Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5387975 | Interferometer for measuring a surface configuration of a test object by an interference pattern using gratings to generate wave fronts | Futoshi Ishida, Kiyofumi Hashimoto, Takao Kobayashi, Yutaka Tokuyama | 1995-02-07 |
| 5323208 | Projection exposure apparatus | Hiroshi Fukuda, Tsutomu Tawa | 1994-06-21 |
| 4736225 | Slit exposure projection device | Masami Tanaka | 1988-04-05 |
| 4577935 | Video projector lens system | Kazuo Yamakawa | 1986-03-25 |
| 4235654 | Method for producing composite optical elements of glass and polymer material | Sigeo Kitaguchi | 1980-11-25 |