Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886999 | Cathode ray tube apparatus with quadrupole electrode structure | Ritsuo Ishida, Hisao Nakanishi, Keiji Yanai, Masayuki Toshiyasu, Kazunori Ikegami +4 more | 1989-12-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886999 | Cathode ray tube apparatus with quadrupole electrode structure | Ritsuo Ishida, Hisao Nakanishi, Keiji Yanai, Masayuki Toshiyasu, Kazunori Ikegami +4 more | 1989-12-12 |