara, Atushi Ishikawa, Junichi Takeuchi | 1997-04-08 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5619099 | Electron tubes using insulation material containing little alkali metal | Kimitsugu Nakamura, Masayoshi Sahara, Atushi Ishikawa, Junichi Takeuchi | 1997-04-08 |