Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4804882 | Cathode-ray tube including a white phosphor screen | Takeshi Takahara, Mitsuhiro Oikawa, Kazuaki Higuchi, Masaaki Tamatani | 1989-02-14 |
| 4512912 | White luminescent phosphor for use in cathode ray tube | Naotoshi Matsuda, Kazuaki Higuchi | 1985-04-23 |