Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4786845 | Cathode ray tube having an electron gun constructed for ready refocusing of the electron beam | Takefumi Kato, Toshihiro Harada | 1988-11-22 |
| 4754191 | Electron lens system for deflection amplification in a cathode-ray tube | Takefumi Kato | 1988-06-28 |
| 4614895 | Postacceleration cathode ray tube with an electron lens system for deflection amplification | Kimiharu Saito | 1986-09-30 |