Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4812880 | Exposure apparatus | Kazufumi Ogawa, Masaru Sasago, Masayuki Endo | 1989-03-14 |
| 4805000 | Exposure apparatus | Kazufumi Ogawa, Masaru Sasago, Masayuki Endo | 1989-02-14 |
| 4805002 | Exposure apparatus | Masaru Sasago, Masayuki Endo, Kazufumi Ogawa | 1989-02-14 |