Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4807040 | Signal processing filter for an image projection device utilizing an oil film | Tatsuhiko Kondo, Shinetsu Itoh, Masaru Kanazawa, Kiyotaka Okada | 1989-02-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4807040 | Signal processing filter for an image projection device utilizing an oil film | Tatsuhiko Kondo, Shinetsu Itoh, Masaru Kanazawa, Kiyotaka Okada | 1989-02-21 |