Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5695883 | Carbon member having a metal spray coating | Yoshio Harada, Shigeki Okunishi, Tetsuro Tojo, Jiro Hiraiwa, Koji Kuroda | 1997-12-09 |
| 5619099 | Electron tubes using insulation material containing little alkali metal | Kimitsugu Nakamura, Masayoshi Sahara, Atushi Ishikawa, Chiyoshi Okuyama | 1997-04-08 |