Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7588747 | Singlet oxygen quencher and composition using the same | Noboru Naito, Kumi Kameyama, Akemi Takayama, Yusei Miyamoto, Masashi Kajita | 2009-09-15 |
| RE37846 | Projection optical system and exposure apparatus using the same | Hitoshi Matsuzawa, Kazumasa Endo, Yutaka Suenaga | 2002-09-17 |
| 5835285 | Projection optical system and exposure apparatus using the same | Hitoshi Matsuzawa, Kazumasa Endo, Yutaka Suenaga | 1998-11-10 |
| 5781278 | Projection optical system and exposure apparatus with the same | Hitoshi Matsuzawa, Yutaka Suenaga | 1998-07-14 |