Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874985 | Phosphor and electron excited fluorescent display device using the same | Hidemi Yoshida | 1989-10-17 |
| 4845403 | Projection type color picture display system having green picture and blue picture producing CRTs with .gamma. coefficients | Yasukazu Morito, Yasuhiko Uehara, Hidetsugu Matsukiya, Hajime Yamamoto, Shuji Inaho +1 more | 1989-07-04 |
| 4831269 | Phosphors and fluorescent compositions for emission of light under low velocity electron excitation and fluorescent display devices utilizing the same | Akiyasu Kagami | 1989-05-16 |
| 4810416 | Borate phosphor | Toshio Jinnai, Shigeo Fujino, Masato Hayashi, Akio Toshinai | 1989-03-07 |