Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6432325 | Electrode | Akira Takeishi, Makoto Takahashi, Dai Matsuoka, Masatada Yodogawa, Hiraku Harada | 2002-08-13 |
| 6383416 | Electron-emitting material and preparing process | Akira Takeishi, Makoto Takahashi, Dai Matsuoka, Masatada Yodogawa, Hiraku Harada | 2002-05-07 |