Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6741020 | Cathode ray, tube including an electron gun having specific relation of axial length of focus electrode and focus electrode-screen distance | Yasuo Tanaka, Toshio Nakayama, Nobuyuki Suzuki, Shoji Shirai | 2004-05-25 |
| 6583547 | Cathode ray tube with UPF type electron gun having particular electrode structure and spacing | Toshio Nakayama, Yasuo Tanaka, Nobuyuki Suzuki, Shoji Shirai | 2003-06-24 |
| 6507143 | Cathode ray tube including an electron gun having specific relation between axial length of focus electrode and lens-screen distance | Yasuo Tanaka, Toshio Nakayama, Nobuyuki Suzuki, Shoji Shirai | 2003-01-14 |
| 5466983 | Cathode ray tube with improved resolution | Shoji Shirai, Kenichi Watanabe | 1995-11-14 |
| 4857795 | Internal magnetic shield support apparatus for color picture tube | Shigemi Hirasawa | 1989-08-15 |