Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4842354 | Rotary polygonal mirror and method of making the same | Kimio Takahashi | 1989-06-27 |
| 4826271 | Rotational polygon mirror and method of manufacturing the same | Kimio Takahashi, Kunio Takada | 1989-05-02 |