Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4943755 | Magnetic shielding with constant-current coils for CRT | Kazuhiro Chihara, Yasuo Iwasaki | 1990-07-24 |
| 4886999 | Cathode ray tube apparatus with quadrupole electrode structure | Hisakazu Yamane, Ritsuo Ishida, Hisao Nakanishi, Keiji Yanai, Kazunori Ikegami +4 more | 1989-12-12 |
| 4677344 | Display device | Toshinari Kawahara | 1987-06-30 |
| 4634930 | Display device | Toshinari Kawahara | 1987-01-06 |