Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4878745 | Optical system for effecting increased irradiance in peripheral area of object | Shinichi Nagata, Haruo Uemura | 1989-11-07 |
| 4867542 | Laser exposure apparatus | Shigeaki Shimazu, Eiichi Tamaki, Yasuyuki Wada, Masahide Okazaki, Takeshi Kageyama +1 more | 1989-09-19 |
| 4810068 | Laser exposure apparatus | Shigeaki Shimazu, Eiichi Tamaki, Yasuyuki Wada, Masahide Okazaki, Takeshi Kageyama +1 more | 1989-03-07 |
| 4806889 | Ceramic filter | Fumihito Nakano, Kiyoshi Hagawa, Kohei Wada, Katsuya Jindou | 1989-02-21 |