Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870452 | Projection exposure apparatus | Akikazu Tanimoto, Issei Tanaka | 1989-09-26 |
| 4820899 | Laser beam working system | Ikuo Hikima, Saburo Kamiya, Akikazu Tanimoto | 1989-04-11 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870452 | Projection exposure apparatus | Akikazu Tanimoto, Issei Tanaka | 1989-09-26 |
| 4820899 | Laser beam working system | Ikuo Hikima, Saburo Kamiya, Akikazu Tanimoto | 1989-04-11 |