Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5061042 | Phase retarder and liquid crystal display using the same | Kimishige Nakamura, Shuji Kitamura, Toyokazu Okada, Kazuaki Sakakura, Koji Higashi +1 more | 1991-10-29 |
| 4953952 | Color liquid crystal displaying panels | Takuzo Okumura, Toyokazu Okada, Kazuo Nakata | 1990-09-04 |
| 4895677 | Light-polarizing film | Takuzo Okumura, Toyokazu Okada | 1990-01-23 |
| 4859039 | Light-polarizing film | Takuzo Okumura, Toyokazu Okada | 1989-08-22 |
| 4803014 | Light-polarizing film | Takuzo Okumura, Toyokazu Okada | 1989-02-07 |
| 4626304 | Method of making a light-polarizing plate | Takuzo Okumura, Masataka Yanase | 1986-12-02 |
| 4564545 | Light-polarizing plate having excellent durability and production of the same | Takuzo Okumura, Masataka Yanase | 1986-01-14 |