Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6979949 | Fluorescent luminous tube with getter mirror film | Yoshihisa Yonezawa, Yukio Ogawa | 2005-12-27 |
| 6838822 | Electron tube with a ring-less getter | Yoshihisa Yonezawa, Yukio Ogawa | 2005-01-04 |