Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5951915 | Phosphorescent phosphor | Takashi Hase, Noboru Kotera, Norio Miura, Hitoshi Sakamoto | 1999-09-14 |
| 4631445 | Monochrome display cathode ray tube with long after glow phosphors | Takashi Hase, Hidemi Yoshida, Hideo Suzuki | 1986-12-23 |