Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7424332 | Audio signal processing apparatus and related computer program | Kazuhito Okayama, Toshiharu Kuwaoka, Ryouichi Nagata, Haruyuki MORI | 2008-09-09 |
| 5172149 | Drive apparatus and drive control apparatus for optical system of camera | Takaaki Sekiguchi, Yoichi Okabe | 1992-12-15 |
| 5055932 | Zoom lens apparatus with auto-focusing | — | 1991-10-08 |
| 4969044 | Automatic focusing system for use in cameras having zooming function | Toshiharu Hida | 1990-11-06 |