Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4515706 | Rare earth oxyfluoride barium fluoride halide phosphor | Tsutomu Ishii, Yasuhiro Shirakawa | 1985-05-07 |
| 4436646 | Green-emitting phosphor for cathode-ray tube | Takeo Sato, Takeo Itou, Masaaki Tamatani | 1984-03-13 |
| 4423128 | Method of making picture tube fluorescent screen | Norio Koike, Yasuhiro Shirakawa, Kunihiro Ikari | 1983-12-27 |
| 4309481 | Filter-coated phosphor | Tadashi Wakatsuki | 1982-01-05 |
| 4222890 | Gadolinium-activated phosphate phosphor | Toshio Nishimura, Akira Fujita | 1980-09-16 |
| 4209567 | Red pigment-coated phosphor and method of producing the same | Susumu Matsuura, Toshio Nishimura, Nobuo Inoue | 1980-06-24 |