Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE33081 | Automatic focusing system for video cameras | Kentaro Hanma | 1989-10-03 |
| 4868666 | Automatic focusing apparatus having an automatic offset voltage regulating device | Takashi Azumi | 1989-09-19 |
| 4842387 | Automatic focusing apparatus for use in video camera and the like | Takashi Azumi, Hiroshi Sakurai, Takesuke Maruyama, Yoshihiro Todaka | 1989-06-27 |
| 4797733 | White balance adjusting device for a color video camera | Yasushi Takagi | 1989-01-10 |