Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4776675 | Multicolor liquid crystal display device having printed color filters | Kenichi Masaki | 1988-10-11 |
| 4744635 | Color filter with a porous activated film layer having dye fixed in the minute pores to form color or pattern | Kozo Matsumura, Takao Sumi, Kenichi Masaki | 1988-05-17 |